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Message-ID: <000000000000a4618905d1361d3e@google.com>
Date: Sat, 20 Nov 2021 02:47:19 -0800
From: syzbot <syzbot+fba8e2116a12609b6c59@...kaller.appspotmail.com>
To: clm@...com, dsterba@...e.com, glider@...gle.com,
josef@...icpanda.com, linux-btrfs@...r.kernel.org,
linux-kernel@...r.kernel.org, syzkaller-bugs@...glegroups.com
Subject: [syzbot] KMSAN: uninit-value in btrfs_clean_tree_block (2)
Hello,
syzbot found the following issue on:
HEAD commit: 412af9cd936d ioremap.c: move an #include around
git tree: https://github.com/google/kmsan.git master
console output: https://syzkaller.appspot.com/x/log.txt?x=14365606b00000
kernel config: https://syzkaller.appspot.com/x/.config?x=2d142cdf4204061
dashboard link: https://syzkaller.appspot.com/bug?extid=fba8e2116a12609b6c59
compiler: clang version 14.0.0 (git@...hub.com:llvm/llvm-project.git 0996585c8e3b3d409494eb5f1cad714b9e1f7fb5), GNU ld (GNU Binutils for Debian) 2.35.2
userspace arch: i386
Unfortunately, I don't have any reproducer for this issue yet.
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+fba8e2116a12609b6c59@...kaller.appspotmail.com
=====================================================
BUG: KMSAN: uninit-value in btrfs_clean_tree_block+0x2c3/0x370 fs/btrfs/disk-io.c:1126
btrfs_clean_tree_block+0x2c3/0x370 fs/btrfs/disk-io.c:1126
btrfs_init_new_buffer fs/btrfs/extent-tree.c:4741 [inline]
btrfs_alloc_tree_block+0x745/0x20c0 fs/btrfs/extent-tree.c:4818
__btrfs_cow_block+0x823/0x2490 fs/btrfs/ctree.c:415
btrfs_cow_block+0xa4a/0xc80 fs/btrfs/ctree.c:570
commit_cowonly_roots+0x1c5/0x14c0 fs/btrfs/transaction.c:1241
btrfs_commit_transaction+0x1d8a/0x4b10 fs/btrfs/transaction.c:2288
btrfs_commit_super+0x1b7/0x1f0 fs/btrfs/disk-io.c:4303
close_ctree+0x4e4/0xfbd fs/btrfs/disk-io.c:4370
btrfs_put_super+0x53/0x70 fs/btrfs/super.c:340
generic_shutdown_super+0x2bb/0x660 fs/super.c:465
kill_anon_super+0x63/0xb0 fs/super.c:1057
btrfs_kill_super+0x61/0x90 fs/btrfs/super.c:2348
deactivate_locked_super+0x10d/0x1e0 fs/super.c:335
deactivate_super+0x19e/0x1a0 fs/super.c:366
cleanup_mnt+0x797/0x870 fs/namespace.c:1137
__cleanup_mnt+0x3b/0x50 fs/namespace.c:1144
task_work_run+0x1f0/0x2c0 kernel/task_work.c:164
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop+0x3fc/0x490 kernel/entry/common.c:176
exit_to_user_mode_prepare kernel/entry/common.c:208 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline]
syscall_exit_to_user_mode+0x80/0xc0 kernel/entry/common.c:302
__do_fast_syscall_32+0xa5/0xf0 arch/x86/entry/common.c:183
do_fast_syscall_32+0x34/0x70 arch/x86/entry/common.c:205
do_SYSENTER_32+0x1b/0x20 arch/x86/entry/common.c:248
entry_SYSENTER_compat_after_hwframe+0x4d/0x5c
Uninit was created at:
__alloc_pages+0x8b3/0xfb0 mm/page_alloc.c:5422
alloc_pages+0xa39/0xde0 mm/mempolicy.c:2191
__page_cache_alloc mm/filemap.c:1022 [inline]
pagecache_get_page+0x1384/0x1ec0 mm/filemap.c:1940
find_or_create_page include/linux/pagemap.h:420 [inline]
alloc_extent_buffer+0x8c5/0x3420 fs/btrfs/extent_io.c:6124
btrfs_find_create_tree_block+0xb2/0xd0 fs/btrfs/disk-io.c:1090
btrfs_init_new_buffer fs/btrfs/extent-tree.c:4717 [inline]
btrfs_alloc_tree_block+0x507/0x20c0 fs/btrfs/extent-tree.c:4818
__btrfs_cow_block+0x823/0x2490 fs/btrfs/ctree.c:415
btrfs_cow_block+0xa4a/0xc80 fs/btrfs/ctree.c:570
commit_cowonly_roots+0x1c5/0x14c0 fs/btrfs/transaction.c:1241
btrfs_commit_transaction+0x1d8a/0x4b10 fs/btrfs/transaction.c:2288
btrfs_commit_super+0x1b7/0x1f0 fs/btrfs/disk-io.c:4303
close_ctree+0x4e4/0xfbd fs/btrfs/disk-io.c:4370
btrfs_put_super+0x53/0x70 fs/btrfs/super.c:340
generic_shutdown_super+0x2bb/0x660 fs/super.c:465
kill_anon_super+0x63/0xb0 fs/super.c:1057
btrfs_kill_super+0x61/0x90 fs/btrfs/super.c:2348
deactivate_locked_super+0x10d/0x1e0 fs/super.c:335
deactivate_super+0x19e/0x1a0 fs/super.c:366
cleanup_mnt+0x797/0x870 fs/namespace.c:1137
__cleanup_mnt+0x3b/0x50 fs/namespace.c:1144
task_work_run+0x1f0/0x2c0 kernel/task_work.c:164
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop+0x3fc/0x490 kernel/entry/common.c:176
exit_to_user_mode_prepare kernel/entry/common.c:208 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline]
syscall_exit_to_user_mode+0x80/0xc0 kernel/entry/common.c:302
__do_fast_syscall_32+0xa5/0xf0 arch/x86/entry/common.c:183
do_fast_syscall_32+0x34/0x70 arch/x86/entry/common.c:205
do_SYSENTER_32+0x1b/0x20 arch/x86/entry/common.c:248
entry_SYSENTER_compat_after_hwframe+0x4d/0x5c
=====================================================
=====================================================
BUG: KMSAN: uninit-value in btrfs_clean_tree_block+0x2c3/0x370 fs/btrfs/disk-io.c:1126
btrfs_clean_tree_block+0x2c3/0x370 fs/btrfs/disk-io.c:1126
btrfs_init_new_buffer fs/btrfs/extent-tree.c:4741 [inline]
btrfs_alloc_tree_block+0x745/0x20c0 fs/btrfs/extent-tree.c:4818
__btrfs_cow_block+0x823/0x2490 fs/btrfs/ctree.c:415
btrfs_cow_block+0xa4a/0xc80 fs/btrfs/ctree.c:570
btrfs_search_slot+0x1933/0x3de0 fs/btrfs/ctree.c:1768
update_dev_stat_item fs/btrfs/volumes.c:7715 [inline]
btrfs_run_dev_stats+0x449/0x1350 fs/btrfs/volumes.c:7792
commit_cowonly_roots+0x2ef/0x14c0 fs/btrfs/transaction.c:1249
btrfs_commit_transaction+0x1d8a/0x4b10 fs/btrfs/transaction.c:2288
btrfs_commit_super+0x1b7/0x1f0 fs/btrfs/disk-io.c:4303
close_ctree+0x4e4/0xfbd fs/btrfs/disk-io.c:4370
btrfs_put_super+0x53/0x70 fs/btrfs/super.c:340
generic_shutdown_super+0x2bb/0x660 fs/super.c:465
kill_anon_super+0x63/0xb0 fs/super.c:1057
btrfs_kill_super+0x61/0x90 fs/btrfs/super.c:2348
deactivate_locked_super+0x10d/0x1e0 fs/super.c:335
deactivate_super+0x19e/0x1a0 fs/super.c:366
cleanup_mnt+0x797/0x870 fs/namespace.c:1137
__cleanup_mnt+0x3b/0x50 fs/namespace.c:1144
task_work_run+0x1f0/0x2c0 kernel/task_work.c:164
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop+0x3fc/0x490 kernel/entry/common.c:176
exit_to_user_mode_prepare kernel/entry/common.c:208 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline]
syscall_exit_to_user_mode+0x80/0xc0 kernel/entry/common.c:302
__do_fast_syscall_32+0xa5/0xf0 arch/x86/entry/common.c:183
do_fast_syscall_32+0x34/0x70 arch/x86/entry/common.c:205
do_SYSENTER_32+0x1b/0x20 arch/x86/entry/common.c:248
entry_SYSENTER_compat_after_hwframe+0x4d/0x5c
Uninit was created at:
__alloc_pages+0x8b3/0xfb0 mm/page_alloc.c:5422
alloc_pages+0xa39/0xde0 mm/mempolicy.c:2191
__page_cache_alloc mm/filemap.c:1022 [inline]
pagecache_get_page+0x1384/0x1ec0 mm/filemap.c:1940
find_or_create_page include/linux/pagemap.h:420 [inline]
alloc_extent_buffer+0x8c5/0x3420 fs/btrfs/extent_io.c:6124
btrfs_find_create_tree_block+0xb2/0xd0 fs/btrfs/disk-io.c:1090
btrfs_init_new_buffer fs/btrfs/extent-tree.c:4717 [inline]
btrfs_alloc_tree_block+0x507/0x20c0 fs/btrfs/extent-tree.c:4818
__btrfs_cow_block+0x823/0x2490 fs/btrfs/ctree.c:415
btrfs_cow_block+0xa4a/0xc80 fs/btrfs/ctree.c:570
btrfs_search_slot+0x1933/0x3de0 fs/btrfs/ctree.c:1768
update_dev_stat_item fs/btrfs/volumes.c:7715 [inline]
btrfs_run_dev_stats+0x449/0x1350 fs/btrfs/volumes.c:7792
commit_cowonly_roots+0x2ef/0x14c0 fs/btrfs/transaction.c:1249
btrfs_commit_transaction+0x1d8a/0x4b10 fs/btrfs/transaction.c:2288
btrfs_commit_super+0x1b7/0x1f0 fs/btrfs/disk-io.c:4303
close_ctree+0x4e4/0xfbd fs/btrfs/disk-io.c:4370
btrfs_put_super+0x53/0x70 fs/btrfs/super.c:340
generic_shutdown_super+0x2bb/0x660 fs/super.c:465
kill_anon_super+0x63/0xb0 fs/super.c:1057
btrfs_kill_super+0x61/0x90 fs/btrfs/super.c:2348
deactivate_locked_super+0x10d/0x1e0 fs/super.c:335
deactivate_super+0x19e/0x1a0 fs/super.c:366
cleanup_mnt+0x797/0x870 fs/namespace.c:1137
__cleanup_mnt+0x3b/0x50 fs/namespace.c:1144
task_work_run+0x1f0/0x2c0 kernel/task_work.c:164
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop+0x3fc/0x490 kernel/entry/common.c:176
exit_to_user_mode_prepare kernel/entry/common.c:208 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline]
syscall_exit_to_user_mode+0x80/0xc0 kernel/entry/common.c:302
