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Re: [Qemu-devel] [Bug 899961] Re: qemu/kvm locks up when run 32bit users

From: Avi Kivity
Subject: Re: [Qemu-devel] [Bug 899961] Re: qemu/kvm locks up when run 32bit userspace with 64bit kernel
Date: Tue, 06 Dec 2011 14:36:55 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:8.0) Gecko/20111115 Thunderbird/8.0

On 12/04/2011 07:45 PM, Michael Tokarev wrote:
> Actually after trying to do lots of experiments and finally a git
> bisection, it turned out that the issue only affects qemu-kvm, not
> upstream qemu.  Bisection between qemu-kvm 0.15.0 and 1.0 lead to this
> commit:
> commit 145e11e840500e04a4d0a624918bb17596be19e9
> Merge: ce967f6 b195043
> Author: Avi Kivity <address@hidden>
> Date:   Wed Aug 10 12:06:58 2011 +0300
>     Merge commit 'b195043003d90ea4027ea01cc7a6c974ac915108' into 
> upstream-merge
>     * commit 'b195043003d90ea4027ea01cc7a6c974ac915108': (130 commits)
>    ...
> After which I'm stuck... ;)

32-on-64 doesn't build on Fedora due to glib2-devel.i686 conflicting
with its x86_64 cousin, so I can't reproduce this.  Can you try
bisecting this further?

$ git tag M b195043003d90ea4027ea01cc7a6c974ac915108
$ git bisect start M M^
$ git merge --no-commit M^
[build and test]
$ git merge --abort (or git checkout -f)
$ git bisect [good|bad]

if it happens that M^2 was the bad commit, you'll get a merge conflict. 
In that case do

$ git merge --abort
$ git merge M

(you'll just be testing M again, but it's good to verify)

error compiling committee.c: too many arguments to function

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