INFO: rcu detected stall in mac80211_hwsim

Kernel	Title	Rank 🛈	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
upstream	INFO: rcu detected stall in mac80211_hwsim_beacon kernel	1	C	error	inconclusive	1904	1221d	1801d	0/29	closed as invalid on 2022/10/12 18:37
linux-5.15	INFO: rcu detected stall in mac80211_hwsim_beacon	1				1	679d	679d	0/3	auto-obsoleted due to no activity on 2024/01/28 07:17
linux-5.15	INFO: rcu detected stall in mac80211_hwsim_beacon (3)	1				3	333d	340d	0/3	auto-obsoleted due to no activity on 2025/01/08 17:17
linux-6.1	INFO: rcu detected stall in mac80211_hwsim_beacon (2)	1				1	218d	218d	0/3	auto-obsoleted due to no activity on 2025/05/03 16:43
linux-6.1	INFO: rcu detected stall in mac80211_hwsim_beacon	1				3	332d	357d	0/3	auto-obsoleted due to no activity on 2025/01/08 20:04
upstream	BUG: soft lockup in mac80211_hwsim_beacon (2) wireless	1	C	error	inconclusive	138	13d	536d	0/29	upstream: reported C repro on 2024/03/11 14:28
linux-5.15	INFO: rcu detected stall in mac80211_hwsim_beacon (2)	1				1	556d	556d	0/3	auto-obsoleted due to no activity on 2024/05/30 17:39
upstream	BUG: soft lockup in mac80211_hwsim_beacon wireless	1	syz	error	unreliable	180	1221d	1794d	0/29	auto-obsoleted due to no activity on 2023/01/21 14:41

rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-.... } 2648 jiffies s: 41901 root: 0x1/. rcu: blocking rcu_node structures (internal RCU debug): Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 7597 Comm: syz.8.727 Not tainted 6.1.148-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 RIP: 0010:lockdep_recursion_finish kernel/locking/lockdep.c:467 [inline] RIP: 0010:lock_release+0x55c/0x910 kernel/locking/lockdep.c:5684 Code: 24 10 48 8b 54 24 30 e8 32 6b 00 00 4c 8b 7c 24 18 48 c7 c7 a0 15 8c 8a e8 91 ff b2 08 b8 ff ff ff ff 65 0f c1 05 54 11 9f 7e <83> f8 01 75 75 48 c7 84 24 80 00 00 00 00 00 00 00 9c 8f 84 24 80 RSP: 0018:ffffc900000074c0 EFLAGS: 00000057 RAX: 0000000000000001 RBX: abe92a66ad81a2ce RCX: 03c3e64f70e04d00 RDX: 0000000000000003 RSI: ffffffff8a8c15a0 RDI: ffffffff8adef6a0 RBP: ffffc900000075d0 R08: dffffc0000000000 R09: fffffbfff1c3ea96 R10: fffffbfff1c3ea96 R11: 1ffffffff1c3ea95 R12: ffff888052e1a918 R13: dffffc0000000000 R14: ffff888052e1a890 R15: 1ffff92000000ea4 FS: 00007f46e246c6c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000034000 CR3: 000000005761f000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: <IRQ> __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:149 [inline] _raw_spin_unlock_irqrestore+0x6d/0x100 kernel/locking/spinlock.c:194 debug_object_activate+0x2d7/0x490 lib/debugobjects.c:716 debug_hrtimer_activate kernel/time/hrtimer.c:448 [inline] debug_activate kernel/time/hrtimer.c:503 [inline] enqueue_hrtimer+0x30/0x3f0 kernel/time/hrtimer.c:1110 __run_hrtimer kernel/time/hrtimer.c:1769 [inline] __hrtimer_run_queues+0x68e/0xd60 kernel/time/hrtimer.c:1816 hrtimer_interrupt+0x3c5/0x9c0 kernel/time/hrtimer.c:1878 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1107 [inline] __sysvec_apic_timer_interrupt+0x153/0x5a0 arch/x86/kernel/apic/apic.c:1124 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline] sysvec_apic_timer_interrupt+0x4d/0xc0 arch/x86/kernel/apic/apic.c:1118 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691 RIP: 0010:rcu_read_unlock_special+0x84/0x500 kernel/rcu/tree_plugin.h:682 Code: f1 f1 f1 00 f2 f2 f2 4a 89 04 2b 66 42 c7 44 2b 09 f3 f3 42 c6 44 2b 0b f3 65 44 8b 35 fd a7 96 7e 41 f7 c6 00 00 f0 00 74 45 <48> c7 44 24 40 0e 36 e0 45 4a c7 04 2b 00 00 00 00 66 42 c7 44 2b RSP: 0018:ffffc90000007aa0 EFLAGS: 00000206 RAX: 03c3e64f70e04d00 RBX: 1ffff92000000f5c RCX: 03c3e64f70e04d00 RDX: dffffc0000000000 RSI: ffffffff8a8c0420 RDI: ffffffff8adef6a0 RBP: ffffc90000007b90 R08: dffffc0000000000 R09: ffffed10171c6af6 R10: ffffed10171c6af6 R11: 1ffff110171c6af5 R12: 0000000000000246 R13: dffffc0000000000 R14: ffff8880b8e3b900 R15: 0000000000000001 __rcu_read_unlock+0x78/0xd0 kernel/rcu/tree_plugin.h:426 rcu_read_unlock include/linux/rcupdate.h:823 [inline] ieee80211_iterate_active_interfaces_atomic+0x156/0x170 net/mac80211/util.c:826 mac80211_hwsim_beacon+0xb7/0x1b0 drivers/net/wireless/mac80211_hwsim.c:2147 __run_hrtimer kernel/time/hrtimer.c:1752 [inline] __hrtimer_run_queues+0x554/0xd60 kernel/time/hrtimer.c:1816 hrtimer_run_softirq+0x183/0x2a0 kernel/time/hrtimer.c:1833 handle_softirqs+0x2a1/0x920 kernel/softirq.c:596 __do_softirq kernel/softirq.c:630 [inline] invoke_softirq kernel/softirq.c:470 [inline] __irq_exit_rcu+0x12f/0x220 kernel/softirq.c:679 irq_exit_rcu+0x5/0x20 kernel/softirq.c:691 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline] sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1118 </IRQ> <TASK> asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691 RIP: 0010:___slab_alloc+0x393/0x1220 mm/slub.c:3151 Code: 48 c7 44 24 70 00 00 00 00 9c 8f 44 24 70 f7 44 24 70 00 02 00 00 0f 85 de 02 00 00 f7 c5 00 02 00 00 74 01 fb 49 83 7d 18 00 <0f> 84 6c 05 00 00 48 c7 44 24 70 00 00 00 00 9c 8f 44 24 70 48 8b RSP: 0018:ffffc90004c874b0 EFLAGS: 00000286 RAX: 03c3e64f70e04d00 RBX: ffff888017442140 RCX: 03c3e64f70e04d00 RDX: dffffc0000000000 RSI: ffffffff8a8c0420 RDI: ffffffff8adef6a0 RBP: 0000000000000246 R08: dffffc0000000000 R09: ffffed10171c6af6 R10: ffffed10171c6af6 R11: 1ffff110171c6af5 R12: ffff888052e19dc0 R13: ffff8880b8e3e7e0 R14: ffffffff7fff0000 R15: ffff8880b8e3e800 __slab_alloc mm/slub.c:3279 [inline] slab_alloc_node mm/slub.c:3364 [inline] __kmem_cache_alloc_node+0x1a0/0x260 mm/slub.c:3437 __do_kmalloc_node mm/slab_common.c:935 [inline] __kmalloc+0xa0/0x240 mm/slab_common.c:949 kmalloc include/linux/slab.h:568 [inline] tomoyo_realpath_from_path+0xdf/0x5d0 security/tomoyo/realpath.c:251 tomoyo_get_realpath security/tomoyo/file.c:151 [inline] tomoyo_check_open_permission+0x1aa/0x380 security/tomoyo/file.c:771 security_file_open+0x5e/0xa0 security/security.c:1681 do_dentry_open+0x305/0x10d0 fs/open.c:869 do_open fs/namei.c:3626 [inline] path_openat+0x25c6/0x2e70 fs/namei.c:3783 do_filp_open+0x1c1/0x3c0 fs/namei.c:3810 do_sys_openat2+0x142/0x490 fs/open.c:1318 do_sys_open fs/open.c:1334 [inline] __do_sys_openat fs/open.c:1350 [inline] __se_sys_openat fs/open.c:1345 [inline] __x64_sys_openat+0x135/0x160 fs/open.c:1345 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f46e158ebe9 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:00007f46e246c038 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007f46e17b6090 RCX: 00007f46e158ebe9 RDX: 00000000000026e1 RSI: 0000200000000080 RDI: ffffffffffffff9c RBP: 00007f46e1611e19 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f46e17b6128 R14: 00007f46e17b6090 R15: 00007ffe316f4ed8 </TASK>

Crashes (1):
Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Assets (help?)	Manager	Title
2025/08/20 14:13	linux-6.1.y	0bc96de781b4	79512909	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci2-linux-6-1-kasan-perf	INFO: rcu detected stall in mac80211_hwsim_beacon

Crashes (1):

Assets (help?)