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Message-ID: <6717b381.050a0220.1e4b4d.0076.GAE@google.com>
Date: Tue, 22 Oct 2024 07:15:29 -0700
From: syzbot <syzbot+9064acebb06685edb243@...kaller.appspotmail.com>
To: clm@...com, dsterba@...e.com, josef@...icpanda.com,
linux-btrfs@...r.kernel.org, linux-kernel@...r.kernel.org,
syzkaller-bugs@...glegroups.com
Subject: [syzbot] [btrfs?] WARNING in btrfs_free_reserved_data_space_noquota (3)
Hello,
syzbot found the following issue on:
HEAD commit: 4d939780b705 Merge tag 'mm-hotfixes-stable-2024-10-17-16-0..
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=15ca4c5f980000
kernel config: https://syzkaller.appspot.com/x/.config?x=cfbd94c114a3d407
dashboard link: https://syzkaller.appspot.com/bug?extid=9064acebb06685edb243
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/7feb34a89c2a/non_bootable_disk-4d939780.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/12c327c1ad70/vmlinux-4d939780.xz
kernel image: https://storage.googleapis.com/syzbot-assets/c7596a960357/bzImage-4d939780.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+9064acebb06685edb243@...kaller.appspotmail.com
loop0: detected capacity change from 0 to 262144
=======================================================
WARNING: The mand mount option has been deprecated and
and is ignored by this kernel. Remove the mand
option from the mount to silence this warning.
=======================================================
BTRFS: device fsid 7e32c2af-f87a-45a1-bcba-64dea7c56a53 devid 1 transid 8 /dev/loop0 (7:0) scanned by syz.0.0 (5106)
BTRFS info (device loop0): first mount of filesystem 7e32c2af-f87a-45a1-bcba-64dea7c56a53
BTRFS info (device loop0): using xxhash64 (xxhash64-generic) checksum algorithm
BTRFS info (device loop0): using free-space-tree
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 1
CPU: 0 UID: 0 PID: 5106 Comm: syz.0.0 Not tainted 6.12.0-rc3-syzkaller-00217-g4d939780b705 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
fail_dump lib/fault-inject.c:53 [inline]
should_fail_ex+0x3b0/0x4e0 lib/fault-inject.c:154
should_failslab+0xac/0x100 mm/failslab.c:46
slab_pre_alloc_hook mm/slub.c:4038 [inline]
slab_alloc_node mm/slub.c:4114 [inline]
kmem_cache_alloc_noprof+0x6c/0x2a0 mm/slub.c:4141
alloc_ordered_extent+0x13b/0x5d0 fs/btrfs/ordered-data.c:172
btrfs_alloc_ordered_extent+0x1e4/0xa70
btrfs_create_dio_extent+0x79/0x160 fs/btrfs/direct-io.c:153
btrfs_new_extent_direct fs/btrfs/direct-io.c:203 [inline]
btrfs_get_blocks_direct_write+0x972/0xfa0 fs/btrfs/direct-io.c:321
btrfs_dio_iomap_begin+0xbb7/0x1180 fs/btrfs/direct-io.c:525
iomap_iter+0x691/0xf60 fs/iomap/iter.c:91
__iomap_dio_rw+0xdea/0x2370 fs/iomap/direct-io.c:677
btrfs_dio_write fs/btrfs/direct-io.c:775 [inline]
btrfs_direct_write+0x61b/0xa70 fs/btrfs/direct-io.c:880
btrfs_do_write_iter+0x2a0/0x760 fs/btrfs/file.c:1505
aio_write+0x56b/0x7c0 fs/aio.c:1633
io_submit_one+0x8a7/0x18a0 fs/aio.c:2052
