Re: Regression: qemu crash of hvm domUs with spice (backtrace included)

[Andreas Kinzler <hfp@posteo.de>]

Is this still current? I made an interesting observation:

I had no problems with SPICE and vanilla Xen 4.5.1 when using it on 
Gentoo with glibc 2.19/gcc 4.6.4.
Segfaults started when I switched to glibc 2.20/gcc 4.9.3 - I did not 
change Xen source code at all.
All this might be related to: 
https://lists.nongnu.org/archive/html/qemu-devel/2015-06/msg02764.html

Andreas

> https://github.com/Fantu/Xen/commits/rebase/m2r-staging
> Latest test with regression based on latest stable-4.5, more exactly:
> https://github.com/Fantu/Xen/commits/rebase/m2r-testing
> Some days ago on same dom0 and domU I tried with latest stable version 
> (that I use on only 2 production servers for now but I not saw the 
> regression), more exactly:
> https://github.com/Fantu/Xen/commits/rebase/m2r-stable-4.5
> Dom0 debian 7 with kernel 3.16 from backports, seabios 1.8.1-2 from 
> unstable and this xen configure:
> ./configure --prefix=/usr --disable-blktap1 --disable-qemu-traditional 
> --disable-rombios 
> --with-system-seabios=/usr/share/seabios/bios-256k.bin 
> --with-extra-qemuu-configure-args="--enable-spice --enable-usb-redir" 
> --disable-blktap2
>
> I suppose that there is unexpected case caused by a backports or 
> missed patch/es to backports from unstable.
> I not found with a fast look rilevant patch to try to revert, can 
> anyone suggest me the more probable point/s for bisect and/or patch to 
> revert or I must try full bisect 4.5.0->stable-4.5?
>