[Tcl-bugs] [ tktoolkit-Bugs-745189 ] tkfbox causes error on fork

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Bugs item #745189, was opened at 2003-05-28 22:29
Message generated for change (Comment added) made by dkf
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Category: 37. [tk_get*File]
Group: 8.4.3
Status: Open
>Resolution: Works For Me
Priority: 5
Submitted By: Alan Parslow (normanwiz)
>Assigned to: Donal K. Fellows (dkf)
Summary: tkfbox causes error on fork

Initial Comment:
I think lines 849 and 853 of tkfbox.tcl need a catch
round them (otherwise "configure -state" can be, and
is,  called on a label).  Anyway, when the catch is
added it fixes the problem and our existing code works
fine again. Was their a change here? Platform is Linux
kernel 2.4.20 (SuSE 8.2 Pro). Seems to work fine when
there are no children.

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>Comment By: Donal K. Fellows (dkf)
Date: 2003-05-29 09:29

Message:
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I cannot see how that code could be calling 'configure
-state' on a label other than by memory corruption.  If
there is memory corruption then, alas, all bets are off. 
Since fork() is not used in the Tcl/Tk core except within
TclpCreateProcess() which has been thoroughly tested over a
long period of time, I suspect that the fault is elsewhere. 
What code contains the fork()?

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