[libvirt-users] libvirt-python Segfaults

[Hao Liu]

Hi Harish,

I believe the proper establishment of a connection should be done by libvirt.open()
or libvirt.openAuth() or libvirt.openReadOnly(). All of them will return a functional
virConnect instance.

I'm not sure this segfault is worth to fix since instantiate a virConnect directly
is not an expected usage.

Hope this information will help you.

Best Regards,

Hao Liu
+86-010-62608262


----- Original Message -----
> From: "Harish Vishwanath" <harish.shastry at gmail.com>
> To: "libvirt-users" <libvirt-users at redhat.com>
> Sent: Friday, March 20, 2015 1:11:53 PM
> Subject: Re: [libvirt-users] libvirt-python Segfaults
> 
> Trying again.
> 
> Is there another mailer list for libvirt-python related discussions?
> 
> Regards,
> Harish
> 
> On Thu, Mar 19, 2015 at 9:02 PM, Harish Vishwanath < harish.shastry at gmail.com
> > wrote:
> 
> 
> 
> Hello
> 
> I am trying to get libvirt-python working in Ubuntu 14.04 64 bit system. I
> tried installing the binaries from the repo itself:
> 
> 1.
> 
> root at test-vm8-109:/home/test# libvirtd --version
> libvirtd (libvirt) 1.2.2
> root at test-vm8-109:/home/test# python
> Python 2.7.6 (default, Mar 22 2014, 22:59:56)
> [GCC 4.8.2] on linux2
> Type "help", "copyright", "credits" or "license" for more information.
> >>> import libvirt
> >>> libvirt.__file__
> '/usr/lib/python2.7/dist-packages/libvirt.pyc'
> >>> c = libvirt.virConnect("lxc:///")
> >>> c.listAllDomains()
> Segmentation fault (core dumped)
> 
> 
> 2. Installing the latest libvirt-python from pypi (1.2.13) also has the same
> issue.
> 
> 
> This is the gdb bt of the core:
> 
> [Thread debugging using libthread_db enabled]
> Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
> Core was generated by `python test.py'.
> Program terminated with signal SIGSEGV, Segmentation fault.
> #0 0x00007fd8d91b19a9 in virObjectIsClass () from /usr/lib/libvirt.so.0
> (gdb) bt
> #0 0x00007fd8d91b19a9 in virObjectIsClass () from /usr/lib/libvirt.so.0
> #1 0x00007fd8d9268d02 in virConnectListAllDomains () from
> /usr/lib/libvirt.so.0
> #2 0x00007fd8d964db96 in libvirt_virConnectListAllDomains (self=<optimized
> out>, args=<optimized out>)
> at libvirt-override.c:2470
> #3 0x000000000052c6d5 in PyEval_EvalFrameEx ()
> #4 0x000000000055c594 in PyEval_EvalCodeEx ()
> #5 0x000000000052ca8d in PyEval_EvalFrameEx ()
> #6 0x000000000055c594 in PyEval_EvalCodeEx ()
> #7 0x00000000005b7392 in PyEval_EvalCode ()
> #8 0x0000000000469663 in ?? ()
> #9 0x00000000004699e3 in PyRun_FileExFlags ()
> #10 0x0000000000469f1c in PyRun_SimpleFileExFlags ()
> #11 0x000000000046ab81 in Py_Main ()
> #12 0x00007fd8da894ec5 in __libc_start_main (main=0x46ac3f <main>, argc=2,
> argv=0x7fff0fcbd218,
> init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>,
> stack_end=0x7fff0fcbd208)
> at libc-start.c:287
> #13 0x000000000057497e in _start ()
> 
> 
> Am I missing something?
> 
> Regards,
> Harish
> 
> 
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