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INFO: rcu detected stall in kcompactd (2)

Status: upstream: reported C repro on 2024/06/01 03:17
Subsystems: mm
[Documentation on labels]
Reported-by: syzbot+54594368fbd5a4f1754a@syzkaller.appspotmail.com
First crash: 146d, last: 32d
Cause bisection: failed (error log, bisect log)
  
Fix bisection: fixed by (bisect log) [merge commit]:
commit 5ba202a7c986fc58dd2fd1571c99667ab2699995
Author: Linus Torvalds <torvalds@linux-foundation.org>
Date: Tue Sep 17 10:40:34 2024 +0000

  Merge tag 'x86-build-2024-09-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

  
▶ ▼ Discussions (1)
Title Replies (including bot) Last reply
[syzbot] [mm?] INFO: rcu detected stall in kcompactd (2) 2 (5) 2024/06/01 09:34
▶ ▼ Similar bugs (3)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream INFO: rcu detected stall in kcompactd mm 1 430d 430d 0/28 auto-obsoleted due to no activity on 2023/11/10 08:17
linux-6.1 INFO: rcu detected stall in kcompactd 1 126d 126d 0/3 auto-obsoleted due to no activity on 2024/09/19 19:09
upstream BUG: soft lockup in kcompactd kvm 1 1078d 1074d 0/28 auto-closed as invalid on 2022/01/31 12:36
▶ ▼ Last patch testing requests (3)
Created Duration User Patch Repo Result
2024/06/11 18:32 23m retest repro upstream report log
2024/06/01 09:07 22m hdanton@sina.com patch https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master report log
2024/06/01 07:01 25m hdanton@sina.com patch https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master error
▶ ▼ Fix bisection attempts (3)
Created Duration User Patch Repo Result
2024/10/13 19:22 8h57m bisect fix upstream OK (1) job log
2024/09/13 12:03 2h57m bisect fix upstream OK (0) job log log
2024/08/14 00:35 5h44m bisect fix upstream OK (0) job log log

Sample crash report:
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	(detected by 1, t=10502 jiffies, g=106753, q=984 ncpus=2)
rcu: All QSes seen, last rcu_preempt kthread activity 10399 (4295032026-4295021627), jiffies_till_next_fqs=1, root ->qsmask 0x0
rcu: rcu_preempt kthread starved for 10399 jiffies! g106753 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
rcu: 	Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt     state:R
  running task     stack:26360 pid:17    tgid:17    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5408 [inline]
 __schedule+0x17e8/0x4a20 kernel/sched/core.c:6745
 __schedule_loop kernel/sched/core.c:6822 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6837
 schedule_timeout+0x1be/0x310 kernel/time/timer.c:2581
 rcu_gp_fqs_loop+0x2df/0x1330 kernel/rcu/tree.c:2000
 rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:2202
 kthread+0x2f2/0x390 kernel/kthread.c:389
 ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
CPU: 1 PID: 34 Comm: kcompactd1 Not tainted 6.10.0-rc7-syzkaller-00256-gd0d0cd380055 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
RIP: 0010:get_current arch/x86/include/asm/current.h:49 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x8/0x70 kernel/kcov.c:206
Code: 8b 3d ac ea 45 0c 48 89 de 5b e9 93 4d 5a 00 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 48 8b 04 24 <65> 48 8b 0c 25 c0 d4 03 00 65 8b 15 90 ac 6d 7e f7 c2 00 01 ff 00
RSP: 0018:ffffc90000a18000 EFLAGS: 00000202

