Re: [Xen-devel] [ovmf bisection] complete test-amd64-i386-xl-qemuu-ovmf-amd64

[Wei Liu <wei.liu2@xxxxxxxxxx>]

On Mon, Oct 19, 2015 at 12:13:45PM +0000, osstest service owner wrote:
> branch xen-unstable
> xen branch xen-unstable
> job test-amd64-i386-xl-qemuu-ovmf-amd64
> test debian-hvm-install
> 
> Tree: linux git://xenbits.xen.org/linux-pvops.git
> Tree: linuxfirmware git://xenbits.xen.org/osstest/linux-firmware.git
> Tree: ovmf https://github.com/tianocore/edk2.git
> Tree: qemu git://xenbits.xen.org/staging/qemu-xen-unstable.git
> Tree: qemuu git://xenbits.xen.org/staging/qemu-upstream-unstable.git
> Tree: xen git://xenbits.xen.org/xen.git
> 
> *** Found and reproduced problem changeset ***
> 
>   Bug is in tree:  ovmf https://github.com/tianocore/edk2.git
>   Bug introduced:  1cce53d38431bbcf9d6eb29a578668ad49b4d9eb
>   Bug not present: bf9f7cea98616e7b780946e61068bd345e454915
> 
> 
>   commit 1cce53d38431bbcf9d6eb29a578668ad49b4d9eb
>   Author: Star Zeng <star.zeng@xxxxxxxxx>
>   Date:   Fri Oct 16 01:31:56 2015 +0000
>   
>       MdeModulepkg VarCheckLib: Return NULL when no property set
>       
>       to variable with wildcard name.
>       
>       VarCheckLib has zeroed property for variable with wildcard name
>       and is waiting for property set. The code should return NULL
>       when no property set to variable with wildcard name, but not
>       return the zeroed property that will impact the functionality of
>       SetVariableCheck.
>       
>       The issue does not appear with VarCheckUefiLib linked as the library
>       just has the expected property set.
>       
>       Cc: Jiewen Yao <jiewen.yao@xxxxxxxxx>
>       Contributed-under: TianoCore Contribution Agreement 1.0
>       Signed-off-by: Star Zeng <star.zeng@xxxxxxxxx>
>       Reviewed-by: Jiewen Yao <jiewen.yao@xxxxxxxxx>
>       
>       git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18611 
> 6f19259b-4bc3-4df7-8a09-765794883524
> 
> 
> For bisection revision-tuple graph see:
>    
> http://logs.test-lab.xenproject.org/osstest/results/bisect/ovmf/test-amd64-i386-xl-qemuu-ovmf-amd64.debian-hvm-install.html
> Revision IDs in each graph node refer, respectively, to the Trees above.
> 

http://logs.test-lab.xenproject.org/osstest/logs/63048/test-amd64-amd64-xl-qemuu-ovmf-amd64/debianhvm.guest.osstest--vnc.jpeg

The screen shot shows that VM is stuck. It isn't immediately clear why
this changeset causes that.

Wei.

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