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RE: RE: [Xen-devel] wget and Zope crashes on post-2.0.6 -testing
| To: | "Kurt Garloff" <garloff@xxxxxxx> |
|---|---|
| Subject: | RE: RE: [Xen-devel] wget and Zope crashes on post-2.0.6 -testing |
| From: | "Ian Pratt" <m+Ian.Pratt@xxxxxxxxxxxx> |
| Date: | Wed, 8 Jun 2005 22:19:35 +0100 |
| Cc: | xen-devel@xxxxxxxxxxxxxxxxxxx, Kip Macy <kip.macy@xxxxxxxxx>, Rich Persaud <rich@xxxxxxxxxxxxx>, Osma Suominen <osma.suominen@xxxxxxxxxxxx>, Gerd Knorr <kraxel@xxxxxxx> |
| Delivery-date: | Wed, 08 Jun 2005 21:18:49 +0000 |
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| Thread-index: | AcVsbOqJjO+6Js7PRjSRRCA6tHSkoQAAhssA |
| Thread-topic: | RE: [Xen-devel] wget and Zope crashes on post-2.0.6 -testing |
> I observed that the first userspace process that uses the FPU
> will SIGFPE once. Afterwards everything runs just fine ...
>
> You description looks like it matches exactly the
> misbehaviour I've been seeing.
Got any more critical bugs you're not telling us about? :-)
> Is attached patch the right way to fix this?
I think that should work (with the obvious kernel_ prefix), but I've
appeneded what we've gone for.
Best,
Ian
--- linux-2.6.11-xen-sparse/include/asm-xen/asm-i386/bugs.h
2005-06-08 22:08:52.000000000 +0100
+++ linux-2.6.11-xen0/include/asm-i386/bugs.h 2005-03-02
07:37:49.000000000 +0000
@@ -107,7 +107,6 @@
"fninit"
: "=m" (*&boot_cpu_data.fdiv_bug)
: "m" (*&x), "m" (*&y));
+ stts();
if (boot_cpu_data.fdiv_bug)
printk("Hmm, FPU with FDIV bug.\n");
}
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