rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 1-...!: (1 GPs behind) idle=2c9c/1/0x4000000000000000 softirq=65565/65566 fqs=1
rcu: (detected by 0, t=10502 jiffies, g=60081, q=144 ncpus=2)
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 10488 Comm: dhcpcd-run-hook Not tainted 6.13.0-rc5-syzkaller-00004-gccb98ccef0e5 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:lock_is_held_type+0x126/0x190 kernel/locking/lockdep.c:5923
Code: e8 7f 1a 00 00 b8 ff ff ff ff 65 0f c1 05 e2 bb 41 74 83 f8 01 75 44 48 c7 04 24 00 00 00 00 9c 8f 04 24 f7 04 24 00 02 00 00 <75> 4c 41 f7 c4 00 02 00 00 74 01 fb 65 48 8b 04 25 28 00 00 00 48
RSP: 0018:ffffc90000a18c28 EFLAGS: 00000046
RAX: 0000000000000001 RBX: 0000000000000001 RCX: ffff88801cb2bc00
RDX: ffff88801cb2bc00 RSI: ffffffff8c0aaae0 RDI: ffffffff8c5edd60
RBP: 0000000000000003 R08: ffffffff89c5d371 R09: fffff5200014317c
R10: dffffc0000000000 R11: fffff5200014317c R12: 0000000000000046
R13: ffff88801cb2bc00 R14: 00000000ffffffff R15: ffff88805d3c8300
FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1b9fa20420 CR3: 000000005d00e000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
lock_is_held include/linux/lockdep.h:249 [inline]
advance_sched+0x148/0xca0 net/sched/sch_taprio.c:927
__run_hrtimer kernel/time/hrtimer.c:1739 [inline]
__hrtimer_run_queues+0x59b/0xd30 kernel/time/hrtimer.c:1803
hrtimer_interrupt+0x403/0xa40 kernel/time/hrtimer.c:1865
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1038 [inline]
__sysvec_apic_timer_interrupt+0x110/0x420 arch/x86/kernel/apic/apic.c:1055
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1049
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:zap_pte_range mm/memory.c:1596 [inline]
RIP: 0010:zap_pmd_range mm/memory.c:1753 [inline]
RIP: 0010:zap_pud_range mm/memory.c:1782 [inline]
RIP: 0010:zap_p4d_range mm/memory.c:1803 [inline]
RIP: 0010:unmap_page_range+0x913/0x4040 mm/memory.c:1824
Code: 31 ff e8 30 7e b6 ff 48 83 e3 9f 0f 84 04 2a 00 00 48 8b 5c 24 70 48 89 d8 48 c1 e8 03 48 89 84 24 f0 00 00 00 42 80 3c 20 00 <4c> 8d b4 24 80 02 00 00 74 08 48 89 df e8 db 55 1a 00 48 8b 03 48
RSP: 0018:ffffc90003baf1a0 EFLAGS: 00000246
RAX: 1ffff92000775ee0 RBX: ffffc90003baf700 RCX: ffff88801cb2bc00
RDX: 0000000000000000 RSI: 0000000030d49007 RDI: 0000000000000000
RBP: ffffc90003baf4d0 R08: ffffffff81e8fa40 R09: 0000000000000000
R10: 0000000000000002 R11: ffff88801cb2bc00 R12: dffffc0000000000
R13: ffff888030d4c700 R14: 0000000000000000 R15: 1ffff110061a98fc
unmap_vmas+0x3cc/0x5f0 mm/memory.c:1914
exit_mmap+0x275/0xc20 mm/mmap.c:1668
__mmput+0x115/0x3b0 kernel/fork.c:1348
exec_mmap+0x779/0x860 fs/exec.c:1018
begin_new_exec+0x1285/0x1f90 fs/exec.c:1274
load_elf_binary+0x95b/0x2770 fs/binfmt_elf.c:1002
search_binary_handler fs/exec.c:1748 [inline]
exec_binprm fs/exec.c:1790 [inline]
bprm_execve+0xaf5/0x17a0 fs/exec.c:1842
do_execveat_common+0x55f/0x6f0 fs/exec.c:1949
do_execve fs/exec.c:2023 [inline]
__do_sys_execve fs/exec.c:2099 [inline]
__se_sys_execve fs/exec.c:2094 [inline]
__x64_sys_execve+0x92/0xb0 fs/exec.c:2094
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: 0033:0x7f1b9f9b7ef7
Code: Unable to access opcode bytes at 0x7f1b9f9b7ecd.
