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INFO: rcu detected stall in process_one_work (4)

Status: auto-closed as invalid on 2021/12/18 04:26
Subsystems: kernel
[Documentation on labels]
First crash: 1030d, last: 1030d
Similar bugs (8)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-5.15 INFO: rcu detected stall in process_one_work 3 26d 129d 0/3 upstream: reported on 2024/03/08 03:59
upstream INFO: rcu detected stall in process_one_work (2) kernel 1 1555d 1555d 0/27 auto-closed as invalid on 2020/07/10 22:43
upstream INFO: rcu detected stall in process_one_work (8) kernel 3 208d 258d 0/27 auto-obsoleted due to no activity on 2024/03/18 23:07
upstream INFO: rcu detected stall in process_one_work kernel 8 1795d 2238d 0/27 auto-closed as invalid on 2019/11/14 14:39
upstream INFO: rcu detected stall in process_one_work (9) usb C 3 10d 42d 0/27 upstream: reported C repro on 2024/06/03 12:55
upstream INFO: rcu detected stall in process_one_work (5) kernel 1 676d 676d 0/27 auto-obsoleted due to no activity on 2022/12/07 18:00
linux-6.1 INFO: rcu detected stall in process_one_work origin:upstream C 2 14d 188d 0/3 upstream: reported C repro on 2024/01/09 18:19
upstream INFO: rcu detected stall in process_one_work (3) kernel C done done 1 1377d 1419d 15/27 fixed on 2020/11/16 12:12

