rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P5480/1:b..l P19259/1:b..l P19766/1:b..l
rcu: (detected by 0, t=10502 jiffies, g=209833, q=856 ncpus=2)
task:syz.5.2217 state:R running task stack:24672 pid:19766 tgid:19766 ppid:18179 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0x1800/0x4a60 kernel/sched/core.c:6529
preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:6851
irqentry_exit+0x5e/0x90 kernel/entry/common.c:354
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:unwind_next_frame+0x1e77/0x2a00 arch/x86/kernel/unwind_orc.c:672
Code: eb 0c e8 0c 47 52 00 eb 05 e8 05 47 52 00 bf 01 00 00 00 e8 7b bb 21 00 65 8b 1d 4c 91 c2 7e 31 ff 89 de e8 2b 4b 52 00 85 db <0f> 84 9d 02 00 00 e8 de 46 52 00 b0 01 e9 1d fd ff ff 80 3d 34 fb
RSP: 0018:ffffc90004457148 EFLAGS: 00000286
RAX: 0000000000000000 RBX: 0000000080000000 RCX: 0000000000000001
RDX: ffff888028a4da00 RSI: 0000000080000000 RDI: 0000000000000000
RBP: ffffc90004457220 R08: ffffffff814145c5 R09: ffffffff814140bf
R10: 0000000000000003 R11: ffff888028a4da00 R12: ffffc90004457620
R13: dffffc0000000000 R14: ffffc90004450000 R15: ffffc90004457628
arch_stack_walk+0x151/0x1b0 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122
save_stack+0xfb/0x1f0 mm/page_owner.c:156
__reset_page_owner+0x76/0x430 mm/page_owner.c:297
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1101 [inline]
free_unref_folios+0x103a/0x1b00 mm/page_alloc.c:2667
folios_put_refs+0x76e/0x860 mm/swap.c:1039
free_pages_and_swap_cache+0x2ea/0x690 mm/swap_state.c:332
__tlb_batch_free_encoded_pages mm/mmu_gather.c:136 [inline]
tlb_batch_pages_flush mm/mmu_gather.c:149 [inline]
tlb_flush_mmu_free mm/mmu_gather.c:366 [inline]
tlb_flush_mmu+0x3a3/0x680 mm/mmu_gather.c:373
tlb_finish_mmu+0xd4/0x200 mm/mmu_gather.c:465
exit_mmap+0x44f/0xc80 mm/mmap.c:3425
__mmput+0x115/0x390 kernel/fork.c:1345
exit_mm+0x220/0x310 kernel/exit.c:571
do_exit+0x9b2/0x27f0 kernel/exit.c:869
do_group_exit+0x207/0x2c0 kernel/exit.c:1031
__do_sys_exit_group kernel/exit.c:1042 [inline]
__se_sys_exit_group kernel/exit.c:1040 [inline]
__x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1040
x64_sys_call+0x2634/0x2640 arch/x86/include/generated/asm/syscalls_64.h:232
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f5e35d7def9
RSP: 002b:00007fffc1f0c4a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f5e35d7def9
RDX: 0000000000000064 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007fffc1f0c4fc R08: 00007fffc1f0c58f R09: 000000000020d62a
R10: 0000000000000006 R11: 0000000000000246 R12: 0000000000000032
R13: 000000000020d62a R14: 000000000020d237 R15: 00007fffc1f0c550
task:syz-executor state:R running task stack:20656 pid:19259 tgid:19259 ppid:19239 flags:0x00000000
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0x1800/0x4a60 kernel/sched/core.c:6529
preempt_schedule_common+0x84/0xd0 kernel/sched/core.c:6708
preempt_schedule+0xe1/0xf0 kernel/sched/core.c:6732
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]
copy_pte_range mm/memory.c:1191 [inline]
copy_pmd_range+0x7ad5/0x8500 mm/memory.c:1252
copy_pud_range mm/memory.c:1289 [inline]
copy_p4d_range mm/memory.c:1313 [inline]
copy_page_range+0x99f/0xe90 mm/memory.c:1411
dup_mmap kernel/fork.c:749 [inline]
dup_mm kernel/fork.c:1672 [inline]
copy_mm+0x11ea/0x1f30 kernel/fork.c:1721
copy_process+0x187a/0x3dc0 kernel/fork.c:2374
kernel_clone+0x226/0x8f0 kernel/fork.c:2781
__do_sys_clone kernel/fork.c:2924 [inline]
__se_sys_clone kernel/fork.c:2908 [inline]
__x64_sys_clone+0x258/0x2a0 kernel/fork.c:2908
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f29b5974753
RSP: 002b:00007ffcc89a3608 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f29b5974753
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
