[Date Prev][Date Next]   [Thread Prev][Thread Next]   [Thread Index] [Date Index] [Author Index]

Re: [Libvir] Core dump while executing virsh in RHEL5 .



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:

==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.

(FWIW this is not a core dump that I've ever seen from virsh, but I will have a go at seeing if I can reproduce this on my RHEL 5 box later).

Rich.

--
Emerging Technologies, Red Hat - http://et.redhat.com/~rjones/
Registered Address: Red Hat UK Ltd, Amberley Place, 107-111 Peascod
Street, Windsor, Berkshire, SL4 1TE, United Kingdom.  Registered in
England and Wales under Company Registration No. 03798903

Attachment: smime.p7s
Description: S/MIME Cryptographic Signature


[Date Prev][Date Next]   [Thread Prev][Thread Next]   [Thread Index] [Date Index] [Author Index]