On Sun, Mar 28, 2010 at 10:19:51PM -0400, John Morrissey wrote:
I wrote (attached here, and to the bug) a quick patch that sets the process name to the same value as the window title.
I'm unsure where to go from here. Should I add support for converting "native" QEMU command lines to libvirt XML? What would that look like, since I'm not modifying the libvirt format? Should it just drop any ,process= from the QEMU command line it's parsing? I also imagine the test cases will need updating.
Yes it would be sufficient to just drop any ',process=' bit.
diff --git a/src/qemu/qemu_conf.c b/src/qemu/qemu_conf.c index 616af6e..a175cd7 100644 --- a/src/qemu/qemu_conf.c +++ b/src/qemu/qemu_conf.c @@ -1126,8 +1126,11 @@ static unsigned long long qemudComputeCmdFlags(const char *help, flags |= QEMUD_CMD_FLAG_ENABLE_KVM; if (strstr(help, "-no-reboot")) flags |= QEMUD_CMD_FLAG_NO_REBOOT; - if (strstr(help, "-name")) + if (strstr(help, "-name")) { flags |= QEMUD_CMD_FLAG_NAME; + if (strstr(help, ",process=")) + flags |= QEMUD_CMD_FLAG_NAME_PROCESS; + } if (strstr(help, "-uuid")) flags |= QEMUD_CMD_FLAG_UUID; if (strstr(help, "-xen-domid")) @@ -3550,7 +3553,15 @@ int qemudBuildCommandLine(virConnectPtr conn,
if (qemuCmdFlags & QEMUD_CMD_FLAG_NAME) { ADD_ARG_LIT("-name"); - ADD_ARG_LIT(def->name); + if (qemuCmdFlags & QEMUD_CMD_FLAG_NAME_PROCESS) { + char *name; + if (virAsprintf(&name, "%s,process=%s", + def->name, def->name) < 0) + goto no_memory; + ADD_ARG_LIT(name);
I think it will be quite misleading to do this. eg a VM named 'foo' # qemu-system-x86_64 -vnc :2 -hda /var/lib/libvirt/images/plain.img -name foo,process=foo Now the process listing shows # ps -w PID TTY TIME CMD 12009 pts/1 00:00:01 bash 12646 pts/1 00:00:00 ksmtuned 14494 pts/1 00:00:02 foo 14508 pts/1 00:00:00 sleep 14511 pts/1 00:00:00 ps which leaves no indication that 'foo' is a QEMU process at all which is rather bad IMHO. At the very least I think we should keep the binary base name here, and have the VM name as a postfix, eg so it shows # ps -w PID TTY TIME CMD 12009 pts/1 00:00:01 bash 12646 pts/1 00:00:00 ksmtuned 14494 pts/1 00:00:02 qemu-system-x86_64 (foo) 14508 pts/1 00:00:00 sleep 14511 pts/1 00:00:00 ps Regards, Daniel -- |: Red Hat, Engineering, London -o- http://people.redhat.com/berrange/ :| |: http://libvirt.org -o- http://virt-manager.org -o- http://deltacloud.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: GnuPG: 7D3B9505 -o- F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 :|