On Fri, Jun 5, 2009 at 8:07 AM, Jan Engelhardt<jengelh@xxxxxxxxxx> wrote: > > On Friday 2009-06-05 03:14, Sven-Thorsten Dietrich wrote: >>On Fri, 2009-06-05 at 00:21 +0200, Jan Engelhardt wrote: >>> >>> Cc'ing linux-rt. Mabye someone has a flash of an idea. >>> >>> On Thursday 2009-06-04 23:42, Hector Centeno wrote to Jan Engelhardt: >>> > >>> >I hope it is OK to contact you directly to this email. I've been >>> >trying to use your 2.6.29 RT kernel for OpenSuse 11.1 and came across >>> >some problems related to the Intel graphics driver (I have a laptop >>> >with intel GMA 950). The problem seems to be related to the new intel >>> >driver development that is going on and that seems to affect older >>> >hardware like mine. I get a constantly growing list of errors in >>> >/var/log/mesages like these: >>> > >> >>Try this patch: >> >>Signed-off-by: Sven-Thorsten Dietrich <sdietrich@xxxxxxx> >> >>Index: b/arch/x86/mm/iomap_32.c >>=================================================================== >>--- a/arch/x86/mm/iomap_32.c >>+++ b/arch/x86/mm/iomap_32.c >>@@ -38,7 +38,7 @@ void *kmap_atomic_prot_pfn(unsigned long >>- idx = type + KM_TYPE_NR * smp_processor_id(); >>+ idx = type + KM_TYPE_NR * raw_smp_processor_id(); >>@@ -69,7 +69,7 @@ void >>- enum fixed_addresses idx = type + KM_TYPE_NR*smp_processor_id(); >>+ enum fixed_addresses idx = type + KM_TYPE_NR*raw_smp_processor_id(); > > Yes, it does fix the problem. Enabling PAE and not having applied > this patch also produces a working system for the original poster. > > My thought was that this function kmap_atomic_prot_pfn is not used, > or used differently, under PAE. Could this be? I have a system that's got an Intel chip on-board. It started failing in strange ways when Gentoo decided that xorg-server-1.5 should go stable and a newer version of the intel-video driver came along with it. Searching around I found people saying turn on PAE, turn off PAE, that it had nothing to do with PAE. I got the same failures on both the standard and rt kernels. There are a number of bugs reported at the Xorg site about this recent driver. After 3 weeks of no MythTV on that machine I gave up and bought a newer NVidia card. No problems since. Just info. cheers, Mark -- To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
