md: md0 stopped.
md: md0 stopped.
md: md0 stopped.
md: md0 stopped.
md: md0 stopped.
WARNING: CPU: 0 PID: 6448 at drivers/md/md.c:7188 md_ioctl+0x3427/0x6360 drivers/md/md.c:7188
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 6448 Comm: syz-executor7 Not tainted 4.17.0-rc7+ #76
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+0x1b9/0x294 lib/dump_stack.c:113
 panic+0x22f/0x4de kernel/panic.c:184
 __warn.cold.8+0x163/0x1b3 kernel/panic.c:536
 report_bug+0x252/0x2d0 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:178 [inline]
 do_error_trap+0x1de/0x490 arch/x86/kernel/traps.c:296
 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:315
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:992
RIP: 0010:md_ioctl+0x3427/0x6360 drivers/md/md.c:7188
RSP: 0018:ffff8801b4b97400 EFLAGS: 00010293
RAX: ffff8801b4552140 RBX: 0000000000000932 RCX: ffffffff85663544
RDX: 0000000000000000 RSI: ffffffff85665e27 RDI: 0000000000000007
RBP: ffff8801b4b979c0 R08: ffff8801b4552140 R09: ffffed0036d76999
R10: ffff8801b4b973f0 R11: ffff8801b6bb4ccf R12: 0000000000000932
R13: ffff8801b6bb4b28 R14: ffff8801b4b97998 R15: 0000000000000001
 __blkdev_driver_ioctl block/ioctl.c:303 [inline]
 blkdev_ioctl+0x9b6/0x2020 block/ioctl.c:601
 block_ioctl+0xee/0x130 fs/block_dev.c:1877
 vfs_ioctl fs/ioctl.c:46 [inline]
 file_ioctl fs/ioctl.c:500 [inline]
 do_vfs_ioctl+0x1cf/0x16a0 fs/ioctl.c:684
 ksys_ioctl+0xa9/0xd0 fs/ioctl.c:701
 __do_sys_ioctl fs/ioctl.c:708 [inline]
 __se_sys_ioctl fs/ioctl.c:706 [inline]
 __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:706
 do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:287
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x455a09
RSP: 002b:00007f439f60dc68 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f439f60e6d4 RCX: 0000000000455a09
RDX: 00000000200001c0 RSI: 0000000000000932 RDI: 0000000000000004
RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 00000000000001a8 R14: 00000000006f7860 R15: 0000000000000000
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..