[Unionfs] Regression in 2.6.21.5-u2 compared to 2.6.21.5-u1

[Erez Zadok]

In message <468B7BDE.3040304 at dti-be.com>, Patrick Aussems writes:
> Hi,
> 
> I tried today to upgrade from the u1 release for the 2.6.21.5 kernel to
> the newer u2 version.  The system which was working fine doesn't boot
> anymore, it hangs when doing a pivot_root in the init.  The rest of the
> system remained unchanged. And when I switch back to the u1 version the
> system boots again.  Any ideas about the origin of this regression?
> 
> Best regards,
> 
> Patrick Aussems

Yup, I was able to reproduce the hang.  Turns out a couple of patches didn't
get back-ported somehow.  So I backported them and tested to ensure the
hang's gone.  I've released updated patches for 2.6.{18,19,20,21}.

Please get the new 2.6.21.5-u3 patch and try it.

Thanks,
Erez.