rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (10500 ticks this GP) idle=dc94/1/0x4000000000000000 softirq=58057/2123481 fqs=5232
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:       19    1032986            0
rcu: 	cputime:      962      49878         1631   ==> 52490(ms)
rcu: 	(t=10501 jiffies g=53585 q=2567 ncpus=2)
CPU: 0 UID: 0 PID: 54 Comm: kworker/u8:3 Not tainted 6.12.0-syzkaller-g27802ca14cae #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: events_unbound nsim_dev_trap_report_work
RIP: 0010:check_kcov_mode kernel/kcov.c:183 [inline]
RIP: 0010:write_comp_data kernel/kcov.c:246 [inline]
RIP: 0010:__sanitizer_cov_trace_const_cmp8+0x18/0x90 kernel/kcov.c:321
Code: 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 4c 8b 04 24 65 48 8b 0c 25 c0 d4 03 00 65 8b 05 c0 ef 6d 7e <25> 00 01 ff 00 74 10 3d 00 01 00 00 75 57 83 b9 1c 16 00 00 00 74
RSP: 0018:ffffc90000007898 EFLAGS: 00000246
RAX: 0000000000000104 RBX: 0000000000000400 RCX: ffff888022af1e00
RDX: 0000000000000100 RSI: 0000000000000400 RDI: 0000000000000000
RBP: ffffc90000007990 R08: ffffffff8bcbe2fe R09: 0000000000000020
R10: dffffc0000000000 R11: ffffed10170c6c99 R12: ffff8880b86364c0
R13: ffff8880b86362c0 R14: dffffc0000000000 R15: ffff8880b86368c0
FS:  0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000007d292000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 bstr_printf+0x112e/0x1210 lib/vsprintf.c:3417
 ____bpf_trace_printk kernel/trace/bpf_trace.c:389 [inline]
 bpf_trace_printk+0x1a1/0x230 kernel/trace/bpf_trace.c:374
 bpf_prog_0605f9f479290f07+0x38/0x3c
 bpf_dispatcher_nop_func include/linux/bpf.h:1290 [inline]
 __bpf_prog_run include/linux/filter.h:701 [inline]
 bpf_prog_run include/linux/filter.h:708 [inline]
 __bpf_trace_run kernel/trace/bpf_trace.c:2351 [inline]
 bpf_trace_run1+0x2ca/0x520 kernel/trace/bpf_trace.c:2391
 trace_rcu_utilization+0x1b4/0x1e0 include/trace/events/rcu.h:27
 rcu_core+0x1161/0x17a0 kernel/rcu/tree.c:2831
 handle_softirqs+0x2c5/0x980 kernel/softirq.c:554
 __do_softirq kernel/softirq.c:588 [inline]
 invoke_softirq kernel/softirq.c:428 [inline]
 __irq_exit_rcu+0xf7/0x220 kernel/softirq.c:655
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:671
 instr_sysvec_irq_work arch/x86/kernel/irq_work.c:17 [inline]
 sysvec_irq_work+0xa3/0xc0 arch/x86/kernel/irq_work.c:17
 </IRQ>
 <TASK>
 asm_sysvec_irq_work+0x1a/0x20 arch/x86/include/asm/idtentry.h:738
RIP: 0010:on_stack arch/x86/include/asm/stacktrace.h:55 [inline]
RIP: 0010:stack_access_ok arch/x86/kernel/unwind_orc.c:393 [inline]
RIP: 0010:deref_stack_reg arch/x86/kernel/unwind_orc.c:403 [inline]
RIP: 0010:unwind_next_frame+0xb36/0x22d0 arch/x86/kernel/unwind_orc.c:585
Code: 77 01 83 e6 07 83 fe 04 0f 84 e6 01 00 00 83 fe 03 0f 84 3e 03 00 00 83 fe 02 0f 85 98 04 00 00 48 89 6c 24 48 4c 89 7c 24 28 <49> 8d 6d 08 48 89 e8 48 c1 e8 03 48 89 84 24 88 00 00 00 42 80 3c
RSP: 0018:ffffc90000be6f30 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 1ffffffff2162121 RCX: ffffffff9037169c
RDX: ffffffff90b10906 RSI: 0000000000000002 RDI: 0000000000000001
RBP: ffffffff90b1090b R08: 000000000000000b R09: ffffc90000be70f0
R10: ffffc90000be7050 R11: ffffffff81819e90 R12: dffffc0000000000
R13: ffffc90000be7000 R14: ffffc90000be7038 R15: ffffffff90b1090a
 arch_stack_walk+0x11c/0x150 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122
 save_stack+0xfb/0x1f0 mm/page_owner.c:156
 __set_page_owner+0x92/0x800 mm/page_owner.c:320
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1556
 prep_new_page mm/page_alloc.c:1564 [inline]
 get_page_from_freelist+0x3649/0x3790 mm/page_alloc.c:3474
 __alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4751
 alloc_pages_mpol_noprof+0x3e8/0x680 mm/mempolicy.c:2265
 alloc_slab_page+0x6a/0x140 mm/slub.c:2412
 allocate_slab+0x5a/0x2f0 mm/slub.c:2578
 new_slab mm/slub.c:2631 [inline]
 ___slab_alloc+0xcd1/0x14b0 mm/slub.c:3818
 __slab_alloc+0x58/0xa0 mm/slub.c:3908
 __slab_alloc_node mm/slub.c:3961 [inline]
 slab_alloc_node mm/slub.c:4122 [inline]
 __do_kmalloc_node mm/slub.c:4263 [inline]
 __kmalloc_node_track_caller_noprof+0x281/0x440 mm/slub.c:4283
 kmalloc_reserve+0x111/0x2a0 net/core/skbuff.c:609
 __alloc_skb+0x1f3/0x440 net/core/skbuff.c:678
 alloc_skb include/linux/skbuff.h:1323 [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+0x261/0xb50 drivers/net/netdevsim/dev.c:851
 process_one_work kernel/workqueue.c:3229 [inline]
 process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310
 worker_thread+0x870/0xd30 kernel/workqueue.c:3391
 kthread+0x2f0/0x390 kernel/kthread.c:389
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>