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WARNING in btrfs_chunk_alloc

Status: upstream: reported C repro on 2022/11/22 11:56
Subsystems: btrfs
[Documentation on labels]
Reported-by: syzbot+e8e56d5d31d38b5b47e7@syzkaller.appspotmail.com
First crash: 890d, last: 5d16h
Cause bisection: the issue happens on the oldest tested release (bisect log)
Crash: WARNING in btrfs_create_pending_block_groups (log)
Repro: C syz .config
  
Fix bisection: fixed by (bisect log) :
commit a1912f712188291f9d7d434fba155461f1ebef66
Author: Josef Bacik <josef@toxicpanda.com>
Date: Wed Nov 22 17:17:55 2023 +0000

  btrfs: remove code for inode_cache and recovery mount options

  
▶ ▼ Discussions (22)
Title Replies (including bot) Last reply
[syzbot] Monthly btrfs report (Apr 2025) 0 (1) 2025/04/23 07:50
[syzbot] Monthly btrfs report (Mar 2025) 0 (1) 2025/03/22 18:47
[syzbot] Monthly btrfs report (Feb 2025) 0 (1) 2025/02/19 12:35
[syzbot] Monthly btrfs report (Jan 2025) 0 (1) 2025/01/20 08:14
[syzbot] Monthly btrfs report (Dec 2024) 0 (1) 2024/12/19 18:39
[syzbot] Monthly btrfs report (Nov 2024) 0 (1) 2024/11/18 10:39
[syzbot] Monthly btrfs report (Oct 2024) 0 (1) 2024/10/17 07:41
[syzbot] Monthly btrfs report (Sep 2024) 0 (1) 2024/09/16 12:27
[syzbot] Monthly btrfs report (Aug 2024) 0 (1) 2024/08/16 09:47
[syzbot] Monthly btrfs report (Jul 2024) 0 (1) 2024/07/15 14:03
[syzbot] Monthly btrfs report (Jun 2024) 0 (1) 2024/06/14 08:14
[syzbot] WARNING in btrfs_chunk_alloc 2 (4) 2024/04/20 11:05
[syzbot] Monthly btrfs report (Feb 2024) 2 (3) 2024/02/12 12:15
[syzbot] Monthly btrfs report (Jan 2024) 0 (1) 2024/01/10 09:16
[syzbot] Monthly btrfs report (Dec 2023) 0 (1) 2023/12/06 10:05
[syzbot] Monthly btrfs report (Nov 2023) 0 (1) 2023/11/05 13:07
[syzbot] Monthly btrfs report (Aug 2023) 0 (1) 2023/08/30 09:53
[syzbot] Monthly btrfs report (Jul 2023) 0 (1) 2023/07/30 13:15
[syzbot] Monthly btrfs report (Jun 2023) 0 (1) 2023/06/29 10:14
[syzbot] Monthly btrfs report (May 2023) 0 (1) 2023/05/30 08:21
[syzbot] Monthly btrfs report (Apr 2023) 0 (1) 2023/04/27 10:13
[syzbot] [btrfs] Monthly Report 1 (2) 2023/03/27 13:42
▶ ▼ Similar bugs (4)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-5.15 WARNING in btrfs_chunk_alloc 6 686d 769d 0/3 auto-obsoleted due to no activity on 2023/09/22 15:34
linux-6.1 WARNING in btrfs_chunk_alloc (2) origin:lts-only C done 40 31d 532d 0/3 upstream: reported C repro on 2023/11/15 16:30
linux-6.1 WARNING in btrfs_chunk_alloc 1 764d 764d 0/3 auto-obsoleted due to no activity on 2023/07/26 13:54
linux-5.15 WARNING in btrfs_chunk_alloc (2) origin:upstream C error 43 25d 582d 0/3 upstream: reported C repro on 2023/09/25 19:35
▶ ▼ Last patch testing requests (10)
Created Duration User Patch Repo Result
2024/09/12 07:41 21m retest repro git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci report log
2024/08/10 18:45 1h04m retest repro upstream report log
2024/07/04 06:58 21m retest repro git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci report log
2024/07/04 04:47 23m retest repro upstream OK log
2024/05/26 14:54 16m retest repro upstream report log
2024/04/17 09:08 21m retest repro upstream error
2024/03/17 17:47 19m retest repro git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci report log
2024/03/17 13:43 20m retest repro upstream error
2024/03/17 13:43 18m retest repro upstream error
2024/01/26 17:45 39m retest repro upstream OK log

