The render code in the X server appears to crash pretty often on OpenBSD/sparc64. Running firefox on http://www.conrad.de/ seems to be especially efficient to trigger the problem about 90% of the time. Simon Kellner found it to be caused by an unaligned memory access, when copying from a data buffer to a long.
Created attachment 3095 [details] xorg.0.log with VESA driver, 6.8.99.15
mention render in the summary
Created attachment 3313 [details] [review] xkbdesc-ibr-kz-20050918-1643.diff For the records - I've independently found the same bug in XFree86 4.5 under NetBSD/sparc64. The problem seems to be that GlyphSet and a few other types are defined as unsigned long but the code in render.c assumes sizeof(GlyphSet)==4 which leads to unaligned accesses sooner or later. They should probably be CARD32 instead, or something else that's guaranteed to be 32bit. Our fix is slightly different though.
mathieu, could you please reattach so I can apply? got lost in the disk crash.
Created attachment 3074 [details] [review] Here's the patch used in OpenBSD
applied to head, thanks!
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