Re: TclBlend and exec bug

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• In reply to: Robert Oliver: "Re: TclBlend and exec bug"
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Date: 6 Nov 2003 12:18:40 -0800

Robert,

See this Java bug report:
http://developer.java.sun.com/developer/bugParade/bugs/4945203.html

It talks about the handling of SIGCHLD on Linux.

"To get around the problem, you could install an empty SIGCHLD handler to
override the default JDK/JVM handler."

-Dan Johnson

"Robert Oliver" <oliverb@hfl.tc.faa.gov> wrote in message news:<bobsv1$cah$1@faatcrl.tc.faa.gov>...
> I have verified that the SIGCHLD handler is changed in the Linux version but
> not in the Solaris version. I am beginning to suspect the java runtime
> environment. Nevertheless, I'm open to any suggestions anyone here may have.
>
> Thanks,
>
> "Robert Oliver" <oliverb@hfl.tc.faa.gov> wrote in message
> news:bobbi5$591$1@faatcrl.tc.faa.gov...
> > When I use "package require java" in a tcl program under RedHat Linux,
> exec
> > fails with the error:
> >
> > "error waiting for process to exit: child process lost (is SIGCHLD ignored
> > or trapped?)"
> >
> > Our Solaris implementation doesn't seem to have this problem.
> >
> > We compiled the Solaris version using the sun compiler and the Linux
> version
> > using g++ using the same source (tcl 8.4.2, tclblend 1.2.6)
> >
> > It seems that the SIGCHLD handler has been modified by tclblend and not
> put
> > back correctly. Anyone know what's going on with this?
> >
> > Thanks,
> >
> > Bob Oliver
> >
> >

• Previous message: ravi: "Can someone help with this eval that I am trying."
• In reply to: Robert Oliver: "Re: TclBlend and exec bug"
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