ODEBUG: Out of memory. ODEBUG disabled
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
	(detected by 1, t=10502 jiffies, g=8169, q=782)
rcu: All QSes seen, last rcu_preempt kthread activity 10503 (4294956098-4294945595), jiffies_till_next_fqs=1, root ->qsmask 0x0
rcu: rcu_preempt kthread starved for 10504 jiffies! g8169 f0x2 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:27584 pid:   15 ppid:     2 flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5049 [inline]
 __schedule+0x11bb/0x4390 kernel/sched/core.c:6395
 schedule+0x11b/0x1e0 kernel/sched/core.c:6478
 schedule_timeout+0x15c/0x280 kernel/time/timer.c:1914
 rcu_gp_fqs_loop+0x29e/0x11b0 kernel/rcu/tree.c:1972
 rcu_gp_kthread+0x98/0x350 kernel/rcu/tree.c:2145
 kthread+0x436/0x520 kernel/kthread.c:334
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
 </TASK>
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: 4808 Comm: syz-executor.1 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:arch_static_branch_jump kernel/sched/clock.c:366 [inline]
RIP: 0010:sched_clock_stable kernel/sched/clock.c:110 [inline]
RIP: 0010:sched_clock_cpu+0x0/0x3c0 kernel/sched/clock.c:370
Code: 0c 5b 41 5c 41 5d 41 5e 41 5f c3 48 c7 c7 e0 2b fe 8b 48 89 de e8 a0 07 a7 02 e9 44 ff ff ff 66 2e 0f 1f 84 00 00 00 00 00 90 <55> 41 57 41 56 41 55 41 54 53 48 83 ec 20 66 90 e8 bb 60 d7 ff 48
RSP: 0018:ffffc90000007fb8 EFLAGS: 00000082
RAX: 0000000000000000 RBX: ffff8880b9027780 RCX: 23bf8925cf234d00
RDX: 0000000000000000 RSI: ffffffff8a59a460 RDI: 0000000000000000
RBP: 0000000000010000 R08: dffffc0000000000 R09: fffffbfff1ad323e
R10: fffffbfff1ad323e R11: ffffc90000007ff8 R12: dffffc0000000000
R13: 0000000000000000 R14: ffff88807bba8000 R15: ffffffff8bbc2820
FS:  00007f9a1e2756c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9a1e274d80 CR3: 000000001e20d000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 irqtime_account_irq+0x6a/0x1b0 kernel/sched/cputime.c:61
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
 sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1108
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:169 [inline]
RIP: 0010:_raw_spin_unlock_irq+0x25/0x40 kernel/locking/spinlock.c:202
Code: f6 ff 0f 1f 00 53 48 89 fb 48 83 c7 18 48 8b 74 24 08 e8 3e 1d aa f7 48 89 df e8 06 f2 aa f7 e8 c1 8c cb f7 fb bf 01 00 00 00 <e8> 46 15 9f f7 65 8b 05 27 13 50 76 85 c0 74 02 5b c3 e8 d4 1d 4e
RSP: 0018:ffffc900012efbc0 EFLAGS: 00000282
RAX: 23bf8925cf234d00 RBX: ffff88802a236f00 RCX: 23bf8925cf234d00
RDX: dffffc0000000000 RSI: ffffffff8a0b1820 RDI: 0000000000000001
RBP: 0000000000000000 R08: dffffc0000000000 R09: ffffed1005446de1
R10: ffffed1005446de1 R11: 1ffff11005446de0 R12: ffff88802a236f00
R13: 0000000000000021 R14: dffffc0000000000 R15: 000000001c000004
 spin_unlock_irq include/linux/spinlock.h:413 [inline]
 get_signal+0x11d6/0x12c0 kernel/signal.c:2903
 arch_do_signal_or_restart+0xc1/0x1300 arch/x86/kernel/signal.c:867
 handle_signal_work kernel/entry/common.c:154 [inline]
 exit_to_user_mode_loop+0x9e/0x130 kernel/entry/common.c:178
 exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:214
 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
 syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:307
 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f9a1eef4e67
Code: 14 25 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89
RSP: 002b:00007f9a1e275178 EFLAGS: 00000246
RAX: 00000000000000ca RBX: 00007f9a1f022f88 RCX: 00007f9a1eef4e69
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f9a1f022f88
RBP: 00007f9a1f022f80 R08: 00007f9a1e2756c0 R09: 00007f9a1e2756c0
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f9a1f022f8c
R13: 000000000000000b R14: 00007ffc1034a150 R15: 00007ffc1034a238
 </TASK>