4:34 a.m.
Hi.
I tried this on Fedora 19, using libvirt 1.0.5 and also tested with
git v1.1.1-maint as well as git master on Ubuntu 12.04.
How to reproduce:
---- python -----
import libvirt as l
c = l.virConnect("test:///default")
v = c.virStream()
-----------------
Here's my GDB session with git master:
$ gdb python
GNU gdb (Ubuntu/Linaro 7.4-2012.04-0ubuntu2.1) 7.4-2012.04
Copyright (C) 2012 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law. Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu".
For bug reporting instructions, please see:
<http://bugs.launchpad.net/gdb-linaro/>...
Reading symbols from /usr/bin/python...(no debugging symbols found)...done.
(gdb) run
Starting program: /usr/bin/python
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Python 2.7.3 (default, Apr 10 2013, 06:20:15)
[GCC 4.6.3] on linux2
Type "help", "copyright", "credits" or "license"
for more information.
>> import libvirt as l
2013-08-20 09:21:39.437+0000:
12678: info : libvirt version: 1.1.1
2013-08-20 09:21:39.437+0000: 12678: debug : virGlobalInit:438 : register drivers
2013-08-20 09:21:39.437+0000: 12678: debug : virRegisterDriver:764 : driver=0x7ffff5dc6760
name=Test
2013-08-20 09:21:39.437+0000: 12678: debug : virRegisterDriver:776 : registering Test as
driver 0
2013-08-20 09:21:39.437+0000: 12678: debug : virRegisterNetworkDriver:611 : registering
Test as network driver 0
2013-08-20 09:21:39.437+0000: 12678: debug : virRegisterInterfaceDriver:638 : registering
Test as interface driver 0
2013-08-20 09:21:39.437+0000: 12678: debug : virRegisterStorageDriver:665 : registering
Test as storage driver 0
2013-08-20 09:21:39.437+0000: 12678: debug : virRegisterNodeDeviceDriver:692 : registering
Test as device driver 0
2013-08-20 09:21:39.437+0000: 12678: debug : virRegisterSecretDriver:719 : registering
Test as secret driver 0
2013-08-20 09:21:39.437+0000: 12678: debug : virRegisterNWFilterDriver:746 : registering
Test as network filter driver 0
2013-08-20 09:21:39.437+0000: 12678: debug : virRegisterSecretDriver:719 : registering
Test as secret driver 0
[19/1965]
2013-08-20 09:21:39.437+0000: 12678: debug : virRegisterNWFilterDriver:746 : registering
Test as network filter driver 0
2013-08-20 09:21:39.437+0000: 12678: debug : virRegisterDriver:764 : driver=0x7ffff5dc7ec0
name=OPENVZ
2013-08-20 09:21:39.437+0000: 12678: debug : virRegisterDriver:776 : registering OPENVZ as
driver 1
2013-08-20 09:21:39.437+0000: 12678: debug : virRegisterDriver:764 : driver=0x7ffff5dc84e0
name=VMWARE
2013-08-20 09:21:39.437+0000: 12678: debug : virRegisterDriver:776 : registering VMWARE as
driver 2
2013-08-20 09:21:39.437+0000: 12678: debug : parallelsRegister:2423 : Can't find
prlctl command in the PATH env
2013-08-20 09:21:39.437+0000: 12678: debug : virRegisterDriver:764 : driver=0x7ffff5dc71a0
name=remote
2013-08-20 09:21:39.437+0000: 12678: debug : virRegisterDriver:776 : registering remote as
driver 3
2013-08-20 09:21:39.437+0000: 12678: debug : virRegisterNetworkDriver:611 : registering
remote as network driver 1
2013-08-20 09:21:39.437+0000: 12678: debug : virRegisterInterfaceDriver:638 : registering
remote as interface driver 1
2013-08-20 09:21:39.437+0000: 12678: debug : virRegisterStorageDriver:665 : registering
remote as storage driver 1
2013-08-20 09:21:39.437+0000: 12678: debug : virRegisterNodeDeviceDriver:692 : registering
remote as device driver 1
2013-08-20 09:21:39.437+0000: 12678: debug : virRegisterSecretDriver:719 : registering
remote as secret driver 1
2013-08-20 09:21:39.437+0000: 12678: debug : virRegisterNWFilterDriver:746 : registering
remote as network filter driver 1
>> c = l.virConnect("test:///default")
>> v = c.newStream()
2013-08-20 09:22:08.120+0000: 12678: debug :
virStreamNew:16922 : conn=0xf, flags=0
Program received signal SIGSEGV, Segmentation fault.
0x00007ffff59be0e9 in virObjectIsClass (anyobj=<optimized out>, klass=0x0) at
util/virobject.c:362
362 return virClassIsDerivedFrom(obj->klass, klass);
(gdb) bt full
#0 0x00007ffff59be0e9 in virObjectIsClass (anyobj=<optimized out>, klass=0x0) at
util/virobject.c:362
obj = 0xf
#1 0x00007ffff5a7fca8 in virStreamNew (conn=0xf, flags=0) at libvirt.c:16926
st = <optimized out>
__func__ = "virStreamNew"
__FUNCTION__ = "virStreamNew"
#2 0x00007ffff5df7f72 in libvirt_virStreamNew (self=<optimized out>,
args=<optimized out>) at libvirt.c:2617
_save = 0x0
c_retval = <optimized out>
conn = 0xf
pyobj_conn = 0x7ffff7edd5a8
flags = 0
#3 0x0000000000466254 in PyEval_EvalFrameEx ()
No symbol table info available.
#4 0x000000000057bd02 in PyEval_EvalCodeEx ()
No symbol table info available.
#5 0x00000000004667f8 in PyEval_EvalFrameEx ()
No symbol table info available.
#6 0x000000000057bd02 in PyEval_EvalCodeEx ()
No symbol table info available.
#7 0x000000000057d991 in PyRun_InteractiveOneFlags ()
No symbol table info available.
#8 0x000000000057dbfa in PyRun_InteractiveLoopFlags ()
No symbol table info available.
#9 0x000000000057e8e3 in PyRun_AnyFileExFlags ()
No symbol table info available.
#10 0x0000000000512cfd in Py_Main ()
No symbol table info available.
#11 0x00007ffff68cc76d in __libc_start_main (main=0x41ba20 <main>, argc=1,
ubp_av=0x7fffffffe5f8, init=<optimized out>, fini=<optimized out>,
rtld_fini=<optimized out>, stack_end=0x7fffffffe5e8) at libc-start.c:226
result = <optimized out>
unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, -4474691967429585002, 4307496,
140737488348656, 0, 0, 4474691967066888086, 4474711353541580694}, mask_was_saved = 0}},
priv = {pad = {0x0, 0x0, 0x57e930, 0x7fffffffe5f8}, data = {
---Type <return> to continue, or q <return> to quit---
prev = 0x0, cleanup = 0x0, canceltype = 5761328}}}
not_first_call = <optimized out>
#12 0x000000000041ba51 in _start ()
No symbol table info available.
Can anybody make any sense out of this already? What else can I do
helping to solve this?
/ Claudio
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