RAX: ffffffff8140f53e RBX: ffffffff90293114 RCX: ffff8880186f9e00
RDX: 0000000000000102 RSI: ffffffff8ba014c9 RDI: ffffffff8ba014c2
RBP: ffffffff8ba014c2 R08: ffffffff8140f500 R09: ffffc90000a181d0
R10: 0000000000000003 R11: ffffffff8181de00 R12: ffffffff90293114
R13: ffffffff90293118 R14: ffffffff8ba014c9 R15: ffffffff90293114
FS:  0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2cd19ff8 CR3: 0000000069fc4000 CR4: 0000000000350ef0
Call Trace:
 <IRQ>
 __orc_find arch/x86/kernel/unwind_orc.c:99 [inline]
 orc_find arch/x86/kernel/unwind_orc.c:227 [inline]
 unwind_next_frame+0x54e/0x2a00 arch/x86/kernel/unwind_orc.c:494
 arch_stack_walk+0x151/0x1b0 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122
 kasan_save_stack mm/kasan/common.c:47 [inline]
 kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
 poison_kmalloc_redzone mm/kasan/common.c:370 [inline]
 __kasan_kmalloc+0x98/0xb0 mm/kasan/common.c:387
 kasan_kmalloc include/linux/kasan.h:211 [inline]
 kmalloc_trace_noprof+0x19c/0x2c0 mm/slub.c:4154
 kmalloc_noprof include/linux/slab.h:660 [inline]
 kzalloc_noprof include/linux/slab.h:778 [inline]
 ref_tracker_alloc+0x14b/0x490 lib/ref_tracker.c:203
 __netdev_tracker_alloc include/linux/netdevice.h:4038 [inline]
 netdev_hold include/linux/netdevice.h:4067 [inline]
 ___neigh_create+0xc86/0x2470 net/core/neighbour.c:657
 ip6_finish_output2+0x1629/0x1670 net/ipv6/ip6_output.c:128
 ip6_finish_output+0x41e/0x810 net/ipv6/ip6_output.c:222
 NF_HOOK include/linux/netfilter.h:314 [inline]
 ndisc_send_skb+0xab0/0x1380 net/ipv6/ndisc.c:509
 addrconf_rs_timer+0x36e/0x660 net/ipv6/addrconf.c:4039
 call_timer_fn+0x190/0x650 kernel/time/timer.c:1792
 expire_timers kernel/time/timer.c:1843 [inline]
 __run_timers kernel/time/timer.c:2417 [inline]
 __run_timer_base+0x66a/0x8e0 kernel/time/timer.c:2428
 run_timer_base kernel/time/timer.c:2437 [inline]
 run_timer_softirq+0xb7/0x170 kernel/time/timer.c:2447
 handle_softirqs+0x2c6/0x970 kernel/softirq.c:554
 __do_softirq kernel/softirq.c:588 [inline]
 invoke_softirq kernel/softirq.c:428 [inline]
 __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:649
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
 sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1043
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0xd8/0x140 kernel/locking/spinlock.c:194
Code: 9c 8f 44 24 20 42 80 3c 23 00 74 08 4c 89 f7 e8 9e b4 6a f6 f6 44 24 21 02 75 52 41 f7 c7 00 02 00 00 74 01 fb bf 01 00 00 00 <e8> 83 64 d4 f5 65 8b 05 34 9b 72 74 85 c0 74 43 48 c7 04 24 0e 36
RSP: 0018:ffffc90000aa78a0 EFLAGS: 00000206

RAX: 9b37ae5baa786f00 RBX: 1ffff92000154f18 RCX: ffffffff947a5603
RDX: dffffc0000000000 RSI: ffffffff8bcabb40 RDI: 0000000000000001
RBP: ffffc90000aa7930 R08: ffffffff8fad956f R09: 1ffffffff1f5b2ad
R10: dffffc0000000000 R11: fffffbfff1f5b2ae R12: dffffc0000000000
R13: 1ffff92000154f14 R14: ffffc90000aa78c0 R15: 0000000000000246
 __mod_timer+0xb89/0xeb0 kernel/time/timer.c:1186
 schedule_timeout+0x1b9/0x310 kernel/time/timer.c:2580
 kcompactd+0x85a/0x1530 mm/compaction.c:3206
 kthread+0x2f2/0x390 kernel/kthread.c:389
 ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting
gspca_pac7302 2-1:0.0: URB error -71, resubmitting

Crashes (4):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/07/14 02:09 upstream d0d0cd380055 eaeb5c15 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: rcu detected stall in kcompactd
2024/05/28 17:14 upstream 2bfcfd584ff5 34889ee3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: rcu detected stall in kcompactd
2024/05/28 03:05 upstream 2bfcfd584ff5 f550015e .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in kcompactd
2024/05/23 01:00 linux-next 124cfbcd6d18 4d098039 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: rcu detected stall in kcompactd
* Struck through repros no longer work on HEAD.