On Thu, 17 Feb 2011, Fisher, Matt wrote:

* Wind River's MemScope tool is used to analyze the allocation and freeing of dynamic memory blocks. MemScope logs every single dynamic memory allocation & free, so when a test run is complete it is easy to see any blocks that have not been freed.

It's a pity it doesn't properly record source+line as well (hello valgrind) as then it'd be slightly easier to fully understand this...

Can you figure out exactly which Curl_add_buffer() call that does this 20 byte malloc?

Curl_http;1;0;20;20                   <--- curl/http.c::Curl_http()
. Curl_add_buffer;1;0;20;20           <--- curl/http.c::Curl_add_buffer()
. . malloc;1;0;20;20                  <--- VxWorks malloc()
. Curl_http;1;1;12;0
. . Curl_add_buffer_init;1;1;12;0
. . . calloc;1;1;12;0
. Curl_http;1;1;488;0
. . Curl_add_buffer;1;1;488;0

What looks suspicious in this flow is that Curl_add_buffer_init() is called _after_ that first 20-byte Curl_add_buffer() call. It feels like that might should be investigated closer. If you can just set a break-point in there and see...

--

 / daniel.haxx.se
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