Re: xen 4.17.2 qemu-system-i386 crashes

[xen@xxxxxxxx]

Am 18.08.23 um 02:32 schrieb Chuck Zmudzinski:
> On 8/17/23 7:22 PM, xen@xxxxxxxx wrote:
> > Hello,
> >
> > I am using Archlinux. Last month I built and installed xen-4.17.2pre
> > which works perfectly. Today I built and installed the newly released
> > xen-4.17.2.
> > Now qemu-system-i386 crashes.
> >
> > I attached an excerpt from the log.
> Hmm. I am on Fedora 38, and they just pushed out the 4.17.2 update to me
> yesterday and qemu-system-i386 is working fine with it. This is the version
> info on Fedora 38 that is working:
>
> Xen version info from sudo xl dmesg on Fedora 38:
>
> (XEN) Xen version 4.17.2 (mockbuild@) (gcc (GCC) 13.2.1 20230728 (Red Hat 
> 13.2.1-1)) debug=n Thu Aug 10 22:11:44 UTC 2023
>
> Qemu version info on Fedora 38:
>
> [user@fedora ~]$ qemu-system-i386 -version
> QEMU emulator version 7.2.1 (qemu-7.2.1-2.fc38)
> Copyright (c) 2003-2022 Fabrice Bellard and the QEMU Project developers
> [user@fedora ~]$
>
> So, I think maybe you are using a different Qemu version that does not
> work with Xen 4.17.2.
Xen 4.17.2pre runs on this hardware with both Qemu 8.0.2 and Qemu 8.0.4 
without problems.
On older hardware (Intel Haswell processor) Xen 4.17.2 runs without 
problems with Qemu 8.0.4. Obviously only my newer hardware is affected.
> What version of Qemu are you using? Is it the one from the qemu-xen repo on
> xenbits.xen.org, or one provided by Arch? In any case, Qemu 7.2.1 provided
> by Fedora works fine with the newly released Xen 4.17.2 on my Fedora 38 system.
I use an AUR package that compiles the latest Qemu from the upstream 
sources.
> It looks like the Qemu for xenbits and tagged for Xen 4.17.x is using Qemu 7.0,
> not 7.2, and it looks like the Qemu on xenbits added 8 more commits between the
> 4.17.1 and 4.17.2 tags. So you might try backing out those 8 commits if you are
> building Qemu from the 4.17.2 tag in the qemu-xen repo on xenbits.xen.org.
>
> Just a guess, though.
--
Thanks for your help
Stefan