md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
md0: Warning: Device ram0 is misaligned
------------[ cut here ]------------
!(flags & __GFP_NOWARN)
WARNING: mm/slub.c:7022 at __kvmalloc_node_noprof+0x798/0x820 mm/slub.c:7022, CPU#0: syz.0.0/5323
Modules linked in:
CPU: 0 UID: 0 PID: 5323 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
RIP: 0010:__kvmalloc_node_noprof+0x798/0x820 mm/slub.c:7022
Code: ff 48 c7 c7 b0 93 e9 8e 48 89 de e8 52 69 f0 02 e9 1b fc ff ff 48 c7 c7 f0 93 e9 8e 48 89 de e8 3e 69 f0 02 e9 4c fc ff ff 90 <0f> 0b 90 31 db e9 06 fe ff ff 90 0f 0b 90 e9 55 ff ff ff 49 83 7f
RSP: 0018:ffffc9000dc3f558 EFLAGS: 00010246
RAX: 0000000000000002 RBX: 0000000000000000 RCX: 8000000000000001
RDX: 0000000101010000 RSI: ffffffff8c6dcd60 RDI: ffffffff8c6dcd20
RBP: 00000000ffffffff R08: 00000000000029c0 R09: 00000000ffffffff
R10: 0000000000000006 R11: 0000000000000002 R12: 0000000101010000
R13: 00000000000029c0 R14: dffffc0000000000 R15: ffffffff8883a27f
FS:  00007fad8a84e6c0(0000) GS:ffff88808c2bc000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f62a0be5e9c CR3: 0000000013921000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 create_strip_zones+0xb6f/0x2170 drivers/md/raid0.c:150
 raid0_run+0x3de/0xed0 drivers/md/raid0.c:424
 md_run+0xc3d/0x1cd0 drivers/md/md.c:6779
 do_md_run+0x35/0x720 drivers/md/md.c:6880
 md_ioctl+0x1e2b/0x2610 drivers/md/md.c:8515
 blkdev_ioctl+0x5e3/0x740 block/ioctl.c:798
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:597 [inline]
 __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:583
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fad8999e159
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 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 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fad8a84dfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fad89c25fa0 RCX: 00007fad8999e159
RDX: 0000000000000000 RSI: 00000000400c0930 RDI: 0000000000000004
RBP: 00007fad89a3506b R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fad89c26038 R14: 00007fad89c25fa0 R15: 00007ffe81fc2388
 </TASK>