Hello, when create lvm raid1, the command hang on for a long time. please help check it and let me know if you need any info/testing for it, thanks. repo:https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block.git branch:for-next commit: 59ef8180748269837975c9656b586daa16bb9def reproducer: dd if=/dev/zero bs=1M count=2000 of=file0.img dd if=/dev/zero bs=1M count=2000 of=file1.img dd if=/dev/zero bs=1M count=2000 of=file2.img dd if=/dev/zero bs=1M count=2000 of=file4.img losetup -fP --show file0.img losetup -fP --show file1.img losetup -fP --show file2.img losetup -fP --show file3.img pvcreate -y /dev/loop0 /dev/loop1 /dev/loop2 /dev/loop3 vgcreate black_bird /dev/loop0 /dev/loop1 /dev/loop2 /dev/loop3 lvcreate --type raid1 -m 3 -n non_synced_primary_raid_3legs_1 -L 1G black_bird /dev/loop0:0-300 /dev/loop1:0-300 /dev/loop2:0-300 /dev/loop3:0-300 console log: May 21 21:57:41 dell-per640-04 journal: Create raid1 May 21 21:57:41 dell-per640-04 kernel: device-mapper: raid: Superblocks created for new raid set May 21 21:57:42 dell-per640-04 kernel: md/raid1:mdX: not clean -- starting background reconstruction May 21 21:57:42 dell-per640-04 kernel: md/raid1:mdX: active with 4 out of 4 mirrors May 21 21:57:42 dell-per640-04 kernel: mdX: bitmap file is out of date, doing full recovery May 21 21:57:42 dell-per640-04 kernel: md: resync of RAID array mdX May 21 21:57:42 dell-per640-04 systemd[1]: Started Device-mapper event daemon. May 21 21:57:42 dell-per640-04 dmeventd[42170]: dmeventd ready for processing. May 21 21:57:42 dell-per640-04 dmeventd[42170]: Monitoring RAID device black_bird-non_synced_primary_raid_3legs_1 for events. May 21 21:57:45 dell-per640-04 restraintd[1446]: *** Current Time: Tue May 21 21:57:45 2024 Localwatchdog at: Tue May 21 22:56:45 2024 May 21 21:58:45 dell-per640-04 restraintd[1446]: *** Current Time: Tue May 21 21:58:45 2024 Localwatchdog at: Tue May 21 22:56:45 2024 May 21 21:59:45 dell-per640-04 restraintd[1446]: *** Current Time: Tue May 21 21:59:45 2024 Localwatchdog at: Tue May 21 22:56:45 2024 May 21 21:59:53 dell-per640-04 kernel: INFO: task mdX_resync:42168 blocked for more than 122 seconds. May 21 21:59:53 dell-per640-04 kernel: Not tainted 6.9.0+ #1 May 21 21:59:53 dell-per640-04 kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. May 21 21:59:53 dell-per640-04 kernel: task:mdX_resync state:D stack:0 pid:42168 tgid:42168 ppid:2 flags:0x00004000 May 21 21:59:53 dell-per640-04 kernel: Call Trace: May 21 21:59:53 dell-per640-04 kernel: <TASK> May 21 21:59:53 dell-per640-04 kernel: __schedule+0x222/0x670 May 21 21:59:53 dell-per640-04 kernel: ? blk_mq_flush_plug_list+0x5/0x20 May 21 21:59:53 dell-per640-04 kernel: schedule+0x2c/0xb0 May 21 21:59:53 dell-per640-04 kernel: raise_barrier+0x107/0x200 [raid1] May 21 21:59:53 dell-per640-04 kernel: ? __pfx_autoremove_wake_function+0x10/0x10 May 21 21:59:53 dell-per640-04 kernel: raid1_sync_request+0x12d/0xa50 [raid1] May 21 21:59:53 dell-per640-04 kernel: ? __pfx_raid1_sync_request+0x10/0x10 [raid1] May 21 21:59:53 dell-per640-04 kernel: md_do_sync+0x660/0x1040 May 21 21:59:53 dell-per640-04 kernel: ? __pfx_autoremove_wake_function+0x10/0x10 May 21 21:59:53 dell-per640-04 kernel: md_thread+0xad/0x160 May 21 21:59:53 dell-per640-04 kernel: ? __pfx_md_thread+0x10/0x10 May 21 21:59:53 dell-per640-04 kernel: kthread+0xdc/0x110 May 21 21:59:53 dell-per640-04 kernel: ? __pfx_kthread+0x10/0x10 May 21 21:59:53 dell-per640-04 kernel: ret_from_fork+0x2d/0x50 May 21 21:59:53 dell-per640-04 kernel: ? __pfx_kthread+0x10/0x10 May 21 21:59:53 dell-per640-04 kernel: ret_from_fork_asm+0x1a/0x30 May 21 21:59:53 dell-per640-04 kernel: </TASK> -- Best Regards, Changhui
