[M3devel] This is a pixmap?

[Michael Anderson]

Hi All,

The problem is on our end, not Jay's. I've identified the cause and am  
cleaning up now.

Sorry for the spam.

-Mike


Quoting Tony Hosking <hosking at cs.purdue.edu>:

> OK, this is getting ridiculous.  Can someone at Elego give the   
> mail-list server a poke to make sure it is not them resending as   
> middle-man?  Jay, do you have any ideas what could be going on at   
> your end?
>
> On 3 Sep 2009, at 11:44, Jay K wrote:
>
>>
>> Does this look like a pixmap to anyone?
>>
>> This is the parameter to Win32 Join.
>>
>>
>>
>> PROCEDURE Join(t: T): REFANY =
>>  VAR res: REFANY;
>>  BEGIN
>>    LOCK threadMu DO
>>      IF t.joined THEN Die(ThisLine(), "attempt to join with thread   
>> twice"); END;
>>      WHILE NOT t.completed DO Wait(threadMu, t.cond) END;
>>      res := t.result;
>>      t.result := NIL;
>>      t.joined := TRUE;
>>      t.cond := NIL;
>>      IF perfOn THEN PerfChanged(t.id, State.dead) END;
>>    END;
>>    RETURN res;
>>  END Join;
>>
>>
>> Very very often the crash is of the form of reading a pointer from   
>> 16 bytes into t and dereferencing it, plus or minus 4.
>>
>> t is at @ebp +  here.
>>
>> The pointer then is 00200000 at the start of the second line of the  
>>  second dump.
>>
>>
>>
>> If we can confirm this is pixmap, we can hunt more around in the gui code
>
>



-- 
Michael Anderson
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