08:15 <lorddoskias> hello

08:16 <lorddoskias> I'm having problems running the following systemtap command: stap -v -e 'probe vfs.read {printf("read performed\n"); exit()}'

08:16 <lorddoskias> I'm getting the following errors: semantic error: while resolving probe point: identifier 'kernel' at /usr/local/share/systemtap/tapset/linux/vfs.stp:882:18

08:16 <lorddoskias> source: probe vfs.read = kernel.function("vfs_read")

08:16 <lorddoskias> semantic error: missing x86_64 kernel/module debuginfo [man warning::debuginfo] under '/lib/modules/3.12.51-clouder3-slub-debug/build'

08:16 <lorddoskias> semantic error: while resolving probe point: identifier 'vfs' at <input>:1:7

08:16 <lorddoskias> ^

08:16 <lorddoskias> source: probe vfs.read {printf("read performed\n"); exit()}

08:16 <lorddoskias> so /lib/modules/3.12.51-clouder3-slub-debug/build does point to my kernel build directory but what should be the filename of the vmlinux?

08:58 <lorddoskias> ok, so apparently systemtap needed kprobes enabled

15:32 <fche> lorddoskias, that probe will need kprobes support in the kernel, yes

16:02 <irker751> systemtap: fche systemtap.git:refs/heads/master * release-2.9-183-g54d87c8 / man/stap.1 runtime/unwind.c session.cxx: unwind diagnostic improvements http://tinyurl.com/jcfrz82