On some devices, when create mirror device with lvcreate, it fails. device-mapper: reload ioctl on failed: Invalid argument Failed to activate new LV. We can use read size 4096 since md always use 4096. Signed-off-by: Liuhua Wang <lwang@xxxxxxxx> --- drivers/md/dm-raid.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/md/dm-raid.c b/drivers/md/dm-raid.c index 4880b69..621afbb 100644 --- a/drivers/md/dm-raid.c +++ b/drivers/md/dm-raid.c @@ -860,7 +860,7 @@ static int super_load(struct md_rdev *rdev, struct md_rdev *refdev) rdev->sb_start = 0; rdev->sb_size = sizeof(*sb); - ret = read_disk_sb(rdev, rdev->sb_size); + ret = read_disk_sb(rdev, 4096); if (ret) return ret; -- 1.9.0 -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
