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: Sat, 9 Sep 2017 16:43:50 +0200 From: Markus Trippelsdorf <markus@...ppelsdorf.de> To: Borislav Petkov <bp@...en8.de> Cc: Andy Lutomirski <luto@...nel.org>, Ingo Molnar <mingo@...nel.org>, Thomas Gleixner <tglx@...utronix.de>, Peter Zijlstra <peterz@...radead.org>, LKML <linux-kernel@...r.kernel.org>, Ingo Molnar <mingo@...hat.com>, Tom Lendacky <thomas.lendacky@....com> Subject: Re: Current mainline git (24e700e291d52bd2) hangs when building e.g. perf On 2017.09.09 at 16:33 +0200, Borislav Petkov wrote: > On Sat, Sep 09, 2017 at 04:20:14PM +0200, Markus Trippelsdorf wrote: > > > # rdmsr -a 0x00000410 > > > > 3fffffff > > 0 > > 0 > > 0 > > WTF?! Those should be equal on every CPU. Yikes, we need to pay > attention to those... Grrr. > > # wrmsr -a 0x00000410 0x3ffffbff > > should fix your issue. No, it doesn't work: x4 ~ # rdmsr -a 0x00000410 3fffffff 0 0 0 x4 ~ # wrmsr -a 0x00000410 0x3ffffbff x4 ~ # rdmsr -a 0x00000410 3ffffbff 0 0 0 -- Markus
Powered by blists - more mailing lists