[OOPS: overlayfs on kernel 3.5.2]

[OOPS: overlayfs on kernel 3.5.2]

[Andrew Watts]

Hello. I applied Andy Whitcroft's overlayfs commits from Ubuntu's 3.5
quantal tree (1f8c243de1 through ddcec43ac3 inclusive) to a vanilla
3.5.2 kernel.

This resulted in sporadic OOPS (see full thread at:
http://thread.gmane.org/gmane.linux.kernel/1349785 and in particular
Guo Chao's excellent analysis).

Has this issue already been reported and/or addressed?

Many thanks.

~ Andy

Re: [OOPS: overlayfs on kernel 3.5.2]

[Jordi Pujol]

A Dimarts, 25 de setembre de 2012 20:39:24, Andrew Watts va escriure:
> Hello.

Hello,

> I applied Andy Whitcroft's overlayfs commits from Ubuntu's 3.5
> quantal tree (1f8c243de1 through ddcec43ac3 inclusive) to a vanilla
> 3.5.2 kernel.

I think you should publish the overlays code that you have applied in the 
kernel,

if that can help, from 3.5.0-rc6 I'm using this one:

http://livenet.selfip.com/ftp/debian/overlayfs/overlayfs-v13_Linux_3.5.0-
rc6.tar.xz

never has given problems.

Regards,

Jordi Pujol

Live never ending Tale
GNU/Linux Live forever!
http://livenet.selfip.com

Re: [OOPS: overlayfs on kernel 3.5.2]

[Andrew Watts]

On Wed, Sep 26, 2012 at 11:12:09AM +0200, Jordi Pujol wrote:
> 
> I think you should publish the overlays code that you have applied in the 
> kernel,
> 
> if that can help, from 3.5.0-rc6 I'm using this one:
> 
Hi.

Thank you for the link to your patchset Jordi. I've compared the patches
and don't see any difference except I apply #9 (stacking depth) and don't
apply your extra patches (50,51,52).

Quite possibly what causes problems on my kernel and not yours is a
different configuration. What kernel versions on the 3.5 tree have
you tried overlayfs with?

It would be great to have Miklos Szeredi take a look at the OOPS in the
referenced thread (http://thread.gmane.org/gmane.linux.kernel/1349785) and
weigh in. I would like to use overlayfs again but an FS-level oops is a risk
I am unwilling to take.

Here's the patchset I used: http://www.filebox.com/5b7pwbwkirrq.

~ Andy