syzbot


WARNING in flush_cpu_slab

Status: upstream: reported on 2024/05/23 02:27
Subsystems: kernel
[Documentation on labels]
Reported-by: syzbot+50e25cfa4f917d41749f@syzkaller.appspotmail.com
First crash: 26d, last: 10d
Discussions (1)
Title Replies (including bot) Last reply
[syzbot] [kernel?] WARNING in flush_cpu_slab 5 (6) 2024/05/24 08:02

Sample crash report:
------------[ cut here ]------------
DEBUG_LOCKS_WARN_ON(l->owner)
WARNING: CPU: 0 PID: 9 at include/linux/local_lock_internal.h:30 local_lock_acquire include/linux/local_lock_internal.h:30 [inline]
WARNING: CPU: 0 PID: 9 at include/linux/local_lock_internal.h:30 flush_slab mm/slub.c:3088 [inline]
WARNING: CPU: 0 PID: 9 at include/linux/local_lock_internal.h:30 flush_cpu_slab+0x37f/0x410 mm/slub.c:3146
Modules linked in:
CPU: 0 PID: 9 Comm: kworker/0:1 Not tainted 6.10.0-rc2-syzkaller-00007-gf06ce441457d #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Workqueue: slub_flushwq flush_cpu_slab
RIP: 0010:local_lock_acquire include/linux/local_lock_internal.h:30 [inline]
RIP: 0010:flush_slab mm/slub.c:3088 [inline]
RIP: 0010:flush_cpu_slab+0x37f/0x410 mm/slub.c:3146
Code: ff e8 b5 07 fb 08 e9 25 ff ff ff e8 ab 07 fb 08 e9 46 ff ff ff 90 48 c7 c6 ef 90 37 8d 48 c7 c7 38 5c 37 8d e8 12 8f 6f ff 90 <0f> 0b 90 90 e9 dd fe ff ff 90 48 c7 c6 f8 90 37 8d 48 c7 c7 38 5c
RSP: 0018:ffffc900003b7c98 EFLAGS: 00010086
RAX: 0000000000000000 RBX: ffffe8ffad092b20 RCX: ffffffff81510229
RDX: ffff888015f1c880 RSI: ffffffff81510236 RDI: 0000000000000001
RBP: ffff88802702b540 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 000000002d2d2d2d R12: 0000000000000200
R13: ffffe8ffad092b40 R14: 0000000000000000 R15: ffffc900003b7d80
FS:  0000000000000000(0000) GS:ffff88802c000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c0008fe000 CR3: 0000000023ada000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 process_one_work+0x958/0x1ad0 kernel/workqueue.c:3231
 process_scheduled_works kernel/workqueue.c:3312 [inline]
 worker_thread+0x6c8/0xf70 kernel/workqueue.c:3393
 kthread+0x2c1/0x3a0 kernel/kthread.c:389
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>

Crashes (3):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/06/03 19:05 upstream f06ce441457d c2e07261 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in flush_cpu_slab
2024/05/22 03:46 upstream 2a8120d7b482 c2e07261 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in flush_cpu_slab
2024/05/19 02:15 upstream 0cc6f45cecb4 c2e07261 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in flush_cpu_slab
* Struck through repros no longer work on HEAD.