syzbot


WARNING in mod_delayed_work_on (2)

Status: upstream: reported on 2024/11/13 03:56
Subsystems: xfs
[Documentation on labels]
Reported-by: syzbot+3c653ce382d9a9b6fbc3@syzkaller.appspotmail.com
First crash: 139d, last: 32d
Discussions (1)
Title Replies (including bot) Last reply
[syzbot] [xfs?] WARNING in mod_delayed_work_on (2) 1 (2) 2024/11/14 00:37
Similar bugs (1)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream WARNING in mod_delayed_work_on xfs 4 267d 306d 0/28 auto-obsoleted due to no activity on 2024/10/12 00:08

Sample crash report:
------------[ cut here ]------------
WARNING: CPU: 0 PID: 5834 at kernel/workqueue.c:2496 __queue_delayed_work+0x291/0x300 kernel/workqueue.c:2496
Modules linked in:
CPU: 0 UID: 0 PID: 5834 Comm: syz-executor Not tainted 6.14.0-rc4-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:__queue_delayed_work+0x291/0x300 kernel/workqueue.c:2496
Code: df 89 ee 48 83 c4 08 5b 41 5c 41 5d 41 5e 41 5f 5d e9 53 2e 25 00 e8 5e a4 38 00 90 0f 0b 90 e9 9f fd ff ff e8 50 a4 38 00 90 <0f> 0b 90 e9 cb fd ff ff e8 42 a4 38 00 90 0f 0b 90 e9 e7 fd ff ff
RSP: 0018:ffffc9000422fa80 EFLAGS: 00010093
RAX: ffffffff81891950 RBX: ffffe8ffffc67270 RCX: ffff888066321e00
RDX: 0000000000000000 RSI: ffff888025d12c00 RDI: 0000000000000000
RBP: ffffe8ffffc672d0 R08: ffffffff81891af6 R09: 0000000000000000
R10: ffffc9000422fb00 R11: fffff52000845f61 R12: 0000000000000001
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff888025d12c00
FS:  000055558d954500(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055558d97f648 CR3: 000000005f908000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 mod_delayed_work_on+0x153/0x370 kernel/workqueue.c:2595
 xfs_inodegc_queue fs/xfs/xfs_icache.c:2212 [inline]
 xfs_inode_mark_reclaimable+0x7a6/0xf40 fs/xfs/xfs_icache.c:2248
 destroy_inode fs/inode.c:386 [inline]
 evict+0x7af/0x9a0 fs/inode.c:827
 d_delete_notify include/linux/fsnotify.h:376 [inline]
 vfs_rmdir+0x3d7/0x510 fs/namei.c:4409
 do_rmdir+0x3b5/0x580 fs/namei.c:4455
 __do_sys_unlinkat fs/namei.c:4631 [inline]
 __se_sys_unlinkat fs/namei.c:4625 [inline]
 __x64_sys_unlinkat+0xde/0xf0 fs/namei.c:4625
 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: 0033:0x7f72d7f8c747
Code: 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 07 01 00 00 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:00007ffc9ea8dc58 EFLAGS: 00000207 ORIG_RAX: 0000000000000107
RAX: ffffffffffffffda RBX: 0000000000000065 RCX: 00007f72d7f8c747
RDX: 0000000000000200 RSI: 00007ffc9ea8ee00 RDI: 00000000ffffff9c
RBP: 00007f72d800e08c R08: 000055558d97766b R09: 0000000000000000
R10: 0000000000001000 R11: 0000000000000207 R12: 00007ffc9ea8ee00
R13: 00007f72d800e08c R14: 0000000000017fb1 R15: 00007ffc9ea90fc0
 </TASK>

Crashes (3):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/02/24 04:25 upstream d082ecbc71e9 d34966d1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in mod_delayed_work_on
2024/11/09 03:54 upstream f1dce1f09380 6b856513 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in mod_delayed_work_on
2024/12/19 21:15 linux-next 8503810115fb 1d58202c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in mod_delayed_work_on
* Struck through repros no longer work on HEAD.