On Sat, 15 Feb 2003, David Dawes wrote: >>>> Yep, RH7.3 with its default kernel plus the agpgart driver referenced >>>> above. Could you try your setup using that agpgart driver? That >>>> might help narrow down if the problem lies there or elsewhere. I >>>> don't see how the problem could be anywhere other than the kernel >>>> or agpgart driver. >> >>I guess I'll need to try this same kernel. > >I downloaded the 2.4.20-2.21 kernel source rpm from RH's phoebe beta. >I can get the kernel to build, but not modules. So, I built the agpgart >driver into the kernel and tested it that way. I can reproduce what >you're seeing with this kernel. > >I also tried the stock 2.4.20 kernel from ftp.kernel.org, and it works >fine, and doesn't show the problem you're seeing. > >So, it looks like some difference between RH's kernel and the stock >kernel. You'll have to follow that up further with Red Hat (or use a >kernel from ftp.kernel.org).
This problem has since been reported for mga, and other hardware also, and we've suspected it to be something specific to our kernel as well. Last night Arjan Van de Ven tracked the problem down to a refcount bug in rmap with respect to PageReserved pages. DRM marks it's pages as PageReserved and was affected by this bug. The bugfix is in our latest internal kernel build now, and confirmed working on several systems which showed this problematic behaviour. I thought I'd pass the info around to the list that the issue is resolved now. Thanks, TTYL -- Mike A. Harris _______________________________________________ Devel mailing list [EMAIL PROTECTED] http://XFree86.Org/mailman/listinfo/devel
