On Wed, Dec 24, 2008 at 11:17 PM, Nicholas Nethercote
<[email protected]> wrote:
> On Wed, 24 Dec 2008, Bart Van Assche wrote:
>
>>> The log file seems to have output mixed up from multiple pids.
>>> For example here is a sample. The errors from processes 15155 and 15151
>>> are appearing at the same time and making the error message unusable.
>>>
>>>
>>> ==15155== ==15151==    by 0x805EE02: agent(int, unsigned char**)
>>> (Agent.cpp:153)
>>> ==15151==    by 0x8057790: main (AgentMain.cpp:125)
>>> ==15155==
>>> ====15151==
>>> ==15151=14 bytes in 112 bytes in 1 blocks are still reachable in loss
>>> record 272 of 4,611===15151==
>>
>> I don't know whether the XML option will solve this issue, but if I
>> remember correctly, this issue was solved in r7875. Can you please
>> test whether the above issue is solved in the trunk version of
>> Valgrind ? You can find instructions for downloading and compiling the
>> trunk on Valgrind's web page.
>
> I doubt that r7875 solves it -- without interprocess communication or file
> locking, if two processes are trying to write to the same file you'll get a
> jumble, no?

As far as I can see the original question is about a multithreaded
application, not about multiple processes. r7875 buffers Valgrind's
message output per line such that output written by different threads
does not get mixed up.

Bart.

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