rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
	(detected by 1, t=10502 jiffies, g=7209, q=150)
rcu: All QSes seen, last rcu_preempt kthread activity 10503 (4294955276-4294944773), jiffies_till_next_fqs=1, root ->qsmask 0x0
rcu: rcu_preempt kthread starved for 10504 jiffies! g7209 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:28112 pid:   15 ppid:     2 flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5049 [inline]
 __schedule+0x11c3/0x4350 kernel/sched/core.c:6395
 preempt_schedule_irq+0xbb/0x160 kernel/sched/core.c:6799
 irqentry_exit+0x63/0x70 kernel/entry/common.c:435
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:schedule+0x108/0x1e0 kernel/sched/core.c:6480
Code: e8 5d cd f4 f7 49 8b 07 4c 39 f8 74 0d 4c 89 f7 be 01 00 00 00 e8 38 82 04 fa 49 89 de 49 c1 ee 03 eb 09 48 f7 03 08 00 00 00 <74> 39 bf 01 00 00 00 e8 cc dc 88 f7 31 ff e8 95 bb ff ff bf 01 00
RSP: 0018:ffffc90000d47b90 EFLAGS: 00000202
RAX: 0000000000000001 RBX: ffff88813fe23b80 RCX: ffffffff89c97b52
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff88813fe23b80
RBP: 0000000000208040 R08: ffff88813fe23b87 R09: 1ffff11027fc4770
R10: dffffc0000000000 R11: ffffed1027fc4771 R12: dffffc0000000000
R13: ffffc90000d47be0 R14: 1ffff11027fc4770 R15: dffffc0000000000
 schedule_timeout+0x184/0x2d0 kernel/time/timer.c:2117
 rcu_gp_fqs_loop+0x2be/0x11f0 kernel/rcu/tree.c:1972
 rcu_gp_kthread+0x9a/0x370 kernel/rcu/tree.c:2145
 kthread+0x42e/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: 4377 Comm: syz.1.18 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:get_signal+0x5ef/0x12e0 kernel/signal.c:-1
Code: c0 0f 85 2b 09 00 00 48 8b 44 24 40 0f b7 18 89 de 81 e6 80 00 00 00 31 ff e8 4d 8e 2d 00 81 e3 80 00 00 00 0f 85 9f 0a 00 00 <48> 8b 44 24 60 42 80 3c 20 00 48 8b 5c 24 48 74 08 48 89 df e8 08
RSP: 0018:ffffc9000333fbd0 EFLAGS: 00000046
RAX: ffffffff814b8933 RBX: 0000000000000000 RCX: ffff88801a990000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffff88801a990030 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffff52000667f58 R12: dffffc0000000000
R13: ffff88807b1aa500 R14: ffff88801a990930 R15: ffff88801a99002c
FS:  00007f9d5949c6c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000000058 CR3: 00000000735ee000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 arch_do_signal_or_restart+0xe6/0x12a0 arch/x86/kernel/signal.c:867
 handle_signal_work kernel/entry/common.c:157 [inline]
 exit_to_user_mode_loop+0x9e/0x130 kernel/entry/common.c:181
 exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:217
 __syscall_exit_to_user_mode_work kernel/entry/common.c:299 [inline]
 syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:310
 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f9d59e3c159
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f9d5949c0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007f9d5a0c3fa8 RCX: 00007f9d59e3c159
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f9d5a0c3fa8
RBP: 00007f9d5a0c3fa0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f9d5a0c4038 R14: 00007ffc35401f50 R15: 00007ffc35402038
 </TASK>