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, 15 Jun 2010 08:44:19 +0200 From: Andi Kleen <andi@...stfloor.org> To: Tony Luck <tony.luck@...el.com> Cc: Andi Kleen <andi@...stfloor.org>, "Eric W. Biederman" <ebiederm@...ssion.com>, Nils Carlson <nils.carlson@...d.ltu.se>, Ingo Molnar <mingo@...e.hu>, Borislav Petkov <bp@...64.org>, Hidetoshi Seto <seto.hidetoshi@...fujitsu.com>, Mauro Carvalho Chehab <mchehab@...hat.com>, "Young, Brent" <brent.young@...el.com>, Linux Kernel Mailing List <linux-kernel@...r.kernel.org>, "bluesmoke-devel@...ts.sourceforge.net" <bluesmoke-devel@...ts.sourceforge.net>, Doug Thompson <dougthompson@...ssion.com>, Joe Perches <joe@...ches.com>, Thomas Gleixner <tglx@...utronix.de>, Linux Edac Mailing List <linux-edac@...r.kernel.org>, Ingo Molnar <mingo@...hat.com>, Matt Domsch <Matt_Domsch@...l.com> Subject: Re: Hardware Error Kernel Mini-Summit > There was a case mentioned at the collaboration summit > meeting where a BIOS bug mis-reported whether ECC was > enabled - claiming it was on, when in fact it was off. Yes I heard about that, but since it's not a single bit setting there are lots of different ways it could be broken in theory. To check it you really need to have a tool that knows about all the registers and checks them all. It's a bit like checking if someone speaks a foreign language by asking them a single question with a one letter answer. > of the chipset specific code against each other. An EDAC > driver that tells you that ECC is enabled might be lying too, > if it is looking at the wrong bit or the wrong register. Yep. It's asking a question with a one word answer where you don't know the correct answer. -Andi -- ak@...ux.intel.com -- Speaking for myself only. -- 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