[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);
--
1.7.11.4