watchdog: BUG: soft lockup - CPU#1 stuck for 21s! [syz-executor.4:23035]
Modules linked in:
irq event stamp: 2460373
hardirqs last  enabled at (2460372): [<ffffffff8484c78b>] irqentry_exit+0x3b/0x90
hardirqs last disabled at (2460373): [<ffffffff8484b14f>] sysvec_apic_timer_interrupt+0xf/0x80
softirqs last  enabled at (2449052): [<ffffffff811a97cc>] handle_softirqs+0x50c/0x770
softirqs last disabled at (2449055): [<ffffffff811a9b64>] __irq_exit_rcu+0xc4/0x100
CPU: 1 UID: 0 PID: 23035 Comm: syz-executor.4 Not tainted 6.12.0-next-20241121 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:__x86_indirect_thunk_rbx+0x0/0x20
Code: 00 00 00 00 66 0f 1f 44 00 00 e8 01 00 00 00 cc 48 89 14 24 e9 31 06 00 00 66 66 2e 0f 1f 84 00 00 00 00 00 66 0f 1f 44 00 00 <e8> 01 00 00 00 cc 48 89 1c 24 e9 11 06 00 00 66 66 2e 0f 1f 84 00
RSP: 0018:ffff88806cf090d0 EFLAGS: 00000286
RAX: ffffffff81a0b6ca RBX: ffffffff813f2420 RCX: 0000000000000001
RDX: 1ffff1100d9e1226 RSI: ffffffff81a0b6ca RDI: ffff88806cf091a0
RBP: ffff88806cf09170 R08: 0000000000000001 R09: ffff88806cf09118
R10: 000000000003c001 R11: 0000000000029887 R12: ffff88806cf091a0
R13: 0000000000000000 R14: ffff888013528000 R15: 0000000000092820
FS:  00007f7be7874700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fff851c9de8 CR3: 000000003d2b2000 CR4: 0000000000350ef0
Call Trace:
 <IRQ>
 </IRQ>
 <TASK>
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0 skipped: idling at default_idle+0x1e/0x30
----------------
Code disassembly (best guess):
   0:	00 00                	add    %al,(%rax)
   2:	00 00                	add    %al,(%rax)
   4:	66 0f 1f 44 00 00    	nopw   0x0(%rax,%rax,1)
   a:	e8 01 00 00 00       	callq  0x10
   f:	cc                   	int3
  10:	48 89 14 24          	mov    %rdx,(%rsp)
  14:	e9 31 06 00 00       	jmpq   0x64a
  19:	66 66 2e 0f 1f 84 00 	data16 nopw %cs:0x0(%rax,%rax,1)
  20:	00 00 00 00
  24:	66 0f 1f 44 00 00    	nopw   0x0(%rax,%rax,1)
* 2a:	e8 01 00 00 00       	callq  0x30 <-- trapping instruction
  2f:	cc                   	int3
  30:	48 89 1c 24          	mov    %rbx,(%rsp)
  34:	e9 11 06 00 00       	jmpq   0x64a
  39:	66                   	data16
  3a:	66                   	data16
  3b:	2e                   	cs
  3c:	0f                   	.byte 0xf
  3d:	1f                   	(bad)
  3e:	84 00                	test   %al,(%rax)