From f2a2674f9883e6eb588ce9235161019d31bcedc6 Mon Sep 17 00:00:00 2001 From: zhongjiawei Date: Thu, 5 Jan 2023 16:21:10 +0800 Subject: [PATCH] runc: print cgroup info if cpuset missing occurs --- libcontainer/cgroups/fs/cpuset.go | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/libcontainer/cgroups/fs/cpuset.go b/libcontainer/cgroups/fs/cpuset.go index 550baa4..341d5dc 100644 --- a/libcontainer/cgroups/fs/cpuset.go +++ b/libcontainer/cgroups/fs/cpuset.go @@ -172,6 +172,26 @@ func (s *CpusetGroup) ApplyDir(dir string, r *configs.Resources, pid int) error } func getCpusetSubsystemSettings(parent string) (cpus, mems string, err error) { + defer func() { + if err != nil { + minfo, err1 := ioutil.ReadFile("/proc/self/mountinfo") + if err1 != nil { + logrus.Errorf("Failed to read mountinfo when getSubsystemSettings get an error") + } + + dirInfo := "" + fs, err2 := ioutil.ReadDir(parent) + if err2 != nil { + logrus.Errorf("Failed to read mountinfo when getSubsystemSettings get an error") + } + for _, f := range fs { + dirInfo = dirInfo + " " + f.Name() + } + + logrus.Errorf("Read cpuset cgroup failed, print mountinfo and cgroup info here"+ + "path: %s, mountinfo: [%s], dirinfo: [%s]", parent, string(minfo), dirInfo) + } + }() if cpus, err = cgroups.ReadFile(parent, "cpuset.cpus"); err != nil { return } -- 2.30.0