On Tue, Mar 15, 2016 at 04:12:14PM +0800, Eryu Guan wrote: > This is a test that performs simple I/O on dm error device, which > returns EIO on all I/O request. > > This is motivated by an ext4 bug that crashes kernel on error path when > trying to update atime. Following kernel patch should fix the issue > > ext4: fix NULL pointer dereference in ext4_mark_inode_dirty() > > Signed-off-by: Eryu Guan <eguan@xxxxxxxxxx> > --- Fails with: @@ -1,2 +1,6 @@ QA output created by 338 Silence is golden +specified blocksize 1024 is less than device physical sector size 4096 +switching to logical sector size 512 +mkfs.xfs: /dev/mapper/error-test appears to contain an existing filesystem (xfs). +mkfs.xfs: Use the -f option to force overwrite. And then it failed to clean up properly and caused all sorts of subsequent problems. -Dave. -- Dave Chinner david@xxxxxxxxxxxxx -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
