INFO: rcu detected stall in ieee80211_handle_queued

Kernel	Title	Rank 🛈	Repro	Cause bisect	Count	Last	Reported	Patched	Status
upstream	INFO: rcu detected stall in ieee80211_handle_queued_frames wireless	1	C	error	596	9h19m	493d	0/29	upstream: reported C repro on 2024/06/15 21:07
linux-5.15	INFO: rcu detected stall in ieee80211_handle_queued_frames	1			1	250d	250d	0/3	auto-obsoleted due to no activity on 2025/05/24 12:07
linux-6.1	INFO: rcu detected stall in ieee80211_handle_queued_frames (2)	1			1	270d	270d	0/3	auto-obsoleted due to no activity on 2025/05/04 02:50
linux-6.6	INFO: rcu detected stall in ieee80211_handle_queued_frames	1			1	94d	94d	0/2	upstream: reported on 2025/07/19 16:58
linux-6.1	INFO: rcu detected stall in ieee80211_handle_queued_frames	1			4	401d	421d	0/3	auto-obsoleted due to no activity on 2024/12/24 22:17

rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (1 GPs behind) idle=563/1/0x4000000000000000 softirq=31454/31456 fqs=5243 
	(t=10501 jiffies g=45045 q=582)
NMI backtrace for cpu 0
CPU: 0 PID: 11610 Comm: syz.9.1840 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
Call Trace:
 <IRQ>
 dump_stack_lvl+0x168/0x230 lib/dump_stack.c:106
 nmi_cpu_backtrace+0x397/0x3d0 lib/nmi_backtrace.c:111
 nmi_trigger_cpumask_backtrace+0x163/0x280 lib/nmi_backtrace.c:62
 trigger_single_cpu_backtrace include/linux/nmi.h:166 [inline]
 rcu_dump_cpu_stacks+0x22f/0x380 kernel/rcu/tree_stall.h:349
 print_cpu_stall+0x31d/0x5f0 kernel/rcu/tree_stall.h:633
 check_cpu_stall kernel/rcu/tree_stall.h:727 [inline]
 rcu_pending kernel/rcu/tree.c:3936 [inline]
 rcu_sched_clock_irq+0x6d8/0x1110 kernel/rcu/tree.c:2619
 update_process_times+0x193/0x200 kernel/time/timer.c:1818
 tick_sched_handle kernel/time/tick-sched.c:254 [inline]
 tick_sched_timer+0x37d/0x560 kernel/time/tick-sched.c:1473
 __run_hrtimer kernel/time/hrtimer.c:1685 [inline]
 __hrtimer_run_queues+0x4fe/0xc40 kernel/time/hrtimer.c:1749
 hrtimer_interrupt+0x3bb/0x8d0 kernel/time/hrtimer.c:1811
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1097 [inline]
 __sysvec_apic_timer_interrupt+0x137/0x4a0 arch/x86/kernel/apic/apic.c:1114
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
 sysvec_apic_timer_interrupt+0x4d/0xc0 arch/x86/kernel/apic/apic.c:1108
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:should_resched arch/x86/include/asm/preempt.h:103 [inline]
RIP: 0010:__local_bh_enable_ip+0x132/0x1b0 kernel/softirq.c:408
Code: 8a e8 82 cc 60 08 65 66 8b 05 ca 25 bb 7e 66 85 c0 75 54 bf 01 00 00 00 e8 9b fe 08 00 e8 e6 74 35 00 fb 65 8b 05 76 fc b9 7e <85> c0 75 05 e8 25 07 b8 ff 48 c7 04 24 0e 36 e0 45 4b c7 04 37 00
RSP: 0018:ffffc90000007560 EFLAGS: 00000286
RAX: 0000000000000101 RBX: 0000000000000201 RCX: ea489d91a40eed00
RDX: dffffc0000000000 RSI: ffffffff8a0b1820 RDI: ffffffff8a59a4c0
RBP: ffffc900000075f0 R08: dffffc0000000000 R09: ffffed1017207662
R10: ffffed1017207662 R11: 1ffff11017207661 R12: ffffffff89399556
R13: dffffc0000000000 R14: dffffc0000000000 R15: 1ffff92000000eac
 spin_unlock_bh include/linux/spinlock.h:408 [inline]
 ieee80211_rx_handlers+0x8406/0x8470 net/mac80211/rx.c:3967
 ieee80211_invoke_rx_handlers net/mac80211/rx.c:3989 [inline]
 ieee80211_prepare_and_rx_handle+0x1d8e/0x5250 net/mac80211/rx.c:4703
 __ieee80211_rx_handle_packet net/mac80211/rx.c:4863 [inline]
 ieee80211_rx_list+0x1ba1/0x2680 net/mac80211/rx.c:4986
 ieee80211_rx_napi+0x15d/0x360 net/mac80211/rx.c:5009
 ieee80211_rx include/net/mac80211.h:4573 [inline]
 ieee80211_handle_queued_frames+0x105/0x1b0 net/mac80211/main.c:237
 tasklet_action_common+0x298/0x400 kernel/softirq.c:806
 handle_softirqs+0x328/0x820 kernel/softirq.c:576