__do_fast_syscall_32+0xa5/0xf0 arch/x86/entry/common.c:183
do_fast_syscall_32+0x34/0x70 arch/x86/entry/common.c:205
do_SYSENTER_32+0x1b/0x20 arch/x86/entry/common.c:248
entry_SYSENTER_compat_after_hwframe+0x4d/0x5c
=====================================================
=====================================================
BUG: KMSAN: uninit-value in btrfs_comp_cpu_keys fs/btrfs/ctree.c:627 [inline]
BUG: KMSAN: uninit-value in comp_keys fs/btrfs/ctree.c:603 [inline]
BUG: KMSAN: uninit-value in generic_bin_search+0x805/0xc30 fs/btrfs/ctree.c:777
btrfs_comp_cpu_keys fs/btrfs/ctree.c:627 [inline]
comp_keys fs/btrfs/ctree.c:603 [inline]
generic_bin_search+0x805/0xc30 fs/btrfs/ctree.c:777
btrfs_search_slot+0x1f12/0x3de0 fs/btrfs/ctree.c:1816
update_dev_stat_item fs/btrfs/volumes.c:7715 [inline]
btrfs_run_dev_stats+0x449/0x1350 fs/btrfs/volumes.c:7792
commit_cowonly_roots+0x2ef/0x14c0 fs/btrfs/transaction.c:1249
btrfs_commit_transaction+0x1d8a/0x4b10 fs/btrfs/transaction.c:2288
btrfs_commit_super+0x1b7/0x1f0 fs/btrfs/disk-io.c:4303
close_ctree+0x4e4/0xfbd fs/btrfs/disk-io.c:4370
btrfs_put_super+0x53/0x70 fs/btrfs/super.c:340
generic_shutdown_super+0x2bb/0x660 fs/super.c:465
kill_anon_super+0x63/0xb0 fs/super.c:1057
btrfs_kill_super+0x61/0x90 fs/btrfs/super.c:2348
deactivate_locked_super+0x10d/0x1e0 fs/super.c:335
deactivate_super+0x19e/0x1a0 fs/super.c:366
cleanup_mnt+0x797/0x870 fs/namespace.c:1137
__cleanup_mnt+0x3b/0x50 fs/namespace.c:1144
task_work_run+0x1f0/0x2c0 kernel/task_work.c:164
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop+0x3fc/0x490 kernel/entry/common.c:176
exit_to_user_mode_prepare kernel/entry/common.c:208 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline]
syscall_exit_to_user_mode+0x80/0xc0 kernel/entry/common.c:302
__do_fast_syscall_32+0xa5/0xf0 arch/x86/entry/common.c:183
do_fast_syscall_32+0x34/0x70 arch/x86/entry/common.c:205
do_SYSENTER_32+0x1b/0x20 arch/x86/entry/common.c:248
entry_SYSENTER_compat_after_hwframe+0x4d/0x5c
Uninit was created at:
__alloc_pages+0x8b3/0xfb0 mm/page_alloc.c:5422
alloc_pages+0xa39/0xde0 mm/mempolicy.c:2191
__page_cache_alloc mm/filemap.c:1022 [inline]
pagecache_get_page+0x1384/0x1ec0 mm/filemap.c:1940
find_or_create_page include/linux/pagemap.h:420 [inline]
alloc_extent_buffer+0x8c5/0x3420 fs/btrfs/extent_io.c:6124
btrfs_find_create_tree_block+0xb2/0xd0 fs/btrfs/disk-io.c:1090
btrfs_init_new_buffer fs/btrfs/extent-tree.c:4717 [inline]
btrfs_alloc_tree_block+0x507/0x20c0 fs/btrfs/extent-tree.c:4818
__btrfs_cow_block+0x823/0x2490 fs/btrfs/ctree.c:415
btrfs_cow_block+0xa4a/0xc80 fs/btrfs/ctree.c:570
btrfs_search_slot+0x1933/0x3de0 fs/btrfs/ctree.c:1768
update_dev_stat_item fs/btrfs/volumes.c:7715 [inline]
btrfs_run_dev_stats+0x449/0x1350 fs/btrfs/volumes.c:7792
commit_cowonly_roots+0x2ef/0x14c0 fs/btrfs/transaction.c:1249
btrfs_commit_transaction+0x1d8a/0x4b10 fs/btrfs/transaction.c:2288
btrfs_commit_super+0x1b7/0x1f0 fs/btrfs/disk-io.c:4303
close_ctree+0x4e4/0xfbd fs/btrfs/disk-io.c:4370
btrfs_put_super+0x53/0x70 fs/btrfs/super.c:340
generic_shutdown_super+0x2bb/0x660 fs/super.c:465
kill_anon_super+0x63/0xb0 fs/super.c:1057
btrfs_kill_super+0x61/0x90 fs/btrfs/super.c:2348
deactivate_locked_super+0x10d/0x1e0 fs/super.c:335
deactivate_super+0x19e/0x1a0 fs/super.c:366
cleanup_mnt+0x797/0x870 fs/namespace.c:1137
__cleanup_mnt+0x3b/0x50 fs/namespace.c:1144
task_work_run+0x1f0/0x2c0 kernel/task_work.c:164
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop+0x3fc/0x490 kernel/entry/common.c:176
exit_to_user_mode_prepare kernel/entry/common.c:208 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline]
syscall_exit_to_user_mode+0x80/0xc0 kernel/entry/common.c:302
__do_fast_syscall_32+0xa5/0xf0 arch/x86/entry/common.c:183
do_fast_syscall_32+0x34/0x70 arch/x86/entry/common.c:205
do_SYSENTER_32+0x1b/0x20 arch/x86/entry/common.c:248
entry_SYSENTER_compat_after_hwframe+0x4d/0x5c
=====================================================
=====================================================
BUG: KMSAN: uninit-value in btrfs_comp_cpu_keys fs/btrfs/ctree.c:627 [inline]
BUG: KMSAN: uninit-value in comp_keys fs/btrfs/ctree.c:603 [inline]
BUG: KMSAN: uninit-value in generic_bin_search+0x805/0xc30 fs/btrfs/ctree.c:777
btrfs_comp_cpu_keys fs/btrfs/ctree.c:627 [inline]
comp_keys fs/btrfs/ctree.c:603 [inline]
generic_bin_search+0x805/0xc30 fs/btrfs/ctree.c:777
btrfs_search_slot+0x1f12/0x3de0 fs/btrfs/ctree.c:1816
update_dev_stat_item fs/btrfs/volumes.c:7715 [inline]
btrfs_run_dev_stats+0x449/0x1350 fs/btrfs/volumes.c:7792
commit_cowonly_roots+0x2ef/0x14c0 fs/btrfs/transaction.c:1249
btrfs_commit_transaction+0x1d8a/0x4b10 fs/btrfs/transaction.c:2288
btrfs_commit_super+0x1b7/0x1f0 fs/btrfs/disk-io.c:4303
close_ctree+0x4e4/0xfbd fs/btrfs/disk-io.c:4370
btrfs_put_super+0x53/0x70 fs/btrfs/super.c:340
generic_shutdown_super+0x2bb/0x660 fs/super.c:465
kill_anon_super+0x63/0xb0 fs/super.c:1057
btrfs_kill_super+0x61/0x90 fs/btrfs/super.c:2348
deactivate_locked_super+0x10d/0x1e0 fs/super.c:335
deactivate_super+0x19e/0x1a0 fs/super.c:366
cleanup_mnt+0x797/0x870 fs/namespace.c:1137
__cleanup_mnt+0x3b/0x50 fs/namespace.c:1144
task_work_run+0x1f0/0x2c0 kernel/task_work.c:164
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop+0x3fc/0x490 kernel/entry/common.c:176
exit_to_user_mode_prepare kernel/entry/common.c:208 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline]
syscall_exit_to_user_mode+0x80/0xc0 kernel/entry/common.c:302
__do_fast_syscall_32+0xa5/0xf0 arch/x86/entry/common.c:183
do_fast_syscall_32+0x34/0x70 arch/x86/entry/common.c:205
do_SYSENTER_32+0x1b/0x20 arch/x86/entry/common.c:248
entry_SYSENTER_compat_after_hwframe+0x4d/0x5c
Uninit was created at:
__alloc_pages+0x8b3/0xfb0 mm/page_alloc.c:5422
alloc_pages+0xa39/0xde0 mm/mempolicy.c:2191
__page_cache_alloc mm/filemap.c:1022 [inline]
pagecache_get_page+0x1384/0x1ec0 mm/filemap.c:1940
find_or_create_page include/linux/pagemap.h:420 [inline]
alloc_extent_buffer+0x8c5/0x3420 fs/btrfs/extent_io.c:6124
btrfs_find_create_tree_block+0xb2/0xd0 fs/btrfs/disk-io.c:1090
btrfs_init_new_buffer fs/btrfs/extent-tree.c:4717 [inline]
btrfs_alloc_tree_block+0x507/0x20c0 fs/btrfs/extent-tree.c:4818
__btrfs_cow_block+0x823/0x2490 fs/btrfs/ctree.c:415
btrfs_cow_block+0xa4a/0xc80 fs/btrfs/ctree.c:570
btrfs_search_slot+0x1933/0x3de0 fs/btrfs/ctree.c:1768
update_dev_stat_item fs/btrfs/volumes.c:7715 [inline]
btrfs_run_dev_stats+0x449/0x1350 fs/btrfs/volumes.c:7792
commit_cowonly_roots+0x2ef/0x14c0 fs/btrfs/transaction.c:1249
btrfs_commit_transaction+0x1d8a/0x4b10 fs/btrfs/transaction.c:2288
btrfs_commit_super+0x1b7/0x1f0 fs/btrfs/disk-io.c:4303
close_ctree+0x4e4/0xfbd fs/btrfs/disk-io.c:4370
btrfs_put_super+0x53/0x70 fs/btrfs/super.c:340
generic_shutdown_super+0x2bb/0x660 fs/super.c:465
kill_anon_super+0x63/0xb0 fs/super.c:1057
btrfs_kill_super+0x61/0x90 fs/btrfs/super.c:2348
deactivate_locked_super+0x10d/0x1e0 fs/super.c:335
deactivate_super+0x19e/0x1a0 fs/super.c:366
cleanup_mnt+0x797/0x870 fs/namespace.c:1137
__cleanup_mnt+0x3b/0x50 fs/namespace.c:1144
task_work_run+0x1f0/0x2c0 kernel/task_work.c:164
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop+0x3fc/0x490 kernel/entry/common.c:176
exit_to_user_mode_prepare kernel/entry/common.c:208 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline]
syscall_exit_to_user_mode+0x80/0xc0 kernel/entry/common.c:302
__do_fast_syscall_32+0xa5/0xf0 arch/x86/entry/common.c:183
do_fast_syscall_32+0x34/0x70 arch/x86/entry/common.c:205
do_SYSENTER_32+0x1b/0x20 arch/x86/entry/common.c:248
entry_SYSENTER_compat_after_hwframe+0x4d/0x5c
=====================================================
=====================================================
BUG: KMSAN: uninit-value in btrfs_comp_cpu_keys fs/btrfs/ctree.c:631 [inline]
BUG: KMSAN: uninit-value in comp_keys fs/btrfs/ctree.c:603 [inline]
BUG: KMSAN: uninit-value in generic_bin_search+0x87d/0xc30 fs/btrfs/ctree.c:777
btrfs_comp_cpu_keys fs/btrfs/ctree.c:631 [inline]
comp_keys fs/btrfs/ctree.c:603 [inline]
generic_bin_search+0x87d/0xc30 fs/btrfs/ctree.c:777
