2.6.15 failure on power4 iSeries

[Michael Ellerman]

On Thu, 19 Jan 2006 01:38, will schmidt wrote:
> Michael Ellerman wrote:
> > On Wed, 18 Jan 2006 01:42, will schmidt wrote:
> >>Michael Ellerman wrote:
> >>>On Tue, 17 Jan 2006 10:35, will schmidt wrote:
> >>>>attempting to boot current kernels on a power4 iSeries doesnt work. 
> >>>> have tried both the powerpc-git tree and the torvalds-git tree.
> >>>>
> >>>>OS/400 RefCode is "C200 82FF".  (which means nothing to me :-)
> >>>
> >>>C20082FF VSP IPL complete successfully
> >>>
> >>>>no console output at all.
> >>
> >>This looks like the "2.6.15-mm4 failure on power5" output..  but I dont
> >>see a *cpuc-to-mutexes.patch in this tree to back out.  (torvalds-git)
> >>
> >>Will clean my glasses and look closer in a bit.. :-)
> >
> > Yeah, looks similar. I can't reproduce that crash on my POWER5 box here
> > though, so I'm not sure if that patch is actually the problem. Might be
> > worth git bisecting.
>
> I already git bisected to get it narrowed down to that one patch.   Or are
> you saying that the patch is broken up into more parts in the powerpc-git
> tree?
>
> Same tree builds and boots OK on power5 partition here too..   this seems
> to be something unique to power4 iSeries.

Sorry, getting the two bugs confused. I'm not sure which of the code in 
question is in mm vs Linus' git. It might be worth trying one of Ingo's 
patches for the other bug though, just in case.

> > You could try adding calls to udbg_printf() in start_kernel() to see if
> > we're getting in there.

Any luck with this?

cheers

-- 
Michael Ellerman
IBM OzLabs

email: michael:ellerman.id.au
inmsg: mpe:jabber.org
wwweb: http://michael.ellerman.id.au
phone: +61 2 6212 1183 (tie line 70 21183)

We do not inherit the earth from our ancestors,
we borrow it from our children. - S.M.A.R.T Person
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 189 bytes
Desc: not available
Url : http://ozlabs.org/pipermail/linuxppc64-dev/attachments/20060119/abd7d37a/attachment.pgp