rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-...D } 2685 jiffies s: 2425 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: 5500 Comm: dhcpcd-run-hook Not tainted 6.8.0-rc4-syzkaller-g166c2c8a6a4d #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 RIP: 0010:instrument_atomic_read include/linux/instrumented.h:68 [inline] RIP: 0010:_test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline] RIP: 0010:__lock_acquire+0xc57/0x1fd0 kernel/locking/lockdep.c:5107 Code: 85 aa 0c 00 00 83 3d 97 fb d6 12 00 75 39 48 63 9c 24 88 00 00 00 48 89 d8 48 c1 e8 06 48 8d 3c c5 20 a4 c8 92 be 08 00 00 00 c4 63 84 00 48 bf 00 00 00 00 00 fc ff df 48 0f a3 1d c2 7b 57 RSP: 0018:ffffc90000007950 EFLAGS: 00000046 RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff94482303 RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff92c8a420 RBP: ffff8880238428a8 R08: ffffffff92c8a427 R09: 1ffffffff2591484 R10: dffffc0000000000 R11: fffffbfff2591485 R12: 0000000000000001 R13: ffff888023841dc0 R14: 1ffff11004708519 R15: ffff8880238428c8 FS: 00007f571341b380(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffd36b4da7c CR3: 000000007cc9e000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: lock_acquire+0x1e3/0x530 kernel/locking/lockdep.c:5754 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0xd5/0x120 kernel/locking/spinlock.c:162 debug_object_deactivate+0x158/0x390 lib/debugobjects.c:763 debug_hrtimer_deactivate kernel/time/hrtimer.c:427 [inline] debug_deactivate+0x1b/0x200 kernel/time/hrtimer.c:483 __run_hrtimer kernel/time/hrtimer.c:1657 [inline] __hrtimer_run_queues+0x30f/0xd00 kernel/time/hrtimer.c:1753 hrtimer_interrupt+0x396/0x990 kernel/time/hrtimer.c:1815 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1065 [inline] __sysvec_apic_timer_interrupt+0x107/0x3a0 arch/x86/kernel/apic/apic.c:1082 sysvec_apic_timer_interrupt+0x92/0xb0 arch/x86/kernel/apic/apic.c:1076 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:649 RIP: 0010:__sanitizer_cov_trace_switch+0x8f/0x120 kernel/kcov.c:340 Code: 4d 85 d2 75 14 e9 99 00 00 00 41 b8 05 00 00 00 4d 85 d2 0f 84 8a 00 00 00 4c 8b 4c 24 20 65 4c 8b 1d b5 4c 70 7e 31 d2 eb 08 <48> ff c2 49 39 d2 74 71 4c 8b 74 d6 10 65 8b 05 a5 4c 70 7e a9 00 RSP: 0018:ffffc9000554f7a0 EFLAGS: 00000293 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffc9000554ff58 RDX: 0000000000000002 RSI: ffffffff8dfa0280 RDI: 0000000000000000 RBP: ffffffff90a55de4 R08: 0000000000000005 R09: ffffffff814066c0 R10: 0000000000000003 R11: ffff888023841dc0 R12: 1ffff92000aa9f16 R13: dffffc0000000000 R14: 0000000000000004 R15: 1ffff92000aa9f14 unwind_next_frame+0x1970/0x29e0 arch/x86/kernel/unwind_orc.c:641 arch_stack_walk+0x150/0x1b0 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x117/0x1d0 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x3f/0x80 mm/kasan/common.c:68 unpoison_slab_object mm/kasan/common.c:314 [inline] __kasan_slab_alloc+0x66/0x80 mm/kasan/common.c:340 kasan_slab_alloc include/linux/kasan.h:201 [inline] slab_post_alloc_hook mm/slub.c:3813 [inline] slab_alloc_node mm/slub.c:3860 [inline] kmem_cache_alloc+0x16f/0x340 mm/slub.c:3867 getname_flags+0xbc/0x4f0 fs/namei.c:140 do_sys_openat2+0xd2/0x1d0 fs/open.c:1398 do_sys_open fs/open.c:1419 [inline] __do_sys_openat fs/open.c:1435 [inline] __se_sys_openat fs/open.c:1430 [inline] __x64_sys_openat+0x247/0x2a0 fs/open.c:1430 do_syscall_64+0xf9/0x240 entry_SYSCALL_64_after_hwframe+0x6f/0x77 RIP: 0033:0x7f5713573477 Code: 10 00 00 00 44 8b 54 24 e0 48 89 44 24 c0 48 8d 44 24 d0 48 89 44 24 c8 44 89 c2 4c 89 ce bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 76 10 48 8b 15 82 69 0d 00 f7 d8 64 89 02 48 83 RSP: 002b:00007ffd36b4f138 EFLAGS: 00000287 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f5713573477 RDX: 0000000000090800 RSI: 000055d0dc82a160 RDI: 00000000ffffff9c RBP: 000055d0dc82528f R08: 0000000000090800 R09: 000055d0dc82a160 R10: 0000000000000000 R11: 0000000000000287 R12: 00007ffd36b4f298 R13: 000055d0dc825288 R14: 000055d0dc82a187 R15: 000000000000002f