btrfs_search_slot+0x1f12/0x3de0 fs/btrfs/ctree.c:1816
update_dev_stat_item fs/btrfs/volumes.c:7715 [inline]
btrfs_run_dev_stats+0x449/0x1350 fs/btrfs/volumes.c:7792
commit_cowonly_roots+0x2ef/0x14c0 fs/btrfs/transaction.c:1249
btrfs_commit_transaction+0x1d8a/0x4b10 fs/btrfs/transaction.c:2288
btrfs_commit_super+0x1b7/0x1f0 fs/btrfs/disk-io.c:4303
close_ctree+0x4e4/0xfbd fs/btrfs/disk-io.c:4370
btrfs_put_super+0x53/0x70 fs/btrfs/super.c:340
generic_shutdown_super+0x2bb/0x660 fs/super.c:465
kill_anon_super+0x63/0xb0 fs/super.c:1057
btrfs_kill_super+0x61/0x90 fs/btrfs/super.c:2348
deactivate_locked_super+0x10d/0x1e0 fs/super.c:335
deactivate_super+0x19e/0x1a0 fs/super.c:366
cleanup_mnt+0x797/0x870 fs/namespace.c:1137
__cleanup_mnt+0x3b/0x50 fs/namespace.c:1144
task_work_run+0x1f0/0x2c0 kernel/task_work.c:164
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop+0x3fc/0x490 kernel/entry/common.c:176
exit_to_user_mode_prepare kernel/entry/common.c:208 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline]
syscall_exit_to_user_mode+0x80/0xc0 kernel/entry/common.c:302
__do_fast_syscall_32+0xa5/0xf0 arch/x86/entry/common.c:183
do_fast_syscall_32+0x34/0x70 arch/x86/entry/common.c:205
do_SYSENTER_32+0x1b/0x20 arch/x86/entry/common.c:248
entry_SYSENTER_compat_after_hwframe+0x4d/0x5c
Uninit was created at:
__alloc_pages+0x8b3/0xfb0 mm/page_alloc.c:5422
alloc_pages+0xa39/0xde0 mm/mempolicy.c:2191
__page_cache_alloc mm/filemap.c:1022 [inline]
pagecache_get_page+0x1384/0x1ec0 mm/filemap.c:1940
find_or_create_page include/linux/pagemap.h:420 [inline]
alloc_extent_buffer+0x8c5/0x3420 fs/btrfs/extent_io.c:6124
btrfs_find_create_tree_block+0xb2/0xd0 fs/btrfs/disk-io.c:1090
btrfs_init_new_buffer fs/btrfs/extent-tree.c:4717 [inline]
btrfs_alloc_tree_block+0x507/0x20c0 fs/btrfs/extent-tree.c:4818
__btrfs_cow_block+0x823/0x2490 fs/btrfs/ctree.c:415
btrfs_cow_block+0xa4a/0xc80 fs/btrfs/ctree.c:570
btrfs_search_slot+0x1933/0x3de0 fs/btrfs/ctree.c:1768
update_dev_stat_item fs/btrfs/volumes.c:7715 [inline]
btrfs_run_dev_stats+0x449/0x1350 fs/btrfs/volumes.c:7792
commit_cowonly_roots+0x2ef/0x14c0 fs/btrfs/transaction.c:1249
btrfs_commit_transaction+0x1d8a/0x4b10 fs/btrfs/transaction.c:2288
btrfs_commit_super+0x1b7/0x1f0 fs/btrfs/disk-io.c:4303
close_ctree+0x4e4/0xfbd fs/btrfs/disk-io.c:4370
btrfs_put_super+0x53/0x70 fs/btrfs/super.c:340
generic_shutdown_super+0x2bb/0x660 fs/super.c:465
kill_anon_super+0x63/0xb0 fs/super.c:1057
btrfs_kill_super+0x61/0x90 fs/btrfs/super.c:2348
deactivate_locked_super+0x10d/0x1e0 fs/super.c:335
deactivate_super+0x19e/0x1a0 fs/super.c:366
cleanup_mnt+0x797/0x870 fs/namespace.c:1137
__cleanup_mnt+0x3b/0x50 fs/namespace.c:1144
task_work_run+0x1f0/0x2c0 kernel/task_work.c:164
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop+0x3fc/0x490 kernel/entry/common.c:176
exit_to_user_mode_prepare kernel/entry/common.c:208 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline]
syscall_exit_to_user_mode+0x80/0xc0 kernel/entry/common.c:302
__do_fast_syscall_32+0xa5/0xf0 arch/x86/entry/common.c:183
do_fast_syscall_32+0x34/0x70 arch/x86/entry/common.c:205
do_SYSENTER_32+0x1b/0x20 arch/x86/entry/common.c:248
entry_SYSENTER_compat_after_hwframe+0x4d/0x5c
=====================================================
=====================================================
BUG: KMSAN: uninit-value in btrfs_comp_cpu_keys fs/btrfs/ctree.c:633 [inline]
BUG: KMSAN: uninit-value in comp_keys fs/btrfs/ctree.c:603 [inline]
BUG: KMSAN: uninit-value in generic_bin_search+0x896/0xc30 fs/btrfs/ctree.c:777
btrfs_comp_cpu_keys fs/btrfs/ctree.c:633 [inline]
comp_keys fs/btrfs/ctree.c:603 [inline]
generic_bin_search+0x896/0xc30 fs/btrfs/ctree.c:777
btrfs_search_slot+0x1f12/0x3de0 fs/btrfs/ctree.c:1816
update_dev_stat_item fs/btrfs/volumes.c:7715 [inline]
btrfs_run_dev_stats+0x449/0x1350 fs/btrfs/volumes.c:7792
commit_cowonly_roots+0x2ef/0x14c0 fs/btrfs/transaction.c:1249
btrfs_commit_transaction+0x1d8a/0x4b10 fs/btrfs/transaction.c:2288
btrfs_commit_super+0x1b7/0x1f0 fs/btrfs/disk-io.c:4303
close_ctree+0x4e4/0xfbd fs/btrfs/disk-io.c:4370
btrfs_put_super+0x53/0x70 fs/btrfs/super.c:340
generic_shutdown_super+0x2bb/0x660 fs/super.c:465
kill_anon_super+0x63/0xb0 fs/super.c:1057
btrfs_kill_super+0x61/0x90 fs/btrfs/super.c:2348
deactivate_locked_super+0x10d/0x1e0 fs/super.c:335
deactivate_super+0x19e/0x1a0 fs/super.c:366
cleanup_mnt+0x797/0x870 fs/namespace.c:1137
__cleanup_mnt+0x3b/0x50 fs/namespace.c:1144
task_work_run+0x1f0/0x2c0 kernel/task_work.c:164
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop+0x3fc/0x490 kernel/entry/common.c:176
exit_to_user_mode_prepare kernel/entry/common.c:208 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline]
syscall_exit_to_user_mode+0x80/0xc0 kernel/entry/common.c:302
__do_fast_syscall_32+0xa5/0xf0 arch/x86/entry/common.c:183
do_fast_syscall_32+0x34/0x70 arch/x86/entry/common.c:205
do_SYSENTER_32+0x1b/0x20 arch/x86/entry/common.c:248
entry_SYSENTER_compat_after_hwframe+0x4d/0x5c
Uninit was created at:
__alloc_pages+0x8b3/0xfb0 mm/page_alloc.c:5422
alloc_pages+0xa39/0xde0 mm/mempolicy.c:2191
__page_cache_alloc mm/filemap.c:1022 [inline]
pagecache_get_page+0x1384/0x1ec0 mm/filemap.c:1940
find_or_create_page include/linux/pagemap.h:420 [inline]
alloc_extent_buffer+0x8c5/0x3420 fs/btrfs/extent_io.c:6124
btrfs_find_create_tree_block+0xb2/0xd0 fs/btrfs/disk-io.c:1090
btrfs_init_new_buffer fs/btrfs/extent-tree.c:4717 [inline]
btrfs_alloc_tree_block+0x507/0x20c0 fs/btrfs/extent-tree.c:4818
__btrfs_cow_block+0x823/0x2490 fs/btrfs/ctree.c:415
btrfs_cow_block+0xa4a/0xc80 fs/btrfs/ctree.c:570
btrfs_search_slot+0x1933/0x3de0 fs/btrfs/ctree.c:1768
update_dev_stat_item fs/btrfs/volumes.c:7715 [inline]
btrfs_run_dev_stats+0x449/0x1350 fs/btrfs/volumes.c:7792
commit_cowonly_roots+0x2ef/0x14c0 fs/btrfs/transaction.c:1249
btrfs_commit_transaction+0x1d8a/0x4b10 fs/btrfs/transaction.c:2288
btrfs_commit_super+0x1b7/0x1f0 fs/btrfs/disk-io.c:4303
close_ctree+0x4e4/0xfbd fs/btrfs/disk-io.c:4370
btrfs_put_super+0x53/0x70 fs/btrfs/super.c:340
generic_shutdown_super+0x2bb/0x660 fs/super.c:465
kill_anon_super+0x63/0xb0 fs/super.c:1057
btrfs_kill_super+0x61/0x90 fs/btrfs/super.c:2348
deactivate_locked_super+0x10d/0x1e0 fs/super.c:335
deactivate_super+0x19e/0x1a0 fs/super.c:366
cleanup_mnt+0x797/0x870 fs/namespace.c:1137
__cleanup_mnt+0x3b/0x50 fs/namespace.c:1144
task_work_run+0x1f0/0x2c0 kernel/task_work.c:164
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop+0x3fc/0x490 kernel/entry/common.c:176
exit_to_user_mode_prepare kernel/entry/common.c:208 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline]
syscall_exit_to_user_mode+0x80/0xc0 kernel/entry/common.c:302
__do_fast_syscall_32+0xa5/0xf0 arch/x86/entry/common.c:183
do_fast_syscall_32+0x34/0x70 arch/x86/entry/common.c:205
do_SYSENTER_32+0x1b/0x20 arch/x86/entry/common.c:248
entry_SYSENTER_compat_after_hwframe+0x4d/0x5c
=====================================================
=====================================================
BUG: KMSAN: uninit-value in btrfs_comp_cpu_keys fs/btrfs/ctree.c:635 [inline]
BUG: KMSAN: uninit-value in comp_keys fs/btrfs/ctree.c:603 [inline]
BUG: KMSAN: uninit-value in generic_bin_search+0x8d0/0xc30 fs/btrfs/ctree.c:777
btrfs_comp_cpu_keys fs/btrfs/ctree.c:635 [inline]
comp_keys fs/btrfs/ctree.c:603 [inline]
generic_bin_search+0x8d0/0xc30 fs/btrfs/ctree.c:777
btrfs_search_slot+0x1f12/0x3de0 fs/btrfs/ctree.c:1816
update_dev_stat_item fs/btrfs/volumes.c:7715 [inline]
btrfs_run_dev_stats+0x449/0x1350 fs/btrfs/volumes.c:7792
commit_cowonly_roots+0x2ef/0x14c0 fs/btrfs/transaction.c:1249
btrfs_commit_transaction+0x1d8a/0x4b10 fs/btrfs/transaction.c:2288
btrfs_commit_super+0x1b7/0x1f0 fs/btrfs/disk-io.c:4303
close_ctree+0x4e4/0xfbd fs/btrfs/disk-io.c:4370
btrfs_put_super+0x53/0x70 fs/btrfs/super.c:340
generic_shutdown_super+0x2bb/0x660 fs/super.c:465
kill_anon_super+0x63/0xb0 fs/super.c:1057
btrfs_kill_super+0x61/0x90 fs/btrfs/super.c:2348
