------------[ cut here ]------------
WARNING: CPU: 3 PID: 1396 at net/sched/sch_generic.c:320 dev_watchdog+0x821/0xa10 net/sched/sch_generic.c:319
Kernel panic - not syncing: panic_on_warn set ...

CPU: 3 PID: 1396 Comm: jbd2/sda1-8 Not tainted 4.13.0-rc6-next-20170825+ #9
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:16 [inline]
 dump_stack+0x194/0x257 lib/dump_stack.c:52
 panic+0x1e4/0x41c kernel/panic.c:181
 __warn+0x1c4/0x1e0 kernel/panic.c:542
 report_bug+0x211/0x2d0 lib/bug.c:183
 fixup_bug+0x40/0x90 arch/x86/kernel/traps.c:190
 do_trap_no_signal arch/x86/kernel/traps.c:224 [inline]
 do_trap+0x260/0x390 arch/x86/kernel/traps.c:273
 do_error_trap+0x120/0x390 arch/x86/kernel/traps.c:310
 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:323
 invalid_op+0x18/0x20 arch/x86/entry/entry_64.S:929
RIP: 0010:dev_watchdog+0x821/0xa10 net/sched/sch_generic.c:319
RSP: 0018:ffff88006df077b8 EFLAGS: 00010286
RAX: 0000000000000039 RBX: ffff88006ac44080 RCX: 0000000000000000
RDX: 0000000000000039 RSI: 1ffff1000dbe0eb7 RDI: ffffed000dbe0eeb
RBP: ffff88006df078b8 R08: ffff88006df06ea8 R09: 0000000000000000
R10: ffff88006a650640 R11: 0000000000000000 R12: 0000000000000000
R13: dffffc0000000000 R14: ffff88006ac44560 R15: ffff88006b362c80
 call_timer_fn+0x246/0x850 kernel/time/timer.c:1268
 expire_timers kernel/time/timer.c:1307 [inline]
 __run_timers+0x7fd/0xb90 kernel/time/timer.c:1601
 run_timer_softirq+0x21/0x80 kernel/time/timer.c:1614
 __do_softirq+0x2bb/0xbd0 kernel/softirq.c:284
 invoke_softirq kernel/softirq.c:364 [inline]
 irq_exit+0x1d3/0x210 kernel/softirq.c:405
 exiting_irq arch/x86/include/asm/apic.h:638 [inline]
 smp_apic_timer_interrupt+0x76/0xa0 arch/x86/kernel/apic/apic.c:1044
 apic_timer_interrupt+0x9d/0xb0 arch/x86/entry/entry_64.S:577
 </IRQ>
RIP: 0010:__read_once_size include/linux/compiler.h:276 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x23/0x60 kernel/kcov.c:66
RSP: 0018:ffff88006a65e850 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff10
RAX: ffff88006a650640 RBX: 1ffff1000d4cbd0f RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff88006dbffc14
RBP: ffff88006a65eac0 R08: 0000000000001000 R09: 1ffff1000d4cbcf4
R10: ffff88006a650640 R11: 00000000fffff8f8 R12: ffff88006ac4ac80
R13: ffff88006a65ea98 R14: ffff88006dbffc00 R15: ffff88006a65ebf0
 generic_make_request+0x435/0xe20 block/blk-core.c:2207
 submit_bio+0x18b/0x520 block/blk-core.c:2281
 submit_bh_wbc+0x4e9/0x680 fs/buffer.c:3136
 submit_bh+0x28/0x30 fs/buffer.c:3142
 jbd2_journal_commit_transaction+0x221f/0x7cf0 fs/jbd2/commit.c:713
 kjournald2+0x2bf/0xbd0 fs/jbd2/journal.c:233
 kthread+0x39c/0x470 kernel/kthread.c:231
 ret_from_fork+0x2a/0x40 arch/x86/entry/entry_64.S:431
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..