Re: Problems with hfsplus on ipods in 2.6.38+

[Daniel Barkalow <barkalow@iabervon.org>]

On Thu, 14 Jul 2011, Seth Forshee wrote:

> On Wed, Jul 13, 2011 at 10:10:13PM -0400, Daniel Barkalow wrote:
> > I've got an ipod which doesn't work with 2.6.38 or later, unless I revert:
> > 
> > 358f26d52680cb150907302d4334359de7dd2d59
> > 52399b171dfaea02b6944cd6feba49b624147126
> > 
> > In the failing case, I get:
> > 
> >  sd 2:0:0:0: [sdb] Bad block number requested
> >  hfs: unable to find HFS+ superblock
> > 
> > in dmesg when I try to mount it.
> > 
> > Before 2.6.38, or with those commits reverted, it mounts fine and works so 
> > far as I can tell. (There's an Ubuntu bug report: 
> > https://bugs.launchpad.net/ubuntu/+source/util-linux/+bug/734883, which 
> > reports other people having similar results). I can test patches and 
> > collect information that might be helpful, if you have any ideas.
> 
> This has had some discussion on lkml previously [1]. I've been trying to
> work on a fix, but the current iteration has problems, and I haven't
> been able to get testers to provide the logs I've requested to help me
> see what's going wrong. If you'd like to help by providing logs from the
> most recent test build on the bug you linked to (or using the patches
> from that build) that would be great. I unfortunately don't have any
> large-sector devices to test with and cannot reproduce the problems on
> 512-byte sector devices.

Sure, I'll try the comment #36 patch set this evening and see what it says.

	-Daniel
*This .sig left intentionally blank*