deactivate_locked_super+0x10d/0x1e0 fs/super.c:335
deactivate_super+0x19e/0x1a0 fs/super.c:366
cleanup_mnt+0x797/0x870 fs/namespace.c:1137
__cleanup_mnt+0x3b/0x50 fs/namespace.c:1144
task_work_run+0x1f0/0x2c0 kernel/task_work.c:164
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop+0x3fc/0x490 kernel/entry/common.c:176
exit_to_user_mode_prepare kernel/entry/common.c:208 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline]
syscall_exit_to_user_mode+0x80/0xc0 kernel/entry/common.c:302
__do_fast_syscall_32+0xa5/0xf0 arch/x86/entry/common.c:183
do_fast_syscall_32+0x34/0x70 arch/x86/entry/common.c:205
do_SYSENTER_32+0x1b/0x20 arch/x86/entry/common.c:248
entry_SYSENTER_compat_after_hwframe+0x4d/0x5c
Uninit was created at:
__alloc_pages+0x8b3/0xfb0 mm/page_alloc.c:5422
alloc_pages+0xa39/0xde0 mm/mempolicy.c:2191
__page_cache_alloc mm/filemap.c:1022 [inline]
pagecache_get_page+0x1384/0x1ec0 mm/filemap.c:1940
find_or_create_page include/linux/pagemap.h:420 [inline]
alloc_extent_buffer+0x8c5/0x3420 fs/btrfs/extent_io.c:6124
btrfs_find_create_tree_block+0xb2/0xd0 fs/btrfs/disk-io.c:1090
btrfs_init_new_buffer fs/btrfs/extent-tree.c:4717 [inline]
btrfs_alloc_tree_block+0x507/0x20c0 fs/btrfs/extent-tree.c:4818
__btrfs_cow_block+0x823/0x2490 fs/btrfs/ctree.c:415
btrfs_cow_block+0xa4a/0xc80 fs/btrfs/ctree.c:570
btrfs_search_slot+0x1933/0x3de0 fs/btrfs/ctree.c:1768
update_dev_stat_item fs/btrfs/volumes.c:7715 [inline]
btrfs_run_dev_stats+0x449/0x1350 fs/btrfs/volumes.c:7792
commit_cowonly_roots+0x2ef/0x14c0 fs/btrfs/transaction.c:1249
btrfs_commit_transaction+0x1d8a/0x4b10 fs/btrfs/transaction.c:2288
btrfs_commit_super+0x1b7/0x1f0 fs/btrfs/disk-io.c:4303
close_ctree+0x4e4/0xfbd fs/btrfs/disk-io.c:4370
btrfs_put_super+0x53/0x70 fs/btrfs/super.c:340
generic_shutdown_super+0x2bb/0x660 fs/super.c:465
kill_anon_super+0x63/0xb0 fs/super.c:1057
btrfs_kill_super+0x61/0x90 fs/btrfs/super.c:2348
deactivate_locked_super+0x10d/0x1e0 fs/super.c:335
deactivate_super+0x19e/0x1a0 fs/super.c:366
cleanup_mnt+0x797/0x870 fs/namespace.c:1137
__cleanup_mnt+0x3b/0x50 fs/namespace.c:1144
task_work_run+0x1f0/0x2c0 kernel/task_work.c:164
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop+0x3fc/0x490 kernel/entry/common.c:176
exit_to_user_mode_prepare kernel/entry/common.c:208 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline]
syscall_exit_to_user_mode+0x80/0xc0 kernel/entry/common.c:302
__do_fast_syscall_32+0xa5/0xf0 arch/x86/entry/common.c:183
do_fast_syscall_32+0x34/0x70 arch/x86/entry/common.c:205
do_SYSENTER_32+0x1b/0x20 arch/x86/entry/common.c:248
entry_SYSENTER_compat_after_hwframe+0x4d/0x5c
=====================================================
=====================================================
BUG: KMSAN: uninit-value in generic_bin_search+0x8e8/0xc30 fs/btrfs/ctree.c:779
generic_bin_search+0x8e8/0xc30 fs/btrfs/ctree.c:779
btrfs_search_slot+0x1f12/0x3de0 fs/btrfs/ctree.c:1816
update_dev_stat_item fs/btrfs/volumes.c:7715 [inline]
btrfs_run_dev_stats+0x449/0x1350 fs/btrfs/volumes.c:7792
commit_cowonly_roots+0x2ef/0x14c0 fs/btrfs/transaction.c:1249
btrfs_commit_transaction+0x1d8a/0x4b10 fs/btrfs/transaction.c:2288
btrfs_commit_super+0x1b7/0x1f0 fs/btrfs/disk-io.c:4303
close_ctree+0x4e4/0xfbd fs/btrfs/disk-io.c:4370
btrfs_put_super+0x53/0x70 fs/btrfs/super.c:340
generic_shutdown_super+0x2bb/0x660 fs/super.c:465
kill_anon_super+0x63/0xb0 fs/super.c:1057
btrfs_kill_super+0x61/0x90 fs/btrfs/super.c:2348
deactivate_locked_super+0x10d/0x1e0 fs/super.c:335
deactivate_super+0x19e/0x1a0 fs/super.c:366
cleanup_mnt+0x797/0x870 fs/namespace.c:1137
__cleanup_mnt+0x3b/0x50 fs/namespace.c:1144
task_work_run+0x1f0/0x2c0 kernel/task_work.c:164
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop+0x3fc/0x490 kernel/entry/common.c:176
exit_to_user_mode_prepare kernel/entry/common.c:208 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline]
syscall_exit_to_user_mode+0x80/0xc0 kernel/entry/common.c:302
__do_fast_syscall_32+0xa5/0xf0 arch/x86/entry/common.c:183
do_fast_syscall_32+0x34/0x70 arch/x86/entry/common.c:205
do_SYSENTER_32+0x1b/0x20 arch/x86/entry/common.c:248
entry_SYSENTER_compat_after_hwframe+0x4d/0x5c
Uninit was created at:
__alloc_pages+0x8b3/0xfb0 mm/page_alloc.c:5422
alloc_pages+0xa39/0xde0 mm/mempolicy.c:2191
__page_cache_alloc mm/filemap.c:1022 [inline]
pagecache_get_page+0x1384/0x1ec0 mm/filemap.c:1940
find_or_create_page include/linux/pagemap.h:420 [inline]
alloc_extent_buffer+0x8c5/0x3420 fs/btrfs/extent_io.c:6124
btrfs_find_create_tree_block+0xb2/0xd0 fs/btrfs/disk-io.c:1090
btrfs_init_new_buffer fs/btrfs/extent-tree.c:4717 [inline]
btrfs_alloc_tree_block+0x507/0x20c0 fs/btrfs/extent-tree.c:4818
__btrfs_cow_block+0x823/0x2490 fs/btrfs/ctree.c:415
btrfs_cow_block+0xa4a/0xc80 fs/btrfs/ctree.c:570
btrfs_search_slot+0x1933/0x3de0 fs/btrfs/ctree.c:1768
update_dev_stat_item fs/btrfs/volumes.c:7715 [inline]
btrfs_run_dev_stats+0x449/0x1350 fs/btrfs/volumes.c:7792
commit_cowonly_roots+0x2ef/0x14c0 fs/btrfs/transaction.c:1249
btrfs_commit_transaction+0x1d8a/0x4b10 fs/btrfs/transaction.c:2288
btrfs_commit_super+0x1b7/0x1f0 fs/btrfs/disk-io.c:4303
close_ctree+0x4e4/0xfbd fs/btrfs/disk-io.c:4370
btrfs_put_super+0x53/0x70 fs/btrfs/super.c:340
generic_shutdown_super+0x2bb/0x660 fs/super.c:465
kill_anon_super+0x63/0xb0 fs/super.c:1057
btrfs_kill_super+0x61/0x90 fs/btrfs/super.c:2348
deactivate_locked_super+0x10d/0x1e0 fs/super.c:335
deactivate_super+0x19e/0x1a0 fs/super.c:366
cleanup_mnt+0x797/0x870 fs/namespace.c:1137
__cleanup_mnt+0x3b/0x50 fs/namespace.c:1144
task_work_run+0x1f0/0x2c0 kernel/task_work.c:164
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop+0x3fc/0x490 kernel/entry/common.c:176
exit_to_user_mode_prepare kernel/entry/common.c:208 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline]
syscall_exit_to_user_mode+0x80/0xc0 kernel/entry/common.c:302
__do_fast_syscall_32+0xa5/0xf0 arch/x86/entry/common.c:183
do_fast_syscall_32+0x34/0x70 arch/x86/entry/common.c:205
do_SYSENTER_32+0x1b/0x20 arch/x86/entry/common.c:248
entry_SYSENTER_compat_after_hwframe+0x4d/0x5c
=====================================================
=====================================================
BUG: KMSAN: uninit-value in update_dev_stat_item fs/btrfs/volumes.c:7723 [inline]
BUG: KMSAN: uninit-value in btrfs_run_dev_stats+0xa6d/0x1350 fs/btrfs/volumes.c:7792
update_dev_stat_item fs/btrfs/volumes.c:7723 [inline]
btrfs_run_dev_stats+0xa6d/0x1350 fs/btrfs/volumes.c:7792
commit_cowonly_roots+0x2ef/0x14c0 fs/btrfs/transaction.c:1249
btrfs_commit_transaction+0x1d8a/0x4b10 fs/btrfs/transaction.c:2288
btrfs_commit_super+0x1b7/0x1f0 fs/btrfs/disk-io.c:4303
close_ctree+0x4e4/0xfbd fs/btrfs/disk-io.c:4370
btrfs_put_super+0x53/0x70 fs/btrfs/super.c:340
generic_shutdown_super+0x2bb/0x660 fs/super.c:465
kill_anon_super+0x63/0xb0 fs/super.c:1057
btrfs_kill_super+0x61/0x90 fs/btrfs/super.c:2348
deactivate_locked_super+0x10d/0x1e0 fs/super.c:335
deactivate_super+0x19e/0x1a0 fs/super.c:366
cleanup_mnt+0x797/0x870 fs/namespace.c:1137
__cleanup_mnt+0x3b/0x50 fs/namespace.c:1144
task_work_run+0x1f0/0x2c0 kernel/task_work.c:164
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop+0x3fc/0x490 kernel/entry/common.c:176
exit_to_user_mode_prepare kernel/entry/common.c:208 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline]
syscall_exit_to_user_mode+0x80/0xc0 kernel/entry/common.c:302
__do_fast_syscall_32+0xa5/0xf0 arch/x86/entry/common.c:183
do_fast_syscall_32+0x34/0x70 arch/x86/entry/common.c:205
do_SYSENTER_32+0x1b/0x20 arch/x86/entry/common.c:248
entry_SYSENTER_compat_after_hwframe+0x4d/0x5c
Uninit was created at:
__alloc_pages+0x8b3/0xfb0 mm/page_alloc.c:5422
alloc_pages+0xa39/0xde0 mm/mempolicy.c:2191
__page_cache_alloc mm/filemap.c:1022 [inline]
pagecache_get_page+0x1384/0x1ec0 mm/filemap.c:1940
find_or_create_page include/linux/pagemap.h:420 [inline]
alloc_extent_buffer+0x8c5/0x3420 fs/btrfs/extent_io.c:6124
btrfs_find_create_tree_block+0xb2/0xd0 fs/btrfs/disk-io.c:1090
