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Re: Major KVM issues with kernel 4.5 on the host

From Paolo Bonzini <pbonzini@redhat.com>
Newsgroups linux.kernel
Subject Re: Major KVM issues with kernel 4.5 on the host
Date 2016-04-14 19:40 +0200
Message-ID <rnTpg-5FL-15@gated-at.bofh.it> (permalink)
References (3 earlier) <rnxRM-5zu-21@gated-at.bofh.it> <rnzJV-74K-51@gated-at.bofh.it> <rnBC2-8vj-15@gated-at.bofh.it> <rnE6S-1XS-7@gated-at.bofh.it> <rnSCS-4Y2-25@gated-at.bofh.it>
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On 14/04/2016 18:47, Marc Haber wrote:
>> > Ok, then I guess bisection is needed.  Please first try commit
>> > 45bdbcfdf241.
> I did git checkout 45bdbcfdf241 and built the resulting kernel
> 4.4.0-rc5. This one has now been running for ten hours, which is
> threefold the longest time that a faulty kernel has held before a VM
> experienced corruption. So I guess, that one is fine.

Interesting, this means it's not a KVM bug.  You can ignore my patch
from yesterday (though we'll get it in anyway).

> Since 4.5.0-rc1 is bad, I guess I do:
> 
> git checkout 45bdbcfdf241
> git bisect start
> git bisect good
> git bisect bad v4.5.0-rc1

This is correct but you also want to do

git bisect good 4.4.0
git bisect good 4.4.0-rc5

so that bisection basically works through the commits in the merge window.

Thanks,

Paolo

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Thread

Re: Major KVM issues with kernel 4.5 on the host Paolo Bonzini <pbonzini@redhat.com> - 2016-04-13 22:40 +0200
  Re: Major KVM issues with kernel 4.5 on the host Marc Haber <mh+linux-kernel@zugschlus.de> - 2016-04-13 23:00 +0200
  Re: Major KVM issues with kernel 4.5 on the host Marc Haber <mh+linux-kernel@zugschlus.de> - 2016-04-14 00:40 +0200
    Re: Major KVM issues with kernel 4.5 on the host Paolo Bonzini <pbonzini@redhat.com> - 2016-04-14 03:20 +0200
      Re: Major KVM issues with kernel 4.5 on the host Marc Haber <mh+linux-kernel@zugschlus.de> - 2016-04-14 07:30 +0200
      Re: Major KVM issues with kernel 4.5 on the host Marc Haber <mh+linux-kernel@zugschlus.de> - 2016-04-14 08:10 +0200
      Re: Major KVM issues with kernel 4.5 on the host Marc Haber <mh+linux-kernel@zugschlus.de> - 2016-04-14 18:50 +0200
        Re: Major KVM issues with kernel 4.5 on the host Paolo Bonzini <pbonzini@redhat.com> - 2016-04-14 19:40 +0200
          Re: Major KVM issues with kernel 4.5 on the host Marc Haber <mh+linux-kernel@zugschlus.de> - 2016-04-14 19:50 +0200

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