On Mon, Mar 02, 2009 at 11:05:58AM -0800, Pallipadi, Venkatesh wrote: > On Sun, 2009-03-01 at 05:48 -0800, Sitsofe Wheeler wrote: > > On Sun, Mar 01, 2009 at 12:39:48PM +0100, Ingo Molnar wrote: > > > > > > Thanks, i've reverted the commit for now. Could you please send > > > a 'dmesg' from the bootup with the failed driver? By all > > > likelyhood an ioremap failure causes a driver failure. > > > > > > > See below (drm says it initalized though...): > > > > [ 0.000000] Linux version 2.6.29-rc6-00006-g17581ad (@verona) (gcc > > version 4.2.4) #87 Sun Mar 1 13:42:28 GMT 2009 > > [ 0.000000] KERNEL supported cpus: > > [ 0.000000] Intel GenuineIntel > > [ 0.000000] PAT WC disabled due to known CPU erratum. > > Looks like PAT is getting disabled on this platform. Can you send the > output of /proc/cpuinfo please.
The machine has a stepping of the Celeron M chip in it with PAT errata. I think it becomes disabled because it would require a careful code to ensure that WC was only used in circumstances where the errata would not matter... Here's the contents of /proc/cpuinfo: processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 13 model name : Intel(R) Celeron(R) M processor 900MHz stepping : 8 cpu MHz : 900.074 cache size : 512 KB fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 2 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat clflush dts acpi mmx fxsr sse sse2 ss tm pbe nx bts bogomips : 1800.14 clflush size : 64 power management: -- Sitsofe | http://sucs.org/~sits/ ------------------------------------------------------------------------------ Open Source Business Conference (OSBC), March 24-25, 2009, San Francisco, CA -OSBC tackles the biggest issue in open source: Open Sourcing the Enterprise -Strategies to boost innovation and cut costs with open source participation -Receive a $600 discount off the registration fee with the source code: SFAD http://p.sf.net/sfu/XcvMzF8H -- _______________________________________________ Dri-devel mailing list Dri-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/dri-devel