btrfs_init_new_buffer fs/btrfs/extent-tree.c:4717 [inline]
btrfs_alloc_tree_block+0x507/0x20c0 fs/btrfs/extent-tree.c:4818
__btrfs_cow_block+0x823/0x2490 fs/btrfs/ctree.c:415
btrfs_cow_block+0xa4a/0xc80 fs/btrfs/ctree.c:570
btrfs_search_slot+0x1933/0x3de0 fs/btrfs/ctree.c:1768
update_dev_stat_item fs/btrfs/volumes.c:7715 [inline]
btrfs_run_dev_stats+0x449/0x1350 fs/btrfs/volumes.c:7792
commit_cowonly_roots+0x2ef/0x14c0 fs/btrfs/transaction.c:1249
btrfs_commit_transaction+0x1d8a/0x4b10 fs/btrfs/transaction.c:2288
btrfs_commit_super+0x1b7/0x1f0 fs/btrfs/disk-io.c:4303
close_ctree+0x4e4/0xfbd fs/btrfs/disk-io.c:4370
btrfs_put_super+0x53/0x70 fs/btrfs/super.c:340
generic_shutdown_super+0x2bb/0x660 fs/super.c:465
kill_anon_super+0x63/0xb0 fs/super.c:1057
btrfs_kill_super+0x61/0x90 fs/btrfs/super.c:2348
deactivate_locked_super+0x10d/0x1e0 fs/super.c:335
deactivate_super+0x19e/0x1a0 fs/super.c:366
cleanup_mnt+0x797/0x870 fs/namespace.c:1137
__cleanup_mnt+0x3b/0x50 fs/namespace.c:1144
task_work_run+0x1f0/0x2c0 kernel/task_work.c:164
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop+0x3fc/0x490 kernel/entry/common.c:176
exit_to_user_mode_prepare kernel/entry/common.c:208 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline]
syscall_exit_to_user_mode+0x80/0xc0 kernel/entry/common.c:302
__do_fast_syscall_32+0xa5/0xf0 arch/x86/entry/common.c:183
do_fast_syscall_32+0x34/0x70 arch/x86/entry/common.c:205
do_SYSENTER_32+0x1b/0x20 arch/x86/entry/common.c:248
entry_SYSENTER_compat_after_hwframe+0x4d/0x5c
=====================================================
=====================================================
BUG: KMSAN: uninit-value in check_eb_range fs/btrfs/extent_io.c:6663 [inline]
BUG: KMSAN: uninit-value in write_extent_buffer+0x54b/0xf20 fs/btrfs/extent_io.c:6824
check_eb_range fs/btrfs/extent_io.c:6663 [inline]
write_extent_buffer+0x54b/0xf20 fs/btrfs/extent_io.c:6824
btrfs_set_dev_stats_value fs/btrfs/volumes.c:7615 [inline]
update_dev_stat_item fs/btrfs/volumes.c:7752 [inline]
btrfs_run_dev_stats+0xbfe/0x1350 fs/btrfs/volumes.c:7792
commit_cowonly_roots+0x2ef/0x14c0 fs/btrfs/transaction.c:1249
btrfs_commit_transaction+0x1d8a/0x4b10 fs/btrfs/transaction.c:2288
btrfs_commit_super+0x1b7/0x1f0 fs/btrfs/disk-io.c:4303
close_ctree+0x4e4/0xfbd fs/btrfs/disk-io.c:4370
btrfs_put_super+0x53/0x70 fs/btrfs/super.c:340
generic_shutdown_super+0x2bb/0x660 fs/super.c:465
kill_anon_super+0x63/0xb0 fs/super.c:1057
btrfs_kill_super+0x61/0x90 fs/btrfs/super.c:2348
deactivate_locked_super+0x10d/0x1e0 fs/super.c:335
deactivate_super+0x19e/0x1a0 fs/super.c:366
cleanup_mnt+0x797/0x870 fs/namespace.c:1137
__cleanup_mnt+0x3b/0x50 fs/namespace.c:1144
task_work_run+0x1f0/0x2c0 kernel/task_work.c:164
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop+0x3fc/0x490 kernel/entry/common.c:176
exit_to_user_mode_prepare kernel/entry/common.c:208 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline]
syscall_exit_to_user_mode+0x80/0xc0 kernel/entry/common.c:302
__do_fast_syscall_32+0xa5/0xf0 arch/x86/entry/common.c:183
do_fast_syscall_32+0x34/0x70 arch/x86/entry/common.c:205
do_SYSENTER_32+0x1b/0x20 arch/x86/entry/common.c:248
entry_SYSENTER_compat_after_hwframe+0x4d/0x5c
Uninit was created at:
__alloc_pages+0x8b3/0xfb0 mm/page_alloc.c:5422
alloc_pages+0xa39/0xde0 mm/mempolicy.c:2191
__page_cache_alloc mm/filemap.c:1022 [inline]
pagecache_get_page+0x1384/0x1ec0 mm/filemap.c:1940
find_or_create_page include/linux/pagemap.h:420 [inline]
alloc_extent_buffer+0x8c5/0x3420 fs/btrfs/extent_io.c:6124
btrfs_find_create_tree_block+0xb2/0xd0 fs/btrfs/disk-io.c:1090
btrfs_init_new_buffer fs/btrfs/extent-tree.c:4717 [inline]
btrfs_alloc_tree_block+0x507/0x20c0 fs/btrfs/extent-tree.c:4818
__btrfs_cow_block+0x823/0x2490 fs/btrfs/ctree.c:415
btrfs_cow_block+0xa4a/0xc80 fs/btrfs/ctree.c:570
btrfs_search_slot+0x1933/0x3de0 fs/btrfs/ctree.c:1768
update_dev_stat_item fs/btrfs/volumes.c:7715 [inline]
btrfs_run_dev_stats+0x449/0x1350 fs/btrfs/volumes.c:7792
commit_cowonly_roots+0x2ef/0x14c0 fs/btrfs/transaction.c:1249
btrfs_commit_transaction+0x1d8a/0x4b10 fs/btrfs/transaction.c:2288
btrfs_commit_super+0x1b7/0x1f0 fs/btrfs/disk-io.c:4303
close_ctree+0x4e4/0xfbd fs/btrfs/disk-io.c:4370
btrfs_put_super+0x53/0x70 fs/btrfs/super.c:340
generic_shutdown_super+0x2bb/0x660 fs/super.c:465
kill_anon_super+0x63/0xb0 fs/super.c:1057
btrfs_kill_super+0x61/0x90 fs/btrfs/super.c:2348
deactivate_locked_super+0x10d/0x1e0 fs/super.c:335
deactivate_super+0x19e/0x1a0 fs/super.c:366
cleanup_mnt+0x797/0x870 fs/namespace.c:1137
__cleanup_mnt+0x3b/0x50 fs/namespace.c:1144
task_work_run+0x1f0/0x2c0 kernel/task_work.c:164
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop+0x3fc/0x490 kernel/entry/common.c:176
exit_to_user_mode_prepare kernel/entry/common.c:208 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline]
syscall_exit_to_user_mode+0x80/0xc0 kernel/entry/common.c:302
__do_fast_syscall_32+0xa5/0xf0 arch/x86/entry/common.c:183
do_fast_syscall_32+0x34/0x70 arch/x86/entry/common.c:205
do_SYSENTER_32+0x1b/0x20 arch/x86/entry/common.c:248
entry_SYSENTER_compat_after_hwframe+0x4d/0x5c
=====================================================
=====================================================
BUG: KMSAN: uninit-value in write_extent_buffer+0x5a8/0xf20 fs/btrfs/extent_io.c:6830
write_extent_buffer+0x5a8/0xf20 fs/btrfs/extent_io.c:6830
btrfs_set_dev_stats_value fs/btrfs/volumes.c:7615 [inline]
update_dev_stat_item fs/btrfs/volumes.c:7752 [inline]
btrfs_run_dev_stats+0xbfe/0x1350 fs/btrfs/volumes.c:7792
commit_cowonly_roots+0x2ef/0x14c0 fs/btrfs/transaction.c:1249
btrfs_commit_transaction+0x1d8a/0x4b10 fs/btrfs/transaction.c:2288
btrfs_commit_super+0x1b7/0x1f0 fs/btrfs/disk-io.c:4303
close_ctree+0x4e4/0xfbd fs/btrfs/disk-io.c:4370
btrfs_put_super+0x53/0x70 fs/btrfs/super.c:340
generic_shutdown_super+0x2bb/0x660 fs/super.c:465
kill_anon_super+0x63/0xb0 fs/super.c:1057
btrfs_kill_super+0x61/0x90 fs/btrfs/super.c:2348
deactivate_locked_super+0x10d/0x1e0 fs/super.c:335
deactivate_super+0x19e/0x1a0 fs/super.c:366
cleanup_mnt+0x797/0x870 fs/namespace.c:1137
__cleanup_mnt+0x3b/0x50 fs/namespace.c:1144
task_work_run+0x1f0/0x2c0 kernel/task_work.c:164
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop+0x3fc/0x490 kernel/entry/common.c:176
exit_to_user_mode_prepare kernel/entry/common.c:208 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline]
syscall_exit_to_user_mode+0x80/0xc0 kernel/entry/common.c:302
__do_fast_syscall_32+0xa5/0xf0 arch/x86/entry/common.c:183
do_fast_syscall_32+0x34/0x70 arch/x86/entry/common.c:205
do_SYSENTER_32+0x1b/0x20 arch/x86/entry/common.c:248
entry_SYSENTER_compat_after_hwframe+0x4d/0x5c
Uninit was created at:
__alloc_pages+0x8b3/0xfb0 mm/page_alloc.c:5422
alloc_pages+0xa39/0xde0 mm/mempolicy.c:2191
__page_cache_alloc mm/filemap.c:1022 [inline]
pagecache_get_page+0x1384/0x1ec0 mm/filemap.c:1940
find_or_create_page include/linux/pagemap.h:420 [inline]
alloc_extent_buffer+0x8c5/0x3420 fs/btrfs/extent_io.c:6124
btrfs_find_create_tree_block+0xb2/0xd0 fs/btrfs/disk-io.c:1090
btrfs_init_new_buffer fs/btrfs/extent-tree.c:4717 [inline]
btrfs_alloc_tree_block+0x507/0x20c0 fs/btrfs/extent-tree.c:4818
__btrfs_cow_block+0x823/0x2490 fs/btrfs/ctree.c:415
btrfs_cow_block+0xa4a/0xc80 fs/btrfs/ctree.c:570
btrfs_search_slot+0x1933/0x3de0 fs/btrfs/ctree.c:1768
update_dev_stat_item fs/btrfs/volumes.c:7715 [inline]
btrfs_run_dev_stats+0x449/0x1350 fs/btrfs/volumes.c:7792
commit_cowonly_roots+0x2ef/0x14c0 fs/btrfs/transaction.c:1249
btrfs_commit_transaction+0x1d8a/0x4b10 fs/btrfs/transaction.c:2288
btrfs_commit_super+0x1b7/0x1f0 fs/btrfs/disk-io.c:4303
close_ctree+0x4e4/0xfbd fs/btrfs/disk-io.c:4370
btrfs_put_super+0x53/0x70 fs/btrfs/super.c:340
generic_shutdown_super+0x2bb/0x660 fs/super.c:465
kill_anon_super+0x63/0xb0 fs/super.c:1057
btrfs_kill_super+0x61/0x90 fs/btrfs/super.c:2348
deactivate_locked_super+0x10d/0x1e0 fs/super.c:335
deactivate_super+0x19e/0x1a0 fs/super.c:366
cleanup_mnt+0x797/0x870 fs/namespace.c:1137
