Messages in this thread |  | | From | (Linus Torvalds) | Subject | Re: Freeze on FPU exception with Athlon | Date | 17 Nov 2000 20:10:01 -0800 |
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In article <20001118014019.18006.qmail@web3404.mail.yahoo.com>, =?iso-8859-1?q?Markus=20Schoder?= <markus_schoder@yahoo.de> wrote: >The following small program (linked against glibc 2.1.3) reliably >freezes my system (Athlon Thunderbird CPU) with at least kernels >2.4.0-test10 and 2.4.0-test11-pre5. Even the SysRq keys do not work >after the freeze. > >Older kernels (e.g. 2.3.40) seem to work. Any Ideas?
It certainly doesn't happen for me on any of the machines I work with, but it wouldn't compile as-is for me, so I exchanged the FPU setting with a simpler
asm("fldcw %0": :"m" (0));
which should do the equivalent (ie unmask divide by zero errors). Does that make a difference for you?
Can you try to figure out where it started happening? Ie try test9 and back too, to figure out what might be bringing it on...
I sure as hell hope this isn't an Athlon issue. Can other people try the test-program and see if we have a pattern (ie "it happens only on Athlons", or "Linus is on drugs and it happens for everybody else").
Thanks,
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/
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