R10: 00005555581997d0 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000020e0cf R14: 000000000020dd64 R15: 00007ffcc89a3790
task:kworker/u8:19 state:R running task stack:19984 pid:5480 tgid:5480 ppid:2 flags:0x00004000
Workqueue: events_unbound cfg80211_wiphy_work
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0x1800/0x4a60 kernel/sched/core.c:6529
preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:6851
irqentry_exit+0x5e/0x90 kernel/entry/common.c:354
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:ieee80211_sta_get_rates+0x3ed/0x660 net/mac80211/util.c:1550
Code: e8 e8 a0 5d f6 49 bc 00 00 00 00 00 fc ff df 4c 8b 74 24 28 44 39 7c 24 68 75 3d e9 03 01 00 00 e8 c8 a0 5d f6 44 39 7c 24 68 <75> 2c e9 f2 00 00 00 e8 b7 a0 5d f6 48 8b 54 24 30 48 89 d0 48 c1
RSP: 0018:ffffc90002e8f798 EFLAGS: 00000206
RAX: ffffffff8b35ebe8 RBX: 000000000000005a RCX: ffff88802ca90000
RDX: 0000000000000000 RSI: 000000000000005a RDI: 000000000000000a
RBP: 000000000000000a R08: ffffffff8b35eb7c R09: 1ffffffff2030ebd
R10: dffffc0000000000 R11: fffffbfff2030ebe R12: dffffc0000000000
R13: 000000000000000f R14: ffff88805dbd30d0 R15: 0000000000000005
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+0x11e1/0x2d70 net/mac80211/ibss.c:1606
ieee80211_iface_process_skb net/mac80211/iface.c:1588 [inline]
ieee80211_iface_work+0x8a5/0xf20 net/mac80211/iface.c:1642
cfg80211_wiphy_work+0x2dd/0x490 net/wireless/core.c:440
process_one_work kernel/workqueue.c:3231 [inline]
process_scheduled_works+0xa2e/0x1830 kernel/workqueue.c:3312
worker_thread+0x86d/0xd10 kernel/workqueue.c:3389
kthread+0x2f2/0x390 kernel/kthread.c:389
ret_from_fork+0x4d/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 10620 jiffies! g209833 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:24976 pid:17 tgid:17 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0x1800/0x4a60 kernel/sched/core.c:6529
__schedule_loop kernel/sched/core.c:6606 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6621
schedule_timeout+0x1be/0x310 kernel/time/timer.c:2581
rcu_gp_fqs_loop+0x2df/0x1330 kernel/rcu/tree.c:2034
rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:2236
kthread+0x2f2/0x390 kernel/kthread.c:389
ret_from_fork+0x4d/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-rc7-syzkaller-00021-g7c6a3a65ace7 #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+0x21/0x30 drivers/acpi/processor_idle.c:112
Code: 90 90 90 90 90 90 90 90 90 65 48 8b 04 25 00 d7 03 00 48 f7 00 08 00 00 00 75 10 eb 07 0f 00 2d b5 73 b0 00 f3 0f 1e fa fb f4 e9 f4 6f 36 00 66 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90
RSP: 0018:ffffffff8e607ca8 EFLAGS: 00000246
RAX: ffffffff8e694680 RBX: ffff88801da8d864 RCX: 0000000000ccd329
RDX: 0000000000000001 RSI: ffff88801da8d800 RDI: ffff88801da8d864
RBP: 000000000003a678 R08: ffff8880b8837c7b R09: 1ffff11017106f8f
R10: dffffc0000000000 R11: ffffffff8bb9ccc0 R12: ffff888021b79800
R13: 0000000000000000 R14: 0000000000000001 R15: ffffffff8f0e4220
FS: 0000000000000000(0000) GS:ffff8880b8800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6720324866 CR3: 0000000028cf4000 CR4: 0000000000350ef0
Call Trace:
acpi_idle_enter+0xe4/0x140 drivers/acpi/processor_idle.c:702
cpuidle_enter_state+0x114/0x480 drivers/cpuidle/cpuidle.c:267
cpuidle_enter+0x5d/0xa0 drivers/cpuidle/cpuidle.c:388
call_cpuidle kernel/sched/idle.c:155 [inline]
cpuidle_idle_call kernel/sched/idle.c:230 [inline]
do_idle+0x375/0x5d0 kernel/sched/idle.c:326
cpu_startup_entry+0x42/0x60 kernel/sched/idle.c:424
rest_init+0x2dc/0x300 init/main.c:747
start_kernel+0x47a/0x500 init/main.c:1103
x86_64_start_reservations+0x2a/0x30 arch/x86/kernel/head64.c:507
x86_64_start_kernel+0x9f/0xa0 arch/x86/kernel/head64.c:488
common_startup_64+0x13e/0x147