__cleanup_mnt+0x3b/0x50 fs/namespace.c:1144
task_work_run+0x1f0/0x2c0 kernel/task_work.c:164
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop+0x3fc/0x490 kernel/entry/common.c:176
exit_to_user_mode_prepare kernel/entry/common.c:208 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline]
syscall_exit_to_user_mode+0x80/0xc0 kernel/entry/common.c:302
__do_fast_syscall_32+0xa5/0xf0 arch/x86/entry/common.c:183
do_fast_syscall_32+0x34/0x70 arch/x86/entry/common.c:205
do_SYSENTER_32+0x1b/0x20 arch/x86/entry/common.c:248
entry_SYSENTER_compat_after_hwframe+0x4d/0x5c
=====================================================
=====================================================
BUG: KMSAN: uninit-value in write_extent_buffer+0xece/0xf20 fs/btrfs/extent_io.c:6829
write_extent_buffer+0xece/0xf20 fs/btrfs/extent_io.c:6829
btrfs_set_dev_stats_value fs/btrfs/volumes.c:7615 [inline]
update_dev_stat_item fs/btrfs/volumes.c:7752 [inline]
btrfs_run_dev_stats+0xbfe/0x1350 fs/btrfs/volumes.c:7792
commit_cowonly_roots+0x2ef/0x14c0 fs/btrfs/transaction.c:1249
btrfs_commit_transaction+0x1d8a/0x4b10 fs/btrfs/transaction.c:2288
btrfs_commit_super+0x1b7/0x1f0 fs/btrfs/disk-io.c:4303
close_ctree+0x4e4/0xfbd fs/btrfs/disk-io.c:4370
btrfs_put_super+0x53/0x70 fs/btrfs/super.c:340
generic_shutdown_super+0x2bb/0x660 fs/super.c:465
kill_anon_super+0x63/0xb0 fs/super.c:1057
btrfs_kill_super+0x61/0x90 fs/btrfs/super.c:2348
deactivate_locked_super+0x10d/0x1e0 fs/super.c:335
deactivate_super+0x19e/0x1a0 fs/super.c:366
cleanup_mnt+0x797/0x870 fs/namespace.c:1137
__cleanup_mnt+0x3b/0x50 fs/namespace.c:1144
task_work_run+0x1f0/0x2c0 kernel/task_work.c:164
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop+0x3fc/0x490 kernel/entry/common.c:176
exit_to_user_mode_prepare kernel/entry/common.c:208 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline]
syscall_exit_to_user_mode+0x80/0xc0 kernel/entry/common.c:302
__do_fast_syscall_32+0xa5/0xf0 arch/x86/entry/common.c:183
do_fast_syscall_32+0x34/0x70 arch/x86/entry/common.c:205
do_SYSENTER_32+0x1b/0x20 arch/x86/entry/common.c:248
entry_SYSENTER_compat_after_hwframe+0x4d/0x5c
Uninit was created at:
__alloc_pages+0x8b3/0xfb0 mm/page_alloc.c:5422
alloc_pages+0xa39/0xde0 mm/mempolicy.c:2191
__page_cache_alloc mm/filemap.c:1022 [inline]
pagecache_get_page+0x1384/0x1ec0 mm/filemap.c:1940
find_or_create_page include/linux/pagemap.h:420 [inline]
alloc_extent_buffer+0x8c5/0x3420 fs/btrfs/extent_io.c:6124
btrfs_find_create_tree_block+0xb2/0xd0 fs/btrfs/disk-io.c:1090
btrfs_init_new_buffer fs/btrfs/extent-tree.c:4717 [inline]
btrfs_alloc_tree_block+0x507/0x20c0 fs/btrfs/extent-tree.c:4818
__btrfs_cow_block+0x823/0x2490 fs/btrfs/ctree.c:415
btrfs_cow_block+0xa4a/0xc80 fs/btrfs/ctree.c:570
btrfs_search_slot+0x1933/0x3de0 fs/btrfs/ctree.c:1768
update_dev_stat_item fs/btrfs/volumes.c:7715 [inline]
btrfs_run_dev_stats+0x449/0x1350 fs/btrfs/volumes.c:7792
commit_cowonly_roots+0x2ef/0x14c0 fs/btrfs/transaction.c:1249
btrfs_commit_transaction+0x1d8a/0x4b10 fs/btrfs/transaction.c:2288
btrfs_commit_super+0x1b7/0x1f0 fs/btrfs/disk-io.c:4303
close_ctree+0x4e4/0xfbd fs/btrfs/disk-io.c:4370
btrfs_put_super+0x53/0x70 fs/btrfs/super.c:340
generic_shutdown_super+0x2bb/0x660 fs/super.c:465
kill_anon_super+0x63/0xb0 fs/super.c:1057
btrfs_kill_super+0x61/0x90 fs/btrfs/super.c:2348
deactivate_locked_super+0x10d/0x1e0 fs/super.c:335
deactivate_super+0x19e/0x1a0 fs/super.c:366
cleanup_mnt+0x797/0x870 fs/namespace.c:1137
__cleanup_mnt+0x3b/0x50 fs/namespace.c:1144
task_work_run+0x1f0/0x2c0 kernel/task_work.c:164
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop+0x3fc/0x490 kernel/entry/common.c:176
exit_to_user_mode_prepare kernel/entry/common.c:208 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline]
syscall_exit_to_user_mode+0x80/0xc0 kernel/entry/common.c:302
__do_fast_syscall_32+0xa5/0xf0 arch/x86/entry/common.c:183
do_fast_syscall_32+0x34/0x70 arch/x86/entry/common.c:205
do_SYSENTER_32+0x1b/0x20 arch/x86/entry/common.c:248
entry_SYSENTER_compat_after_hwframe+0x4d/0x5c
=====================================================
=====================================================
BUG: KMSAN: uninit-value in check_eb_range fs/btrfs/extent_io.c:6663 [inline]
BUG: KMSAN: uninit-value in write_extent_buffer+0x54b/0xf20 fs/btrfs/extent_io.c:6824
check_eb_range fs/btrfs/extent_io.c:6663 [inline]
write_extent_buffer+0x54b/0xf20 fs/btrfs/extent_io.c:6824
btrfs_set_dev_stats_value fs/btrfs/volumes.c:7615 [inline]
update_dev_stat_item fs/btrfs/volumes.c:7752 [inline]
btrfs_run_dev_stats+0xcb1/0x1350 fs/btrfs/volumes.c:7792
commit_cowonly_roots+0x2ef/0x14c0 fs/btrfs/transaction.c:1249
btrfs_commit_transaction+0x1d8a/0x4b10 fs/btrfs/transaction.c:2288
btrfs_commit_super+0x1b7/0x1f0 fs/btrfs/disk-io.c:4303
close_ctree+0x4e4/0xfbd fs/btrfs/disk-io.c:4370
btrfs_put_super+0x53/0x70 fs/btrfs/super.c:340
generic_shutdown_super+0x2bb/0x660 fs/super.c:465
kill_anon_super+0x63/0xb0 fs/super.c:1057
btrfs_kill_super+0x61/0x90 fs/btrfs/super.c:2348
deactivate_locked_super+0x10d/0x1e0 fs/super.c:335
deactivate_super+0x19e/0x1a0 fs/super.c:366
cleanup_mnt+0x797/0x870 fs/namespace.c:1137
__cleanup_mnt+0x3b/0x50 fs/namespace.c:1144
task_work_run+0x1f0/0x2c0 kernel/task_work.c:164
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop+0x3fc/0x490 kernel/entry/common.c:176
exit_to_user_mode_prepare kernel/entry/common.c:208 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline]
syscall_exit_to_user_mode+0x80/0xc0 kernel/entry/common.c:302
__do_fast_syscall_32+0xa5/0xf0 arch/x86/entry/common.c:183
do_fast_syscall_32+0x34/0x70 arch/x86/entry/common.c:205
do_SYSENTER_32+0x1b/0x20 arch/x86/entry/common.c:248
entry_SYSENTER_compat_after_hwframe+0x4d/0x5c
Uninit was created at:
__alloc_pages+0x8b3/0xfb0 mm/page_alloc.c:5422
alloc_pages+0xa39/0xde0 mm/mempolicy.c:2191
__page_cache_alloc mm/filemap.c:1022 [inline]
pagecache_get_page+0x1384/0x1ec0 mm/filemap.c:1940
find_or_create_page include/linux/pagemap.h:420 [inline]
alloc_extent_buffer+0x8c5/0x3420 fs/btrfs/extent_io.c:6124
btrfs_find_create_tree_block+0xb2/0xd0 fs/btrfs/disk-io.c:1090
btrfs_init_new_buffer fs/btrfs/extent-tree.c:4717 [inline]
btrfs_alloc_tree_block+0x507/0x20c0 fs/btrfs/extent-tree.c:4818
__btrfs_cow_block+0x823/0x2490 fs/btrfs/ctree.c:415
btrfs_cow_block+0xa4a/0xc80 fs/btrfs/ctree.c:570
btrfs_search_slot+0x1933/0x3de0 fs/btrfs/ctree.c:1768
update_dev_stat_item fs/btrfs/volumes.c:7715 [inline]
btrfs_run_dev_stats+0x449/0x1350 fs/btrfs/volumes.c:7792
commit_cowonly_roots+0x2ef/0x14c0 fs/btrfs/transaction.c:1249
btrfs_commit_transaction+0x1d8a/0x4b10 fs/btrfs/transaction.c:2288
btrfs_commit_super+0x1b7/0x1f0 fs/btrfs/disk-io.c:4303
close_ctree+0x4e4/0xfbd fs/btrfs/disk-io.c:4370
btrfs_put_super+0x53/0x70 fs/btrfs/super.c:340
generic_shutdown_super+0x2bb/0x660 fs/super.c:465
kill_anon_super+0x63/0xb0 fs/super.c:1057
btrfs_kill_super+0x61/0x90 fs/btrfs/super.c:2348
deactivate_locked_super+0x10d/0x1e0 fs/super.c:335
deactivate_super+0x19e/0x1a0 fs/super.c:366
cleanup_mnt+0x797/0x870 fs/namespace.c:1137
__cleanup_mnt+0x3b/0x50 fs/namespace.c:1144
task_work_run+0x1f0/0x2c0 kernel/task_work.c:164
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop+0x3fc/0x490 kernel/entry/common.c:176
exit_to_user_mode_prepare kernel/entry/common.c:208 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline]
syscall_exit_to_user_mode+0x80/0xc0 kernel/entry/common.c:302
__do_fast_syscall_32+0xa5/0xf0 arch/x86/entry/common.c:183
do_fast_syscall_32+0x34/0x70 arch/x86/entry/common.c:205
do_SYSENTER_32+0x1b/0x20 arch/x86/entry/common.c:248
entry_SYSENTER_compat_after_hwframe+0x4d/0x5c
=====================================================
=====================================================
BUG: KMSAN: uninit-value in write_extent_buffer+0x5a8/0xf20 fs/btrfs/extent_io.c:6830
write_extent_buffer+0x5a8/0xf20 fs/btrfs/extent_io.c:6830
btrfs_set_dev_stats_value fs/btrfs/volumes.c:7615 [inline]
update_dev_stat_item fs/btrfs/volumes.c:7752 [inline]
