Upgrading 5.1 to latest -> crash upon starting X

[Ewald Jenisch]

Hi,

Seems like I'm running into a problem upgrading my 5.1 machine to the 
latest level:

The symptoms: When I boot the new kernel everything runs straight up to 
the moment when I start X-Windows. When starting X as a normal user I 
end up with a "db"-prompt (debugger?); when starting X as root the 
screen goes blank and after some seconds the box reboots.

As far as building & installing is concerned I did everything as per 
chapter 21 of "the handbook", including installing binaries (userland) 
in single-user mode, running mergemaster etc.etc.

BTW, when booting the old kernel (kernel.old) everything is fine again - 
so assume the problem is with the kernel itself.

Has anybody else seen this? What can I do against it?


Since I don't want to post exessive logs in the first place, here's what 
I've got:

Asus CUSL2-mobo
512MB RAM
2 IDE HDs (80, 60GB)
Matrox G400 graphics

and when upgrading I went from the version that comes on the 5.1-CD to 
the latest one available via cvsup (the "UPDATING" file has an entry of 
2003-09-28)

Please let me know if you need any additional details.

TIA for your help,
-ewald