[Bug 36952] segfault in crackberg xscreensaver on ATI RS482 in mesa git running kms & gallium

https://bugs.freedesktop.org/show_bug.cgi?id=36952

--- Comment #8 from dri tester writemeanddie@hotmail.com 2011-05-13 03:45:55 PDT --- (In reply to comment #3)

Can you bisect mesa?

Bisecting lead me to this commit:

b10bff11350014e1bb49b0ce18704fdd66e850c0 is the first bad commit commit b10bff11350014e1bb49b0ce18704fdd66e850c0 Author: Marek Olšák maraeo@gmail.com Date: Sat Dec 25 14:39:07 2010 +0100

r300g: increase the size of upload buffers

On the way here, some of the bisects that failed had varying behaviour. All of them had abysmal frame rates and the CPU% shot up to 100% on one CPU (only uses 50% prior to this commit). Some continued to run, others locked up the x server and required an Alt-SysRq-B to reboot.