Re: 2.6.23: random segfaults

[Mike F. <va...@ge...>]

On Wednesday 17 October 2007, Paul Mundt wrote:
> On Tue, Oct 16, 2007 at 01:52:31PM +0200, Manuel Lauss wrote:
> > With 2.6.23 my board(s) are again experiencing random segfaults and
> > pipe failures (compilejobs randomly abort with bash segfaulting
> > and/or gcc/make stop with "too many commandline options" errors, ...)
> > I tracked it to these two commits; reverting both stabilizes the system
> > again:
>
> What CPUs are you running on, and what sort of cache configuration are
> you using? Presumably write-through caching also works fine?
>
> I don't experience any breakage on a 4-way d-cache, but there have been
> problem reports on other CPUs with 2-way. Specifically it seems to be a
> cache colouring problem, bumping up the page size also corrects the
> issue.
>
> I'll see about reproducing and debugging it on a 2-way dcache..

i'm seeing random crashes on my lantank running 2.6.23 ... rebooting into=20
2.6.16.xx works fine.

that has a SH7751R with 2-way caches in write-back mode ... havent had time=
 to=20
try the suggestions above though :/
=2Dmike