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Description of problem:
When starting a domain, libvirtd leaks memory in virSystemdEscapeName
Version-Release number of selected component (if applicable):
libvirt-1.1.1-4.el7
How reproducible:
100 %
Steps to Reproduce:
1. run libvirtd under valgrind:
# valgrind --leak-check=full libvirtd
2. create a domain
virsh create /dev/stdin <<EOF
> <domain type='qemu'>
> <name>duck</name>
> <memory unit='MiB'>32</memory>
> <os>
> <type arch='x86_64' machine='pc'>hvm</type>
> </os>
> </domain>
> EOF
Domain duck created from /dev/stdin
Actual results:
valgrind shows a leak in virSystemdEscapeName:
==21660== 1,003 bytes in 1 blocks are definitely lost in loss record 712 of 750
==21660== at 0x4A06409: malloc (in /usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so)
==21660== by 0x4A08278: realloc (in /usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so)
==21660== by 0x508462F: virReallocN (viralloc.c:233)
==21660== by 0x5086BA3: virBufferGrow (virbuffer.c:129)
==21660== by 0x5086D71: virBufferAdd (virbuffer.c:165)
==21660== by 0x5086DB7: virBufferAddChar (virbuffer.c:185)
==21660== by 0x50C6B26: virSystemdEscapeName (virsystemd.c:67)
==21660== by 0x50C6D22: virSystemdMakeSliceName (virsystemd.c:108)
==21660== by 0x50C6ED1: virSystemdCreateMachine (virsystemd.c:165)
==21660== by 0x508AFBD: virCgroupNewMachine (vircgroup.c:1708)
==21660== by 0x1BA19201: qemuSetupCgroup (qemu_cgroup.c:667)
==21660== by 0x1BA3045F: qemuProcessStart (qemu_process.c:3831)
Expected results:
virSystemdEscapeName doesn't leak
Additional info:
Upstream patch posted: https://www.redhat.com/archives/libvir-list/2013-September/msg00856.html
Now pushed upstream:
commit 09b48562aac12387a5ff9ac2f27f9a60490f41ee
Author: Ján Tomko <jtomko>
AuthorDate: 2013-09-16 15:27:42 +0200
Commit: Ján Tomko <jtomko>
CommitDate: 2013-09-16 19:26:21 +0200
Free slicename in virSystemdCreateMachine
https://bugzilla.redhat.com/show_bug.cgi?id=1008619
1,003 bytes in 1 blocks are definitely lost in loss record 599 of 635
==404== by 0x50728A7: virBufferAddChar (virbuffer.c:185)
==404== by 0x50BC466: virSystemdEscapeName (virsystemd.c:67)
==404== by 0x50BC6B2: virSystemdMakeSliceName (virsystemd.c:108)
==404== by 0x50BC870: virSystemdCreateMachine (virsystemd.c:169)
==404== by 0x5078267: virCgroupNewMachine (vircgroup.c:1498)
git describe: v1.1.2-129-g09b4856
Downstream patch posted:
http://post-office.corp.redhat.com/archives/rhvirt-patches/2013-September/msg00496.html
This fix is VERIFIED:
Following steps in https://bugzilla.redhat.com/show_bug.cgi?id=1008619#c0
leak in virSystemdEscapeName can be reproduced in
libvirt-1.1.1-4.el7
and disappeared (among other leaks) in
libvirt-1.1.1-6.el7
This request was resolved in Red Hat Enterprise Linux 7.0.
Contact your manager or support representative in case you have further questions about the request.