Messages in this thread | | | From | (Linus Torvalds) | Subject | Re: 2.4.1-pre1 breaks XFree 4.0.2 and "w" | Date | 11 Jan 2001 00:41:12 -0800 |
| |
In article <3A5C96BB.96B19DB@Hell.WH8.TU-Dresden.De>, Udo A. Steinberg <sorisor@Hell.WH8.TU-Dresden.De> wrote: > >Next backed out the entire XMM and FXSR related stuff and now everything >is fine again. The CPU in question is an AMD Thunderbird (see cpuinfo >below). A friend with a similar setup but a Pentium-3 CPU doesn't seem >to see the problem (couldn't verify myself).
Mind trying it with the "HAVE_FXSR" and "HAVE_XMM" macros in
linux/include/asm-i386/processor.h
fixed? They _should_ be just
#define HAVE_FXSR (cpu_has_fxsr) #define HAVE_XMM (cpu_has_xmm)
instead of testing random bits in CR4 that have different meaning on different CPU's.
I'm surprised actually - the same CR4 tests are in newer 2.2.x kernels, I think. (And in 2.2.x kernels, the above "cpu_has_xxx" do _not_ work unless FP exception testing etc has been fixed in the 2.2.x tree)
Andrea?
Linus - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org Please read the FAQ at http://www.tux.org/lkml/
| |