rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 1-...!: (1 GPs behind) idle=dce4/1/0x4000000000000000 softirq=14765/14766 fqs=0
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P2948/1:b..l P6902/1:b..l
rcu: (detected by 0, t=10505 jiffies, g=20069, q=430 ncpus=2)
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 6851 Comm: syz.4.352 Not tainted 6.11.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
RIP: 0010:__lock_acquire+0x1b9/0x3cb0 kernel/locking/lockdep.c:5043
Code: 00 00 00 00 00 fc ff df 0f b6 0c 01 48 c7 c0 60 c1 f0 94 83 e0 07 83 c0 03 38 c8 7c 08 84 c9 0f 85 88 2c 00 00 83 7c 24 08 2f <8b> 05 81 97 88 13 76 08 85 c0 0f 84 d1 13 00 00 49 8d b7 e0 0a 00
RSP: 0018:ffffc90000a18ab0 EFLAGS: 00000097
RAX: 0000000000000003 RBX: 0000000000000001 RCX: 0000000000000004
RDX: ffffffff9462db20 RSI: 1ffff92000143168 RDI: ffffffff8e863f48
RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff9012f91f R11: 0000000000000000 R12: ffffffff8e863f40
R13: 0000000000000000 R14: 0000000000000000 R15: ffff88802893bc00
FS: 0000000000000000(0000) GS:ffff8880b9300000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055555af64808 CR3: 000000000db7c000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
lock_acquire kernel/locking/lockdep.c:5759 [inline]
lock_acquire+0x1b1/0x560 kernel/locking/lockdep.c:5724
debug_objects_fill_pool lib/debugobjects.c:615 [inline]
debug_object_activate+0x14c/0x540 lib/debugobjects.c:705
debug_hrtimer_activate kernel/time/hrtimer.c:423 [inline]
debug_activate kernel/time/hrtimer.c:478 [inline]
enqueue_hrtimer+0x25/0x3c0 kernel/time/hrtimer.c:1085
__run_hrtimer kernel/time/hrtimer.c:1706 [inline]
__hrtimer_run_queues+0xaac/0xcc0 kernel/time/hrtimer.c:1753
hrtimer_interrupt+0x31b/0x800 kernel/time/hrtimer.c:1815
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline]
__sysvec_apic_timer_interrupt+0x10f/0x450 arch/x86/kernel/apic/apic.c:1049
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
sysvec_apic_timer_interrupt+0x90/0xb0 arch/x86/kernel/apic/apic.c:1043
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:pvclock_scale_delta arch/x86/include/asm/pvclock.h:53 [inline]
RIP: 0010:__pvclock_read_cycles arch/x86/include/asm/pvclock.h:86 [inline]
RIP: 0010:__pvclock_clocksource_read arch/x86/kernel/pvclock.c:77 [inline]
RIP: 0010:pvclock_clocksource_read_nowd+0x96/0x100 arch/x86/kernel/pvclock.c:120
Code: 17 48 8b 05 4c 9c 14 08 48 39 c8 73 27 f0 48 0f b1 0d 3e 9c 14 08 75 f0 48 83 c4 10 48 89 c8 5b 5d 41 5c c3 cc cc cc cc f7 d9 <83> f9 3f 7f 0a 48 d3 e8 eb a3 48 89 c1 eb df 48 63 d1 48 89 c6 48
RSP: 0018:ffffc9000308f1c0 EFLAGS: 00000213
RAX: 0000009c5f1a5608 RBX: ffffffff93259040 RCX: 0000000000000001
RDX: 00000000ffffffff RSI: ffffffff81f02f01 RDI: ffffffff93259040
RBP: 00000000e8b3fb1d R08: 0000000000000000 R09: fffff940002ae9fe
R10: ffffea0001574ff7 R11: 0000000000000000 R12: 0000000000000006
R13: dffffc0000000000 R14: 0000000000000000 R15: ffffea0001574fc0
kvm_sched_clock_read+0x11/0x20 arch/x86/kernel/kvmclock.c:91
local_clock_noinstr+0xd/0xe0 kernel/sched/clock.c:301
local_clock+0x10/0x30 kernel/sched/clock.c:315
__reset_page_owner+0x26/0x400 mm/page_owner.c:288
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1094 [inline]
free_unref_folios+0x9e9/0x1390 mm/page_alloc.c:2660
folios_put_refs+0x560/0x760 mm/swap.c:1039
folio_batch_release include/linux/pagevec.h:101 [inline]
