On Wed, Mar 23, 2016 at 01:53:27PM +1100, Dave Chinner wrote: > 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. Test passed for me, seems it has something to do with the "physical sector size 4096" device. I'll look into it. Thanks for the review! Eryu -- 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
