rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: 1-...0: (1 GPs behind) idle=e13/1/0x4000000000000000 softirq=93631/93633 fqs=5246 (detected by 0, t=10502 jiffies, g=149917, q=240) Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 19512 Comm: syz-executor.5 Not tainted 5.16.0-rc5-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:trace_hrtimer_start+0x0/0x270 include/trace/events/timer.h:195 Code: c5 d5 02 e9 97 fb ff ff e8 2d d2 10 00 89 ee 48 c7 c7 20 fe b2 8c e8 2f c5 d5 02 e9 fd fb ff ff 66 2e 0f 1f 84 00 00 00 00 00 <55> 41 57 41 56 53 89 f5 48 89 fb e8 00 d2 10 00 0f 1f 44 00 00 65 RSP: 0018:ffffc90000dc0d18 EFLAGS: 00000046 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000010003 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff888073a3ab40 RBP: ffffc90000dc0e78 R08: dffffc0000000000 R09: fffffbfff21dc28d R10: fffffbfff21dc28d R11: 0000000000000000 R12: ffff8880b9b2a240 R13: dffffc0000000000 R14: ffff8880b9b2a388 R15: ffff888073a3ab40 FS: 00007f45277a7700(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000040 CR3: 000000007443b000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: debug_activate kernel/time/hrtimer.c:476 [inline] enqueue_hrtimer kernel/time/hrtimer.c:1084 [inline] __run_hrtimer kernel/time/hrtimer.c:1702 [inline] __hrtimer_run_queues+0x59e/0xa60 kernel/time/hrtimer.c:1749 hrtimer_interrupt+0x3b3/0x1040 kernel/time/hrtimer.c:1811 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1086 [inline] __sysvec_apic_timer_interrupt+0xf9/0x270 arch/x86/kernel/apic/apic.c:1103 sysvec_apic_timer_interrupt+0x8c/0xb0 arch/x86/kernel/apic/apic.c:1097 asm_sysvec_apic_timer_interrupt+0x12/0x20 RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline] RIP: 0010:_raw_spin_unlock_irqrestore+0xd4/0x130 kernel/locking/spinlock.c:194 Code: 9c 8f 44 24 20 42 80 3c 23 00 74 08 4c 89 f7 e8 a2 47 bb f7 f6 44 24 21 02 75 4e 41 f7 c7 00 02 00 00 74 01 fb bf 01 00 00 00 67 0f 45 f7 65 8b 05 38 4a ed 75 85 c0 74 3f 48 c7 04 24 0e 36 RSP: 0018:ffffc90002f87ce0 EFLAGS: 00000206 RAX: 9aeccb3ccbd6ab00 RBX: 1ffff920005f0fa0 RCX: ffffffff90bb4903 RDX: dffffc0000000000 RSI: 0000000000000001 RDI: 0000000000000001 RBP: ffffc90002f87d70 R08: ffffffff818b3610 R09: fffffbfff1966081 R10: fffffbfff1966081 R11: 0000000000000000 R12: dffffc0000000000 R13: 1ffff920005f0f9c R14: ffffc90002f87d00 R15: 0000000000000246 do_settimeofday64+0x60e/0x7a0 kernel/time/timekeeping.c:1324 __do_sys_clock_settime kernel/time/posix-timers.c:1079 [inline] __se_sys_clock_settime kernel/time/posix-timers.c:1067 [inline] __x64_sys_clock_settime+0x23d/0x280 kernel/time/posix-timers.c:1067 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f4528e31e99 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f45277a7168 EFLAGS: 00000246 ORIG_RAX: 00000000000000e3 RAX: ffffffffffffffda RBX: 00007f4528f44f60 RCX: 00007f4528e31e99 RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000000 RBP: 00007f4528e8bff1 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffdcf7ab85f R14: 00007f45277a7300 R15: 0000000000022000 ---------------- Code disassembly (best guess), 3 bytes skipped: 0: e9 97 fb ff ff jmpq 0xfffffb9c 5: e8 2d d2 10 00 callq 0x10d237 a: 89 ee mov %ebp,%esi c: 48 c7 c7 20 fe b2 8c mov $0xffffffff8cb2fe20,%rdi 13: e8 2f c5 d5 02 callq 0x2d5c547 18: e9 fd fb ff ff jmpq 0xfffffc1a 1d: 66 2e 0f 1f 84 00 00 nopw %cs:0x0(%rax,%rax,1) 24: 00 00 00 * 27: 55 push %rbp <-- trapping instruction 28: 41 57 push %r15 2a: 41 56 push %r14 2c: 53 push %rbx 2d: 89 f5 mov %esi,%ebp 2f: 48 89 fb mov %rdi,%rbx 32: e8 00 d2 10 00 callq 0x10d237 37: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) 3c: 65 gs