md: resync of RAID array md0
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1
WARNING: mm/slub.c:5459 at ___kmalloc_large_node+0x132/0x170 mm/slub.c:5459, CPU#1: md0_resync/6001
Modules linked in:
CPU: 1 UID: 0 PID: 6001 Comm: md0_resync 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:___kmalloc_large_node+0x132/0x170 mm/slub.c:5459
Code: db 0f 85 66 ff ff ff 45 31 e4 eb cb 48 81 ff 00 00 40 00 0f 86 07 ff ff ff 80 3d 51 7d d6 0f 00 75 0b c6 05 48 7d d6 0f 01 90 <0f> 0b 90 48 83 c4 08 31 c0 5b 5d 41 5c 41 5d 41 5e c3 cc cc cc cc
RSP: 0018:ffffc9000435f608 EFLAGS: 00010246
RAX: ffffffff88996c0e RBX: 0000000000880220 RCX: 0000000000000000
RDX: 00000000ffffffff RSI: 0000000000000cc0 RDI: 0000000000880220
RBP: 0000000000000cc0 R08: 0000000000000000 R09: 0000000000000000
R10: ffffed100c69000e R11: 0000000000000000 R12: 0000000000000cc0
R13: 00000000ffffffff R14: 0000000000880220 R15: ffffed1005a59235
FS:  0000000000000000(0000) GS:ffff8880d456c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f7a9f1f92f8 CR3: 0000000036023000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 __kmalloc_large_node_noprof+0x1c/0x70 mm/slub.c:5502
 __do_kmalloc_node mm/slub.c:5519 [inline]
 __kmalloc_noprof+0x5a3/0x840 mm/slub.c:5556
 _kmalloc_noprof include/linux/slab.h:995 [inline]
 r1buf_pool_alloc+0xfe/0xd90 drivers/md/raid1.c:181
 mempool_init_node+0x2f7/0x6f0 mm/mempool.c:272
 mempool_init_noprof+0x3a/0x50 mm/mempool.c:302
 init_resync drivers/md/raid1.c:2684 [inline]
 raid1_sync_request+0x1f5e/0x2ff0 drivers/md/raid1.c:2734
 md_do_sync.cold+0xf79/0x2946 drivers/md/md.c:9962
 md_thread+0x550/0x5d0 drivers/md/md.c:8732
 kthread+0x373/0x450 kernel/kthread.c:436
 ret_from_fork+0x730/0xd60 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>