RSP: 002b:00007fff8ad132a8 EFLAGS: 00000246 ORIG_RAX: 000000000000003b
RAX: ffffffffffffffda RBX: 000055bdf7e21ec0 RCX: 00007f1b9f9b7ef7
RDX: 000055bdf7e21f08 RSI: 000055bdf7e21ec0 RDI: 000055bdf7e21f98
RBP: 000055bdf7e21f98 R08: 000055bdf7e21f9d R09: 00007fff8ad18ead
R10: 00007f1b9fbb6088 R11: 0000000000000246 R12: 000055bdf7e21f08
R13: 00007f1b9fb65904 R14: 000055bdf7e21f08 R15: 0000000000000000
rcu: rcu_preempt kthread starved for 10500 jiffies! g60081 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:25976 pid:17 tgid:17 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x17fb/0x4be0 kernel/sched/core.c:6756
__schedule_loop kernel/sched/core.c:6833 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6848
schedule_timeout+0x15a/0x290 kernel/time/sleep_timeout.c:99
rcu_gp_fqs_loop+0x2df/0x1330 kernel/rcu/tree.c:2045
rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:2247
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/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: 798 Comm: kworker/u8:5 Not tainted 6.13.0-rc5-syzkaller-00004-gccb98ccef0e5 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: events_unbound toggle_allocation_gate
RIP: 0010:csd_lock_wait kernel/smp.c:340 [inline]
RIP: 0010:smp_call_function_many_cond+0x19f8/0x2c60 kernel/smp.c:884
Code: 89 e6 83 e6 01 31 ff e8 56 e9 0b 00 41 83 e4 01 49 bc 00 00 00 00 00 fc ff df 75 07 e8 01 e5 0b 00 eb 38 f3 90 42 0f b6 04 23 <84> c0 75 11 41 f7 45 00 01 00 00 00 74 1e e8 e5 e4 0b 00 eb e4 44
RSP: 0018:ffffc900034976e0 EFLAGS: 00000293
RAX: 0000000000000000 RBX: 1ffff110170e88b9 RCX: ffff888024f55a00
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc900034978e0 R08: ffffffff81938e7a R09: 1ffffffff284e310
R10: dffffc0000000000 R11: fffffbfff284e311 R12: dffffc0000000000
R13: ffff8880b87445c8 R14: ffff8880b863f940 R15: 0000000000000001
FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1dbbd6df98 CR3: 000000000e736000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
on_each_cpu_cond_mask+0x3f/0x80 kernel/smp.c:1051
on_each_cpu include/linux/smp.h:71 [inline]
text_poke_sync arch/x86/kernel/alternative.c:2114 [inline]
text_poke_bp_batch+0x352/0xb30 arch/x86/kernel/alternative.c:2324
text_poke_flush arch/x86/kernel/alternative.c:2515 [inline]
text_poke_finish+0x30/0x50 arch/x86/kernel/alternative.c:2522
arch_jump_label_transform_apply+0x1c/0x30 arch/x86/kernel/jump_label.c:146
static_key_enable_cpuslocked+0x136/0x260 kernel/jump_label.c:210
static_key_enable+0x1a/0x20 kernel/jump_label.c:223
toggle_allocation_gate+0xbc/0x260 mm/kfence/core.c:849
process_one_work kernel/workqueue.c:3229 [inline]
process_scheduled_works+0xa66/0x1840 kernel/workqueue.c:3310
worker_thread+0x870/0xd30 kernel/workqueue.c:3391
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244