fche changed the topic of #systemtap to: http://sourceware.org/systemtap; email systemtap@sourceware.org if answers here not timely, conversations may be logged
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<jhg_>
more interesting behavior. I manually created a kernel modules entry: /lib/modules/`uname -r`/kernel/fs/openafs/openafs.ko, depmod -a, then stap -v -l 'module("openafs").function("*")' shows the functions just fine
<jhg_>
if I run the module and its daemon, probe module("openafs").function("*").call {} does not trigger anything
<jhg_>
stap -vv stapfile.stp shows that it focuses on the right kmod
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<jhg_>
hmm
<jhg_>
even the full path to the module in the /lib/modules/... does not fire
<fche>
is there perhaps more than one openafs.ko module in play?
<fche>
stap compares buildids at startup and rejects probing mismatched binaries; anything in dmesg?
<jhg_>
could be multiple .ko's in play. I'll delete the extras.
<fche>
stap -vv should identify the one(s) it finds/probes, probably
<jhg_>
nothing obvious in dmesg. just what I'd expect for loading and unloading kmods all the time.
<jhg_>
the path is correct in stap -vv "focused on..."
<fche>
ok; wonder if that's the same one that your modprobe/ afs userspace caused to load
<fche>
try running stap with -DDEBUG_SYMBOLS=1
<jhg_>
output for the startup command: Loading kernel module: /lib/modules/4.4.15/kernel/fs/openafs/openafs.ko