On Wed, May 27, 2009 at 03:01:02PM +0200, Jan Kara wrote: > In a situation like: > truncate(f, 1024); > a = mmap(f, 0, 4096); > a[0] = 'a'; > truncate(f, 4096); > > we end up with a dirty page which does not have all blocks allocated / > reserved. Fix the problem by using new VFS infrastructure. > > Signed-off-by: Jan Kara <jack@xxxxxxx> Hi Jan, Have you tested with -o nodelalloc? There is apparently a problem with ext4 when blocksize < pagesize which Aneesh has been working on. He has been able to reproduce the problem, and theorized that an earlier version your patch set would address the problem, but it apparently did not. See: http://bugzilla.kernel.org/show_bug.cgi?id=13369 ... and Aneesh can provide more details. Aneesh, you might want to try testing with this latest set and see if you can reproduce the problem with this set. - Ted -- 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
