hrtimer: interrupt took 42244115444 ns
rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-...!: (713 ticks this GP) idle=b47c/1/0x4000000000000000 softirq=71611/71612 fqs=0
rcu: 	(t=11282 jiffies g=62965 q=961 ncpus=2)
rcu: rcu_preempt kthread starved for 11282 jiffies! g62965 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
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:26272 pid:16    tgid:16    ppid:2      task_flags:0x208040 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5256 [inline]
 __schedule+0x14bc/0x5000 kernel/sched/core.c:6863
 __schedule_loop kernel/sched/core.c:6945 [inline]
 schedule+0x165/0x360 kernel/sched/core.c:6960
 schedule_timeout+0x12b/0x270 kernel/time/sleep_timeout.c:99
 rcu_gp_fqs_loop+0x301/0x1540 kernel/rcu/tree.c:2083
 rcu_gp_kthread+0x99/0x390 kernel/rcu/tree.c:2285
 kthread+0x711/0x8a0 kernel/kthread.c:463
 ret_from_fork+0x599/0xb30 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246
 </TASK>
CPU: 1 UID: 0 PID: 22 Comm: migration/1 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
Stopper: 0x0 <- 0x0
RIP: 0010:bpf_prog_6fd842a53d323cc5+0x39/0x5f
Code: e5 f3 0f 1e fa 48 81 ec 10 00 00 00 48 c7 45 f0 ff ff 00 00 48 c7 45 f8 00 00 00 00 48 b8 00 00 00 00 ff ff ff 80 4c 8b 55 f0 <4d> 85 d2 74 1b 49 83 ea 01 4d 85 d2 75 0c 49 c7 c2 f0 ff ff ff e8
RSP: 0018:ffffc90000a08980 EFLAGS: 00000202
RAX: 80ffffff00000000 RBX: 1ffff1100395eaaa RCX: dffffc0000000000
RDX: 0000000000000100 RSI: ffffc900042e5060 RDI: ffffc90000a08a20
RBP: ffffc90000a08990 R08: ffffffff81cdc871 R09: ffffffff8df41a20
R10: 00000000000040b3 R11: ffffffff8168e910 R12: ffffc900042e5048
R13: ffffc90000a08a20 R14: ffff88801caf5550 R15: ffffc900042e5060
FS:  0000000000000000(0000) GS:ffff888125f35000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f651aec4e9c CR3: 000000008a746000 CR4: 00000000003526f0
Call Trace:
 <IRQ>
 bpf_dispatcher_nop_func include/linux/bpf.h:1378 [inline]
 __bpf_prog_run include/linux/filter.h:723 [inline]
 bpf_prog_run include/linux/filter.h:730 [inline]
 __bpf_trace_run kernel/trace/bpf_trace.c:2075 [inline]
 bpf_trace_run1+0x27f/0x4c0 kernel/trace/bpf_trace.c:2115
 __bpf_trace_rcu_utilization+0xa1/0xf0 include/trace/events/rcu.h:27
 __traceiter_rcu_utilization+0x7a/0xb0 include/trace/events/rcu.h:27
 __do_trace_rcu_utilization include/trace/events/rcu.h:27 [inline]
 trace_rcu_utilization+0x191/0x1c0 include/trace/events/rcu.h:27
 rcu_core+0x130/0x1870 kernel/rcu/tree.c:2830
 handle_softirqs+0x27d/0x850 kernel/softirq.c:622
 __do_softirq kernel/softirq.c:656 [inline]
 invoke_softirq kernel/softirq.c:496 [inline]
 __irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:723
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:739
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1056 [inline]
 sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1056
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:finish_task_switch+0x242/0x940 kernel/sched/core.c:5114
Code: 0f 84 c2 01 00 00 48 85 db 0f 85 e9 01 00 00 0f 1f 44 00 00 4c 8b 75 d0 4c 89 e7 e8 28 4a cc 09 e8 83 75 37 00 fb 4c 8b 65 c0 <49> 8d bc 24 48 16 00 00 48 89 f8 48 c1 e8 03 42 0f b6 04 28 84 c0
RSP: 0018:ffffc900001c79f8 EFLAGS: 00000282
RAX: 61f05f288919db00 RBX: 0000000000000000 RCX: 61f05f288919db00
RDX: 0000000000000000 RSI: ffffffff8d7925e3 RDI: ffffffff8bc08360
RBP: ffffc900001c7a50 R08: ffffffff8f822077 R09: 1ffffffff1f0440e
R10: dffffc0000000000 R11: fffffbfff1f0440f R12: ffff88801caf3d00
R13: dffffc0000000000 R14: ffff8880246d9e80 R15: ffff8880b873b498
 context_switch kernel/sched/core.c:5259 [inline]
 __schedule+0x14c4/0x5000 kernel/sched/core.c:6863
 __schedule_loop kernel/sched/core.c:6945 [inline]
 schedule+0x165/0x360 kernel/sched/core.c:6960
 smpboot_thread_fn+0x5bd/0xa60 kernel/smpboot.c:156
 kthread+0x711/0x8a0 kernel/kthread.c:463
 ret_from_fork+0x599/0xb30 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246
 </TASK>