Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > linux.kernel > #1385756

Re: Major KVM issues with kernel 4.5 on the host

From Borislav Petkov <bp@alien8.de>
Newsgroups linux.kernel
Subject Re: Major KVM issues with kernel 4.5 on the host
Date 2016-04-24 02:00 +0200
Message-ID <rrfCV-38Y-1@gated-at.bofh.it> (permalink)
References (5 earlier) <rqofh-2i1-35@gated-at.bofh.it> <rqq7p-3Lk-15@gated-at.bofh.it> <rqt5g-6Er-3@gated-at.bofh.it> <rr8i5-5XD-7@gated-at.bofh.it> <rraMW-7Jc-11@gated-at.bofh.it>
Organization linux.* mail to news gateway

Show all headers | View raw


On Sat, Apr 23, 2016 at 08:43:41PM +0200, Marc Haber wrote:
> Uncorrectable errors would still be identified by the ECC hardware,

Not if the hardware decides to syncflood so that we don't even get to
run the #MC handler...

> and the box wouldn't be perfectly fine with an "old" kernel.

Maybe the "old" kernel is not causing all the required ingredients to
come together for the uncorrectable error to happen. But yeah, I agree,
the fact that 4.4 is fine kinda doesn't fit with the uncorrectable error
theory.

> Yes, that would be in the logs.

Presumably. And see above.

> But we still postulate that the issue does only show on older AMD
> CPUs. Otherwise, I wouldn't be the only one making this experience.

It actually shows only on this one system. At least I'm not aware of any
other report of the same issue. My system with a F10h, rev E is just
fine.

> Do you want me to memtest for 24 hours?

Yeah, that memtest crap never triggers any ECCs. But if you're bored,
why not...

-- 
Regards/Gruss,
    Boris.

ECO tip #101: Trim your mails when you reply.

Back to linux.kernel | Previous | NextPrevious in thread | Find similar | Unroll thread


Thread

Re: Major KVM issues with kernel 4.5 on the host Marc Haber <mh+linux-kernel@zugschlus.de> - 2016-04-21 10:50 +0200
  Re: Major KVM issues with kernel 4.5 on the host Borislav Petkov <bp@alien8.de> - 2016-04-21 14:40 +0200
    Re: Major KVM issues with kernel 4.5 on the host Marc Haber <mh+linux-kernel@zugschlus.de> - 2016-04-21 17:00 +0200
      Re: Major KVM issues with kernel 4.5 on the host Borislav Petkov <bp@alien8.de> - 2016-04-21 19:00 +0200
        Re: Major KVM issues with kernel 4.5 on the host Marc Haber <mh+linux-kernel@zugschlus.de> - 2016-04-21 22:10 +0200
          Re: Major KVM issues with kernel 4.5 on the host Borislav Petkov <bp@alien8.de> - 2016-04-23 18:10 +0200
            Re: Major KVM issues with kernel 4.5 on the host Marc Haber <mh+linux-kernel@zugschlus.de> - 2016-04-23 20:50 +0200
              Re: Major KVM issues with kernel 4.5 on the host "Dr. David Alan Gilbert" <dave@treblig.org> - 2016-04-23 21:20 +0200
              Re: Major KVM issues with kernel 4.5 on the host Borislav Petkov <bp@alien8.de> - 2016-04-24 02:00 +0200

csiph-web