[libvirt] [PATCH v2 2/2] qemu: make sure capability probing process can start

When daemon is killed right in the middle of probing a qemu binary for its capabilities, the VM is left running. Next time the daemon is starting, it cannot start qemu process because the one that's already running does have the pidfile flock()'d. Reported-by: Wang Yufei <james.wangyufei(a)huawei.com&gt; Signed-off-by: Martin Kletzander <mkletzan(a)redhat.com&gt; --- v2: - Don't use "/proc", but simply just try to acquire the pidfile. - https://www.redhat.com/archives/libvir-list/2014-October/msg00320.html src/qemu/qemu_capabilities.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c index 6fcb5c7..8aedf3f 100644 --- a/src/qemu/qemu_capabilities.c +++ b/src/qemu/qemu_capabilities.c @@ -3243,6 +3243,8 @@ virQEMUCapsInitQMP(virQEMUCapsPtr qemuCaps, config.data.nix.path = monpath; config.data.nix.listen = false; + virPidFileForceCleanupPath(pidfile); + VIR_DEBUG("Try to get caps via QMP qemuCaps=%p", qemuCaps); /* -- 2.1.2