On Wed, Jun 21, 2023 at 04:47:43PM +0200, Jan Kara wrote: > xfs_bdev_mark_dead() passes bdev->bd_holder to ext4_force_shutdown() > instead of bdev->bd_super leading to crashes. Fix it. xfs_bdev_mark_dead is only called for the log and RT devices, for which the mp is passed as holder to blkdev_get_by_path. bd_super won't be set for those devices, so this patch will introduce a crash and not fix one.