Sample crash report:
BTRFS: Transaction aborted (error -28)
WARNING: CPU: 1 PID: 82 at fs/btrfs/block-group.c:3972 do_chunk_alloc fs/btrfs/block-group.c:3972 [inline]
WARNING: CPU: 1 PID: 82 at fs/btrfs/block-group.c:3972 btrfs_chunk_alloc+0xf70/0x10d0 fs/btrfs/block-group.c:4214
Modules linked in:
CPU: 1 UID: 0 PID: 82 Comm: kworker/u8:5 Not tainted 6.14.0-syzkaller-13546-g16cd1c265776 #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Workqueue: events_unbound btrfs_async_reclaim_metadata_space
RIP: 0010:do_chunk_alloc fs/btrfs/block-group.c:3972 [inline]
RIP: 0010:btrfs_chunk_alloc+0xf70/0x10d0 fs/btrfs/block-group.c:4214
Code: 04 24 48 8b 38 48 c7 c6 a0 39 8f 8c 89 da e8 17 11 0f fd eb 19 e8 50 9c aa fd 90 48 c7 c7 40 39 8f 8c 89 de e8 91 be 69 fd 90 <0f> 0b 90 90 49 bd 00 00 00 00 00 fc ff df 4c 8b 74 24 08 4c 8b 64
RSP: 0018:ffffc900015a7888 EFLAGS: 00010246
RAX: e0625bbf3e3b7000 RBX: ffffffffffffffe4 RCX: ffff88801d721e00
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffff81827a12 R09: fffffbfff1d7a978
R10: dffffc0000000000 R11: fffffbfff1d7a978 R12: ffff888070477ac3
R13: dffffc0000000000 R14: ffff8880344e0001 R15: ffff88806316d000
FS:  0000000000000000(0000) GS:ffff888125096000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc83632b000 CR3: 000000007741e000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 flush_space+0x32e/0xd30 fs/btrfs/space-info.c:815
 btrfs_async_reclaim_metadata_space+0x178/0x3b0 fs/btrfs/space-info.c:1120
 process_one_work kernel/workqueue.c:3238 [inline]
 process_scheduled_works+0xac5/0x18e0 kernel/workqueue.c:3319
 worker_thread+0x870/0xd50 kernel/workqueue.c:3400
 kthread+0x7b9/0x940 kernel/kthread.c:464
 ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:153
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>