Sample crash report:
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	1-....: (0 ticks this GP) idle=c7f/1/0x4000000000000000 softirq=270921/270921 fqs=5244 
	(detected by 0, t=10502 jiffies, g=524413, q=553)
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 17215 Comm: kworker/u4:6 Not tainted 5.15.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: phy3 ieee80211_iface_work
RIP: 0010:__irq_work_queue_local+0x135/0x190 kernel/irq_work.c:64
Code: 8b 48 89 ee 48 89 ef 48 89 da e8 76 7e 56 02 89 c3 31 ff 89 c6 e8 9b ff f3 ff 84 db 74 96 e8 52 f9 f3 ff e8 0d f5 a7 ff 5b 5d <41> 5c e9 44 f9 f3 ff e8 3f f9 f3 ff e8 ea 65 e7 ff eb d2 4c 89 e7
RSP: 0018:ffffc90000dc0a78 EFLAGS: 00000046
RAX: 00000000000400f6 RBX: 0000000000000001 RCX: ffffffff812a0783
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffffff5fc300
RBP: 0000000000000001 R08: 0000000000000000 R09: ffffffff8d6e48c7
R10: fffffbfff1adc918 R11: 0000000000000000 R12: 0000000000000001
R13: ffff8880b9d328f0 R14: 0000000000000000 R15: ffffe8ffffb00800
FS:  0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f431e349718 CR3: 0000000076807000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 irq_work_queue_on+0x146/0x160 kernel/irq_work.c:109
 rcu_read_unlock_special kernel/rcu/tree_plugin.h:663 [inline]
 __rcu_read_unlock+0x436/0x570 kernel/rcu/tree_plugin.h:422
 rcu_read_unlock include/linux/rcupdate.h:719 [inline]
 BPF_PROG_RUN_ARRAY include/linux/bpf.h:1270 [inline]
 trace_call_bpf+0x2f9/0x640 kernel/trace/bpf_trace.c:127
 perf_trace_run_bpf_submit+0x91/0x210 kernel/events/core.c:9652
 perf_trace_preemptirq_template+0x296/0x460 include/trace/events/preemptirq.h:14
 trace_irq_enable_rcuidle include/trace/events/preemptirq.h:40 [inline]
 trace_irq_enable_rcuidle include/trace/events/preemptirq.h:40 [inline]
 trace_hardirqs_on+0x156/0x1c0 kernel/trace/trace_preemptirq.c:44
 asm_sysvec_irq_work+0x12/0x20 arch/x86/include/asm/idtentry.h:664
RIP: 0010:get_current arch/x86/include/asm/current.h:15 [inline]
RIP: 0010:__rcu_read_unlock+0xc4/0x570 kernel/rcu/tree_plugin.h:425
Code: b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 0f b6 04 02 84 c0 74 08 3c 03 0f 8e b6 01 00 00 8b 85 d8 03 00 00 85 c0 75 54 <65> 48 8b 1c 25 40 f0 01 00 48 8d bb d4 03 00 00 48 b8 00 00 00 00
RSP: 0018:ffffc90000dc0db8 EFLAGS: 00000206
RAX: 0000000000000016 RBX: ffff8880b9d328c0 RCX: 1ffffffff1adc4a9
RDX: 0000000000000000 RSI: 0000000000000101 RDI: 0000000000000000
RBP: ffffffff8b988f80 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff817c36c2 R11: 0000000000000000 R12: 0000000000000001
R13: ffffffff85370100 R14: 0000000000000200 R15: ffffffff853669c0
 rcu_read_unlock include/linux/rcupdate.h:719 [inline]
 ieee80211_iterate_active_interfaces_atomic+0x92/0x180 net/mac80211/util.c:831
 mac80211_hwsim_beacon+0xd5/0x1a0 drivers/net/wireless/mac80211_hwsim.c:1861
 __run_hrtimer kernel/time/hrtimer.c:1685 [inline]
 __hrtimer_run_queues+0x609/0xe50 kernel/time/hrtimer.c:1749
 hrtimer_run_softirq+0x17b/0x360 kernel/time/hrtimer.c:1766
 __do_softirq+0x29b/0x9c2 kernel/softirq.c:558
 invoke_softirq kernel/softirq.c:432 [inline]
 __irq_exit_rcu+0x123/0x180 kernel/softirq.c:636
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:648
 sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1097
 </IRQ>
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:169 [inline]
RIP: 0010:_raw_spin_unlock_irq+0x25/0x40 kernel/locking/spinlock.c:202
Code: 0f 1f 44 00 00 55 48 8b 74 24 08 48 89 fd 48 83 c7 18 e8 ae bb 23 f8 48 89 ef e8 f6 31 24 f8 e8 31 92 44 f8 fb bf 01 00 00 00 <e8> b6 f2 17 f8 65 8b 05 df 4c ca 76 85 c0 74 02 5d c3 e8 cb a2 c8
RSP: 0018:ffffc90002ecfd10 EFLAGS: 00000202
RAX: 000000000131ef13 RBX: 0000000000000100 RCX: 1ffffffff1adc4a9
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001
RBP: ffff888010c69800 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff817c36c2 R11: 0000000000000000 R12: 0000000000000001
R13: ffff8880792b1810 R14: ffff88805015ae00 R15: ffff888010c69800
 process_one_work+0x8b5/0x16b0 kernel/workqueue.c:2270
 worker_thread+0x658/0x11f0 kernel/workqueue.c:2444
 kthread+0x3e5/0x4d0 kernel/kthread.c:319
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
----------------
Code disassembly (best guess):
   0:	8b 48 89             	mov    -0x77(%rax),%ecx
   3:	ee                   	out    %al,(%dx)
   4:	48 89 ef             	mov    %rbp,%rdi
   7:	48 89 da             	mov    %rbx,%rdx
   a:	e8 76 7e 56 02       	callq  0x2567e85
   f:	89 c3                	mov    %eax,%ebx
  11:	31 ff                	xor    %edi,%edi
  13:	89 c6                	mov    %eax,%esi
  15:	e8 9b ff f3 ff       	callq  0xfff3ffb5
  1a:	84 db                	test   %bl,%bl
  1c:	74 96                	je     0xffffffb4
  1e:	e8 52 f9 f3 ff       	callq  0xfff3f975
  23:	e8 0d f5 a7 ff       	callq  0xffa7f535
  28:	5b                   	pop    %rbx
  29:	5d                   	pop    %rbp
* 2a:	41 5c                	pop    %r12 <-- trapping instruction
  2c:	e9 44 f9 f3 ff       	jmpq   0xfff3f975
  31:	e8 3f f9 f3 ff       	callq  0xfff3f975
  36:	e8 ea 65 e7 ff       	callq  0xffe76625
  3b:	eb d2                	jmp    0xf
  3d:	4c 89 e7             	mov    %r12,%rdi

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2021/09/19 04:17 bpf-next e57f52b42d1f 70b76c1d .config console log report info ci-upstream-bpf-next-kasan-gce INFO: rcu detected stall in process_one_work
* Struck through repros no longer work on HEAD.