Re: RELEASE BLOCKER: Linux doesn't follow x86/x86-64 ABI wrt directionflag

From: H. Peter Anvin
Date: Wed Mar 05 2008 - 17:10:04 EST


Chris Lattner wrote:

On Mar 5, 2008, at 1:34 PM, H. Peter Anvin wrote:

Richard Guenther wrote:
We didn't yet run into this issue and build openSUSE with 4.3 since more than
three month.

Well, how often do you take a trap inside an overlapping memmove()?

How hard is it to change the kernel signal entry path from "pushf" to "pushf;cld"? Problem solved, no?

Not quite, but fixing it in the kernel is easy.

Still breaks for running on all old kernels.

-hpa
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