Hi Dave, I build the proccgroup extensions on https://people.redhat.com/anderson/extensions/proccgroup.c. and find a bug on centos 7. the following patch fix it. I also want to ask another question: Why not put various extensions in the extensions directory of the source code? Wang Long (1): extensions: proccgroup: fix the wrong method which detect whether to support getting subsys name extensions/proccgroup.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) -- 1.8.3.1 -- Crash-utility mailing list Crash-utility@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/crash-utility