| 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
| ||
|
Message-ID: <CACmZjJ+wb80wCzLfkV4Em2pgd+CeQ4wJMzVzNNeB9zFA9aeERA@mail.gmail.com> Date: Wed, 8 Apr 2015 09:00:37 +0800 From: Pengfei Yuan <0xcoolypf@...il.com> To: Austin S Hemmelgarn <ahferroin7@...il.com> Cc: Mike Galbraith <umgwanakikbuti@...il.com>, linux-kernel@...r.kernel.org Subject: Re: Why not build kernel with -O3 Could you please provide some examples that I can investigate? Thanks! 2015-04-08 2:05 GMT+08:00 Austin S Hemmelgarn <ahferroin7@...il.com>: > On 2015-04-07 06:09, Mike Galbraith wrote: >> On Tue, 2015-04-07 at 15:56 +0800, Pengfei Yuan wrote: >>> I am trying legacy GCC versions. >>> But I am not able to try different architectures. >> >> The point of my reply wasn't to get you to actually test the world ;-) >> >> I was indirectly pointing out that "works for me" is not good enough >> justification. Much checking for safety/benefit required. >> > Safety especially, -O3 is known to cause perfectly standards-compliant > code to break in weird ways in user-space. > > -- 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