rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 1-.... } 2632 jiffies s: 79801 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: 9010 Comm: syz.3.1191 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
RIP: 0010:rdtsc_ordered arch/x86/include/asm/msr.h:215 [inline]
RIP: 0010:pvclock_clocksource_read+0xe7/0x760 arch/x86/kernel/pvclock.c:76
Code: df 48 89 54 24 38 4c 89 74 24 28 42 0f b6 04 22 84 c0 0f 85 45 01 00 00 43 0f b6 04 26 84 c0 0f 85 7f 01 00 00 8b 1f 0f 01 f9 <66> 90 48 89 d5 48 8b 8c 24 90 00 00 00 42 0f b6 0c 21 84 c9 0f 85
RSP: 0018:ffffc900001e0640 EFLAGS: 00000046
RAX: 0000000082de2980 RBX: 0000000000000006 RCX: 0000000000000001
RDX: 00000000000000e3 RSI: ffffffff8fa0e05c RDI: ffffffff8fa0e040
RBP: ffffc900001e07d8 R08: ffffffff8fa0e048 R09: ffffffff8fa0e058
R10: ffffffff8fa0e050 R11: ffffffff8fa0e043 R12: dffffc0000000000
R13: dffffc0000000000 R14: 1ffffffff1f41c08 R15: ffffffff8c653988
FS:  00007fda8c3f66c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f08ca031d58 CR3: 000000005e027000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 kvm_clock_read arch/x86/kernel/kvmclock.c:79 [inline]
 kvm_sched_clock_read+0x14/0x40 arch/x86/kernel/kvmclock.c:91
 sched_clock_cpu+0x6e/0x260 kernel/sched/clock.c:369
 irqtime_account_irq+0x6a/0x1b0 kernel/sched/cputime.c:60
 account_hardirq_exit include/linux/vtime.h:159 [inline]
 __irq_exit_rcu+0x99/0x230 kernel/softirq.c:676
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:691
 instr_sysvec_irq_work arch/x86/kernel/irq_work.c:17 [inline]
 sysvec_irq_work+0x4f/0xc0 arch/x86/kernel/irq_work.c:17
 asm_sysvec_irq_work+0x16/0x20 arch/x86/include/asm/idtentry.h:728
RIP: 0010:rcu_read_unlock_special+0x7f/0x510 kernel/rcu/tree_plugin.h:685
Code: eb 03 48 b8 f1 f1 f1 f1 f8 f2 f2 f2 4a 89 04 2b 42 c7 44 2b 08 f8 f3 f3 f3 65 44 8b 35 d2 33 95 7e 41 f7 c6 00 00 f0 00 74 40 <48> c7 44 24 40 0e 36 e0 45 4a c7 04 2b 00 00 00 00 42 c7 44 2b 08
RSP: 0018:ffffc900001e0980 EFLAGS: 00000206
RAX: 0b08541a7cf20600 RBX: 1ffff9200003c138 RCX: 0b08541a7cf20600
RDX: dffffc0000000000 RSI: ffffffff8a8c1120 RDI: ffffffff8adf13a0
RBP: ffffc900001e0a80 R08: ffffffff90af932f R09: 1ffffffff215f265
R10: dffffc0000000000 R11: fffffbfff215f266 R12: 0000000000000246
R13: dffffc0000000000 R14: ffff8880b8f3b900 R15: 0000000000000002
 __rcu_read_unlock+0x78/0xd0 kernel/rcu/tree_plugin.h:426
 rcu_read_unlock include/linux/rcupdate.h:823 [inline]
 hsr_announce+0x2ca/0x340 net/hsr/hsr_device.c:407
 call_timer_fn+0x1ac/0x670 kernel/time/timer.c:1701
 expire_timers kernel/time/timer.c:1752 [inline]
 __run_timers+0x53e/0x800 kernel/time/timer.c:2023
 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:2036
 handle_softirqs+0x2a1/0x930 kernel/softirq.c:596
 __do_softirq kernel/softirq.c:630 [inline]
 invoke_softirq kernel/softirq.c:470 [inline]
 __irq_exit_rcu+0x13b/0x230 kernel/softirq.c:679
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:691
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline]
 sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1118
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:__sanitizer_cov_trace_pc+0x41/0x60 kernel/kcov.c:221
Code: ff 00 74 11 81 fa 00 01 00 00 75 35 83 b9 1c 16 00 00 00 74 2c 8b 91 f8 15 00 00 83 fa 02 75 21 48 8b 91 00 16 00 00 48 8b 32 <48> 8d 7e 01 8b 89 fc 15 00 00 48 39 cf 73 08 48 89 3a 48 89 44 f2
RSP: 0018:ffffc9000d2875b0 EFLAGS: 00000246
RAX: ffffffff83cfe1f0 RBX: ffffc9000d287800 RCX: ffff888029360000
RDX: ffffc9000f0c4000 RSI: 0000000000005bff RDI: 0000000000000062
RBP: 0000000000000062 R08: ffff888029360000 R09: 0000000000000002
R10: 000000000000005c R11: 0000000000000002 R12: ffff888058eb988d
R13: ffff888058eb988e R14: dffffc0000000000 R15: 000000000000000d
 tomoyo_const_part_length security/tomoyo/util.c:642 [inline]
 tomoyo_fill_path_info+0x1f0/0x3a0 security/tomoyo/util.c:682
 tomoyo_get_realpath security/tomoyo/file.c:153 [inline]
 tomoyo_path_number_perm+0x252/0x650 security/tomoyo/file.c:723
 tomoyo_path_mknod+0x147/0x190 security/tomoyo/tomoyo.c:239
 security_path_mknod+0xec/0x140 security/security.c:1167
 may_o_create fs/namei.c:3312 [inline]
 lookup_open fs/namei.c:3453 [inline]
 open_last_lookups fs/namei.c:3558 [inline]
 path_openat+0xb45/0x2ee0 fs/namei.c:3788
 do_filp_open+0x1f1/0x430 fs/namei.c:3818
 do_sys_openat2+0x150/0x4b0 fs/open.c:1320
 do_sys_open fs/open.c:1336 [inline]
 __do_sys_openat fs/open.c:1352 [inline]
 __se_sys_openat fs/open.c:1347 [inline]
 __x64_sys_openat+0x135/0x160 fs/open.c:1347
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fda8e19cdd9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fda8c3f6028 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007fda8e416090 RCX: 00007fda8e19cdd9
RDX: 00000000000026e1 RSI: 0000200000000040 RDI: ffffffffffffff9c
RBP: 00007fda8e232d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fda8e416128 R14: 00007fda8e416090 R15: 00007ffd4c2189c8
 </TASK>