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Erik Skultety
e9e8565593
admin: Fix memory leak in remoteAdminConnectClose
When virt-admin is run with valgrind, this kind of output can be obtained: HEAP SUMMARY: in use at exit: 134,589 bytes in 1,031 blocks total heap usage: 2,667 allocs, 1,636 frees, 496,755 bytes allocated 88 bytes in 1 blocks are definitely lost in loss record 82 of 128 at 0x4C2A9C7: calloc (in /usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so) by 0x52F6D1F: virAllocVar (viralloc.c:560) by 0x5350268: virObjectNew (virobject.c:193) by 0x53503E0: virObjectLockableNew (virobject.c:219) by 0x4E3BBCB: virAdmConnectNew (datatypes.c:832) by 0x4E38495: virAdmConnectOpen (libvirt-admin.c:209) by 0x10C541: vshAdmConnect (virt-admin.c:107) by 0x10C7B2: vshAdmReconnect (virt-admin.c:163) by 0x10CC7C: cmdConnect (virt-admin.c:298) by 0x110838: vshCommandRun (vsh.c:1224) by 0x10DFD8: main (virt-admin.c:862) LEAK SUMMARY: definitely lost: 88 bytes in 1 blocks indirectly lost: 0 bytes in 0 blocks possibly lost: 0 bytes in 0 blocks still reachable: 134,501 bytes in 1,030 blocks suppressed: 0 bytes in 0 blocks This is because virNetClientSetCloseCallback was being reinitialized incorrectly. By resetting the callbacks in a proper way, the leak is fixed.
LibVirt : simple API for virtualization Libvirt is a C toolkit to interact with the virtualization capabilities of recent versions of Linux (and other OSes). It is free software available under the GNU Lesser General Public License. Virtualization of the Linux Operating System means the ability to run multiple instances of Operating Systems concurrently on a single hardware system where the basic resources are driven by a Linux instance. The library aim at providing long term stable C API initially for the Xen paravirtualization but should be able to integrate other virtualization mechanisms if needed. Daniel Veillard <veillard@redhat.com>
Description
Libvirt provides a portable, long term stable C API for managing the
virtualization technologies provided by many operating systems. It
includes support for QEMU, KVM, Xen, LXC, bhyve, Virtuozzo, VMware
vCenter and ESX, VMware Desktop, Hyper-V, VirtualBox and the POWER
Hypervisor.
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