------------[ cut here ]------------ WARNING: CPU: 1 PID: 6870 at kernel/sched/core.c:2670 __ttwu_queue_wakelist kernel/sched/core.c:2613 [inline] WARNING: CPU: 1 PID: 6870 at kernel/sched/core.c:2670 ttwu_queue_wakelist kernel/sched/core.c:2674 [inline] WARNING: CPU: 1 PID: 6870 at kernel/sched/core.c:2670 ttwu_queue_wakelist+0x26a/0x2b0 kernel/sched/core.c:2667 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 6870 Comm: syz-executor.0 Not tainted 5.9.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x198/0x1fd lib/dump_stack.c:118 panic+0x347/0x7c0 kernel/panic.c:231 __warn.cold+0x20/0x46 kernel/panic.c:600 report_bug+0x1bd/0x210 lib/bug.c:198 handle_bug+0x38/0x90 arch/x86/kernel/traps.c:234 exc_invalid_op+0x14/0x40 arch/x86/kernel/traps.c:254 asm_exc_invalid_op+0x12/0x20 arch/x86/include/asm/idtentry.h:536 RIP: 0010:ttwu_queue_wakelist kernel/sched/core.c:2670 [inline] RIP: 0010:ttwu_queue_wakelist+0x26a/0x2b0 kernel/sched/core.c:2667 Code: 0c 24 e9 93 fe ff ff 4c 89 04 24 e8 c0 83 64 00 4c 8b 04 24 e9 cb fe ff ff e8 e2 83 64 00 e9 4c ff ff ff e8 18 84 64 00 eb 89 <0f> 0b e9 73 fe ff ff 4c 89 c7 89 4c 24 08 4c 89 04 24 e8 9f 83 64 RSP: 0018:ffffc90000da8cc8 EFLAGS: 00010046 RAX: 0000000000000001 RBX: ffff8880ae720e20 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000010002 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffffffff89845908 R09: ffffffff8ab26bbf R10: fffffbfff1564d77 R11: 0000000000000001 R12: 0000000000000001 R13: ffff888099e80140 R14: 0000000000000001 R15: ffff8880ae700000 ttwu_queue kernel/sched/core.c:2695 [inline] try_to_wake_up+0x514/0x12b0 kernel/sched/core.c:2978 hrtimer_wakeup+0x43/0x60 kernel/time/hrtimer.c:1778 __run_hrtimer kernel/time/hrtimer.c:1524 [inline] __hrtimer_run_queues+0x6a9/0xfc0 kernel/time/hrtimer.c:1588 hrtimer_interrupt+0x32a/0x930 kernel/time/hrtimer.c:1650 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1080 [inline] __sysvec_apic_timer_interrupt+0x142/0x5e0 arch/x86/kernel/apic/apic.c:1097 asm_call_on_stack+0xf/0x20 arch/x86/entry/entry_64.S:706 __run_on_irqstack arch/x86/include/asm/irq_stack.h:22 [inline] run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:48 [inline] sysvec_apic_timer_interrupt+0xb2/0xf0 arch/x86/kernel/apic/apic.c:1091 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:581 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:770 [inline] RIP: 0010:seqcount_lockdep_reader_access include/linux/seqlock.h:104 [inline] RIP: 0010:read_seqcount_t_begin.constprop.0+0x10f/0x1e0 include/linux/seqlock.h:311 Code: 00 fc ff df 48 c1 e8 03 80 3c 10 00 0f 85 be 00 00 00 48 83 3d 89 61 51 08 00 0f 84 98 00 00 00 e8 16 73 0f 00 48 89 df 57 9d <0f> 1f 44 00 00 44 8b 25 e5 aa 59 08 31 ff 44 89 e3 83 e3 01 89 de RSP: 0018:ffffc90005807d80 EFLAGS: 00000293 RAX: 0000000000000000 RBX: 0000000000000293 RCX: 1ffffffff15645f1 RDX: ffff88805edac280 RSI: ffffffff8164daca RDI: 0000000000000293 RBP: 0000000000000200 R08: 0000000000000001 R09: 0000000000000001 R10: 0000000000000000 R11: 0000000000000000 R12: 00000000090afdb4 R13: dffffc0000000000 R14: dffffc0000000000 R15: 0000000000000000 ktime_get_ts64+0x50/0x210 kernel/time/timekeeping.c:893 posix_get_monotonic_timespec+0x6c/0x250 kernel/time/posix-timers.c:199 __do_sys_clock_gettime32 kernel/time/posix-timers.c:1174 [inline] __se_sys_clock_gettime32 kernel/time/posix-timers.c:1164 [inline] __ia32_sys_clock_gettime32+0x149/0x240 kernel/time/posix-timers.c:1164 do_syscall_32_irqs_on arch/x86/entry/common.c:78 [inline] __do_fast_syscall_32+0x60/0x90 arch/x86/entry/common.c:137 do_fast_syscall_32+0x2f/0x70 arch/x86/entry/common.c:160 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c RIP: 0023:0xf7f03549 Code: b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 002b:00000000090afd88 EFLAGS: 00000246 ORIG_RAX: 0000000000000109 RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00000000090afdb4 RDX: 0000000000000000 RSI: 000000000014bb6b RDI: 0000000000000000 RBP: 0000000000000004 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 ======================================================