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[Bug translator/19216] New: kprobe.module("MOD").function("FOO") doesn't work on out of tree modules
- From: "dsmith at redhat dot com" <sourceware-bugzilla at sourceware dot org>
- To: systemtap at sourceware dot org
- Date: Fri, 06 Nov 2015 19:07:11 +0000
- Subject: [Bug translator/19216] New: kprobe.module("MOD").function("FOO") doesn't work on out of tree modules
- Auto-submitted: auto-generated
https://sourceware.org/bugzilla/show_bug.cgi?id=19216
Bug ID: 19216
Summary: kprobe.module("MOD").function("FOO") doesn't work on
out of tree modules
Product: systemtap
Version: unspecified
Status: NEW
Severity: normal
Priority: P2
Component: translator
Assignee: systemtap at sourceware dot org
Reporter: dsmith at redhat dot com
Target Milestone: ---
While working on bug #19186, I've found that
'kprobe.module("MODULE").function("FOO")' probes don't work when MODULE is out
of the kernel tree. If you try this, you get a probe registration error on all
the probes on the module:
WARNING: probe registration error (symbol not found)
(Note that we need to fix the warning message and actually include the probe
name.)
We've got a test case for testing kprobe.module
(testsuite/systemtap.base/kmodule.exp) that tests kprobe.module on in-tree
modules, and we've got a test case for testing regular dwarf-based probes on
out-of-tree modules (testsuite/systemtap.base/modules_out_of_tree.exp), but we
don't have the combination of the two. It shouldn't be hard to add an extra
test to modules_out_of_tree.exp.
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