Re: 2.4.0test13 + Dual G4

[Benjamin Herrenschmidt <bh40@calva.net>]

>As per the advice from various list members (thanks all who responded!)
>regarding my random-coredumps under 2.2.18 in SMP mode, I've now upgraded
>to kernel 2.4.0
>Test 13.  I was unable to build it myself (unresolved references in the
>link step that I couldn't figure out) I grabbed a pre-built SMP kernel from
>ftp.linuxppc.org/users/kfukui.
>
>The kernel worked fairly well, (and was REALLY REALLY FAST!) but
>something went wrong with XFree86 (4.0.1) and my screen went blank and
>wouldn't return.  Sooo... I
>upgraded to Xfree86 4.0.2 from the same source.  Once I fixed a bad
>symlink that the RPM created (X linked to XPMac instead of XFree86) XFree
>worked again.
>
>SO, getting to the point of the mail - with the newest kernel and newest
>XFree, my mysterious crashes still exist.  Mozilla Mail is the biggest
>culprit, nearly every time I open
>it it dies.  No core, it just disappears.  This does not happen on a Uni-
>processor kernel.

Two things come to my mind:

 - Paul fixed another SMP issues very recently. Make sure you get the
linuxppc_2_3 (or eventually _2_5) tree from hq.fsmlabs.com to get the fix

 - There are some issues with XFree 4. vs. Linux SMP (generic issues on
x86 too) that have been discussed several times on XFree list. XFree
people tend to say it's a kernel problem, while nobody (AFAIK) on the
kernel camp have made any comment.

Ben.


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