md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
------------[ cut here ]------------
1
WARNING: mm/page_alloc.c:5340 at alloc_order_allowed mm/page_alloc.c:5340 [inline], CPU#2: syz.0.17/5925
WARNING: mm/page_alloc.c:5340 at __alloc_frozen_pages_noprof+0x2137/0x3300 mm/page_alloc.c:5397, CPU#2: syz.0.17/5925
Modules linked in:
CPU: 2 UID: 0 PID: 5925 Comm: syz.0.17 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:alloc_order_allowed mm/page_alloc.c:5340 [inline]
RIP: 0010:__alloc_frozen_pages_noprof+0x2137/0x3300 mm/page_alloc.c:5397
Code: 13 00 00 39 84 24 98 00 00 00 0f 85 4a fa ff ff e9 91 f6 ff ff 80 3d 2f 96 ba 0f 00 0f 85 9d e2 ff ff c6 05 22 96 ba 0f 01 90 <0f> 0b 90 e9 8d e2 ff ff 31 c0 e9 5f ec ff ff 48 8b 7c 24 08 48 c7
RSP: 0018:ffffc90003bdf5a8 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 000000000000000e RDI: 0000000000040dc0
RBP: 000000000000000e R08: 0000000000000000 R09: 0000000000000009
R10: 000000000000000e R11: 0000000000000000 R12: 0000000000040dc0
R13: 1ffff9200077bf11 R14: 0000000000000000 R15: 1ffff9200077becf
FS:  000055555cb35500(0000) GS:ffff8880d4b46000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005570104c0a78 CR3: 000000003d9ae000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 alloc_pages_mpol+0x201/0x550 mm/mempolicy.c:2486
 ___kmalloc_large_node+0xe8/0x130 mm/slub.c:5353
 __kmalloc_large_node_noprof+0x1c/0x70 mm/slub.c:5385
 __do_kmalloc_node mm/slub.c:5402 [inline]
 __kmalloc_noprof+0x5a8/0x840 mm/slub.c:5439
 _kmalloc_noprof include/linux/slab.h:995 [inline]
 _kzalloc_noprof include/linux/slab.h:1312 [inline]
 setup_conf+0x21b/0xba0 drivers/md/raid10.c:3855
 raid10_run+0xa82/0xd50 drivers/md/raid10.c:3955
 md_run+0xc2f/0x2510 drivers/md/md.c:6779
 do_md_run+0x36/0x660 drivers/md/md.c:6880
 md_ioctl+0x27eb/0x36d0 drivers/md/md.c:8515
 blkdev_ioctl+0x5ad/0x6f0 block/ioctl.c:798
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:597 [inline]
 __se_sys_ioctl fs/ioctl.c:583 [inline]
 __x64_sys_ioctl+0x18e/0x210 fs/ioctl.c:583
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x123/0x790 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f6a72d9e559
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:00007ffccfa988d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f6a73025fa0 RCX: 00007f6a72d9e559
RDX: 0000000000000000 RSI: 00000000400c0930 RDI: 0000000000000004
RBP: 00007f6a72e358b0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f6a73025fac R14: 00007f6a73025fa0 R15: 00007f6a73025fa0
 </TASK>