rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-...D } 2676 jiffies s: 75501 root: 0x1/.
rcu: blocking rcu_node structures (internal RCU debug):
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 6881 Comm: syz-executor.3 Not tainted 6.5.0-rc7-next-20230823-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
RIP: 0010:check_kcov_mode kernel/kcov.c:173 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x11/0x70 kernel/kcov.c:207
Code: b0 01 00 00 e8 b0 ff ff ff 31 c0 c3 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 f3 0f 1e fa 65 8b 05 7d ea 7b 7e 89 c1 48 8b 34 24 <81> e1 00 01 00 00 65 48 8b 14 25 c0 bc 03 00 a9 00 01 ff 00 74 0e
RSP: 0018:ffffc90000007d88 EFLAGS: 00000046
RAX: 0000000000010002 RBX: 17816c517c000000 RCX: 0000000000010002
RDX: ffff88801ecd0000 RSI: ffffffff8864a9b3 RDI: 0000000000000004
RBP: ffff888026f33810 R08: 0000000000000004 R09: 0000000000000002
R10: 0000000000000002 R11: dffffc0000000000 R12: 0000000000000002
R13: ffff888026f33800 R14: ffff88802885a340 R15: ffff888026f32400
FS:  0000555556b70480(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f7863b99d58 CR3: 000000003274e000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 advance_sched+0x5e3/0xc60 net/sched/sch_taprio.c:991
 __run_hrtimer kernel/time/hrtimer.c:1688 [inline]
 __hrtimer_run_queues+0x203/0xc10 kernel/time/hrtimer.c:1752
 hrtimer_interrupt+0x31b/0x800 kernel/time/hrtimer.c:1814
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1063 [inline]
 __sysvec_apic_timer_interrupt+0x105/0x3f0 arch/x86/kernel/apic/apic.c:1080
 sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1074
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:unwind_next_frame+0x116e/0x2390 arch/x86/kernel/unwind_orc.c:664
Code: 4c 89 63 40 e8 83 79 4d 00 48 89 da 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 0f b6 04 02 84 c0 74 08 3c 03 0f 8e 77 11 00 00 <44> 8b 23 89 ee 44 89 e7 e8 45 74 4d 00 41 39 ec 0f 85 b1 00 00 00
RSP: 0018:ffffc9000c7ff2d8 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffffc9000c7ff358 RCX: 0000000000000000
RDX: 1ffff920018ffe6b RSI: ffffffff813a58bd RDI: ffffc9000c7ff398
RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: ffffc9000c7fff48
R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000001
 arch_stack_walk+0xfa/0x170 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x96/0xd0 kernel/stacktrace.c:122
 kasan_save_stack+0x33/0x50 mm/kasan/common.c:45
 kasan_set_track+0x25/0x30 mm/kasan/common.c:52
 __kasan_slab_alloc+0x81/0x90 mm/kasan/common.c:328
 kasan_slab_alloc include/linux/kasan.h:188 [inline]
 slab_post_alloc_hook mm/slab.h:762 [inline]
 slab_alloc_node mm/slub.c:3478 [inline]
 slab_alloc mm/slub.c:3486 [inline]
 __kmem_cache_alloc_lru mm/slub.c:3493 [inline]
 kmem_cache_alloc_lru+0x21a/0x630 mm/slub.c:3509
 __d_alloc+0x32/0xac0 fs/dcache.c:1768
 d_alloc+0x4e/0x220 fs/dcache.c:1848
 d_alloc_parallel+0xe9/0x15f0 fs/dcache.c:2637
 lookup_open.isra.0+0xa5a/0x1360 fs/namei.c:3420
 open_last_lookups fs/namei.c:3563 [inline]
 path_openat+0x931/0x29c0 fs/namei.c:3793
 do_filp_open+0x1de/0x430 fs/namei.c:3823
 do_sys_openat2+0x176/0x1e0 fs/open.c:1422
 do_sys_open fs/open.c:1437 [inline]
 __do_sys_openat fs/open.c:1453 [inline]
 __se_sys_openat fs/open.c:1448 [inline]
 __x64_sys_openat+0x175/0x210 fs/open.c:1448
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f9819a7b6e0
Code: 48 89 44 24 20 75 93 44 89 54 24 0c e8 09 82 02 00 44 8b 54 24 0c 89 da 48 89 ee 41 89 c0 bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 77 38 44 89 c7 89 44 24 0c e8 5c 82 02 00 8b 44
RSP: 002b:00007ffe1067d990 EFLAGS: 00000293 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 0000000000080001 RCX: 00007f9819a7b6e0
RDX: 0000000000080001 RSI: 00007f9819ac8502 RDI: 00000000ffffff9c
RBP: 00007f9819ac8502 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000004
R13: 00007ffe1067da30 R14: 0000000000000001 R15: 0000000000000001
 </TASK>