INFO: rcu detected stall in sys

Title	Replies (including bot)	Last reply
Reminder: 36 open syzbot bugs in "net/bpf" subsystem	1 (1)	2019/07/03 06:01
Reminder: 30 open syzbot bugs in "net/bpf" subsystem	1 (1)	2019/06/24 05:01
INFO: rcu detected stall in sys_bpf	0 (1)	2019/03/27 18:31

Title

Replies (including bot)

Last reply

Reminder: 36 open syzbot bugs in "net/bpf" subsystem

1 (1)

2019/07/03 06:01

Reminder: 30 open syzbot bugs in "net/bpf" subsystem

1 (1)

2019/06/24 05:01

INFO: rcu detected stall in sys_bpf

0 (1)

2019/03/27 18:31

Kernel	Title	Rank 🛈	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
upstream	INFO: rcu detected stall in sys_bpf (5) bpf	1	C	unreliable		56	1366d	1459d	0/29	closed as invalid on 2022/02/08 10:34
upstream	INFO: rcu detected stall in sys_bpf (9) net bpf	1	C	error		74	269d	509d	0/29	auto-obsoleted due to no activity on 2025/04/03 05:23
linux-5.15	INFO: rcu detected stall in sys_bpf (2) origin:lts-only	1	syz			65	1d04h	558d	0/3	upstream: reported syz repro on 2024/04/09 19:57
upstream	INFO: rcu detected stall in sys_bpf (3) bpf	1				4	2111d	2111d	0/29	closed as invalid on 2020/01/09 08:13
linux-5.15	INFO: rcu detected stall in sys_bpf	1				2	682d	725d	0/3	auto-obsoleted due to no activity on 2024/03/16 17:33
upstream	INFO: rcu detected stall in sys_bpf (2) bpf	1				12	2146d	2148d	0/29	closed as invalid on 2019/12/04 14:14
upstream	INFO: rcu detected stall in sys_bpf (8) bpf	1				1	700d	700d	0/29	auto-obsoleted due to no activity on 2024/02/17 03:10
linux-6.1	INFO: rcu detected stall in sys_bpf origin:lts-only	1	syz			39	1d04h	547d	0/3	upstream: reported syz repro on 2024/04/20 10:27
linux-4.19	INFO: rcu detected stall in sys_bpf	1				3	2095d	2225d	0/1	auto-closed as invalid on 2020/05/23 14:47
upstream	BUG: soft lockup in sys_bpf mm	1				41	7d01h	179d	0/29	upstream: reported on 2025/04/23 05:48
upstream	INFO: rcu detected stall in sys_bpf (6) net	1				7	1177d	1327d	0/29	auto-obsoleted due to no activity on 2022/10/28 06:32
upstream	INFO: rcu detected stall in sys_bpf (4) bpf net	1				3	2064d	2103d	0/29	auto-closed as invalid on 2020/05/24 13:03
linux-6.6	INFO: rcu detected stall in sys_bpf origin:lts-only	1	C		inconclusive	29	7d02h	70d	0/2	upstream: reported C repro on 2025/08/10 11:50

rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P12710 rcu: (detected by 1, t=10502 jiffies, g=35417, q=187) syz-executor.0 R running task 27704 12710 8268 0x00000006 Call Trace: <IRQ> sched_show_task kernel/sched/core.c:5338 [inline] sched_show_task.cold+0x291/0x2fc kernel/sched/core.c:5313 rcu_print_detail_task_stall_rnp+0xc7/0x103 kernel/rcu/tree_plugin.h:667 rcu_print_detail_task_stall kernel/rcu/tree_plugin.h:680 [inline] print_other_cpu_stall kernel/rcu/tree.c:1301 [inline] check_cpu_stall kernel/rcu/tree.c:1441 [inline] rcu_pending kernel/rcu/tree.c:3103 [inline] rcu_sched_clock_irq.cold+0x66b/0xa4a kernel/rcu/tree.c:2544 update_process_times+0x32/0x80 kernel/time/timer.c:1635 tick_sched_handle+0xa2/0x190 kernel/time/tick-sched.c:161 tick_sched_timer+0x47/0x130 kernel/time/tick-sched.c:1271 __run_hrtimer kernel/time/hrtimer.c:1389 [inline] __hrtimer_run_queues+0x33e/0xde0 kernel/time/hrtimer.c:1451 hrtimer_interrupt+0x314/0x770 kernel/time/hrtimer.c:1509 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1035 [inline] smp_apic_timer_interrupt+0x120/0x570 arch/x86/kernel/apic/apic.c:1060 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:807 </IRQ> RIP: 0010:lock_acquire+0x1b/0x3f0 kernel/locking/lockdep.c:4200 Code: 85 70 ff ff ff e9 48 fc ff ff 0f 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 55 45 89 c3 48 89 e5 41 57 41 89 cf 41 56 41 89 d6 <41> 55 41 89 f5 41 54 49 89 fc 53 65 48 8b 1c 25 00 ee 01 00 48 8d RSP: 0018:ffff88808547fc68 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: dffffc0000000000 RBX: dffffc0000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffc900d902a3a0 RBP: ffff88808547fc78 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: ffffc900d902a388 R13: ffffffffffffffea R14: 0000000000000000 R15: 0000000000000000 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:135 [inline] _raw_spin_lock_bh+0x33/0x50 kernel/locking/spinlock.c:168 sock_hash_free+0x133/0x4a0 net/core/sock_map.c:855 map_create kernel/bpf/syscall.c:605 [inline] __do_sys_bpf+0x11d8/0x3f60 kernel/bpf/syscall.c:2695 __se_sys_bpf kernel/bpf/syscall.c:2672 [inline] __x64_sys_bpf+0x73/0xb0 kernel/bpf/syscall.c:2672 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x458da9 Code: ad b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fb670e7cc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000458da9 RDX: 000000000000003c RSI: 0000000020000040 RDI: 0000000000000000 RBP: 000000000073c0e0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fb670e7d6d4 R13: 00000000004bf05a R14: 00000000004cffa8 R15: 00000000ffffffff syz-executor.0 R running task 27704 12710 8268 0x80000006 Call Trace: <IRQ> sched_show_task kernel/sched/core.c:5338 [inline] sched_show_task.cold+0x291/0x2fc kernel/sched/core.c:5313 rcu_print_detail_task_stall_rnp+0xc7/0x103 kernel/rcu/tree_plugin.h:667 rcu_print_detail_task_stall kernel/rcu/tree_plugin.h:682 [inline] print_other_cpu_stall kernel/rcu/tree.c:1301 [inline] check_cpu_stall kernel/rcu/tree.c:1441 [inline] rcu_pending kernel/rcu/tree.c:3103 [inline] rcu_sched_clock_irq.cold+0x6d4/0xa4a kernel/rcu/tree.c:2544 update_process_times+0x32/0x80 kernel/time/timer.c:1635 tick_sched_handle+0xa2/0x190 kernel/time/tick-sched.c:161 tick_sched_timer+0x47/0x130 kernel/time/tick-sched.c:1271 __run_hrtimer kernel/time/hrtimer.c:1389 [inline] __hrtimer_run_queues+0x33e/0xde0 kernel/time/hrtimer.c:1451 hrtimer_interrupt+0x314/0x770 kernel/time/hrtimer.c:1509 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1035 [inline] smp_apic_timer_interrupt+0x120/0x570 arch/x86/kernel/apic/apic.c:1060 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:807 </IRQ> RIP: 0010:lock_acquire+0x1b/0x3f0 kernel/locking/lockdep.c:4200 Code: 85 70 ff ff ff e9 48 fc ff ff 0f 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 55 45 89 c3 48 89 e5 41 57 41 89 cf 41 56 41 89 d6 <41> 55 41 89 f5 41 54 49 89 fc 53 65 48 8b 1c 25 00 ee 01 00 48 8d RSP: 0018:ffff88808547fc68 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: dffffc0000000000 RBX: dffffc0000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffc900d902a3a0 RBP: ffff88808547fc78 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: ffffc900d902a388 R13: ffffffffffffffea R14: 0000000000000000 R15: 0000000000000000 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:135 [inline] _raw_spin_lock_bh+0x33/0x50 kernel/locking/spinlock.c:168 sock_hash_free+0x133/0x4a0 net/core/sock_map.c:855 map_create kernel/bpf/syscall.c:605 [inline] __do_sys_bpf+0x11d8/0x3f60 kernel/bpf/syscall.c:2695 __se_sys_bpf kernel/bpf/syscall.c:2672 [inline] __x64_sys_bpf+0x73/0xb0 kernel/bpf/syscall.c:2672 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x458da9 Code: ad b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fb670e7cc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000458da9 RDX: 000000000000003c RSI: 0000000020000040 RDI: 0000000000000000 RBP: 000000000073c0e0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fb670e7d6d4 R13: 00000000004bf05a R14: 00000000004cffa8 R15: 00000000ffffffff

Crashes (3):
Time	Kernel	Commit	Syzkaller	Config	Log	Report	Manager
2019/04/28 18:30	bpf	21f1b8a6636c	b617407b	.config	console log	report	ci-upstream-bpf-kasan-gce
2019/07/26 00:17	bpf-next	192f0f8e9db7	732bc5a0	.config	console log	report	ci-upstream-bpf-next-kasan-gce
2019/03/27 02:44	linux-next	ab8bba4ec4b9	55684ce1	.config	console log	report	ci-upstream-linux-next-kasan-gce-root

Crashes (3):

Assets (help?)