[Fedora-xen] virt-viewer crashing on F11 with Xen 3.4.1

[Pasi Kärkkäinen]

On Tue, Aug 18, 2009 at 01:18:23PM +0300, Pasi Kärkkäinen wrote:
> On Tue, Aug 18, 2009 at 10:25:28AM +0100, Daniel P. Berrange wrote:
> > On Tue, Aug 18, 2009 at 11:42:00AM +0300, Pasi K?rkk?inen wrote:
> > > Hello.
> > > 
> > > While continuing to test pv_ops dom0 kernels I also rebuilt 
> > > xen-3.4.1-1 src.rpm on F11.
> > > 
> > > I'm able to virt-install new centos 5.3 domU, but it seems virt-viewer
> > > doesn't work. It segfaults on startup. vncviewer works though, and I'm able
> > > to complete the installation with vncviewer.
> > > 
> > > http://pasik.reaktio.net/fedora/virt-viewer-crash.txt
> > > 
> > > virt-viewer works when used with the default xen-3.3.1 (which is included in F11).
> > 
> > strace logs aren't much help with crashes. Try to run it under valgrind and
> > capture the errors, or GDB and get a stack trace
> > 
> 
> Yeah, I was going to try gdb next.. just didn't have time yet. Thanks.
> 

(gdb) run test2vm
Starting program: /usr/bin/virt-viewer test2vm
[Thread debugging using libthread_db enabled]
[New Thread 0xb7c64b70 (LWP 2802)]

Program received signal SIGSEGV, Segmentation fault.
strcmp () at ../sysdeps/i386/i686/strcmp.S:40
40      ../sysdeps/i386/i686/strcmp.S: No such file or directory.
        in ../sysdeps/i386/i686/strcmp.S
Current language:  auto; currently asm
(gdb) bt
#0  strcmp () at ../sysdeps/i386/i686/strcmp.S:40
#1  0xb7f237d2 in virEnumFromString (types=0xb7fb7074, ntypes=2, type=0x0) at util.c:1481
#2  0xb7f3ce4f in virDomainGraphicsTypeFromString (type=0x0) at domain_conf.c:150
#3  0xb7f77490 in xenDaemonParseSxprGraphicsNew (conn=<value optimized out>, def=<value optimized out>, 
    root=0x8089278) at xend_internal.c:2085
#4  0xb7f79c44 in xenDaemonParseSxpr (conn=<value optimized out>, root=<value optimized out>, 
    xendConfigVersion=4, cpus=0x0) at xend_internal.c:2452
#5  0xb7f7d079 in xenDaemonDomainFetch (conn=0x8079ca0, domid=1, name=0x808b190 "test2vm", cpus=0x0)
    at xend_internal.c:3372
#6  0xb7f7d180 in xenDaemonDomainDumpXML (domain=0x808b168, flags=0, cpus=0x0) at xend_internal.c:3416
#7  0xb7f74394 in xenUnifiedDomainDumpXML (dom=0x808b168, flags=0) at xen_unified.c:1034
#8  0xb7f357cf in virDomainGetXMLDesc (domain=0x808b168, flags=0) at libvirt.c:2621
#9  0x0804c116 in viewer_extract_vnc_graphics (port=<value optimized out>, dom=<value optimized out>)
    at main.c:709
#10 viewer_start (port=<value optimized out>, dom=<value optimized out>) at main.c:906
#11 0x0804ca07 in main (argc=2, argv=0xbffff1d4) at main.c:1037
(gdb) 


So something has changed in Xen 3.4.x and now virEnumFromString() fails? 

-- Pasi