shmem_undo_range+0x5a1/0x1160 mm/shmem.c:1023
shmem_truncate_range mm/shmem.c:1132 [inline]
shmem_evict_inode+0x3a3/0xba0 mm/shmem.c:1260
evict+0x398/0x8c0 fs/inode.c:704
iput_final fs/inode.c:1838 [inline]
iput.part.0+0x5a8/0x7f0 fs/inode.c:1864
iput+0x5c/0x80 fs/inode.c:1854
dentry_unlink_inode+0x29c/0x480 fs/dcache.c:407
__dentry_kill+0x1d0/0x600 fs/dcache.c:610
dput.part.0+0x4b1/0x9b0 fs/dcache.c:852
dput+0x1f/0x30 fs/dcache.c:842
__fput+0x54e/0xbb0 fs/file_table.c:430
task_work_run+0x14e/0x250 kernel/task_work.c:228
exit_task_work include/linux/task_work.h:40 [inline]
do_exit+0xaa3/0x2bb0 kernel/exit.c:882
do_group_exit+0xd3/0x2a0 kernel/exit.c:1031
get_signal+0x25fd/0x2770 kernel/signal.c:2917
arch_do_signal_or_restart+0x90/0x7e0 arch/x86/kernel/signal.c:310
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+0x150/0x2a0 kernel/entry/common.c:218
do_syscall_64+0xda/0x250 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd3d8179e79
Code: Unable to access opcode bytes at 0x7fd3d8179e4f.
RSP: 002b:00007fd3d8fdf038 EFLAGS: 00000246 ORIG_RAX: 000000000000012b
RAX: 0000000000010106 RBX: 00007fd3d8315f80 RCX: 00007fd3d8179e79
RDX: 0000000000010106 RSI: 00000000200000c0 RDI: 0000000000000006
RBP: 00007fd3d81e793e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fd3d8315f80 R15: 00007ffdda171818
task:syz.3.301 state:R running task stack:27024 pid:6902 tgid:6902 ppid:6600 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0xe37/0x5490 kernel/sched/core.c:6529
preempt_schedule_common+0x44/0xc0 kernel/sched/core.c:6708
preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk.S:12
__raw_spin_unlock include/linux/spinlock_api_smp.h:143 [inline]
_raw_spin_unlock+0x3e/0x50 kernel/locking/spinlock.c:186
spin_unlock include/linux/spinlock.h:391 [inline]
zap_pte_range mm/memory.c:1688 [inline]
zap_pmd_range mm/memory.c:1736 [inline]
zap_pud_range mm/memory.c:1765 [inline]
zap_p4d_range mm/memory.c:1786 [inline]
unmap_page_range+0xbb8/0x3c10 mm/memory.c:1807
unmap_single_vma+0x194/0x2b0 mm/memory.c:1853
unmap_vmas+0x22f/0x490 mm/memory.c:1897
exit_mmap+0x1b8/0xb20 mm/mmap.c:3412
__mmput+0x12a/0x480 kernel/fork.c:1345
mmput+0x62/0x70 kernel/fork.c:1367
exit_mm kernel/exit.c:571 [inline]
do_exit+0x9bf/0x2bb0 kernel/exit.c:869
do_group_exit+0xd3/0x2a0 kernel/exit.c:1031
get_signal+0x25fd/0x2770 kernel/signal.c:2917
arch_do_signal_or_restart+0x90/0x7e0 arch/x86/kernel/signal.c:310
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+0x150/0x2a0 kernel/entry/common.c:218
do_syscall_64+0xda/0x250 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fb46c779e79
RSP: 002b:00007ffef47a05e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: 0000000000000000 RBX: 00000000000400ab RCX: 00007fb46c779e79
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fb46c915f8c
RBP: 00007fb46c915f8c R08: 00007fb46c915f80 R09: 00007ffef47a08cf
R10: 00007ffef47a06e0 R11: 0000000000000246 R12: 0000000000000032
R13: 00007ffef47a06e0 R14: 00007ffef47a0700 R15: 0000000000040079
task:kworker/u8:12 state:R running task stack:24816 pid:2948 tgid:2948 ppid:2 flags:0x00004000
Workqueue: events_unbound cfg80211_wiphy_work
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0xe37/0x5490 kernel/sched/core.c:6529
preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:6851
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_cmp4+0x8/0x20 kernel/kcov.c:287
