| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Date: Tue, 05 Jun 2007 09:16:01 -0700 From: "H. Peter Anvin" <hpa@...or.com> To: Andrew Morton <akpm@...ux-foundation.org> CC: Andi Kleen <ak@...e.de>, Rusty Russell <rusty@...tcorp.com.au>, Matt Mackall <mpm@...enic.com>, linux-kernel@...r.kernel.org Subject: Re: [PATCH] lguest-fix-divide-error-implement-sched_clock Andrew Morton wrote: > On Tue, 5 Jun 2007 16:24:52 +0200 Andi Kleen <ak@...e.de> wrote: > >> On Tuesday 05 June 2007 15:11, Rusty Russell wrote: >>> On Tue, 2007-06-05 at 12:01 +0200, Andi Kleen wrote: >>>>> But TSC is a "required feature", so "cpu_has_tsc" is always true. >>>> Hmm? It isn't. What makes you think so? >>> Interestingly it seems to be only in -mm. >> If it is then it doesn't come out of my tree. Also sounds broken to me. >> The required bits are only for features needed by the compiler's generated >> code where not having them could cause an early crash. Yes. Since there is now a mechanism to get a clean message out, it seemed like a good idea to extend the benefit of static determination. Andi already had in his tree -- and I copied it -- code to deal with stuff like "cpu_has_tsc" as a compile-time constant, eliminating the "else" clause. Depending on the configuration it affects FPU, TSC, 3Dnow. -hpa - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists