rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P12667/1:b..l P2429/1:b..l
rcu: (detected by 1, t=10503 jiffies, g=232969, q=316 ncpus=2)
task:kworker/u8:8 state:R running task stack:23104 pid:2429 tgid:2429 ppid:2 flags:0x00004000
Workqueue: events_unbound cfg80211_wiphy_work
Call Trace:
context_switch kernel/sched/core.c:5409 [inline]
__schedule+0xf15/0x5d00 kernel/sched/core.c:6746
preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7068
irqentry_exit+0x36/0x90 kernel/entry/common.c:354
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:__sanitizer_cov_trace_pc+0x18/0x60 kernel/kcov.c:203
Code: 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 65 48 8b 15 24 15 76 7e 65 8b 05 25 15 76 7e a9 00 01 ff 00 <48> 8b 34 24 74 0f f6 c4 01 74 35 8b 82 14 16 00 00 85 c0 74 2b 8b
RSP: 0018:ffffc90009547958 EFLAGS: 00000246
RAX: 0000000080000000 RBX: 0000000000000007 RCX: ffffffff8a57c117
RDX: ffff8880294fbc00 RSI: 0000000000000000 RDI: 0000000000000004
RBP: 0000000000000007 R08: 0000000000000004 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000004 R12: 0000000000000000
R13: dffffc0000000000 R14: ffff888043bd5c4c R15: 0000000000000000
ieee80211_sta_get_rates+0x361/0x650 net/mac80211/util.c:1556
ieee80211_update_sta_info net/mac80211/ibss.c:988 [inline]
ieee80211_rx_bss_info net/mac80211/ibss.c:1097 [inline]
ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1578 [inline]
ieee80211_ibss_rx_queued_mgmt+0x1039/0x2f40 net/mac80211/ibss.c:1605
ieee80211_iface_process_skb net/mac80211/iface.c:1605 [inline]
ieee80211_iface_work+0xc07/0xf00 net/mac80211/iface.c:1659
cfg80211_wiphy_work+0x255/0x330 net/wireless/core.c:437
process_one_work+0x9a9/0x1ac0 kernel/workqueue.c:3254
process_scheduled_works kernel/workqueue.c:3335 [inline]
worker_thread+0x6c8/0xf70 kernel/workqueue.c:3416
kthread+0x2c1/0x3a0 kernel/kthread.c:388
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
task:kworker/u8:5 state:R running task stack:23088 pid:12667 tgid:12667 ppid:2 flags:0x00004000
Workqueue: iou_exit io_ring_exit_work
Call Trace:
context_switch kernel/sched/core.c:5409 [inline]
__schedule+0xf15/0x5d00 kernel/sched/core.c:6746
preempt_schedule_common+0x44/0xc0 kernel/sched/core.c:6925
preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk_64.S:12
unwind_next_frame+0x1c90/0x23a0 arch/x86/kernel/unwind_orc.c:672
arch_stack_walk+0x100/0x170 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x95/0xd0 kernel/stacktrace.c:122
save_stack+0x162/0x1f0 mm/page_owner.c:156
__reset_page_owner+0x8d/0x400 mm/page_owner.c:302
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1141 [inline]
free_unref_page_prepare+0x527/0xb10 mm/page_alloc.c:2347
free_unref_page+0x33/0x3c0 mm/page_alloc.c:2487
__folio_put_small mm/swap.c:119 [inline]
__folio_put+0x166/0x1f0 mm/swap.c:142
folio_put_refs include/linux/mm.h:1526 [inline]
gup_put_folio+0x21c/0x2b0 mm/gup.c:202
unpin_user_page+0xcf/0x1e0 mm/gup.c:275
io_buffer_unmap+0xd2/0x2a0 io_uring/rsrc.c:142
__io_sqe_buffers_unregister+0xcb/0x270 io_uring/rsrc.c:778
io_ring_ctx_free io_uring/io_uring.c:2896 [inline]
io_ring_exit_work+0x76c/0x1540 io_uring/io_uring.c:3136
process_one_work+0x9a9/0x1ac0 kernel/workqueue.c:3254
process_scheduled_works kernel/workqueue.c:3335 [inline]
worker_thread+0x6c8/0xf70 kernel/workqueue.c:3416
kthread+0x2c1/0x3a0 kernel/kthread.c:388
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
rcu: rcu_preempt kthread starved for 10566 jiffies! g232969 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:27664 pid:16 tgid:16 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5409 [inline]
__schedule+0xf15/0x5d00 kernel/sched/core.c:6746
__schedule_loop kernel/sched/core.c:6823 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6838
schedule_timeout+0x136/0x2a0 kernel/time/timer.c:2582
rcu_gp_fqs_loop+0x1eb/0xb00 kernel/rcu/tree.c:1663
rcu_gp_kthread+0x271/0x380 kernel/rcu/tree.c:1862
kthread+0x2c1/0x3a0 kernel/kthread.c:388
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 28456 Comm: syz-executor.4 Not tainted 6.9.0-rc5-syzkaller-00053-ge33c4963bf53 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:rcu_is_watching+0x5/0xc0 kernel/rcu/tree.c:696
Code: e8 10 23 67 09 65 8a 05 85 ca 8f 7e 0f b6 c0 c3 cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 55 <53> 65 ff 05 3b a7 8f 7e e8 ae 22 67 09 48 c7 c3 e8 7e 03 00 83 f8
RSP: 0018:ffffc9000337fdc0 EFLAGS: 00000047
RAX: 0000000000000001 RBX: 0000000000000000 RCX: ffffffff8194da36
RDX: fffffbfff1f3e98b RSI: 0000000000000008 RDI: ffffffff8f9f4c50
RBP: ffffffff81337e38 R08: 0000000000000000 R09: fffffbfff1f3e98a
R10: ffffffff8f9f4c57 R11: 0000000000000000 R12: 000000000003d78c
R13: 0000000000000000 R14: 0000000000000000 R15: ffff8880290bbc00
FS: 00007fb9d2a3e6c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2d943000 CR3: 0000000049604000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
trace_irq_disable.constprop.0+0xe4/0x130 include/trace/events/preemptirq.h:36
__local_bh_enable_ip+0xcd/0x120 kernel/softirq.c:364
handle_signal arch/x86/kernel/signal.c:283 [inline]
arch_do_signal_or_restart+0x5b9/0x7e0 arch/x86/kernel/signal.c:312
exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0x14a/0x2a0 kernel/entry/common.c:218
do_syscall_64+0xdc/0x260 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fb9d1ca5630
Code: 83 c0 16 83 e0 f7 74 12 50 48 8d 3d 3a 9a 04 00 e8 35 78 fa ff 0f 1f 44 00 00 c3 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 <83> ff 21 74 0b c3 66 2e 0f 1f 84 00 00 00 00 00 55 53 48 89 f3 48
RSP: 002b:00007fb9d2a3dbb8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: 0000000000000000 RBX: 00007fb9d1dac058 RCX: 00007fb9d1c7dea9
RDX: 00007fb9d2a3dbc0 RSI: 00007fb9d2a3dcf0 RDI: 0000000000000021
RBP: 00007fb9d1dac050 R08: 00007fb9d2a3e6c0 R09: 00007fb9d2a3e6c0
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fb9d1dac05c
R13: 000000000000006e R14: 00007ffe400ce860 R15: 00007ffe400ce948