Code: bf 02 00 00 00 e9 18 ff ff ff 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 48 8b 0c 24 <89> f2 89 fe bf 04 00 00 00 e9 ea fe ff ff 66 2e 0f 1f 84 00 00 00
RSP: 0018:ffffc90009c67948 EFLAGS: 00000246
RAX: 0000000000000003 RBX: 0000000000000001 RCX: ffffffff8a8c8507
RDX: 0000000000000007 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000001 R08: 0000000000000006 R09: 0000000000000001
R10: 000000000000000c R11: 0000000000000000 R12: 0000000000000000
R13: dffffc0000000000 R14: ffff88807dc2dc44 R15: 0000000000000000
ieee80211_sta_get_rates+0x357/0x650 net/mac80211/util.c:1552
ieee80211_update_sta_info net/mac80211/ibss.c:989 [inline]
ieee80211_rx_bss_info net/mac80211/ibss.c:1098 [inline]
ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1579 [inline]
ieee80211_ibss_rx_queued_mgmt+0x1039/0x2f40 net/mac80211/ibss.c:1606
ieee80211_iface_process_skb net/mac80211/iface.c:1588 [inline]
ieee80211_iface_work+0xc0b/0xf00 net/mac80211/iface.c:1642
cfg80211_wiphy_work+0x445/0x760 net/wireless/core.c:440
process_one_work+0x9c5/0x1b40 kernel/workqueue.c:3231
process_scheduled_works kernel/workqueue.c:3312 [inline]
worker_thread+0x6c8/0xed0 kernel/workqueue.c:3389
kthread+0x2c1/0x3a0 kernel/kthread.c:389
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 10505 jiffies! g20069 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:27680 pid:17 tgid:17 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0xe37/0x5490 kernel/sched/core.c:6529
__schedule_loop kernel/sched/core.c:6606 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6621
schedule_timeout+0x136/0x2a0 kernel/time/timer.c:2581
rcu_gp_fqs_loop+0x1eb/0xb00 kernel/rcu/tree.c:2034
rcu_gp_kthread+0x271/0x380 kernel/rcu/tree.c:2236
kthread+0x2c1/0x3a0 kernel/kthread.c:389
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:
CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted 6.11.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
RIP: 0010:native_irq_disable arch/x86/include/asm/irqflags.h:37 [inline]
RIP: 0010:arch_local_irq_disable arch/x86/include/asm/irqflags.h:92 [inline]
RIP: 0010:acpi_safe_halt+0x1a/0x20 drivers/acpi/processor_idle.c:112
Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 65 48 8b 05 88 a3 f2 74 48 8b 00 a8 08 75 0c 66 90 0f 00 2d 18 ce aa 00 fb f4 c3 cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffffff8da07d70 EFLAGS: 00000246
RAX: 0000000000004000 RBX: 0000000000000001 RCX: ffffffff8b111a99
RDX: 0000000000000001 RSI: ffff8880196ff800 RDI: ffff8880196ff864
RBP: ffff8880196ff864 R08: 0000000000000001 R09: ffffed1017246fd9
R10: ffff8880b9237ecb R11: 0000000000000000 R12: ffff88801cbc2800
R13: ffffffff8e952a80 R14: 0000000000000000 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff8880b9200000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb46d4ccf98 CR3: 000000007e002000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
acpi_idle_enter+0xc5/0x160 drivers/acpi/processor_idle.c:702
cpuidle_enter_state+0x85/0x500 drivers/cpuidle/cpuidle.c:267
cpuidle_enter+0x4e/0xa0 drivers/cpuidle/cpuidle.c:388
cpuidle_idle_call kernel/sched/idle.c:230 [inline]
do_idle+0x313/0x3f0 kernel/sched/idle.c:326
cpu_startup_entry+0x4f/0x60 kernel/sched/idle.c:424
rest_init+0x16b/0x2b0 init/main.c:747
start_kernel+0x3df/0x4c0 init/main.c:1103
x86_64_start_reservations+0x18/0x30 arch/x86/kernel/head64.c:507
x86_64_start_kernel+0xb2/0xc0 arch/x86/kernel/head64.c:488
common_startup_64+0x13e/0x148