I'm not sure its explained by just by virtue of the jvm running. I have an out-of-the-box 4.0.3 running nsjk2 v1.3 with Tomcat 4.1.27 and am able to successfully exec both commands below (I ran them from the control port) When I get a chance I will try and run a test with 4.0.1 and see if it behaves differently.
-Elizabeth Barry Books wrote on 6/8/04, 3:10 PM: > I have not tracked it specifically to the Oracle libs but that's my > best guess. I'm not running the nsjk2 module. Currently I got around > the problem by building the TCL Posix signal routines and reseting the > signal. I think I've other discussion about the jvm catching SIGCHLD. > > > On Tuesday, June 08, 2004, at 12:14PM, Dossy <[EMAIL PROTECTED]> wrote: > > >On 2004.06.08, Nathaniel H <[EMAIL PROTECTED]> wrote: > >> AOlserver 4.0.0 to AOlserver 4.0.1 introduces an exec problem. On > 4.0.0 I > >> can run both: > >> > >> 1. [exec /bin/bash -c "ls -al"] > >> 2. [exec /bin/bash -c "/opt/myscript"] > >> > >> But on AOLserver 4.0.1 (with nsjk2) number 2. fails with this error. > >> > >> error waiting for process to exit: child process lost (is SIGCHLD > ignored > >> or trapped?) > >> while executing > >> > >> You should also know that, thanks to Elizabeth nsjk2, I am running > nsjk2 > >> on the problem 4.0.1 version. > > > >This sounds exactly like the problem that Barry Books reported earlier > >on this list about nsora and exec. The newer Oracle client library > >apparently either installs its own SIGCHLD signal handler, or throws > >SIGCHLD itself. This interferes with Tcl's SIGCHLD handler, therefore > >when Tcl's [exec] executes something, it wants to be able to catch the > >SIGCHLD of the child process when it dies. Unfortunately, the signal > >gets handled elsewhere, so Tcl doesn't see it, and thus [exec] complains > >about it. > > > >I'm guessing that nsjk2 or the JVM, too, installs a SIGCHLD handler > >replacing Tcl's handler. > > > >I don't know enough about nsjk2 or the various JVMs to know the answer > >to this. > > > >-- 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. -- 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.
