md: md0 stopped.
md0: error: bitmap file is already in use
md: md0 stopped.
WARNING: CPU: 1 PID: 10807 at drivers/md/md.c:7217 md_ioctl+0x3c19/0x57b0 drivers/md/md.c:7217
Kernel panic - not syncing: panic_on_warn set ...

CPU: 1 PID: 10807 Comm: syz-executor.2 Not tainted 4.19.133-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+0x1fc/0x2fe lib/dump_stack.c:118
 panic+0x26a/0x50e kernel/panic.c:186
 __warn.cold+0x20/0x61 kernel/panic.c:541
 report_bug+0x262/0x2b0 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:178 [inline]
 fixup_bug arch/x86/kernel/traps.c:173 [inline]
 do_error_trap+0x1d7/0x310 arch/x86/kernel/traps.c:296
Unknown ioctl -2147176808
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:1038
RIP: 0010:md_ioctl+0x3c19/0x57b0 drivers/md/md.c:7217
Code: 89 fa 48 c1 ea 03 0f b6 04 02 84 c0 74 08 3c 03 0f 8e 7b 0a 00 00 c7 85 40 01 00 00 00 00 00 00 e9 8e ec ff ff e8 c7 8e 50 fc <0f> 0b e9 78 d2 ff ff e8 bb 8e 50 fc 44 89 e6 bf 23 09 48 40 e8 1e
RSP: 0018:ffff888051247988 EFLAGS: 00010216
RAX: 0000000000040000 RBX: 1ffff1100a248f39 RCX: ffffc90009fdc000
RDX: 00000000000000b8 RSI: ffffffff85191a09 RDI: 0000000000000007
RBP: ffff888099f2c7c0 R08: 0000000000000000 R09: 0000000000000000
Unknown ioctl -2147176808
R10: 0000000000000007 R11: 0000000000000000 R12: 0000000000000932
R13: 0000000000000932 R14: 0000000000000001 R15: ffff8880a30be180
 __blkdev_driver_ioctl block/ioctl.c:303 [inline]
 blkdev_ioctl+0x5cb/0x1a7e block/ioctl.c:601
 block_ioctl+0xe9/0x130 fs/block_dev.c:1896
 vfs_ioctl fs/ioctl.c:46 [inline]
 file_ioctl fs/ioctl.c:501 [inline]
 do_vfs_ioctl+0xcdb/0x12e0 fs/ioctl.c:688
 ksys_ioctl+0x9b/0xc0 fs/ioctl.c:705
 __do_sys_ioctl fs/ioctl.c:712 [inline]
 __se_sys_ioctl fs/ioctl.c:710 [inline]
 __x64_sys_ioctl+0x6f/0xb0 fs/ioctl.c:710
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45c1d9
Code: 8d b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 5b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fa3778fbc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000008b00 RCX: 000000000045c1d9
RDX: 0000000000000000 RSI: 0000000000000932 RDI: 0000000000000003
RBP: 000000000078bf40 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000078bf0c
R13: 00007ffd6373a05f R14: 00007fa3778fc9c0 R15: 000000000078bf0c
Kernel Offset: disabled
Rebooting in 86400 seconds..