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[Bug runtime/12164] stap script causing ptrace to error with "Device or resource busy"
- From: "jistone at redhat dot com" <sourceware-bugzilla at sourceware dot org>
- To: systemtap at sources dot redhat dot com
- Date: Thu, 11 Nov 2010 21:34:17 +0000
- Subject: [Bug runtime/12164] stap script causing ptrace to error with "Device or resource busy"
- Auto-submitted: auto-generated
- References: <bug-12164-1110@http.sourceware.org/bugzilla/>
http://sourceware.org/bugzilla/show_bug.cgi?id=12164
Josh Stone <jistone at redhat dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |FIXED
AssignedTo|systemtap at sources dot |jistone at redhat dot com
|redhat.com |
--- Comment #6 from Josh Stone <jistone at redhat dot com> 2010-11-11 21:34:07 UTC ---
(In reply to comment #5)
> (In reply to comment #3)
> > I bisected the bug down to b642c901a918a92fdd6b1167ed02dfe4c50cdd3e:
> >
> > Add kprobe user probe semaphore handling.
>
> So, the reason this commit came up is that it started enabling task_finder when
> kprobes are used. We should probably try to narrow this to just for
> SDT-related kprobes, but that's not really the issue here.
Added commit 62f52bb "PR12164: Emit kprobes-sdt goo only when needed"
As for the underlying utrace-ptrace problem, we're unlikely to see any action
on it, since this has only been seen on an outdated F12 kernel. (And F12 is
nearly EOL anyway.) I'll dig a little in the history to see if there's
something you could backport, but otherwise I'll consider this PR fixed by the
commit above.
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