Re: Athlon possible fixes

2001-05-12 Thread Alan Cox
> I was a little skeptical to think that the X11 server code > has such a bug for SVGA 16bits color server today, > and yet was still wondering if Corner cases could exist. If you can replicate it the X folks will be most interested I suspect. > > But can the same problem manifest on AMD 751 chi

Re: Athlon possible fixes

2001-05-12 Thread Ishikawa
>On Sun, May 06, 2001 at 01:51:59PM +0100, Alan Cox wrote: > >> > There really needs to be a hardware fix... this doesn't stop some >> > application having it's owne optimised code from breaking on some >> > hardware (think games and similation software perhaps). >> >> prefetch is virtually address

Re: Athlon possible fixes

2001-05-12 Thread Jussi Laako
Alan Cox wrote: > > > So only working kernel (without noautotune) on that A7V133 machine is > > RedHat's 2.4.2-2 shipped with RedHat 7.1... But that's not good either > > because the system has large reiserfs volume and 2.4.2-2 has some > I wish I knew why the Red Hat one worked 8) Here's my ker

Re: Athlon possible fixes

2001-05-11 Thread Ralf Baechle
On Sun, May 06, 2001 at 01:51:59PM +0100, Alan Cox wrote: > > There really needs to be a hardware fix... this doesn't stop some > > application having it's owne optimised code from breaking on some > > hardware (think games and similation software perhaps). > > prefetch is virtually addresses. A

Re: Athlon possible fixes

2001-05-11 Thread Alan Cox
> Ahmm, 2.4.3 doesn't work. Gives some IDE DMA timeouts on boot. Kernel w= > as > compiled with Pentium-MMX processor setting, but I don't know if that's > enough to disable the Athlon code parts (autodetected at runtime?). That sounds totally unrelated to any Athlon optimisations > So only work

Re: Athlon possible fixes

2001-05-11 Thread Jussi Laako
Christian Bornträger wrote: > > Can you try and mail me if the Kernel 2.4.3 (without any ac patch) is > stable with your system even if you use autotune? "Downgrade" to this > kernel works fine for me. Ahmm, 2.4.3 doesn't work. Gives some IDE DMA timeouts on boot. Kernel was compiled with Pent

Re: Athlon possible fixes

2001-05-07 Thread Jussi Laako
Christian Bornträger wrote: > > Can you try and mail me if the Kernel 2.4.3 (without any ac patch) is > stable with your system even if you use autotune? "Downgrade" to this > kernel works fine for me. At least RedHat's 2.4.2-2 doesn't seem to lockup. I'll compile and try 2.4.3 tomorrow. - J

Re: Athlon possible fixes

2001-05-06 Thread Marek Pętlicki
On Sunday, May, 2001-05-06 at 20:18:36, Christian Bornträger wrote: > > Hmm, I'm wondering if this could be same bug that I'm seeing with ASUS > > A7V133 & Duron/800 when using IDE autotuning (PDC20265). > > Still haven't got any replies suggesting any reason for lockups I'm seeing > > (no oopses)

Re: Athlon possible fixes

2001-05-06 Thread Christian Bornträger
> Hmm, I'm wondering if this could be same bug that I'm seeing with ASUS > A7V133 & Duron/800 when using IDE autotuning (PDC20265). > Still haven't got any replies suggesting any reason for lockups I'm seeing > (no oopses). Or is the Promise driver just buggy, because system is solid > with noauto

Re: Athlon possible fixes

2001-05-06 Thread Zilvinas Valinskas
On Sun, May 06, 2001 at 07:44:19PM +0300, Jussi Laako wrote: > Seth Goldberg wrote: > > > > and rebooted, the system stayed up a lot longer, but it still crashed (I > > was in Xwindows and the crash was partially written to the log file) > > after around 3 minutes of work in X. > > Hmm, I'm wond

Re: Athlon possible fixes

2001-05-06 Thread Jussi Laako
Seth Goldberg wrote: > > and rebooted, the system stayed up a lot longer, but it still crashed (I > was in Xwindows and the crash was partially written to the log file) > after around 3 minutes of work in X. Hmm, I'm wondering if this could be same bug that I'm seeing with ASUS A7V133 & Duron/80

Re: Athlon possible fixes

2001-05-06 Thread Alan Cox
> There really needs to be a hardware fix... this doesn't stop some > application having it's owne optimised code from breaking on some > hardware (think games and similation software perhaps). prefetch is virtually addresses. An application would need access to /dev/mem or similar. So the only f

Re: Athlon possible fixes

2001-05-05 Thread Seth Goldberg
> > As all this is trying to avoid bus turnarounds (i.e. switching from > reading to writing), wouldn't it be fastest to just trust that the CPU > has at least 4k worth of cache? (and hope for the best that we don't > get interrupted in the meanwhile). > > void copy_page (char *dest, char *sourc

Re: Athlon possible fixes

2001-05-05 Thread Kurt Roeckx
On Sat, May 05, 2001 at 06:26:30PM +0200, Rogier Wolff wrote: > > As all this is trying to avoid bus turnarounds (i.e. switching from > reading to writing), wouldn't it be fastest to just trust that the CPU > has at least 4k worth of cache? (and hope for the best that we don't > get interrupted i

Re: Athlon possible fixes

2001-05-05 Thread Rogier Wolff
> + __asm__ __volatile__ ( > + " movq (%0), %%mm0\n" > + " movq 8(%0), %%mm1\n" > + " movq 16(%0), %%mm2\n" > + " movq 24(%0), %%mm3\n" > + " movq %%mm0, (%1)\n" > + " movq %%mm1, 8(%1)\n" > +

Athlon possible fixes

2001-05-05 Thread Alan Cox
Assuming Manfred's diagnosis is right something like this might fix it *note*: Not tested this is just off the top of my head... --- arch/i386/lib/mmx.c~Sun Apr 15 16:49:54 2001 +++ arch/i386/lib/mmx.c Sat May 5 08:03:17 2001 @@ -57,7 +57,11 @@ : : "r" (from) );