[M3devel] This is a pixmap?

[Mika Nystrom]

Why is this message looping over and over?  This and another from
Jay of the same day.. I must have received hundreds of copies by now.
The messages are dated September 3 and 4.

    Mika

Jay K writes:
>--_b2b74cea-5620-4d48-92d7-cba16dcb3507_
>Content-Type: text/plain; charset="iso-8859-1"
>Content-Transfer-Encoding: quoted-printable
>
>
>Trying again due to truncation.
>
>=20
>
> - Jay
>=20
>
>
>From: jay.krell at cornell.edu
>To: m3devel at elegosoft.com
>Subject: This is a pixmap?
>Date: Thu=2C 3 Sep 2009 15:44:17 +0000
>
>
>
>Does this look like a pixmap to anyone?
>This is the parameter to Win32 Join.
>=20
>PROCEDURE Join(t: T): REFANY =3D
>  VAR res: REFANY=3B
>  BEGIN
>    LOCK threadMu DO
>      IF t.joined THEN Die(ThisLine()=2C "attempt to join with thread twice=
>")=3B END=3B
>      WHILE NOT t.completed DO Wait(threadMu=2C t.cond) END=3B
>      res :=3D t.result=3B
>      t.result :=3D NIL=3B
>      t.joined :=3D TRUE=3B
>      t.cond :=3D NIL=3B
>      IF perfOn THEN PerfChanged(t.id=2C State.dead) END=3B
>    END=3B
>    RETURN res=3B
>  END Join=3B
>
>Very very often the crash is of the form of reading a pointer from 16 bytes=
> into t and dereferencing it=2C 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.
>=20
>If we can confirm this is pixmap=2C we can hunt more around in the gui code=