rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-...!: (10492 ticks this GP) idle=7894/0/0x1 softirq=38962/38962 fqs=0
	(t=10501 jiffies g=55741 q=2 ncpus=2)
rcu: rcu_preempt kthread starved for 10502 jiffies! g55741 f0x0 RCU_GP_INIT(4) ->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:27200 pid:16    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5244 [inline]
 __schedule+0x10e9/0x40d0 kernel/sched/core.c:6561
 preempt_schedule_irq+0xb1/0x150 kernel/sched/core.c:6873
 irqentry_exit+0x63/0x70 kernel/entry/common.c:439
 asm_sysvec_reschedule_ipi+0x16/0x20 arch/x86/include/asm/idtentry.h:696
RIP: 0010:lock_is_held_type+0x13a/0x190 kernel/locking/lockdep.c:5710
Code: 75 40 48 c7 04 24 00 00 00 00 9c 8f 04 24 f7 04 24 00 02 00 00 75 46 41 f7 c5 00 02 00 00 74 01 fb 65 48 8b 04 25 28 00 00 00 <48> 3b 44 24 08 75 3c 89 e8 48 83 c4 10 5b 41 5c 41 5d 41 5e 41 5f
RSP: 0018:ffffc90000157b58 EFLAGS: 00000206
RAX: fa03cc5c2571fc00 RBX: ffff88813feed940 RCX: fa03cc5c2571fc00
RDX: 0000000000000000 RSI: ffffffff8a8c15e0 RDI: ffffffff8adf1c20
RBP: 0000000000000000 R08: dffffc0000000000 R09: fffffbfff1966061
R10: fffffbfff1966061 R11: 1ffffffff1966060 R12: 0000000000000000
R13: 0000000000000246 R14: ffffffff8cb2ae60 R15: 00000000ffffffff
 lock_is_held include/linux/lockdep.h:283 [inline]
 __might_resched+0xf2/0x610 kernel/sched/core.c:9928
 rcu_gp_init+0x10be/0x14b0 kernel/rcu/tree.c:1600
 rcu_gp_kthread+0x166/0x380 kernel/rcu/tree.c:1895
 kthread+0x29d/0x330 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 9697 Comm: syz.6.1358 Not tainted 6.1.144-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:syscall_return_via_sysret+0x1b/0x44
Code: 48 83 bc 24 a0 00 00 00 2b 0f 85 da 0d 00 00 66 90 b9 48 00 00 00 65 48 8b 14 25 68 6f 02 00 83 e2 fe 89 d0 48 c1 ea 20 0f 30 <41> 5f 41 5e 41 5d 41 5c 5d 5b 41 5b 41 5a 41 59 41 58 58 59 5a 5e
RSP: 0018:ffffc90003e37f58 EFLAGS: 00000046
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000048
RDX: 0000000000000000 RSI: ffffffff8a8c0460 RDI: ffffffff8adf1c20
RBP: 0000000000000000 R08: dffffc0000000000 R09: fffffbfff1c3ecc6
R10: fffffbfff1c3ecc6 R11: 0000000000000206 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
FS:  00007fd942dff6c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c3e6608 CR3: 000000007c3f5000 CR4: 00000000003526e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
RIP: 0033:0x7fd942f858e7
Code: 0b e9 68 fe ff ff 48 83 c4 18 48 8d 3d b2 6f d6 00 5b 5d 41 5c 41 5d 41 5e 41 5f e9 13 f8 fb ff 0f 1f 00 b8 27 00 00 00 0f 05 <c3> 0f 1f 84 00 00 00 00 00 b8 6e 00 00 00 0f 05 c3 0f 1f 84 00 00
RSP: 002b:00007fd942dfea48 EFLAGS: 00000206 ORIG_RAX: 0000000000000027
RAX: 000000000000002b RBX: 00007fd942dfebb0 RCX: 00007fd942f858e7
RDX: 00007fd942dfea80 RSI: 00007fd942dfebb0 RDI: 0000000000000021
RBP: 0000000000000000 R08: 0000000000000f3e R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fd9431b5fa0 R15: 00007ffeff7273c8
 </TASK>
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.1.144-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:default_idle+0xb/0x10 arch/x86/kernel/process.c:742
Code: 48 89 df e8 a7 89 b0 f7 e9 4c ff ff ff e8 5d 07 f6 ff 00 00 cc cc 00 00 cc cc 00 00 cc cc 00 66 90 0f 00 2d 67 d5 64 00 fb f4 <c3> 0f 1f 40 00 41 57 41 56 53 49 be 00 00 00 00 00 fc ff df 65 48
RSP: 0018:ffffffff8c807d88 EFLAGS: 000002c6
RAX: 8964b938e393cc00 RBX: ffffffff8a21ce87 RCX: 8964b938e393cc00
RDX: 0000000000000001 RSI: ffffffff8a8c0460 RDI: ffffffff8adf1c20
RBP: ffffffff8c807ec0 R08: dffffc0000000000 R09: ffffed10171c6af6
R10: ffffed10171c6af6 R11: 1ffff110171c6af5 R12: 0000000000000000
R13: dffffc0000000000 R14: ffffffff8c8bc680 R15: 1ffffffff1c3ed06
FS:  0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000004000 CR3: 0000000027e25000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 default_idle_call+0x84/0xc0 kernel/sched/idle.c:109
 cpuidle_idle_call kernel/sched/idle.c:191 [inline]
 do_idle+0x1fc/0x570 kernel/sched/idle.c:303
 cpu_startup_entry+0x3f/0x60 kernel/sched/idle.c:401
 rest_init+0x2dc/0x300 init/main.c:733
 arch_call_rest_init+0xa/0xa init/main.c:893
 start_kernel+0x490/0x539 init/main.c:1140
 secondary_startup_64_no_verify+0xcf/0xdb
 </TASK>