btrfs_run_dev_stats+0xcb1/0x1350 fs/btrfs/volumes.c:7792
commit_cowonly_roots+0x2ef/0x14c0 fs/btrfs/transaction.c:1249
btrfs_commit_transaction+0x1d8a/0x4b10 fs/btrfs/transaction.c:2288
btrfs_commit_super+0x1b7/0x1f0 fs/btrfs/disk-io.c:4303
close_ctree+0x4e4/0xfbd fs/btrfs/disk-io.c:4370
btrfs_put_super+0x53/0x70 fs/btrfs/super.c:340
generic_shutdown_super+0x2bb/0x660 fs/super.c:465
kill_anon_super+0x63/0xb0 fs/super.c:1057
btrfs_kill_super+0x61/0x90 fs/btrfs/super.c:2348
deactivate_locked_super+0x10d/0x1e0 fs/super.c:335
deactivate_super+0x19e/0x1a0 fs/super.c:366
cleanup_mnt+0x797/0x870 fs/namespace.c:1137
__cleanup_mnt+0x3b/0x50 fs/namespace.c:1144
task_work_run+0x1f0/0x2c0 kernel/task_work.c:164
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop+0x3fc/0x490 kernel/entry/common.c:176
exit_to_user_mode_prepare kernel/entry/common.c:208 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline]
syscall_exit_to_user_mode+0x80/0xc0 kernel/entry/common.c:302
__do_fast_syscall_32+0xa5/0xf0 arch/x86/entry/common.c:183
do_fast_syscall_32+0x34/0x70 arch/x86/entry/common.c:205
do_SYSENTER_32+0x1b/0x20 arch/x86/entry/common.c:248
entry_SYSENTER_compat_after_hwframe+0x4d/0x5c
Uninit was created at:
__alloc_pages+0x8b3/0xfb0 mm/page_alloc.c:5422
alloc_pages+0xa39/0xde0 mm/mempolicy.c:2191
__page_cache_alloc mm/filemap.c:1022 [inline]
pagecache_get_page+0x1384/0x1ec0 mm/filemap.c:1940
find_or_create_page include/linux/pagemap.h:420 [inline]
alloc_extent_buffer+0x8c5/0x3420 fs/btrfs/extent_io.c:6124
btrfs_find_create_tree_block+0xb2/0xd0 fs/btrfs/disk-io.c:1090
btrfs_init_new_buffer fs/btrfs/extent-tree.c:4717 [inline]
btrfs_alloc_tree_block+0x507/0x20c0 fs/btrfs/extent-tree.c:4818
__btrfs_cow_block+0x823/0x2490 fs/btrfs/ctree.c:415
btrfs_cow_block+0xa4a/0xc80 fs/btrfs/ctree.c:570
btrfs_search_slot+0x1933/0x3de0 fs/btrfs/ctree.c:1768
update_dev_stat_item fs/btrfs/volumes.c:7715 [inline]
btrfs_run_dev_stats+0x449/0x1350 fs/btrfs/volumes.c:7792
commit_cowonly_roots+0x2ef/0x14c0 fs/btrfs/transaction.c:1249
btrfs_commit_transaction+0x1d8a/0x4b10 fs/btrfs/transaction.c:2288
btrfs_commit_super+0x1b7/0x1f0 fs/btrfs/disk-io.c:4303
close_ctree+0x4e4/0xfbd fs/btrfs/disk-io.c:4370
btrfs_put_super+0x53/0x70 fs/btrfs/super.c:340
generic_shutdown_super+0x2bb/0x660 fs/super.c:465
kill_anon_super+0x63/0xb0 fs/super.c:1057
btrfs_kill_super+0x61/0x90 fs/btrfs/super.c:2348
deactivate_locked_super+0x10d/0x1e0 fs/super.c:335
deactivate_super+0x19e/0x1a0 fs/super.c:366
cleanup_mnt+0x797/0x870 fs/namespace.c:1137
__cleanup_mnt+0x3b/0x50 fs/namespace.c:1144
task_work_run+0x1f0/0x2c0 kernel/task_work.c:164
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop+0x3fc/0x490 kernel/entry/common.c:176
exit_to_user_mode_prepare kernel/entry/common.c:208 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline]
syscall_exit_to_user_mode+0x80/0xc0 kernel/entry/common.c:302
__do_fast_syscall_32+0xa5/0xf0 arch/x86/entry/common.c:183
do_fast_syscall_32+0x34/0x70 arch/x86/entry/common.c:205
do_SYSENTER_32+0x1b/0x20 arch/x86/entry/common.c:248
entry_SYSENTER_compat_after_hwframe+0x4d/0x5c
=====================================================
=====================================================
BUG: KMSAN: uninit-value in write_extent_buffer+0xece/0xf20 fs/btrfs/extent_io.c:6829
write_extent_buffer+0xece/0xf20 fs/btrfs/extent_io.c:6829
btrfs_set_dev_stats_value fs/btrfs/volumes.c:7615 [inline]
update_dev_stat_item fs/btrfs/volumes.c:7752 [inline]
btrfs_run_dev_stats+0xcb1/0x1350 fs/btrfs/volumes.c:7792
commit_cowonly_roots+0x2ef/0x14c0 fs/btrfs/transaction.c:1249
btrfs_commit_transaction+0x1d8a/0x4b10 fs/btrfs/transaction.c:2288
btrfs_commit_super+0x1b7/0x1f0 fs/btrfs/disk-io.c:4303
close_ctree+0x4e4/0xfbd fs/btrfs/disk-io.c:4370
btrfs_put_super+0x53/0x70 fs/btrfs/super.c:340
generic_shutdown_super+0x2bb/0x660 fs/super.c:465
kill_anon_super+0x63/0xb0 fs/super.c:1057
btrfs_kill_super+0x61/0x90 fs/btrfs/super.c:2348
deactivate_locked_super+0x10d/0x1e0 fs/super.c:335
deactivate_super+0x19e/0x1a0 fs/super.c:366
cleanup_mnt+0x797/0x870 fs/namespace.c:1137
__cleanup_mnt+0x3b/0x50 fs/namespace.c:1144
task_work_run+0x1f0/0x2c0 kernel/task_work.c:164
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop+0x3fc/0x490 kernel/entry/common.c:176
exit_to_user_mode_prepare kernel/entry/common.c:208 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline]
syscall_exit_to_user_mode+0x80/0xc0 kernel/entry/common.c:302
__do_fast_syscall_32+0xa5/0xf0 arch/x86/entry/common.c:183
do_fast_syscall_32+0x34/0x70 arch/x86/entry/common.c:205
do_SYSENTER_32+0x1b/0x20 arch/x86/entry/common.c:248
entry_SYSENTER_compat_after_hwframe+0x4d/0x5c
Uninit was created at:
__alloc_pages+0x8b3/0xfb0 mm/page_alloc.c:5422
alloc_pages+0xa39/0xde0 mm/mempolicy.c:2191
__page_cache_alloc mm/filemap.c:1022 [inline]
pagecache_get_page+0x1384/0x1ec0 mm/filemap.c:1940
find_or_create_page include/linux/pagemap.h:420 [inline]
alloc_extent_buffer+0x8c5/0x3420 fs/btrfs/extent_io.c:6124
btrfs_find_create_tree_block+0xb2/0xd0 fs/btrfs/disk-io.c:1090
btrfs_init_new_buffer fs/btrfs/extent-tree.c:4717 [inline]
btrfs_alloc_tree_block+0x507/0x20c0 fs/btrfs/extent-tree.c:4818
__btrfs_cow_block+0x823/0x2490 fs/btrfs/ctree.c:415
btrfs_cow_block+0xa4a/0xc80 fs/btrfs/ctree.c:570
btrfs_search_slot+0x1933/0x3de0 fs/btrfs/ctree.c:1768
update_dev_stat_item fs/btrfs/volumes.c:7715 [inline]
btrfs_run_dev_stats+0x449/0x1350 fs/btrfs/volumes.c:7792
commit_cowonly_roots+0x2ef/0x14c0 fs/btrfs/transaction.c:1249
btrfs_commit_transaction+0x1d8a/0x4b10 fs/btrfs/transaction.c:2288
btrfs_commit_super+0x1b7/0x1f0 fs/btrfs/disk-io.c:4303
close_ctree+0x4e4/0xfbd fs/btrfs/disk-io.c:4370
btrfs_put_super+0x53/0x70 fs/btrfs/super.c:340
generic_shutdown_super+0x2bb/0x660 fs/super.c:465
kill_anon_super+0x63/0xb0 fs/super.c:1057
btrfs_kill_super+0x61/0x90 fs/btrfs/super.c:2348
deactivate_locked_super+0x10d/0x1e0 fs/super.c:335
deactivate_super+0x19e/0x1a0 fs/super.c:366
cleanup_mnt+0x797/0x870 fs/namespace.c:1137
__cleanup_mnt+0x3b/0x50 fs/namespace.c:1144
task_work_run+0x1f0/0x2c0 kernel/task_work.c:164
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop+0x3fc/0x490 kernel/entry/common.c:176
exit_to_user_mode_prepare kernel/entry/common.c:208 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline]
syscall_exit_to_user_mode+0x80/0xc0 kernel/entry/common.c:302
__do_fast_syscall_32+0xa5/0xf0 arch/x86/entry/common.c:183
do_fast_syscall_32+0x34/0x70 arch/x86/entry/common.c:205
do_SYSENTER_32+0x1b/0x20 arch/x86/entry/common.c:248
entry_SYSENTER_compat_after_hwframe+0x4d/0x5c
=====================================================
=====================================================
BUG: KMSAN: uninit-value in check_eb_range fs/btrfs/extent_io.c:6663 [inline]
BUG: KMSAN: uninit-value in write_extent_buffer+0x54b/0xf20 fs/btrfs/extent_io.c:6824
check_eb_range fs/btrfs/extent_io.c:6663 [inline]
write_extent_buffer+0x54b/0xf20 fs/btrfs/extent_io.c:6824
btrfs_set_dev_stats_value fs/btrfs/volumes.c:7615 [inline]
update_dev_stat_item fs/btrfs/volumes.c:7752 [inline]
btrfs_run_dev_stats+0xd61/0x1350 fs/btrfs/volumes.c:7792
commit_cowonly_roots+0x2ef/0x14c0 fs/btrfs/transaction.c:1249
btrfs_commit_transaction+0x1d8a/0x4b10 fs/btrfs/transaction.c:2288
btrfs_commit_super+0x1b7/0x1f0 fs/btrfs/disk-io.c:4303
close_ctree+0x4e4/0xfbd fs/btrfs/disk-io.c:4370
btrfs_put_super+0x53/0x70 fs/btrfs/super.c:340
generic_shutdown_super+0x2bb/0x660 fs/super.c:465
kill_anon_super+0x63/0xb0 fs/super.c:1057
btrfs_kill_super+0x61/0x90 fs/btrfs/super.c:2348
deactivate_locked_super+0x10d/0x1e0 fs/super.c:335
deactivate_super+0x19e/0x1a0 fs/super.c:366
cleanup_mnt+0x797/0x870 fs/namespace.c:1137
__cleanup_mnt+0x3b/0x50 fs/namespace.c:1144
task_work_run+0x1f0/0x2c0 kernel/task_work.c:164
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop+0x3fc/0x490 kernel/entry/common.c:176
exit_to_user_mode_prepare kernel/entry/common.c:208 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline]
