Re: [Qemu-devel] qemu: qemu_mutex_lock: Invalid argument

[Rick Vernam]

On Wednesday 15 September 2010 05:46:55 Yoshiaki Tamura wrote:
> Hi Rick,
> 
> 2010/9/15 Corentin Chary <address@hidden>:
> > On Tue, Sep 14, 2010 at 10:00 PM, Rick Vernam <address@hidden> wrote:
> >> I don't have nearly enough info to file a proper bug report.
> >> 
> >> I am running qemu-kvm-0.13.0 rc1
> >> starting qemu like so:
> >> /root/qemu/bin/qemu-system-x86_64 -cpu host -enable-kvm -drive
> >> file=/root/qemu/w2k3_server.raw,if=virtio,aio=native -net
> >> nic,model=virtio,macaddr=52:54:00:12:34:56 -net tap,ifname=tap0
> >> -localtime - usb -usbdevice tablet -vga std -vnc :25581 -monitor stdio
> >> -m 512 -runas rick
> >> 
> >> Every now and again, qemu will up and quit leaving only the following
> >> message: qemu: qemu_mutex_lock: Invalid argument
> >> 
> >> At the moment I can't stop what I'm doing to go learn how to debug qemu,
> >> but I'd be happy if anybody is interested in suggesting something I
> >> could do to provide some info about this bug...
> >> Would it be helpful to build with -O0 -g and run in gdb, then get a bt
> >> when it dies?
> >> I haven't put this into production yet, so I can still afford downtime &
> >> re- compiles...etc.
> >> 
> >> thanks..
> >> 
> >> host machine is:
> >> 2.6.32-gentoo-r7 x86_64 Intel(R) Xeon(R) CPU E5450 @ 3.00GHz
> >> GenuineIntel GNU/Linux
> >> 
> >> guest os is Windows Server 2003, Standard Edition.  Service Pack 2.
> >> Red Het VirtIO Ethernet Adapter Driver Version: 5.1.209.605
> >> Red Hat VirtIO SCSI Controller Driver Version: 6.0.0.10
> >> 
> >> here is how I ran configure:
> >> ./configure --prefix=/root/qemu --target-list=x86_64-softmmu
> >> --extra-cflags="- march=native -O2 -pipe"
> >> --extra-ldflags="-march=native -O2 -pipe" --audio-drv- list=
> >> --audio-card-list= --disable-curses --disable-curl --enable-vnc-tls --
> >> enable-vnc-sasl --enable-vnc-jpeg --enable-vnc-png --enable-vnc-thread
> > 
> > There is two patch for that
> > http://patchwork.ozlabs.org/patch/62420/
> 
> Can you try the patch above?  If it works, I need to ask Anthony to
> pick it up for 0.13.
I have not encountered this problem since applying the patch.  So I sure would 
like to see it in 0.13.

Thanks,
-Rick

> 
> Thanks,
> 
> Yoshi
> 
> > http://patchwork.ozlabs.org/patch/62263/
> > 
> > On of these patch is already in master:
> > http://git.qemu.org/qemu.git/commit/?id=ac71103dc6b408775ae72067790ab3679
> > 12f75ec
> > 
> > --
> > Corentin Chary
> > http://xf.iksaif.net