Crashes (398):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/04/07 02:14 upstream 16cd1c265776 1c65791e .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (clean fs)] ci-upstream-kasan-gce-root WARNING in btrfs_chunk_alloc
2023/06/24 23:09 upstream a92b7d26c743 79782afc .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-upstream-fs WARNING in btrfs_chunk_alloc
2023/11/03 18:03 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 8de1e7afcc1c c4ac074c .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-gce-arm64 WARNING in btrfs_chunk_alloc
2024/12/27 05:56 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 573067a5a685 d3ccff63 .config console log report syz / log [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-gce-arm64 WARNING in btrfs_chunk_alloc
2024/01/10 01:13 upstream 6c1dd1fe5d8a b438bd66 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-kasan-gce-root WARNING in btrfs_chunk_alloc
2023/11/11 08:44 upstream ac347a0655db 6d6dbf8a .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-kasan-gce-smack-root WARNING in btrfs_chunk_alloc
2023/10/07 08:10 upstream 82714078aee4 5e837c76 .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-upstream-fs WARNING in btrfs_chunk_alloc
2023/06/21 08:00 upstream 99ec1ed7c2ed 09ffe269 .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-kasan-gce-selinux-root WARNING in btrfs_chunk_alloc
2023/03/30 12:15 upstream ffe78bbd5121 f325deb0 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-kasan-gce-root WARNING in btrfs_chunk_alloc
2023/01/17 21:03 upstream 6e50979a9c87 42660d9e .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-upstream-fs WARNING in btrfs_chunk_alloc
2022/12/20 03:20 upstream 2f26e424552e c52b2efb .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-kasan-gce-root WARNING in btrfs_chunk_alloc
2022/11/22 11:45 upstream eb7081409f94 1c576c23 .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-kasan-gce-selinux-root WARNING in btrfs_chunk_alloc
2023/01/08 11:43 linux-next cc3c08b41a9c 1dac8c7a .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-linux-next-kasan-gce-root WARNING in btrfs_chunk_alloc
2022/12/14 22:13 upstream e2ca6ba6ba01 b18f0a64 .config console log report syz [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-upstream-fs WARNING in btrfs_chunk_alloc
2025/04/08 08:53 upstream 0af2f6be1b42 a2ada0e7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in btrfs_chunk_alloc
2025/04/08 05:57 upstream 0af2f6be1b42 a2ada0e7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in btrfs_chunk_alloc
2025/04/07 19:45 upstream 0af2f6be1b42 a2ada0e7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in btrfs_chunk_alloc
2025/04/07 16:54 upstream 0af2f6be1b42 a2ada0e7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in btrfs_chunk_alloc
2025/04/06 19:10 upstream 16cd1c265776 1c65791e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in btrfs_chunk_alloc
2025/03/11 13:14 upstream 4d872d51bc9d 16256247 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in btrfs_chunk_alloc
2025/03/01 21:07 upstream 03d38806a902 c3901742 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in btrfs_chunk_alloc
2025/02/27 22:40 upstream dd83757f6e68 6a8fcbc4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in btrfs_chunk_alloc
2025/02/27 05:41 upstream 5394eea10651 6a8fcbc4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in btrfs_chunk_alloc
2025/02/26 17:33 upstream ac9c34d1e45a d34966d1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in btrfs_chunk_alloc
2025/02/26 10:23 upstream ac9c34d1e45a d34966d1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in btrfs_chunk_alloc
2025/02/23 05:28 upstream 5cf80612d3f7 d34966d1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in btrfs_chunk_alloc
2025/02/23 05:27 upstream 5cf80612d3f7 d34966d1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in btrfs_chunk_alloc
2024/06/17 14:49 upstream 2ccbdf43d5e7 f429ab00 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in btrfs_chunk_alloc
2025/04/25 01:06 upstream e72e9e693307 e3715315 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in btrfs_chunk_alloc
2025/04/04 22:00 upstream e48e99b6edf4 c53ea9c9 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in btrfs_chunk_alloc
2025/03/27 23:52 upstream 1a9239bb4253 928390c4 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in btrfs_chunk_alloc
2025/03/26 07:07 upstream 2df0c02dab82 89d30d73 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in btrfs_chunk_alloc
2025/03/25 03:17 upstream 38fec10eb60d 875573af .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in btrfs_chunk_alloc
2025/03/16 14:00 upstream eb88e6bfbc0a e2826670 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in btrfs_chunk_alloc
2025/03/07 14:46 upstream 00a7d39898c8 7e3bd60d .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in btrfs_chunk_alloc
2025/03/04 11:56 upstream 99fa936e8e4f c3901742 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in btrfs_chunk_alloc
2025/02/25 23:48 upstream 2a1944bff549 d34966d1 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in btrfs_chunk_alloc
2025/02/14 20:16 upstream 128c8f96eb86 fe17639f .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in btrfs_chunk_alloc
2025/02/01 14:55 upstream 69e858e0b8b2 0dff8567 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in btrfs_chunk_alloc
2025/01/26 14:07 upstream aa22f4da2a46 9fbd772e .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in btrfs_chunk_alloc
2025/01/26 02:29 upstream 405057718a1f 9fbd772e .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in btrfs_chunk_alloc
2025/01/25 12:50 upstream b46c89c08f41 9fbd772e .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in btrfs_chunk_alloc
2025/01/23 17:06 upstream 21266b8df522 f6a35ef3 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in btrfs_chunk_alloc
2025/01/21 01:34 upstream ffd294d346d1 6e87cfa2 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in btrfs_chunk_alloc
2025/01/18 08:54 upstream ad26fc09dabf f2cb035c .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in btrfs_chunk_alloc
2025/01/12 07:56 upstream b62cef9a5c67 6dbc6a9b .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in btrfs_chunk_alloc
2025/01/08 18:25 upstream 09a0fa92e5b4 f3558dbf .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in btrfs_chunk_alloc
2024/06/19 21:51 upstream 2ccbdf43d5e7 c2e07261 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in btrfs_chunk_alloc
2023/04/15 12:48 upstream 7a934f4bd7d6 ec410564 .config console log report info ci-qemu-upstream WARNING in btrfs_chunk_alloc
2022/11/22 11:30 upstream eb7081409f94 1c576c23 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in btrfs_chunk_alloc
2024/12/19 15:06 linux-next 8503810115fb 1d58202c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in btrfs_chunk_alloc
2025/04/21 23:14 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci c72692105976 2a20f901 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in btrfs_chunk_alloc
2025/04/10 20:52 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 2fe2b96c3818 1bc60a19 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in btrfs_chunk_alloc
2025/04/03 03:34 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci a2392f333575 996a9618 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in btrfs_chunk_alloc
2025/03/31 22:18 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci a2392f333575 36d76a97 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in btrfs_chunk_alloc
2025/03/25 23:33 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci a2392f333575 89d30d73 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in btrfs_chunk_alloc
2025/03/19 11:27 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci b5737d35364f 8d0a2921 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in btrfs_chunk_alloc
2025/03/17 06:28 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci a5618886fdab 948c34e4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in btrfs_chunk_alloc
2025/03/15 14:27 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci a5618886fdab e2826670 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in btrfs_chunk_alloc
2025/03/11 00:15 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 0a6021b3fc20 16256247 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in btrfs_chunk_alloc
2025/03/06 14:46 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 14d05f12084d 831e3629 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in btrfs_chunk_alloc
2025/03/06 07:11 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 14d05f12084d 034534df .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in btrfs_chunk_alloc
2025/03/04 08:54 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci e056da87c780 c3901742 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in btrfs_chunk_alloc
2025/03/02 17:40 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci e056da87c780 c3901742 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in btrfs_chunk_alloc
2025/02/09 20:22 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 2014c95afece ef44b750 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in btrfs_chunk_alloc
2025/02/09 06:13 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 2014c95afece ef44b750 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in btrfs_chunk_alloc
2025/02/09 02:55 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 2014c95afece ef44b750 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in btrfs_chunk_alloc
2025/02/02 22:13 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 1950a0af2d55 568559e4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in btrfs_chunk_alloc
2025/01/20 11:32 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 1950a0af2d55 f2cb035c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in btrfs_chunk_alloc
* Struck through repros no longer work on HEAD.