Re: [Libvir] Core dump while executing virsh in RHEL5 .
On Mon, Oct 15, 2007 at 01:10:45PM +0100, Richard W.M. Jones wrote:
Did this problem get fixed while I was away?
What I'm seeing in Veerendra's valgrind log are the following suspicious
messages, although the line numbers don't correspond to the earlier line
numbers from gdb:
yeah, I looked at it but could not find the right mapping
==17508== Invalid read of size 8
==17508== at 0x4C5D0BB: doRemoteOpen (remote_internal.c:323)
==17508== by 0x4C5EABB: remoteNetworkOpen (remote_internal.c:2392)
==17508== by 0x4C395DA: do_open (libvirt.c:447)
==17508== by 0x40A80D: main (virsh.c:4507)
if (uri->user) {
username = strdup (uri->user); <--- line 323
if (!username) goto out_of_memory;
}
==17508== Invalid write of size 8
==17508== at 0x4C5D455: doRemoteOpen (remote_internal.c:761)
==17508== by 0x4C5EABB: remoteNetworkOpen (remote_internal.c:2392)
==17508== by 0x4C395DA: do_open (libvirt.c:447)
==17508== by 0x40A80D: main (virsh.c:4507)
if (query_out) *query_out = NULL; <-- line 761
As I understand the valgrind message, these indicate that the memory
being read/written is not valid (ie. outside any allocated malloc block
or static memory), although I don't understand how those lines could
generate that error.
yesh I could not understand either, I was afraid the compilation with
optimization would lead to the skew of lines, and only a valgrind of
a debug version possibly recompiled locally would be really okay to
check this out. And then the issue got off my radar :-\
Daniel
--
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Daniel Veillard | virtualization library http://libvirt.org/
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