WARNING: locking bug in try_to_grab

Title	Replies (including bot)	Last reply
WARNING: locking bug in try_to_grab_pending	1 (3)	2020/08/14 15:05
Reminder: 99 open syzbot bugs in net subsystem	14 (14)	2019/07/31 15:13
Reminder: 94 open syzbot bugs in net subsystem	1 (1)	2019/06/25 05:48

Title

Replies (including bot)

Last reply

WARNING: locking bug in try_to_grab_pending

1 (3)

2020/08/14 15:05

Reminder: 99 open syzbot bugs in net subsystem

14 (14)

2019/07/31 15:13

Reminder: 94 open syzbot bugs in net subsystem

1 (1)

2019/06/25 05:48


Created	Duration	User	Repo	Result
2020/08/14 07:52	5h23m	bisect fix	net-next-old	OK (1) job log
2020/05/21 06:13	26m	bisect fix	net-next-old	OK (0) job log log
2020/04/21 05:46	26m	bisect fix	net-next-old	OK (0) job log log
2020/03/22 05:08	25m	bisect fix	net-next-old	OK (0) job log log
2020/01/27 22:04	25m	bisect fix	net-next-old	OK (0) job log log
2019/12/18 17:21	24m	bisect fix	net-next-old	OK (0) job log log
2019/11/09 00:40	26m	bisect fix	net-next-old	OK (0) job log log
2019/08/19 03:33	26m	bisect fix	net-next-old	OK (0) job log log

Started in network mode Own node identity 7f000001, cluster identity 4711 Enabled bearer <udp:syz0>, priority 10 ------------[ cut here ]------------ DEBUG_LOCKS_WARN_ON(class_idx > MAX_LOCKDEP_KEYS) WARNING: CPU: 1 PID: 3476 at kernel/locking/lockdep.c:3315 __lock_acquire+0x13bf/0x4700 kernel/locking/lockdep.c:3315 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 3476 Comm: kworker/1:2 Not tainted 5.0.0-rc5+ #59 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: addrconf_dad_work (ipv6_addrconf) Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x172/0x1f0 lib/dump_stack.c:113 panic+0x2cb/0x65c kernel/panic.c:214 __warn.cold+0x20/0x45 kernel/panic.c:571 report_bug+0x263/0x2b0 lib/bug.c:186 fixup_bug arch/x86/kernel/traps.c:178 [inline] fixup_bug arch/x86/kernel/traps.c:173 [inline] do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:271 do_invalid_op+0x37/0x50 arch/x86/kernel/traps.c:290 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:973 RIP: 0010:__lock_acquire+0x13bf/0x4700 kernel/locking/lockdep.c:3315 Code: 8b 1d e9 c7 05 08 45 85 db 0f 85 d6 f4 ff ff 48 c7 c6 a0 a4 6b 87 48 c7 c7 00 79 6b 87 44 89 9c 24 98 00 00 00 e8 3f 2f ec ff <0f> 0b 44 8b 9c 24 98 00 00 00 e9 af f4 ff ff 8b 3d 5c 7a fe 08 85 RSP: 0018:ffff88809b5478b0 EFLAGS: 00010086 RAX: 0000000000000000 RBX: 00000000005e00a8 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff815a8f66 RDI: ffffed10136a8f08 RBP: ffff88809b547a78 R08: ffff88809b58e680 R09: fffffbfff1133341 R10: fffffbfff1133340 R11: ffffffff88999a03 R12: ffff88809b58efb8 R13: ffff88809b58efc2 R14: 00000000005e00a8 R15: ffff88809b58e680 lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:3841 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2f/0x40 kernel/locking/spinlock.c:144 spin_lock include/linux/spinlock.h:329 [inline] try_to_grab_pending+0x129/0x710 kernel/workqueue.c:1259 __cancel_work kernel/workqueue.c:3115 [inline] cancel_delayed_work+0x82/0x2d0 kernel/workqueue.c:3144 addrconf_del_dad_work+0x1c/0x50 net/ipv6/addrconf.c:312 addrconf_dad_stop+0x129/0x2e0 net/ipv6/addrconf.c:2040 addrconf_dad_begin net/ipv6/addrconf.c:3973 [inline] addrconf_dad_work+0xdbf/0x1150 net/ipv6/addrconf.c:4062 process_one_work+0x98e/0x1790 kernel/workqueue.c:2173 worker_thread+0x98/0xe40 kernel/workqueue.c:2319 kthread+0x357/0x430 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352 Kernel Offset: disabled Rebooting in 86400 seconds..