My findings match what you describe below. There is a bug in sun's JVM. 1.4.2_03 has the problem 1.4.2_04 has the problem but 1.5.0beta2 has fixed the problem.
Thanks for your help, Nate > On 2004.06.15, Nathaniel H <[EMAIL PROTECTED]> wrote: >> AOLserver 4.0.5 gives me the same problem. I could try with 4.0.3, yet >> somehow I don't believe that will help. >> >> > I didn't mention that I am running redhat 7.3 with java version >> 1.4.2_03. > > As I said earlier, I suspect this is a "something is installing a > SIGCHLD handler that's interfering with Tcl's SIGCHLD handler" -- Google > saves the day, yet again: > > > http://groups.google.com/groups?hl=en&lr=&ie=UTF-8&th=d92771131f2fc6a5&seekm=7edf7c7c.0311061218.43987929%40posting.google.com&frame=off > > Similar problem but instead of AOLserver, the OP is talking about using > plain Tcl with tclblend (Java bridge for Tcl) and is seeing the same > symptom. Dan Johnson's reply to the OP says: > > | 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." > > According to Sun, this bug should be fixed in JVM 1.5, and it there's > hints that they may backport the fix to 1.4.x. The following bugs are > related and interesting: > > http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4954748 > http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4763362 > > The second one mentions that J2SE 1.4.2_04 still exhibits this bug even > though Sun claims that this bug has been fixed (in multiple bug > reports). > > Clearly, it's an open issue with Sun's JVM on Linux. On Solaris, > apparently this is not an issue: I believe it has to do with the > difference with Linux threads and other stuff. > > Sun's site indicates that 1.4.2_04 is available for download: maybe they > fixed the bug there. Perhaps try upgrading to that and see if you can > still reproduce the problem. > > -- Dossy > > -- > Dossy Shiobara mail: [EMAIL PROTECTED] > Panoptic Computer Network web: http://www.panoptic.com/ > "He realized the fastest way to change is to laugh at your own > folly -- then you can let go and quickly move on." (p. 70) > > > -- > AOLserver - http://www.aolserver.com/ > > To Remove yourself from this list, simply send an email to > <[EMAIL PROTECTED]> with the > body of "SIGNOFF AOLSERVER" in the email message. You can leave the > Subject: field of your email blank. > -- AOLserver - http://www.aolserver.com/ To Remove yourself from this list, simply send an email to <[EMAIL PROTECTED]> with the body of "SIGNOFF AOLSERVER" in the email message. You can leave the Subject: field of your email blank.
