On Tue, Apr 14, 2009 at 04:00:18PM +0100, Daniel P. Berrange wrote: > On Tue, Apr 14, 2009 at 03:56:28PM +0200, Radek Hladik wrote: > > > > When running from command line everything seems to work fine. This is of > > course singlethreaded and potential resource leaks need not to cause a > > problem. However when running from webserver, the result is much more > > interesting. When connecting to qemu:///system (via local socket) using > > <? > > libvirt_connect($uri,true); > > ?> > > I can crash the libvirt daemon after cca 10 page reloads - sometimes > > with message > > Apr 13 15:32:44 kvmtest kernel: libvirtd[8263]: segfault at 4 ip > > 00000039d7223fc0 sp 00007fa6fbc29a88 error 6 in > > libdbus-1.so.3.4.0[39d7200000+3c000] > > in system log, sometimes without any message. > > Crashing the libvirtd daemon is not your fault ! It is supposed to be > completely robust against whatever bad stuff the client may throw at > it. So even if the client has a bug, then it shouldn't crash the daemon. > > If possible it'd be helpful if you can get a stack trace from the daemon. > You can do this by stopping the demon '/etc/init.d/libvirtd stop' and > then running it under GDB directly > > 'gdb /usr/sbin/libvirtd' > > make sure you have libvirt-debuginfo RPM installed if using Fedora, or > have built with '-g' debug option if built manually. Actually now that I remember, there were a definitely a couple of libvirtd crashing bugs in the 0.6.0 release. So well worth upgrading before trying to debug this in any detail > > httpd-2.2.11-6.x86_64 > > php-5.2.9-1.fc11.x86_64 > > php-devel-5.2.9-1.fc11.x86_64 > > libvirt-0.6.0-2.fc11.x86_64 > > qemu-0.9.1-12.fc11.x86_64 > > libvirt-devel-0.6.0-2.fc11.x86_64 > > I'd recommend updating to the latest libvirt 0.6.2 release that should be > available in rawhide now. It fixed quite a few crashes & leaks, which > you may be unlucky enough to be hitting Daniel -- |: Red Hat, Engineering, London -o- http://people.redhat.com/berrange/ :| |: http://libvirt.org -o- http://virt-manager.org -o- http://ovirt.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: GnuPG: 7D3B9505 -o- F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 :| -- Libvir-list mailing list Libvir-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/libvir-list