[bug report] raid0 array mkfs.xfs hang

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After upgrading from v6.10 to v6.11-rc1/2, I am seeing a hang when attempting to format a software raid0 array:

$sudo mkfs.xfs -f -K  /dev/md127
meta-data=/dev/md127 isize=512 agcount=32, agsize=33550272 blks
         =                       sectsz=4096  attr=2, projid32bit=1
         =                       crc=1        finobt=1, sparse=1, rmapbt=0
         =                       reflink=1    bigtime=0 inobtcount=0
data     =                       bsize=4096   blocks=1073608704, imaxpct=5
         =                       sunit=64     swidth=256 blks
naming   =version 2              bsize=4096   ascii-ci=0, ftype=1
log      =internal log           bsize=4096   blocks=521728, version=2
         =                       sectsz=4096  sunit=1 blks, lazy-count=1
realtime =none                   extsz=4096   blocks=0, rtextents=0
^C^C^C^C


I'm using mkfs.xfs -K to avoid discard-related lock-up issues which I have seen reported when googling - maybe this is just another similar issue.

The kernel lockup callstack is at the bottom.

Some array details:
$sudo mdadm --detail /dev/md127
/dev/md127:
           Version : 1.2
     Creation Time : Thu Aug  8 13:23:59 2024
        Raid Level : raid0
        Array Size : 4294438912 (4.00 TiB 4.40 TB)
      Raid Devices : 4
     Total Devices : 4
       Persistence : Superblock is persistent

       Update Time : Thu Aug  8 13:23:59 2024
             State : clean
    Active Devices : 4
   Working Devices : 4
    Failed Devices : 0
     Spare Devices : 0

            Layout : -unknown-
        Chunk Size : 256K

Consistency Policy : none

              Name : 0
              UUID : 3490e53f:36d0131b:7c7eb913:0fd62deb
            Events : 0

    Number   Major   Minor   RaidDevice State
       0       8       16        0      active sync   /dev/sdb
       1       8       64        1      active sync   /dev/sde
       2       8       48        2      active sync   /dev/sdd
       3       8       80        3      active sync   /dev/sdf



$lsblk
NAME               MAJ:MIN RM  SIZE RO TYPE  MOUNTPOINT
sda                  8:0    0 46.6G  0 disk
├─sda1               8:1    0  100M  0 part  /boot/efi
├─sda2               8:2    0    1G  0 part  /boot
└─sda3               8:3    0 45.5G  0 part
  ├─ocivolume-root 252:0    0 35.5G  0 lvm   /
  └─ocivolume-oled 252:1    0   10G  0 lvm   /var/oled
sdb                  8:16   0    1T  0 disk
└─md127              9:127  0    4T  0 raid0
sdc                  8:32   0    1T  0 disk
sdd                  8:48   0    1T  0 disk
└─md127              9:127  0    4T  0 raid0
sde                  8:64   0    1T  0 disk
└─md127              9:127  0    4T  0 raid0
sdf                  8:80   0    1T  0 disk
└─md127              9:127  0    4T  0 raid0

I'll start to look deeper, but any suggestions on the problem are welcome.

Thanks,
John


ort_iscsi aesni_intel crypto_simd cryptd
[ 396.110305] CPU: 0 UID: 0 PID: 321 Comm: kworker/0:1H Not tainted 6.11.0-rc1-g8400291e289e #11 [ 396.111020] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.5.1 06/16/2021
[  396.111695] Workqueue: kblockd blk_mq_run_work_fn
[  396.112114] RIP: 0010:bio_endio+0xa0/0x1b0
[ 396.112455] Code: 96 9a 02 00 48 8b 43 08 48 85 c0 74 09 0f b7 53 14 f6 c2 80 75 3b 48 8b 43 38 48 3d e0 a3 3c b2 75 44 0f b6 43 19 48 8b 6b 40 <84> c0 74 09 80 7d 19 00 75 03 88 45 19 48 89 df 48 89 eb e8 58 fe
[  396.113962] RSP: 0018:ffffa3fec19fbc38 EFLAGS: 00000246
[ 396.114392] RAX: 0000000000000001 RBX: ffff97a284c3e600 RCX: 00000000002a0001 [ 396.114974] RDX: 0000000000000000 RSI: ffffcfb0f1130f80 RDI: 0000000000020000 [ 396.115546] RBP: ffff97a284c41bc0 R08: ffff97a284c3e3c0 R09: 00000000002a0001 [ 396.116185] R10: 0000000000000000 R11: 0000000000000000 R12: ffff9798216ed000 [ 396.116766] R13: ffff97975bf071c0 R14: ffff979751be4798 R15: 0000000000009000 [ 396.117393] FS: 0000000000000000(0000) GS:ffff97b5ff600000(0000) knlGS:0000000000000000
[  396.118122] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 396.118709] CR2: 00007f2477a45f68 CR3: 0000000107998005 CR4: 0000000000770ef0
[  396.119398] PKRU: 55555554
[  396.119627] Call Trace:
[  396.119905]  <IRQ>
[  396.120078]  ? watchdog_timer_fn+0x1e2/0x260
[  396.120457]  ? __pfx_watchdog_timer_fn+0x10/0x10
[  396.120900]  ? __hrtimer_run_queues+0x10c/0x270
[  396.121276]  ? hrtimer_interrupt+0x109/0x250
[  396.121663]  ? __sysvec_apic_timer_interrupt+0x55/0x120
[  396.122197]  ? sysvec_apic_timer_interrupt+0x6c/0x90
[  396.122640]  </IRQ>
[  396.122815]  <TASK>
[  396.123009]  ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[  396.123473]  ? bio_endio+0xa0/0x1b0
[  396.123794]  ? bio_endio+0xb8/0x1b0
[  396.124082]  md_end_clone_io+0x42/0xa0
[  396.124406]  blk_update_request+0x128/0x490
[  396.124745]  ? srso_alias_return_thunk+0x5/0xfbef5
[  396.125554]  ? scsi_dec_host_busy+0x14/0x90
[  396.126290]  blk_mq_end_request+0x22/0x2e0
[  396.126965]  blk_mq_dispatch_rq_list+0x2b6/0x730
[  396.127660]  ? srso_alias_return_thunk+0x5/0xfbef5
[  396.128386]  __blk_mq_sched_dispatch_requests+0x442/0x640
[  396.129152]  blk_mq_sched_dispatch_requests+0x2a/0x60
[  396.130005]  blk_mq_run_work_fn+0x67/0x80
[  396.130697]  process_scheduled_works+0xa6/0x3e0
[  396.131413]  worker_thread+0x117/0x260
[  396.132051]  ? __pfx_worker_thread+0x10/0x10
[  396.132697]  kthread+0xd2/0x100
[  396.133288]  ? __pfx_kthread+0x10/0x10
[  396.133977]  ret_from_fork+0x34/0x40
[  396.134613]  ? __pfx_kthread+0x10/0x10
[  396.135207]  ret_from_fork_asm+0x1a/0x30
[  396.135863]  </TASK>




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