[Unionfs] RHEL 2.6.9 hangs with unionfs-1.1.5

[Josef Sipek]

On Wed, Nov 29, 2006 at 06:33:09PM +0100, Benoit Guillon wrote:
> Ok, I can reproduce the same problem with a server and a diskless node 
> having the same ix86 architecture. I use the crazy sparse file for this. 
> My conclusions so far is that it is not related to architecture but to 
> the sparse file. I attach the kernel trace (it's always the same thing, 
> pointing to the BUG_ON at unionfs_debugmacros.h:291).
> 
> To reproduce this, I do the following on the diskless node once booted:
> 
> echo 1 >> /var/log/lastlog
> 
> I still continue to investigate. I'd like to create a sparse file from 
> scratch that reproduces the problem.
 
dd if=/dev/zero of=file bs=1024k seek=10 count=1

This makes a sparse file, 11MB in size, where the first 10MB make up a hole.

Josef "Jeff" Sipek.

-- 
A CRAY is the only computer that runs an endless loop in just 4 hours...