Re: [libvirt] [PATCH] conf: fix use the wrong type for period

https://bugzilla.redhat.com/show_bug.cgi?id=1140958 When we set period as unsigned int max value 4294967295 and start the vm, qemu will report error. This becuase we define period as a unsigned int and parse it as a unsigned int, but we use it as a int when set it via QMP in qemuMonitorJSONSetMemoryStatsPeriod, so 4294967295 turn to -1 when we send the QMP command. After check the qemu's code this value type should be int, and found a qemu commit 1f9296b for this values range. Seems no other hypervisor vm use this so i add a check when we parse it.

Signed-off-by: Luyao Huang <lhuang(a)redhat.com&gt; --- src/conf/domain_conf.c | 3 ++- src/conf/domain_conf.h | 2 +- 2 files changed, 3 insertions(+), 2 deletions(-) diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c index 127fc91..54bd5aa 100644 --- a/src/conf/domain_conf.c +++ b/src/conf/domain_conf.c @@ -10452,7 +10452,8 @@ virDomainMemballoonDefParseXML(xmlNodePtr node, } ctxt->node = node; - if (virXPathUInt("string(./stats/@period)", ctxt, &def->period) < -1) { + if (virXPathInt("string(./stats/@period)", ctxt, &def->period) < -1 || + def->period < 0) { virReportError(VIR_ERR_XML_ERROR, "%s", _("invalid statistics collection period")); goto error; diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h index ea463cb..ee0f5fd 100644 --- a/src/conf/domain_conf.h +++ b/src/conf/domain_conf.h @@ -1556,7 +1556,7 @@ enum { struct _virDomainMemballoonDef { int model; virDomainDeviceInfo info; - unsigned int period; /* seconds between collections */ + int period; /* seconds between collections */ }; struct _virDomainNVRAMDef { -- 1.8.3.1 -- libvir-list mailing list libvir-list(a)redhat.com https://www.redhat.com/mailman/listinfo/libvir-list