syzbot


WARNING: ODEBUG bug in __do_softirq

Status: auto-closed as invalid on 2022/01/08 08:22
Reported-by: syzbot+4d328d8f7cf62bc7069c@syzkaller.appspotmail.com
First crash: 1268d, last: 1168d
Similar bugs (3)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream WARNING: ODEBUG bug in __do_softirq afs C done error 31 1143d 2469d 0/28 auto-obsoleted due to no activity on 2023/04/16 13:00
android-49 WARNING: ODEBUG bug in __do_softirq syz 1 2253d 2048d 0/3 public: reported syz repro on 2019/04/14 09:28
linux-5.15 WARNING: ODEBUG bug in __do_softirq origin:lts-only C done 1 555d 557d 3/3 fixed on 2023/06/15 21:37

Sample crash report:
------------[ cut here ]------------
ODEBUG: active_state active (active state 0) object type: rcu_head hint:           (null)
WARNING: CPU: 1 PID: 18 at lib/debugobjects.c:325 debug_print_object+0x160/0x250 lib/debugobjects.c:325
Kernel panic - not syncing: panic_on_warn set ...

CPU: 1 PID: 18 Comm: ksoftirqd/1 Not tainted 4.19.206-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
 panic+0x26a/0x50e kernel/panic.c:186
 __warn.cold+0x20/0x5a kernel/panic.c:541
 report_bug+0x262/0x2b0 lib/bug.c:183
 fixup_bug arch/x86/kernel/traps.c:178 [inline]
 fixup_bug arch/x86/kernel/traps.c:173 [inline]
 do_error_trap+0x1d7/0x310 arch/x86/kernel/traps.c:296
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:1038
RIP: 0010:debug_print_object+0x160/0x250 lib/debugobjects.c:325
Code: dd a0 f0 b3 88 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 bf 00 00 00 48 8b 14 dd a0 f0 b3 88 48 c7 c7 c0 e4 b3 88 e8 b0 63 7b 04 <0f> 0b 83 05 b3 e2 af 07 01 48 83 c4 20 5b 5d 41 5c 41 5d c3 48 89
RSP: 0018:ffff8880b5acfba8 EFLAGS: 00010086
RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000
RDX: 0000000000000100 RSI: ffffffff814e0d61 RDI: ffffed1016b59f67
RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000005 R11: ffffffff8c66405b R12: ffffffff89f85ec0
R13: 0000000000000000 R14: ffffffff8d3e0d88 R15: ffff88808df27df0
 debug_object_active_state lib/debugobjects.c:738 [inline]
 debug_object_active_state+0x245/0x330 lib/debugobjects.c:713
 debug_rcu_head_unqueue kernel/rcu/rcu.h:202 [inline]
 rcu_do_batch kernel/rcu/tree.c:2583 [inline]
 invoke_rcu_callbacks kernel/rcu/tree.c:2897 [inline]
 __rcu_process_callbacks kernel/rcu/tree.c:2864 [inline]
 rcu_process_callbacks+0x9af/0x18b0 kernel/rcu/tree.c:2881
 __do_softirq+0x265/0x980 kernel/softirq.c:292
 run_ksoftirqd+0x57/0x110 kernel/softirq.c:653
 smpboot_thread_fn+0x655/0x9e0 kernel/smpboot.c:164
 kthread+0x33f/0x460 kernel/kthread.c:259
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415

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Crashes (2):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2021/09/10 08:21 linux-4.19.y b172b44fcb17 e2776ee4 .config console log report info ci2-linux-4-19 WARNING: ODEBUG bug in __do_softirq
2021/06/02 21:01 linux-4.19.y 6b7b0056defc 0740de69 .config console log report info ci2-linux-4-19 WARNING: ODEBUG bug in __do_softirq
* Struck through repros no longer work on HEAD.