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[Bug runtime/9940] double calling double calling of uprobes in shared libraries
- From: "dsmith at redhat dot com" <sourceware-bugzilla at sourceware dot org>
- To: systemtap at sources dot redhat dot com
- Date: 25 Mar 2009 20:08:59 -0000
- Subject: [Bug runtime/9940] double calling double calling of uprobes in shared libraries
- References: <20090311164601.9940.fche@redhat.com>
- Reply-to: sourceware-bugzilla at sourceware dot org
------- Additional Comments From dsmith at redhat dot com 2009-03-25 20:08 -------
(In reply to comment #7)
> See commit d2bb12d37037345a77e90aa83512075d78ae968f
>
> PR9940: avoid duplicated calling of uprobes in shared libraries
>
> Add map_p argument to __stp_call_vm_callbacks_with_vma to well
> tune the vma callback.
Unfortunately, as we've seen, this patch isn't correct (and has been reverted).
Here's why. The __stp_call_vm_callbacks_with_vma() function only gets called
when new vmas have been created. That is why there isn't a 'register_p' or
'map_p' argument to it and it calls __stp_call_vm_callbacks() with map_p
hardcoded to 1.
--
http://sourceware.org/bugzilla/show_bug.cgi?id=9940
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