Hi, (Stripped `linux-kernel@'.) 2 days, 9 hours, 28 minutes, 40 seconds ago, Mikael Pettersson wrote: > In 2.6.17 sparc64 kernels, X11 runs _extremely_ slowly with > frequent lock-up like behaviour on my Ultra5 (ATI Mach64). > > I finally managed to trace the cause to this change in 2.6.16-git6: Can you be more specific as to which version of Xorg you are using? Several people including me have reported being unable to run Xorg 7.0 on ATI-based sparc64 machines such as U5s [0]. Symptoms include kernel hangs as well as transient [1,2] or permanent [3] filesystem corruptions. I just recompiled a kernel with your patch and it doesn't make any difference in that respect (besides, re-adding the `prot = __pgprot(...)' line looks questionable since the input value of PROT becomes unused as a result). Xorg 6.9, OTOH, was apparently working fine for most people. Thanks, Ludovic. [0] http://lists.debian.org/debian-sparc/2006/04/msg00096.html [1] http://lists.debian.org/debian-sparc/2006/05/msg00008.html [2] http://lists.debian.org/debian-sparc/2006/06/msg00112.html [3] http://lists.debian.org/debian-sparc/2006/06/msg00141.html - To unsubscribe from this list: send the line "unsubscribe sparclinux" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html