syscall_exit_to_user_mode+0x80/0xc0 kernel/entry/common.c:302
__do_fast_syscall_32+0xa5/0xf0 arch/x86/entry/common.c:183
do_fast_syscall_32+0x34/0x70 arch/x86/entry/common.c:205
do_SYSENTER_32+0x1b/0x20 arch/x86/entry/common.c:248
entry_SYSENTER_compat_after_hwframe+0x4d/0x5c
Uninit was created at:
__alloc_pages+0x8b3/0xfb0 mm/page_alloc.c:5422
alloc_pages+0xa39/0xde0 mm/mempolicy.c:2191
__page_cache_alloc mm/filemap.c:1022 [inline]
pagecache_get_page+0x1384/0x1ec0 mm/filemap.c:1940
find_or_create_page include/linux/pagemap.h:420 [inline]
alloc_extent_buffer+0x8c5/0x3420 fs/btrfs/extent_io.c:6124
btrfs_find_create_tree_block+0xb2/0xd0 fs/btrfs/disk-io.c:1090
btrfs_init_new_buffer fs/btrfs/extent-tree.c:4717 [inline]
btrfs_alloc_tree_block+0x507/0x20c0 fs/btrfs/extent-tree.c:4818
__btrfs_cow_block+0x823/0x2490 fs/btrfs/ctree.c:415
btrfs_cow_block+0xa4a/0xc80 fs/btrfs/ctree.c:570
btrfs_search_slot+0x1933/0x3de0 fs/btrfs/ctree.c:1768
update_dev_stat_item fs/btrfs/volumes.c:7715 [inline]
btrfs_run_dev_stats+0x449/0x1350 fs/btrfs/volumes.c:7792
commit_cowonly_roots+0x2ef/0x14c0 fs/btrfs/transaction.c:1249
btrfs_commit_transaction+0x1d8a/0x4b10 fs/btrfs/transaction.c:2288
btrfs_commit_super+0x1b7/0x1f0 fs/btrfs/disk-io.c:4303
close_ctree+0x4e4/0xfbd fs/btrfs/disk-io.c:4370
btrfs_put_super+0x53/0x70 fs/btrfs/super.c:340
generic_shutdown_super+0x2bb/0x660 fs/super.c:465
kill_anon_super+0x63/0xb0 fs/super.c:1057
btrfs_kill_super+0x61/0x90 fs/btrfs/super.c:2348
deactivate_locked_super+0x10d/0x1e0 fs/super.c:335
deactivate_super+0x19e/0x1a0 fs/super.c:366
cleanup_mnt+0x797/0x870 fs/namespace.c:1137
__cleanup_mnt+0x3b/0x50 fs/namespace.c:1144
task_work_run+0x1f0/0x2c0 kernel/task_work.c:164
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop+0x3fc/0x490 kernel/entry/common.c:176
exit_to_user_mode_prepare kernel/entry/common.c:208 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline]
syscall_exit_to_user_mode+0x80/0xc0 kernel/entry/common.c:302
__do_fast_syscall_32+0xa5/0xf0 arch/x86/entry/common.c:183
do_fast_syscall_32+0x34/0x70 arch/x86/entry/common.c:205
do_SYSENTER_32+0x1b/0x20 arch/x86/entry/common.c:248
entry_SYSENTER_compat_after_hwframe+0x4d/0x5c
=====================================================
=====================================================
BUG: KMSAN: uninit-value in write_extent_buffer+0x5a8/0xf20 fs/btrfs/extent_io.c:6830
write_extent_buffer+0x5a8/0xf20 fs/btrfs/extent_io.c:6830
btrfs_set_dev_stats_value fs/btrfs/volumes.c:7615 [inline]
update_dev_stat_item fs/btrfs/volumes.c:7752 [inline]
btrfs_run_dev_stats+0xd61/0x1350 fs/btrfs/volumes.c:7792
commit_cowonly_roots+0x2ef/0x14c0 fs/btrfs/transaction.c:1249
btrfs_commit_transaction+0x1d8a/0x4b10 fs/btrfs/transaction.c:2288
btrfs_commit_super+0x1b7/0x1f0 fs/btrfs/disk-io.c:4303
close_ctree+0x4e4/0xfbd fs/btrfs/disk-io.c:4370
btrfs_put_super+0x53/0x70 fs/btrfs/super.c:340
generic_shutdown_super+0x2bb/0x660 fs/super.c:465
kill_anon_super+0x63/0xb0 fs/super.c:1057
btrfs_kill_super+0x61/0x90 fs/btrfs/super.c:2348
deactivate_locked_super+0x10d/0x1e0 fs/super.c:335
deactivate_super+0x19e/0x1a0 fs/super.c:366
cleanup_mnt+0x797/0x870 fs/namespace.c:1137
__cleanup_mnt+0x3b/0x50 fs/namespace.c:1144
task_work_run+0x1f0/0x2c0 kernel/task_work.c:164
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop+0x3fc/0x490 kernel/entry/common.c:176
exit_to_user_mode_prepare kernel/entry/common.c:208 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline]
syscall_exit_to_user_mode+0x80/0xc0 kernel/entry/common.c:302
__do_fast_syscall_32+0xa5/0xf0 arch/x86/entry/common.c:183
do_fast_syscall_32+0x34/0x70 arch/x86/entry/common.c:205
do_SYSENTER_32+0x1b/0x20 arch/x86/entry/common.c:248
entry_SYSENTER_compat_after_hwframe+0x4d/0x5c
Uninit was created at:
__alloc_pages+0x8b3/0xfb0 mm/page_alloc.c:5422
alloc_pages+0xa39/0xde0 mm/mempolicy.c:2191
__page_cache_alloc mm/filemap.c:1022 [inline]
pagecache_get_page+0x1384/0x1ec0 mm/filemap.c:1940
find_or_create_page include/linux/pagemap.h:420 [inline]
alloc_extent_buffer+0x8c5/0x3420 fs/btrfs/extent_io.c:6124
btrfs_find_create_tree_block+0xb2/0xd0 fs/btrfs/disk-io.c:1090
btrfs_init_new_buffer fs/btrfs/extent-tree.c:4717 [inline]
btrfs_alloc_tree_block+0x507/0x20c0 fs/btrfs/extent-tree.c:4818
__btrfs_cow_block+0x823/0x2490 fs/btrfs/ctree.c:415
btrfs_cow_block+0xa4a/0xc80 fs/btrfs/ctree.c:570
btrfs_search_slot+0x1933/0x3de0 fs/btrfs/ctree.c:1768
update_dev_stat_item fs/btrfs/volumes.c:7715 [inline]
btrfs_run_dev_stats+0x449/0x1350 fs/btrfs/volumes.c:7792
commit_cowonly_roots+0x2ef/0x14c0 fs/btrfs/transaction.c:1249
btrfs_commit_transaction+0x1d8a/0x4b10 fs/btrfs/transaction.c:2288
btrfs_commit_super+0x1b7/0x1f0 fs/btrfs/disk-io.c:4303
close_ctree+0x4e4/0xfbd fs/btrfs/disk-io.c:4370
btrfs_put_super+0x53/0x70 fs/btrfs/super.c:340
generic_shutdown_super+0x2bb/0x660 fs/super.c:465
kill_anon_super+0x63/0xb0 fs/super.c:1057
btrfs_kill_super+0x61/0x90 fs/btrfs/super.c:2348
deactivate_locked_super+0x10d/0x1e0 fs/super.c:335
deactivate_super+0x19e/0x1a0 fs/super.c:366
cleanup_mnt+0x797/0x870 fs/namespace.c:1137
__cleanup_mnt+0x3b/0x50 fs/namespace.c:1144
task_work_run+0x1f0/0x2c0 kernel/task_work.c:164
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop+0x3fc/0x490 kernel/entry/common.c:176
exit_to_user_mode_prepare kernel/entry/common.c:208 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline]
syscall_exit_to_user_mode+0x80/0xc0 kernel/entry/common.c:302
__do_fast_syscall_32+0xa5/0xf0 arch/x86/entry/common.c:183
do_fast_syscall_32+0x34/0x70 arch/x86/entry/common.c:205
do_SYSENTER_32+0x1b/0x20 arch/x86/entry/common.c:248
entry_SYSENTER_compat_after_hwframe+0x4d/0x5c
=====================================================
=====================================================
BUG: KMSAN: uninit-value in write_extent_buffer+0xece/0xf20 fs/btrfs/extent_io.c:6829
write_extent_buffer+0xece/0xf20 fs/btrfs/extent_io.c:6829
btrfs_set_dev_stats_value fs/btrfs/volumes.c:7615 [inline]
update_dev_stat_item fs/btrfs/volumes.c:7752 [inline]
btrfs_run_dev_stats+0xd61/0x1350 fs/btrfs/volumes.c:7792
commit_cowonly_roots+0x2ef/0x14c0 fs/btrfs/transaction.c:1249
btrfs_commit_transaction+0x1d8a/0x4b10 fs/btrfs/transaction.c:2288
btrfs_commit_super+0x1b7/0x1f0 fs/btrfs/disk-io.c:4303
close_ctree+0x4e4/0xfbd fs/btrfs/disk-io.c:4370
btrfs_put_super+0x53/0x70 fs/btrfs/super.c:340
generic_shutdown_super+0x2bb/0x660 fs/super.c:465
kill_anon_super+0x63/0xb0 fs/super.c:1057
btrfs_kill_super+0x61/0x90 fs/btrfs/super.c:2348
deactivate_locked_super+0x10d/0x1e0 fs/super.c:335
deactivate_super+0x19e/0x1a0 fs/super.c:366
cleanup_mnt+0x797/0x870 fs/namespace.c:1137
__cleanup_mnt+0x3b/0x50 fs/namespace.c:1144
task_work_run+0x1f0/0x2c0 kernel/task_work.c:164
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop+0x3fc/0x490 kernel/entry/common.c:176
exit_to_user_mode_prepare kernel/entry/common.c:208 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline]
syscall_exit_to_user_mode+0x80/0xc0 kernel/entry/common.c:302
__do_fast_syscall_32+0xa5/0xf0 arch/x86/entry/common.c:183
do_fast_syscall_32+0x34/0x70 arch/x86/entry/common.c:205
do_SYSENTER_32+0x1b/0x20 arch/x86/entry/common.c:248
entry_SYSENTER_compat_after_hwframe+0x4d/0x5c
Uninit was created at:
__alloc_pages+0x8b3/0xfb0 mm/page_alloc.c:5422
alloc_pages+0xa39/0xde0 mm/mempolicy.c:2191
__page_cache_alloc mm/filemap.c:1022 [inline]
pagecache_get_page+0x1384/0x1ec0 mm/filemap.c:1940
find_or_create_page include/linux/pagemap.h:420 [inline]
alloc_extent_buffer+0x8c5/0x3420 fs/btrfs/extent_io.c:6124
btrfs_find_create_tree_block+0xb2/0xd0 fs/btrfs/disk-io.c:1090
btrfs_init_new_buffer fs/btrfs/extent-tree.c:4717 [inline]
btrfs_alloc_tree_block+0x507/0x20c0 fs/btrfs/extent-tree.c:4818
__btrfs_cow_block+0x823/0x2490 fs/btrfs/ctree.c:415
btrfs_cow_block+0xa4a/0xc80 fs/btrfs/ctree.c:570
btrfs_search_slot+0x1933/0x3de0 fs/btrfs/ctree.c:1768
update_dev_stat_item fs/btrfs/volumes.c:7715 [inlin
---
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