watchdog: BUG: soft lockup - CPU#0 stuck for 123s! [syz-executor.5:482]
Modules linked in:
irq event stamp: 13174652
hardirqs last  enabled at (13174651): [<ffffffff88200c42>] asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:596
hardirqs last disabled at (13174652): [<ffffffff881c2f9e>] idtentry_enter_cond_rcu+0x2e/0x50 arch/x86/entry/common.c:607
softirqs last  enabled at (958028): [<ffffffff88200f0f>] asm_call_on_stack+0xf/0x20 arch/x86/entry/entry_64.S:711
softirqs last disabled at (957775): [<ffffffff88200f0f>] asm_call_on_stack+0xf/0x20 arch/x86/entry/entry_64.S:711
CPU: 0 PID: 482 Comm: syz-executor.5 Not tainted 5.8.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:csd_lock_wait kernel/smp.c:108 [inline]
RIP: 0010:smp_call_function_single+0x302/0x450 kernel/smp.c:382
Code: 2f 44 89 ee 83 e6 01 31 ff e8 6a 04 0b 00 41 83 e5 01 75 14 e8 4f 00 0b 00 eb 45 0f 1f 00 66 2e 0f 1f 84 00 00 00 00 00 f3 90 <42> 0f b6 04 23 84 c0 75 0d 41 f6 07 01 74 22 e8 2a 00 0b 00 eb e8
RSP: 0018:ffffc900048f7da0 EFLAGS: 00000246
RAX: ffffffff81697be6 RBX: 1ffff9200091efb9 RCX: 0000000000040000
RDX: ffffc90014c2e000 RSI: 000000000003ffff RDI: 0000000000040000
RBP: ffffc900048f7e28 R08: ffffffff81697bb6 R09: ffffed1015d26d11
R10: ffffed1015d26d11 R11: 0000000000000000 R12: dffffc0000000000
R13: 0000000000000001 R14: 0000000000000000 R15: ffffc900048f7dc8
FS:  00007fd84b5f3700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1475f4c030 CR3: 00000000a8d6a000 CR4: 00000000001426f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 smp_call_function_many kernel/smp.c:577 [inline]
 smp_call_function kernel/smp.c:599 [inline]
 on_each_cpu+0x4d/0x1f0 kernel/smp.c:699
 clock_was_set+0x18/0x20 kernel/time/hrtimer.c:872
 do_settimeofday64+0x41e/0x520 kernel/time/timekeeping.c:1257
 __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+0x196/0x1c0 kernel/time/posix-timers.c:1067
 do_syscall_64+0x73/0xe0 arch/x86/entry/common.c:359
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x45cb29
Code: Bad RIP value.
RSP: 002b:00007fd84b5f2c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000e3
RAX: ffffffffffffffda RBX: 00000000004db560 RCX: 000000000045cb29
RDX: 0000000000000000 RSI: 0000000020000400 RDI: 0000000000000000
RBP: 000000000078bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 000000000000007b R14: 00000000004c34ac R15: 00007fd84b5f36d4
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 6938 Comm: syz-fuzzer Not tainted 5.8.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:debug_lockdep_rcu_enabled+0x0/0x30 kernel/rcu/update.c:288
Code: 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 65 81 05 00 de e5 77 00 00 00 f0 c3 cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc <31> c0 83 3d 77 bc 50 01 00 74 1e 83 3d 2e ed 50 01 00 74 15 65 48
RSP: 0000:ffffc90001697c58 EFLAGS: 00000046
RAX: ffffffff866a40e9 RBX: 0000000000000001 RCX: ffff888092dc8100
RDX: 0000000000010000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffff88809e0f8180 R08: ffffffff866a3f6d R09: ffffed1012770a32
R10: ffffed1012770a32 R11: 0000000000000000 R12: 174376cfae86ed9f
R13: dffffc0000000000 R14: ffff888093b85000 R15: ffff888093b85360
FS:  000000c000043c90(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000b90004 CR3: 00000000a8d70000 CR4: 00000000001426e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 rcu_read_unlock include/linux/rcupdate.h:684 [inline]
 advance_sched+0x783/0x8c0 net/sched/sch_taprio.c:754
 __run_hrtimer kernel/time/hrtimer.c:1520 [inline]
 __hrtimer_run_queues+0x47f/0x930 kernel/time/hrtimer.c:1584
 hrtimer_interrupt+0x373/0xd60 kernel/time/hrtimer.c:1646
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1080 [inline]
 __sysvec_apic_timer_interrupt+0xf0/0x260 arch/x86/kernel/apic/apic.c:1097
 run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:50 [inline]
 sysvec_apic_timer_interrupt+0x112/0x130 arch/x86/kernel/apic/apic.c:1091
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:596
RIP: 0033:0x4206b0
Code: Bad RIP value.
RSP: 002b:000000c00114bea8 EFLAGS: 00000203
RAX: 0000000000203004 RBX: 00007f5bdb98d96c RCX: 0000000000000001
RDX: 0000000000000400 RSI: 0000000000000001 RDI: 000000c0103d5a10
RBP: 000000c00114bf28 R08: 00007f5bdbb6efff R09: 000000c0103d2c00
R10: 000000c00002d270 R11: 0000000000000188 R12: 00000000000000fa
R13: 0000000000000098 R14: 0000000000000200 R15: 0000000000000055