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Date: Sun, 16 Oct 2022 19:15:40 -0700 From: syzbot <syzbot+ebdb2403435c4136db2b@...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] WARNING in btrfs_run_delayed_refs Hello, syzbot found the following issue on: HEAD commit: 493ffd6605b2 Merge tag 'ucount-rlimits-cleanups-for-v5.19'.. git tree: upstream console+strace: https://syzkaller.appspot.com/x/log.txt?x=1249e73a880000 kernel config: https://syzkaller.appspot.com/x/.config?x=d19f5d16783f901 dashboard link: https://syzkaller.appspot.com/bug?extid=ebdb2403435c4136db2b compiler: Debian clang version 13.0.1-++20220126092033+75e33f71c2da-1~exp1~20220126212112.63, GNU ld (GNU Binutils for Debian) 2.35.2 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=10f1fa2c880000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=119fcd62880000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/f1ff6481e26f/disk-493ffd66.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/101bd3c7ae47/vmlinux-493ffd66.xz mounted in repro: https://storage.googleapis.com/syzbot-assets/17b7c308ee18/mount_0.gz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+ebdb2403435c4136db2b@...kaller.appspotmail.com loop0: detected capacity change from 0 to 32768 BTRFS info (device loop0): using xxhash64 (xxhash64-generic) checksum algorithm BTRFS info (device loop0): using free space tree BTRFS info (device loop0): enabling ssd optimizations ------------[ cut here ]------------ BTRFS: Transaction aborted (error -12) WARNING: CPU: 0 PID: 3628 at fs/btrfs/extent-tree.c:2141 btrfs_run_delayed_refs+0x450/0x4a0 fs/btrfs/extent-tree.c:2141 Modules linked in: CPU: 0 PID: 3628 Comm: syz-executor264 Not tainted 6.0.0-syzkaller-09423-g493ffd6605b2 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 RIP: 0010:btrfs_run_delayed_refs+0x450/0x4a0 fs/btrfs/extent-tree.c:2141 Code: 48 8b 38 48 c7 c6 40 17 da 8a 89 ea 31 c0 e8 39 2a a8 06 eb 19 e8 f0 88 0a fe 48 c7 c7 40 16 da 8a 89 ee 31 c0 e8 50 ed d2 fd <0f> 0b b3 01 44 0f b6 c3 4c 89 e7 48 c7 c6 60 19 da 8a ba 5d 08 00 RSP: 0018:ffffc90003e1f970 EFLAGS: 00010246 RAX: e42d7aab60647100 RBX: ffff88807851c001 RCX: ffff888028165880 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: 00000000fffffff4 R08: ffffffff816aa79d R09: ffffed1017344f13 R10: ffffed1017344f13 R11: 1ffff11017344f12 R12: ffff88807005d1f8 R13: dffffc0000000000 R14: 0000000000000000 R15: ffff888075537000 FS: 0000555555605300(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fd693f62130 CR3: 000000001c70d000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> btrfs_commit_transaction+0x3a9/0x3760 fs/btrfs/transaction.c:2123 btrfs_ioctl_set_fslabel+0x2c4/0x340 fs/btrfs/ioctl.c:5025 btrfs_ioctl+0x9de/0xc10 fs/btrfs/ioctl.c:5435 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl+0xfb/0x170 fs/ioctl.c:856 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fd693ee9f49 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 c0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fffa2f7a7a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fd693ee9f49 RDX: 0000000020000980 RSI: 0000000041009432 RDI: 0000000000000004 RBP: 00007fffa2f7a7d0 R08: 0000000000000001 R09: 00007fffa2f7a7e0 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 R13: 00007fd693f326b8 R14: 00007fd693f32950 R15: 0000000000000002 </TASK> --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@...glegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. syzbot can test patches for this issue, for details see: https://goo.gl/tpsmEJ#testing-patches
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