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List:       kde-bugs-dist
Subject:    [valgrind] [Bug 371770] Memleak trace back for overwritten or freed memory pointers
From:       Philippe Waroquiers <bugzilla_noreply () kde ! org>
Date:       2016-10-31 21:42:30
Message-ID: bug-371770-17878-OUkx8yYiVt () http ! bugs ! kde ! org/
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https://bugs.kde.org/show_bug.cgi?id=371770

Philippe Waroquiers <philippe.waroquiers@skynet.be> changed:

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--- Comment #1 from Philippe Waroquiers <philippe.waroquiers@skynet.be> ---
Equivalent request have already been done see e.g. bug 74899.

There was even at a moment an experimental tool called omega doing this.
The tool was however never considered working reasonably well, as it is
difficult to detect exactly when the last pointer disappears (IIRC e.g. because
copies of 'dead pointers' can be kept in registers or similar).

We will keep 74899 as the place holder for this enhancement request (in case
someone one day works again on the omega tool or equivalent).

In the meantime, the alternative is to search the most probable last pointer
or last scope having a pointer by doing leak search at regular intervals e.g.
using a client request or by using gdb+vgdb and breakpoints.

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