[libvirt] [PATCH] Debug: Record the VM PID in per-VM logs.
For certain situations such as Out-of-memory scenarios, it is helpful to
record the QEMU PID in the per-VM logs, so that correlation with kernel-reported
events is easier.
While this is already recorded in libvirt daemon logs as a DEBUG message,
I believe it merits more attention :-)
Hence introducing it in per-VM log.
Signed-off-by: Prerna Saxena <saxenap.ltc(a)gmail.com>
---
src/qemu/qemu_process.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c
index 4adb14e..2d3b0f5 100644
--- a/src/qemu/qemu_process.c
+++ b/src/qemu/qemu_process.c
@@ -4983,6 +4983,7 @@ qemuProcessLaunch(virConnectPtr conn,
int ret = -1;
int rv;
int logfile = -1;
+ char *msg_buffer = NULL;
qemuDomainLogContextPtr logCtxt = NULL;
qemuDomainObjPrivatePtr priv = vm->privateData;
virCommandPtr cmd = NULL;
@@ -5095,8 +5096,14 @@ qemuProcessLaunch(virConnectPtr conn,
_("Domain %s didn't show up"),
vm->def->name);
rv = -1;
}
+
VIR_DEBUG("QEMU vm=%p name=%s running with pid=%llu",
vm, vm->def->name, (unsigned long long)vm->pid);
+ ignore_value(virAsprintf(&msg_buffer,
+ "QEMU vm=%p name=%s running with pid=%llu",
+ vm, vm->def->name, (unsigned long long)vm->pid));
+ qemuLogOperation(vm, msg_buffer, NULL, logCtxt);
+ virFree(msg_buffer);
} else {
VIR_DEBUG("QEMU vm=%p name=%s failed to spawn",
vm, vm->def->name);
--
1.8.1.2