On Thu, Apr 06, 2023 at 04:29:43PM -0600, Jens Axboe wrote: > On 4/5/23 9:42 PM, Yu Kuai wrote: > > Hi, Jens! > > > > 在 2023/03/22 11:59, Yu Kuai 写道: > >> From: Yu Kuai <yukuai3@xxxxxxxxxx> > >> > >> Currently if disk_scan_partitions() failed, GD_NEED_PART_SCAN will still > >> set, and partition scan will be proceed again when blkdev_get_by_dev() > >> is called. However, this will cause a problem that re-assemble partitioned > >> raid device will creat partition for underlying disk. > >> > >> Test procedure: > >> > >> mdadm -CR /dev/md0 -l 1 -n 2 /dev/sda /dev/sdb -e 1.0 > >> sgdisk -n 0:0:+100MiB /dev/md0 > >> blockdev --rereadpt /dev/sda > >> blockdev --rereadpt /dev/sdb > >> mdadm -S /dev/md0 > >> mdadm -A /dev/md0 /dev/sda /dev/sdb > >> > >> Test result: underlying disk partition and raid partition can be > >> observed at the same time > >> > >> Note that this can still happen in come corner cases that > >> GD_NEED_PART_SCAN can be set for underlying disk while re-assemble raid > >> device. > >> > > > > Can you apply this patch? > > None of them apply to my for-6.4/block branch... This patch is bug fix, and probably should aim at 6.3. Thanks, Ming
