[zeromq-dev] Possible memory leak in zmq::msg_t

[Procter, Stephen]

Apologies, forgot to include details of my config:

0MQ 4.0.4, CZMQ 2.1.0
OpenSUSE 13.1 x86_64 (Linux 3.11.10-7)
HP ProBook 440 Notebook, Intel Core i7


-----Original Message-----
From: zeromq-dev-bounces at lists.zeromq.org [mailto:zeromq-dev-bounces at lists.zeromq.org] On Behalf Of Procter, Stephen
Sent: Thursday, April 03, 2014 12:00 PM
To: zeromq-dev at lists.zeromq.org
Subject: [zeromq-dev] Possible memory leak in zmq::msg_t

Hi all,

First, the obligatory note of thanks to Pieter and the 0MQ community for such a beautiful artefact. I have finally managed to engineer an opportunity to use 0MQ at work and am enjoying it immensely!

On to business: I think I'm experiencing this issue (or at least a close relation), first raised against v3.0.2:

  http://lists.zeromq.org/pipermail/zeromq-dev/2011-October/014048.html

I have reproduced it by connecting a PUSH and a PULL socket via inproc, destroying the puller, and then trying to send a message via the pusher. The leak only occurs if the message is at least 30 bytes in length; shorter messages do not provoke a leak.

Minimal test case (in CZMQ, as that's what I'm using, although it looks like the issue is in 0MQ itself) and valgrind output here:

  http://pastebin.com/nTcbQm3z

Best regards,

Steve


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