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WARNING: CPU: 0 PID: 3591 at kernel/rcu/tree_stall.h:970 rcu_check_gp_start_stall+0x2c8/0x450 kernel/rcu/tree_stall.h:955
Modules linked in:
CPU: 0 PID: 3591 Comm: kworker/0:3 Not tainted 6.1.97-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
Workqueue: events nsim_dev_trap_report_work
RIP: 0010:rcu_check_gp_start_stall+0x2c8/0x450 kernel/rcu/tree_stall.h:970
Code: c7 c7 40 8f cd 91 be 04 00 00 00 e8 b2 2f 6e 00 b8 01 00 00 00 87 05 47 a6 59 10 85 c0 0f 85 1c ff ff ff 48 c7 c0 80 fb 12 8d <0f> 0b 49 39 c7 74 47 48 c7 c0 64 b5 73 8e 48 c1 e8 03 42 0f b6 04
RSP: 0018:ffffc90000007b98 EFLAGS: 00010046
RAX: ffffffff8d12fb80 RBX: 00000000ffffe08d RCX: ffffffff8173e8ee
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffffffff91cd8f40
RBP: ffffc90000007df0 R08: dffffc0000000000 R09: 0000000000000003
R10: ffffffffffffffff R11: dffffc0000000001 R12: dffffc0000000000
R13: ffff8880b983b8d2 R14: 0000000000000246 R15: ffffffff8d12fb80
FS:  0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f43f23f5d58 CR3: 000000007ce37000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 rcu_core+0x699/0x1810 kernel/rcu/tree.c:2551
 handle_softirqs+0x2ee/0xa40 kernel/softirq.c:571
 __do_softirq kernel/softirq.c:605 [inline]
 invoke_softirq kernel/softirq.c:445 [inline]
 __irq_exit_rcu+0x157/0x240 kernel/softirq.c:654
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:666
 sysvec_apic_timer_interrupt+0x91/0xb0 arch/x86/kernel/apic/apic.c:1106
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:653
RIP: 0010:orc_find arch/x86/kernel/unwind_orc.c:162 [inline]
RIP: 0010:unwind_next_frame+0x1ce/0x2220 arch/x86/kernel/unwind_orc.c:448
Code: c1 ee 08 48 c7 c0 a4 34 86 8f 48 c7 c1 78 36 ad 8f 48 29 c1 48 c1 e9 02 45 31 ff 80 3d aa b9 74 0b 00 44 0f 45 f9 41 8d 47 ff <44> 39 f0 0f 86 26 19 00 00 44 89 f0 48 8d 1c 85 a4 34 86 8f 48 89
RSP: 0018:ffffc9000412f5a0 EFLAGS: 00000202
RAX: 000000000009c074 RBX: ffffc9000412f6c8 RCX: 000000000009c075
RDX: dffffc0000000000 RSI: ffffffff8651ab6c RDI: dffffc0000000000
RBP: 1ffff92000825ed6 R08: 0000000000000005 R09: ffffc9000412f770
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff888028a89dc0
R13: ffffffff8651ab6b R14: 00000000000551ab R15: 000000000009c075
 arch_stack_walk+0x10d/0x140 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x113/0x1c0 kernel/stacktrace.c:122
 kasan_save_stack mm/kasan/common.c:45 [inline]
 kasan_set_track+0x4b/0x70 mm/kasan/common.c:52
 __kasan_slab_alloc+0x65/0x70 mm/kasan/common.c:328
 kasan_slab_alloc include/linux/kasan.h:201 [inline]
 slab_post_alloc_hook+0x52/0x3a0 mm/slab.h:737
 slab_alloc_node mm/slub.c:3398 [inline]
 kmem_cache_alloc_node+0x136/0x310 mm/slub.c:3443
 __alloc_skb+0xde/0x670 net/core/skbuff.c:505
 alloc_skb include/linux/skbuff.h:1271 [inline]
 nsim_dev_trap_skb_build drivers/net/netdevsim/dev.c:748 [inline]
 nsim_dev_trap_report drivers/net/netdevsim/dev.c:805 [inline]
 nsim_dev_trap_report_work+0x24c/0xa90 drivers/net/netdevsim/dev.c:850
 process_one_work+0x8a9/0x11d0 kernel/workqueue.c:2292
 worker_thread+0xa47/0x1200 kernel/workqueue.c:2439
 kthread+0x28d/0x320 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
 </TASK>
----------------
Code disassembly (best guess):
   0:	c1 ee 08             	shr    $0x8,%esi
   3:	48 c7 c0 a4 34 86 8f 	mov    $0xffffffff8f8634a4,%rax
   a:	48 c7 c1 78 36 ad 8f 	mov    $0xffffffff8fad3678,%rcx
  11:	48 29 c1             	sub    %rax,%rcx
  14:	48 c1 e9 02          	shr    $0x2,%rcx
  18:	45 31 ff             	xor    %r15d,%r15d
  1b:	80 3d aa b9 74 0b 00 	cmpb   $0x0,0xb74b9aa(%rip)        # 0xb74b9cc
  22:	44 0f 45 f9          	cmovne %ecx,%r15d
  26:	41 8d 47 ff          	lea    -0x1(%r15),%eax
* 2a:	44 39 f0             	cmp    %r14d,%eax <-- trapping instruction
  2d:	0f 86 26 19 00 00    	jbe    0x1959
  33:	44 89 f0             	mov    %r14d,%eax
  36:	48 8d 1c 85 a4 34 86 	lea    -0x7079cb5c(,%rax,4),%rbx
  3d:	8f
  3e:	48                   	rex.W
  3f:	89                   	.byte 0x89