Re: [libvirt] [PATCH 1/3] cgroup: read more data from cgroup cpuacct.usage_percpu

On NUMA machine, the length of string got from file cpuacct.usage_percpu is quite large, so expand the limit of 1024 bytes. errors like: Failed to read file \ '/cgroup/cpuacct/libvirt/qemu/rhel6q/cpuacct.usage_percpu': \ Value too large for defined data type --- src/util/cgroup.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/util/cgroup.c b/src/util/cgroup.c index 8541c7f..5dc0764 100644 --- a/src/util/cgroup.c +++ b/src/util/cgroup.c @@ -360,7 +360,7 @@ static int virCgroupGetValueStr(virCgroupPtr group, VIR_DEBUG("Get value %s", keypath); - rc = virFileReadAll(keypath, 1024, value); + rc = virFileReadAll(keypath, 1024*1024, value);

if (rc< 0) { rc = -errno; VIR_DEBUG("Failed to read %s: %m\n", keypath);