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This is an automatically generated e-mail. To reply, visit:
<a href="https://reviewboard.asterisk.org/r/2580/">https://reviewboard.asterisk.org/r/2580/</a>
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<p style="margin-top: 0;">On June 1st, 2013, 1:50 a.m. UTC, <b>Russell Bryant</b> wrote:</p>
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<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">Soo ... why is this necessary?</pre>
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<p>On June 1st, 2013, 9:31 a.m. UTC, <b>wdoekes</b> wrote:</p>
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<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">Because it's broken? When
[X] MALLOC_DEBUG
[X] BETTER_BACKTRACES
memory was allocated with ast_calloc() and free'd with free().
If !MALLOC_DEBUG then ast_free==free, and if !BETTER_BACKTRACES then the memory was allocated with regular malloc().
I see now that https://reviewboard.asterisk.org/r/2567/diff/ does the inverse, and replaces the ast_calloc() calls with calloc() instead. That works too.</pre>
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<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">My patch on r2567 was geared only for trunk, so I don't want to much with the MALLOC_DEBUG code in release branches unless we really, really need it. It'd be easy to backport that change for a release branch if someone really wanted it anyway.
So, if this patch goes into 1.8, we can always block it at 11.
For the patch on r2567, I obviously needed to go with the unadorned memory allocation calls to use the backtrace code in astmm.c. In that case, we could still marshal the memory over to ast_* calls in other places like you've done, which is at least more consistent with the memory tracking code.
I'm good with however we want to do this.</pre>
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<p>- Matt</p>
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<p>On May 31st, 2013, 8:43 a.m. UTC, wdoekes wrote:</p>
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<div>Review request for Asterisk Developers.</div>
<div>By wdoekes.</div>
<p style="color: grey;"><i>Updated May 31, 2013, 8:43 a.m.</i></p>
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<b style="color: #575012; font-size: 10pt;">Repository: </b>
Asterisk
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Description </h1>
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<pre style="margin: 0; padding: 0; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">ast_bt_get_symbols can return either an ast_malloc'd or a regular malloc'd list, depending on the value of BETTER_BACKTRACES.
The result was always free'd (not ast_free'd).
This patch:
- copies the malloc'd list from backtrace_symbols into ast_malloc'd memory,
- replaces the free's with ast_free's,
- documents that the ast_bt_get_symbols return value should be freed.
Unsure whether to put it in 1.8, since ast_bt_get_symbols() might be used by an external module.</pre>
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Testing </h1>
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<pre style="margin: 0; padding: 0; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">Compile tested only.</pre>
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Diffs</b> </h1>
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<li>/trunk/main/utils.c <span style="color: grey">(390180)</span></li>
<li>/trunk/main/logger.c <span style="color: grey">(390180)</span></li>
<li>/trunk/main/astobj2.c <span style="color: grey">(390180)</span></li>
<li>/trunk/include/asterisk/logger.h <span style="color: grey">(390180)</span></li>
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<p><a href="https://reviewboard.asterisk.org/r/2580/diff/" style="margin-left: 3em;">View Diff</a></p>
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