Re: Help debugging a regression in KVM Module

[Peter Lieven <pl@kamp.de>]

Am 14.08.2015 um 15:01 schrieb Paolo Bonzini:
>
> ----- Original Message -----
>> From: "Peter Lieven" <pl@kamp.de>
>> To: qemu-devel@nongnu.org, kvm@vger.kernel.org
>> Cc: "Paolo Bonzini" <pbonzini@redhat.com>
>> Sent: Friday, August 14, 2015 1:11:34 PM
>> Subject: Help debugging a regression in KVM Module
>>
>> Hi,
>>
>> some time a go I stumbled across a regression in the KVM Module that has been
>> introduced somewhere
>> between 3.17 and 3.19.
>>
>> I have a rather old openSUSE guest with an XFS filesystem which realiably
>> crashes after some live migrations.
>> I originally believed that the issue might be related to my setup with a 3.12
>> host kernel and kvm-kmod 3.19,
>> but I now found that it is also still present with a 3.19 host kernel with
>> included 3.19 kvm module.
>>
>> My idea was to continue testing on a 3.12 host kernel and then bisect all
>> commits to the kvm related parts.
>>
>> Now my question is how to best bisect only kvm related changes (those that go
>> into kvm-kmod)?
> I haven't forgotten this.  Sorry. :(
>
> Unfortunately I'll be away for three weeks, but I'll make it a priority
> when I'm back.

Its not time critical, but I think its worth investigating as it might affect
other systems as well - and maybe XFS is only very sensitive.

I suppose you are going on vacation. Enjoy!

Peter