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INFO: rcu detected stall in evdev_write (3)

Status: auto-obsoleted due to no activity on 2024/07/04 22:31
Subsystems: input
[Documentation on labels]
First crash: 440d, last: 440d
▶ ▼ Similar bugs (3)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream INFO: rcu detected stall in evdev_write input 1 1 2070d 2070d 0/29 auto-closed as invalid on 2020/02/17 08:16
upstream INFO: rcu detected stall in evdev_write (4) input 1 2 327d 341d 0/29 auto-obsoleted due to no activity on 2024/11/24 21:52
upstream INFO: rcu detected stall in evdev_write (2) input 1 1 1857d 1857d 0/29 auto-closed as invalid on 2020/09/17 03:51

Sample crash report:
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	1-...!: (1 GPs behind) idle=46b4/1/0x4000000000000000 softirq=38707/38708 fqs=1
rcu: 	(detected by 0, t=10506 jiffies, g=53101, q=313 ncpus=2)
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 9885 Comm: syz-executor.2 Not tainted 6.9.0-rc6-next-20240503-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:lockdep_enabled kernel/locking/lockdep.c:122 [inline]
RIP: 0010:lock_acquire+0x144/0x550 kernel/locking/lockdep.c:5730
Code: 8b 05 00 21 90 7e 85 c0 0f 85 8f 01 00 00 65 48 8b 1c 25 00 d5 03 00 48 81 c3 dc 0a 00 00 48 89 d8 48 c1 e8 03 42 0f b6 04 28 <84> c0 0f 85 e5 02 00 00 83 3b 00 0f 85 62 01 00 00 4c 8d bc 24 80
RSP: 0018:ffffc90000a18a40 EFLAGS: 00000803
RAX: 0000000000000000 RBX: ffff8880236e8adc RCX: ffffffff81726934
RDX: 0000000000000000 RSI: ffffffff8c1fd060 RDI: ffffffff8c1fd020
RBP: ffffc90000a18b88 R08: ffffffff8fad166f R09: 1ffffffff1f5a2cd
R10: dffffc0000000000 R11: fffffbfff1f5a2ce R12: 1ffff92000143150
R13: dffffc0000000000 R14: 0000000000000000 R15: dffffc0000000000
FS:  00007f2674e446c0(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020e62000 CR3: 000000005a036000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0xd5/0x120 kernel/locking/spinlock.c:162
 debug_object_deactivate+0x158/0x390 lib/debugobjects.c:763
 debug_hrtimer_deactivate kernel/time/hrtimer.c:428 [inline]
 debug_deactivate+0x1b/0x220 kernel/time/hrtimer.c:484
 __run_hrtimer kernel/time/hrtimer.c:1655 [inline]
 __hrtimer_run_queues+0x30f/0xd50 kernel/time/hrtimer.c:1751
 hrtimer_interrupt+0x396/0x990 kernel/time/hrtimer.c:1813
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline]
 __sysvec_apic_timer_interrupt+0x110/0x3f0 arch/x86/kernel/apic/apic.c:1049
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
 sysvec_apic_timer_interrupt+0xa1/0xc0 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 2e 04 67 f6 f6 44 24 21 02 75 52 41 f7 c7 00 02 00 00 74 01 fb bf 01 00 00 00 <e8> 13 d3 d0 f5 65 8b 05 44 14 6f 74 85 c0 74 43 48 c7 04 24 0e 36
RSP: 0018:ffffc9000347fae0 EFLAGS: 00000206
RAX: 54e1c4b6ef5be400 RBX: 1ffff9200068ff60 RCX: ffffffff8172db6a
RDX: dffffc0000000000 RSI: ffffffff8bcab340 RDI: 0000000000000001
RBP: ffffc9000347fb70 R08: ffffffff92faa62f R09: 1ffffffff25f54c5
R10: dffffc0000000000 R11: fffffbfff25f54c6 R12: dffffc0000000000
R13: 1ffff9200068ff5c R14: ffffc9000347fb00 R15: 0000000000000246
 evdev_write+0x672/0x7c0 drivers/input/evdev.c:530
 vfs_write+0x2a2/0xc90 fs/read_write.c:588
 ksys_write+0x1a0/0x2c0 fs/read_write.c:643
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f267407dca9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 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 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f2674e440c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f26741abf80 RCX: 00007f267407dca9
RDX: 0000000100000008 RSI: 0000000020000000 RDI: 0000000000000005
RBP: 00007f26740c947e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f26741abf80 R15: 00007ffe07b59b58
 </TASK>
rcu: rcu_preempt kthread starved for 10500 jiffies! g53101 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0
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:25880 pid:17    tgid:17    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5408 [inline]
 __schedule+0x17e8/0x4a50 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/0x1370 kernel/rcu/tree.c:2031
 rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:2233
 kthread+0x2f0/0x390 kernel/kthread.c:389
 ret_from_fork+0x4b/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: 0 PID: 2902 Comm: kworker/u8:11 Not tainted 6.9.0-rc6-next-20240503-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Workqueue: events_unbound toggle_allocation_gate
RIP: 0010:csd_lock_wait kernel/smp.c:311 [inline]
RIP: 0010:smp_call_function_many_cond+0x1899/0x2a00 kernel/smp.c:855
Code: 89 e6 83 e6 01 31 ff e8 e5 ef 0b 00 41 83 e4 01 49 bc 00 00 00 00 00 fc ff df 75 07 e8 90 eb 0b 00 eb 38 f3 90 42 0f b6 04 23 <84> c0 75 11 41 f7 45 00 01 00 00 00 74 1e e8 74 eb 0b 00 eb e4 44
RSP: 0018:ffffc9000abf76e0 EFLAGS: 00000293
RAX: 0000000000000000 RBX: 1ffff110172a88a9 RCX: ffff88802b56bc00
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc9000abf78e0 R08: ffffffff818a2a3b R09: 1ffffffff25f54b0
R10: dffffc0000000000 R11: fffffbfff25f54b1 R12: dffffc0000000000
R13: ffff8880b9544548 R14: ffff8880b943f900 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000080 CR3: 000000000e132000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 </IRQ>
 <TASK>
 on_each_cpu_cond_mask+0x3f/0x80 kernel/smp.c:1023
 on_each_cpu include/linux/smp.h:71 [inline]
 text_poke_sync arch/x86/kernel/alternative.c:2069 [inline]
 text_poke_bp_batch+0x352/0xb30 arch/x86/kernel/alternative.c:2279
 text_poke_flush arch/x86/kernel/alternative.c:2470 [inline]
 text_poke_finish+0x30/0x50 arch/x86/kernel/alternative.c:2477
 arch_jump_label_transform_apply+0x1c/0x30 arch/x86/kernel/jump_label.c:146
 static_key_enable_cpuslocked+0x136/0x260 kernel/jump_label.c:205
 static_key_enable+0x1a/0x20 kernel/jump_label.c:218
 toggle_allocation_gate+0xb5/0x250 mm/kfence/core.c:826
 process_one_work kernel/workqueue.c:3231 [inline]
 process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3312
 worker_thread+0x86d/0xd70 kernel/workqueue.c:3393
 kthread+0x2f0/0x390 kernel/kthread.c:389
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/05/05 22:25 linux-next 9221b2819b8a 610f2a54 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: rcu detected stall in evdev_write
* Struck through repros no longer work on HEAD.