rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 1-.... } 5548 jiffies s: 42417 root: 0x2/.
rcu: blocking rcu_node structures (internal RCU debug):
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 21087 Comm: syz-executor Not tainted 6.10.0-rc6-syzkaller-00170-g0913ec336a6c #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
RIP: 0010:timerqueue_add+0x260/0x290 lib/timerqueue.c:40
Code: 00 00 00 00 00 fc ff df 80 3c 08 00 74 08 48 89 df e8 d4 dd 7c f6 4c 89 3b 4d 85 ff 0f 95 c3 4c 89 ff 4c 89 e6 e8 70 68 ff ff <89> d8 48 83 c4 30 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc e8
RSP: 0018:ffffc90000a18a40 EFLAGS: 00000082
RAX: 1ffff1100b290868 RBX: ffff8880b952c901 RCX: dffffc0000000000
RDX: 0000000000000000 RSI: ffff8880b952c9d0 RDI: ffff888059484340
RBP: 1ffff1100b290868 R08: ffff888059484357 R09: 0000000000000000
R10: ffff888059484340 R11: ffffed100b29086b R12: ffff8880b952c9d0
R13: ffff8880b952c9d0 R14: 0000000000000000 R15: ffff888059484340
FS:  0000555570e4f500(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9993104000 CR3: 000000001aaaa000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 enqueue_hrtimer+0x1b2/0x3c0 kernel/time/hrtimer.c:1093
 __run_hrtimer kernel/time/hrtimer.c:1706 [inline]
 __hrtimer_run_queues+0x6cb/0xd50 kernel/time/hrtimer.c:1753
 hrtimer_interrupt+0x396/0x990 kernel/time/hrtimer.c:1815
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline]
 __sysvec_apic_timer_interrupt+0x110/0x3f0 arch/x86/kernel/apic/apic.c:1049
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
 sysvec_apic_timer_interrupt+0x52/0xc0 arch/x86/kernel/apic/apic.c:1043
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:variable_ffs arch/x86/include/asm/bitops.h:321 [inline]
RIP: 0010:handle_softirqs+0x1df/0x970 kernel/softirq.c:542
Code: 89 7c 24 70 0f b7 db 48 c7 c7 40 b0 c9 8b e8 a8 02 2c 0a 65 66 c7 05 56 d2 a9 7e 00 00 e8 f9 88 43 00 fb 49 c7 c4 c0 a0 00 8e <b8> ff ff ff ff 0f bc c3 41 89 c7 41 ff c7 0f 84 e6 03 00 00 89 5c
RSP: 0018:ffffc90000a18e40 EFLAGS: 00000286
RAX: 4df495705d481900 RBX: 0000000000000386 RCX: ffffffff9479f603
RDX: dffffc0000000000 RSI: ffffffff8bcabb40 RDI: ffffffff8c1fe940
RBP: ffffc90000a18f50 R08: ffffffff8fad49ef R09: 1ffffffff1f5a93d
R10: dffffc0000000000 R11: fffffbfff1f5a93e R12: ffffffff8e00a0c0
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff920001431dc
 __do_softirq kernel/softirq.c:588 [inline]
 invoke_softirq kernel/softirq.c:428 [inline]
 __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:649
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
 sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1043
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:check_kcov_mode kernel/kcov.c:184 [inline]
RIP: 0010:write_comp_data kernel/kcov.c:236 [inline]
RIP: 0010:__sanitizer_cov_trace_cmp8+0x35/0x90 kernel/kcov.c:284
Code: 0c 25 c0 d4 03 00 65 8b 05 a0 aa 6d 7e a9 00 01 ff 00 74 10 a9 00 01 00 00 74 57 83 b9 1c 16 00 00 00 74 4e 8b 81 f8 15 00 00 <83> f8 03 75 43 48 8b 91 00 16 00 00 44 8b 89 fc 15 00 00 49 c1 e1
RSP: 0018:ffffc90003857338 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffffffff81000000 RCX: ffff888064d09e00
RDX: ffffc900038574b5 RSI: ffffffff8bc00000 RDI: ffffffff81376ee2
RBP: ffffffff81376ee2 R08: ffffffff8140f1df R09: ffffffff8141095f
R10: 0000000000000003 R11: ffff888064d09e00 R12: ffffc90003857480
R13: ffffc900038574d0 R14: ffffffff8bc00000 R15: ffffffff81376ee3
 unwind_next_frame+0x1ef/0x2a00 arch/x86/kernel/unwind_orc.c:494
 __unwind_start+0x641/0x7c0 arch/x86/kernel/unwind_orc.c:760
 unwind_start arch/x86/include/asm/unwind.h:64 [inline]
 arch_stack_walk+0x103/0x1b0 arch/x86/kernel/stacktrace.c:24
 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:1473
 prep_new_page mm/page_alloc.c:1481 [inline]
 get_page_from_freelist+0x2e4c/0x2f10 mm/page_alloc.c:3425
 __alloc_pages_noprof+0x256/0x6c0 mm/page_alloc.c:4683
 alloc_pages_mpol_noprof+0x3e8/0x680 mm/mempolicy.c:2265
 vm_area_alloc_pages mm/vmalloc.c:3575 [inline]
 __vmalloc_area_node mm/vmalloc.c:3651 [inline]
 __vmalloc_node_range_noprof+0x971/0x1460 mm/vmalloc.c:3832
 vmalloc_user_noprof+0x74/0x80 mm/vmalloc.c:3986
 kcov_ioctl+0x59/0x640 kernel/kcov.c:706
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:907 [inline]
 __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:893
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f9992f757db
Code: 00 48 89 44 24 18 31 c0 48 8d 44 24 60 c7 04 24 10 00 00 00 48 89 44 24 08 48 8d 44 24 20 48 89 44 24 10 b8 10 00 00 00 0f 05 <89> c2 3d 00 f0 ff ff 77 1c 48 8b 44 24 18 64 48 2b 04 25 28 00 00
RSP: 002b:00007fff387253d0 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f9992f757db
RDX: 0000000000040000 RSI: ffffffff80086301 RDI: 00000000000000d9
RBP: 00007f99931040d0 R08: 00000000000000d8 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000000000c
R13: 0000000000000003 R14: 0000000000000009 R15: 0000000000000009
 </TASK>