 __do_softirq kernel/softirq.c:610 [inline]
 invoke_softirq kernel/softirq.c:450 [inline]
 __irq_exit_rcu+0x12f/0x220 kernel/softirq.c:659
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:671
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
 sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1108
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:finish_lock_switch+0x134/0x280 kernel/sched/core.c:4804
Code: be ff ff ff ff e8 7c bd 55 08 85 c0 74 4a 4d 85 ff 75 66 0f 1f 44 00 00 48 89 df e8 36 28 5f 08 e8 a1 74 2a 00 fb 48 83 c4 08 <5b> 41 5c 41 5d 41 5e 41 5f 5d c3 48 89 df e8 d9 0f fe ff 43 80 3c
RSP: 0018:ffffc9000326f908 EFLAGS: 00000282
RAX: ea489d91a40eed00 RBX: ffff8880b903a340 RCX: ea489d91a40eed00
RDX: dffffc0000000000 RSI: ffffffff8a0b1820 RDI: ffffffff8a59a4c0
RBP: 1ffff11017207613 R08: dffffc0000000000 R09: ffffed1017207662
R10: ffffed1017207662 R11: 1ffff11017207661 R12: 1ffff110172075c1
R13: dffffc0000000000 R14: ffff8880b903ae08 R15: 0000000000000000
 finish_task_switch+0x12f/0x640 kernel/sched/core.c:4921
 context_switch kernel/sched/core.c:5052 [inline]
 __schedule+0x11c3/0x4390 kernel/sched/core.c:6395
 preempt_schedule_irq+0xb1/0x150 kernel/sched/core.c:6799
 irqentry_exit+0x63/0x70 kernel/entry/common.c:432
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:cpumask_next+0x2/0xd0 lib/cpumask.c:18
Code: ad fd ff ff 44 89 f1 80 e1 07 38 c1 0f 8c cb fd ff ff 4c 89 f7 e8 de c1 c0 fd e9 be fd ff ff 00 00 cc cc 00 00 cc cc 00 41 56 <53> 50 48 89 f3 41 89 fe e8 91 59 7c fd bf ff ff ff ff 44 89 f6 e8
RSP: 0018:ffffc9000326fcf8 EFLAGS: 00000293
RAX: ffffffff81a7219d RBX: 0000000000000022 RCX: ffff888028f25940
RDX: 0000000000000000 RSI: ffffffff8d6995b8 RDI: 00000000ffffffff
RBP: 0000000000000035 R08: dffffc0000000000 R09: fffff5200064df91
R10: fffff5200064df91 R11: 1ffff9200064df90 R12: 0000000000000035
R13: dffffc0000000000 R14: 0000000000034854 R15: ffff8881425eae00
 pcpu_alloc+0xf25/0x1770 mm/percpu.c:1882
 packet_alloc_pending net/packet/af_packet.c:1246 [inline]
 packet_create+0x192/0x760 net/packet/af_packet.c:3373
 __sock_create+0x47b/0x900 net/socket.c:1486
 sock_create net/socket.c:1542 [inline]
 __sys_socket+0xe2/0x170 net/socket.c:1584
 __do_sys_socket net/socket.c:1593 [inline]
 __se_sys_socket net/socket.c:1591 [inline]
 __x64_sys_socket+0x76/0x80 net/socket.c:1591
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fb2d3faeec9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fb2d2216038 EFLAGS: 00000246 ORIG_RAX: 0000000000000029
RAX: ffffffffffffffda RBX: 00007fb2d4205fa0 RCX: 00007fb2d3faeec9
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000011
RBP: 00007fb2d4031f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fb2d4206038 R14: 00007fb2d4205fa0 R15: 00007ffef95dcad8
 </TASK>

Time	Kernel	Commit	Syzkaller	Config	Log	Report	VM info	Assets (help?)	Manager	Title
2025/10/11 17:33	linux-5.15.y	29e53a5b1c4f	ff1712fe	.config	console log	report	info	[disk image] [vmlinux] [kernel image]	ci2-linux-5-15-kasan-perf	INFO: rcu detected stall in ieee80211_handle_queued_frames
2025/10/05 20:40	linux-5.15.y	29e53a5b1c4f	49379ee0	.config	console log	report	info	[disk image] [vmlinux] [kernel image]	ci2-linux-5-15-kasan-perf	INFO: rcu detected stall in ieee80211_handle_queued_frames
2025/09/13 21:40	linux-5.15.y	43bb85222e53	e2beed91	.config	console log	report	info	[disk image] [vmlinux] [kernel image]	ci2-linux-5-15-kasan-perf	INFO: rcu detected stall in ieee80211_handle_queued_frames
2025/08/28 08:46	linux-5.15.y	c79648372d02	e12e5ba4	.config	console log	report	info	[disk image] [vmlinux] [kernel image]	ci2-linux-5-15-kasan-perf	INFO: rcu detected stall in ieee80211_handle_queued_frames