__do_sys_io_submit fs/aio.c:2111 [inline]
__se_sys_io_submit+0x179/0x2f0 fs/aio.c:2081
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f4756d7dff9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f4757b3f038 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1
RAX: ffffffffffffffda RBX: 00007f4756f35f80 RCX: 00007f4756d7dff9
RDX: 0000000020000540 RSI: 000000000000003b RDI: 00007f4757af5000
RBP: 00007f4757b3f090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 0000000000000000 R14: 00007f4756f35f80 R15: 00007ffc4b13df48
</TASK>
------------[ cut here ]------------
WARNING: CPU: 0 PID: 5106 at fs/btrfs/space-info.h:250 btrfs_space_info_update_bytes_may_use fs/btrfs/space-info.h:250 [inline]
WARNING: CPU: 0 PID: 5106 at fs/btrfs/space-info.h:250 btrfs_space_info_free_bytes_may_use fs/btrfs/space-info.h:283 [inline]
WARNING: CPU: 0 PID: 5106 at fs/btrfs/space-info.h:250 btrfs_free_reserved_data_space_noquota+0x287/0x4f0 fs/btrfs/delalloc-space.c:179
Modules linked in:
CPU: 0 UID: 0 PID: 5106 Comm: syz.0.0 Not tainted 6.12.0-rc3-syzkaller-00217-g4d939780b705 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:btrfs_space_info_update_bytes_may_use fs/btrfs/space-info.h:250 [inline]
RIP: 0010:btrfs_space_info_free_bytes_may_use fs/btrfs/space-info.h:283 [inline]
RIP: 0010:btrfs_free_reserved_data_space_noquota+0x287/0x4f0 fs/btrfs/delalloc-space.c:179
Code: 00 74 08 4c 89 e7 e8 68 e1 23 fe 4d 8b 2c 24 4c 89 ef 48 8b 5c 24 20 48 89 de e8 34 2e ba fd 49 39 dd 73 19 e8 ca 2b ba fd 90 <0f> 0b 90 31 db 4c 8b 6c 24 10 41 80 3c 2f 00 75 2b eb 31 e8 b1 2b
RSP: 0018:ffffc9000b2df200 EFLAGS: 00010293
RAX: ffffffff83dabc36 RBX: 0000000000004000 RCX: ffff88801cd1c880
RDX: 0000000000000000 RSI: 0000000000004000 RDI: 0000000000003000
RBP: dffffc0000000000 R08: ffffffff83dabc2c R09: 1ffffffff2039ff5
R10: dffffc0000000000 R11: fffffbfff2039ff6 R12: ffff888040b7a068
R13: 0000000000003000 R14: ffff88804c94c000 R15: 1ffff1100816f40d
FS: 00007f4757b3f6c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055d4b4513e88 CR3: 000000003e504000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
btrfs_free_reserved_data_space+0xa2/0xe0 fs/btrfs/delalloc-space.c:199
btrfs_dio_iomap_begin+0x7c6/0x1180 fs/btrfs/direct-io.c:598
iomap_iter+0x691/0xf60 fs/iomap/iter.c:91
__iomap_dio_rw+0xdea/0x2370 fs/iomap/direct-io.c:677
btrfs_dio_write fs/btrfs/direct-io.c:775 [inline]
btrfs_direct_write+0x61b/0xa70 fs/btrfs/direct-io.c:880
btrfs_do_write_iter+0x2a0/0x760 fs/btrfs/file.c:1505
aio_write+0x56b/0x7c0 fs/aio.c:1633
io_submit_one+0x8a7/0x18a0 fs/aio.c:2052
__do_sys_io_submit fs/aio.c:2111 [inline]
__se_sys_io_submit+0x179/0x2f0 fs/aio.c:2081
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f4756d7dff9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f4757b3f038 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1
RAX: ffffffffffffffda RBX: 00007f4756f35f80 RCX: 00007f4756d7dff9
RDX: 0000000020000540 RSI: 000000000000003b RDI: 00007f4757af5000
RBP: 00007f4757b3f090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 0000000000000000 R14: 00007f4756f35f80 R15: 00007ffc4b13df48
</TASK>
---
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