Hi Changhui I guess you need to use the latest upstream mdadm. Could you have a try with https://github.com/md-raid-utilities/mdadm/ Regards Xiao On Thu, Jul 24, 2025 at 3:07 PM Changhui Zhong <czhong@xxxxxxxxxx> wrote: > > Hello, > > mdadm fails to initialize the sysfs interface while attempting to > assemble a RAID array, > please help check and let me know if you need any info/test, thanks. > > repo: https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block.git > branch: for-next > INFO: HEAD of cloned kernel > commit a8fa1731867273dd09125fd23cc1df4c33a7dcc3 > Merge: b41d70c8f7bf 5ec9d26b78c4 > Author: Jens Axboe <axboe@xxxxxxxxx> > Date: Tue Jul 22 19:10:37 2025 -0600 > > Merge branch 'for-6.17/block' into for-next > > reproducer: > # mdadm -CR /dev/md0 -l 1 -n 2 /dev/sdb /dev/sdc -e 1.0 > mdadm: array /dev/md0 started. > # mdadm -S /dev/md0 > mdadm: stopped /dev/md0 > # mdadm -A /dev/md0 /dev/sdb /dev/sdc > mdadm: Unable to initialize sysfs > # rpm -qa | grep mdadm > mdadm-4.4-2.el10.x86_64 > > and not hit this issue with upstream kernel > https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git > > > Best Regards, > Changhui >
