On Fri, Mar 16, 2012 at 07:46:16PM +0800, Osier Yang wrote:
How to reproduce:
% valgrind -v --leak-check=full virsh migrate mig \ qemu+ssh://$dest/system --unsafe
== 8 bytes in 1 blocks are definitely lost in loss record 1 of 28 == at 0x4A04A28: calloc (vg_replace_malloc.c:467) == by 0x3EB7115FB8: xdr_reference (in /lib64/libc-2.12.so) == by 0x3EB7115F10: xdr_pointer (in /lib64/libc-2.12.so) == by 0x4D1EA84: xdr_remote_string (remote_protocol.c:40) == by 0x4D1EAD8: xdr_remote_domain_migrate_prepare3_ret (remote_protocol.c:4772) == by 0x4D2FFD2: virNetMessageDecodePayload (virnetmessage.c:382) == by 0x4D2789C: virNetClientProgramCall (virnetclientprogram.c:382) == by 0x4D0707D: callWithFD (remote_driver.c:4549) == by 0x4D070FB: call (remote_driver.c:4570) == by 0x4D12AEE: remoteDomainMigratePrepare3 (remote_driver.c:4138) == by 0x4CF7BE9: virDomainMigrateVersion3 (libvirt.c:4815) == by 0x4CF9432: virDomainMigrate2 (libvirt.c:5454) == == LEAK SUMMARY: == definitely lost: 8 bytes in 1 blocks == indirectly lost: 0 bytes in 0 blocks == possibly lost: 0 bytes in 0 blocks == still reachable: 126,995 bytes in 1,343 blocks == suppressed: 0 bytes in 0 blocks
This patch also fixes the leaks in remoteDomainMigratePrepare and remoteDomainMigratePrepare2. --- src/remote/remote_driver.c | 3 +++ 1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/src/remote/remote_driver.c b/src/remote/remote_driver.c index 031167a..4ddebcb 100644 --- a/src/remote/remote_driver.c +++ b/src/remote/remote_driver.c @@ -1963,6 +1963,7 @@ remoteDomainMigratePrepare (virConnectPtr dconn, if (ret.uri_out) *uri_out = *ret.uri_out; /* Caller frees. */
+ VIR_FREE(ret.uri_out); rv = 0;
done: @@ -2018,6 +2019,7 @@ remoteDomainMigratePrepare2 (virConnectPtr dconn, rv = 0;
done: + VIR_FREE(ret.uri_out); remoteDriverUnlock(priv); return rv; error: @@ -4161,6 +4163,7 @@ remoteDomainMigratePrepare3(virConnectPtr dconn, rv = 0;
done: + VIR_FREE(ret.uri_out); remoteDriverUnlock(priv); return rv; error:
ACK :-) Daniel -- Daniel Veillard | libxml Gnome XML XSLT toolkit http://xmlsoft.org/ daniel@veillard.com | Rpmfind RPM search engine http://rpmfind.net/ http://veillard.com/ | virtualization library http://libvirt.org/