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* [Bug libgcj/11801] Problems with Process.waitFor() and exitValue() [not found] <20030805050422.11801.mckinlay@redhat.com> @ 2004-07-09 20:21 ` mckinlay at redhat dot com 2004-07-27 18:28 ` daney at gcc dot gnu dot org ` (3 subsequent siblings) 4 siblings, 0 replies; 13+ messages in thread From: mckinlay at redhat dot com @ 2004-07-09 20:21 UTC (permalink / raw) To: gcc-bugs ------- Additional Comments From mckinlay at redhat dot com 2004-07-09 20:21 ------- Some more info in this thread: http://gcc.gnu.org/ml/java-patches/2004-q3/msg00126.html -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11801 ^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug libgcj/11801] Problems with Process.waitFor() and exitValue() [not found] <20030805050422.11801.mckinlay@redhat.com> 2004-07-09 20:21 ` [Bug libgcj/11801] Problems with Process.waitFor() and exitValue() mckinlay at redhat dot com @ 2004-07-27 18:28 ` daney at gcc dot gnu dot org 2004-08-12 16:20 ` cvs-commit at gcc dot gnu dot org ` (2 subsequent siblings) 4 siblings, 0 replies; 13+ messages in thread From: daney at gcc dot gnu dot org @ 2004-07-27 18:28 UTC (permalink / raw) To: gcc-bugs -- What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |ASSIGNED Last reconfirmed|2004-06-25 23:20:06 |2004-07-27 18:28:07 date| | http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11801 ^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug libgcj/11801] Problems with Process.waitFor() and exitValue() [not found] <20030805050422.11801.mckinlay@redhat.com> 2004-07-09 20:21 ` [Bug libgcj/11801] Problems with Process.waitFor() and exitValue() mckinlay at redhat dot com 2004-07-27 18:28 ` daney at gcc dot gnu dot org @ 2004-08-12 16:20 ` cvs-commit at gcc dot gnu dot org 2004-08-12 16:28 ` daney at gcc dot gnu dot org 2004-08-12 17:51 ` mckinlay at redhat dot com 4 siblings, 0 replies; 13+ messages in thread From: cvs-commit at gcc dot gnu dot org @ 2004-08-12 16:20 UTC (permalink / raw) To: gcc-bugs ------- Additional Comments From cvs-commit at gcc dot gnu dot org 2004-08-12 16:20 ------- Subject: Bug 11801 CVSROOT: /cvs/gcc Module name: gcc Changes by: daney@gcc.gnu.org 2004-08-12 16:20:12 Modified files: libjava : Makefile.am Makefile.in configure configure.in posix-threads.cc libjava/gcj : Makefile.in javaprims.h libjava/include: Makefile.in config.h.in libjava/java/lang: PosixProcess.java Runtime.java natPosixProcess.cc libjava/testsuite: Makefile.in Log message: 2004-08-12 David Daney <ddaney@avtrex.com> PR libgcj/11801 * java/lang/PosixProcess.java: Rewrote. * java/lang/natPosixProcess.cc: Rewrote. * java/lang/Runtime.java (execInternal): Declare throws IOException. * gcj/javaprims.h (ConcreteProcess$ProcessManager): Declare. * posix-threads.cc (block_sigchld) New function. (_Jv_ThreadRegister) Use it. (_Jv_ThreadStart) Use it. * configure.in (PLATFORM_INNER_NAT_HDRS): New AC_SUBST() used in... * Makefile.am: ... to specify extra native headers. * configure: Regenerated. * include/config.h: Regenerated. * Makefile.in: Regenerated. * gcj/Makefile.in: Regenerated. * include/Makefile.in: Regenerated. * testsuite/Makefile.in: Regenerated. Patches: http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libjava/Makefile.am.diff?cvsroot=gcc&r1=1.398&r2=1.399 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libjava/Makefile.in.diff?cvsroot=gcc&r1=1.424&r2=1.425 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libjava/configure.diff?cvsroot=gcc&r1=1.225&r2=1.226 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libjava/configure.in.diff?cvsroot=gcc&r1=1.203&r2=1.204 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libjava/posix-threads.cc.diff?cvsroot=gcc&r1=1.34&r2=1.35 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libjava/gcj/Makefile.in.diff?cvsroot=gcc&r1=1.50&r2=1.51 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libjava/gcj/javaprims.h.diff?cvsroot=gcc&r1=1.51&r2=1.52 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libjava/include/Makefile.in.diff?cvsroot=gcc&r1=1.51&r2=1.52 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libjava/include/config.h.in.diff?cvsroot=gcc&r1=1.52&r2=1.53 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libjava/java/lang/PosixProcess.java.diff?cvsroot=gcc&r1=1.5&r2=1.6 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libjava/java/lang/Runtime.java.diff?cvsroot=gcc&r1=1.15&r2=1.16 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libjava/java/lang/natPosixProcess.cc.diff?cvsroot=gcc&r1=1.18&r2=1.19 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libjava/testsuite/Makefile.in.diff?cvsroot=gcc&r1=1.61&r2=1.62 -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11801 ^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug libgcj/11801] Problems with Process.waitFor() and exitValue() [not found] <20030805050422.11801.mckinlay@redhat.com> ` (2 preceding siblings ...) 2004-08-12 16:20 ` cvs-commit at gcc dot gnu dot org @ 2004-08-12 16:28 ` daney at gcc dot gnu dot org 2004-08-12 17:51 ` mckinlay at redhat dot com 4 siblings, 0 replies; 13+ messages in thread From: daney at gcc dot gnu dot org @ 2004-08-12 16:28 UTC (permalink / raw) To: gcc-bugs ------- Additional Comments From daney at gcc dot gnu dot org 2004-08-12 16:28 ------- Fixed by the patch. -- What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |RESOLVED Resolution| |FIXED http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11801 ^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug libgcj/11801] Problems with Process.waitFor() and exitValue() [not found] <20030805050422.11801.mckinlay@redhat.com> ` (3 preceding siblings ...) 2004-08-12 16:28 ` daney at gcc dot gnu dot org @ 2004-08-12 17:51 ` mckinlay at redhat dot com 4 siblings, 0 replies; 13+ messages in thread From: mckinlay at redhat dot com @ 2004-08-12 17:51 UTC (permalink / raw) To: gcc-bugs -- What |Removed |Added ---------------------------------------------------------------------------- Target Milestone|--- |3.5.0 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11801 ^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug libgcj/11801] New: Problems with Process.waitFor() and exitValue() @ 2003-08-05 5:04 bryce at mckinlay dot net dot nz 2003-08-05 5:21 ` [Bug libgcj/11801] " pinskia at physics dot uc dot edu ` (7 more replies) 0 siblings, 8 replies; 13+ messages in thread From: bryce at mckinlay dot net dot nz @ 2003-08-05 5:04 UTC (permalink / raw) To: gcc-bugs PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org. http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11801 Summary: Problems with Process.waitFor() and exitValue() Product: gcc Version: 3.4 Status: UNCONFIRMED Severity: normal Priority: P2 Component: libgcj AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: bryce at mckinlay dot net dot nz CC: gcc-bugs at gcc dot gnu dot org There are some bugs with libgcj's POSIX Runtime.exec implementation. Problem #1: Process.exitValue() only returns the processes exit code if waitFor() has already been called, because only waitFor() ever calls waitpid. Problem #2: Process.waitFor() and Process.exitValue() do not work if they are called from a thread other than the thread which called Runtime.exec(). This seems to be because the pid created in Runtime.exec() is only considered a child of the thread which created it. Currently the problem can be hidden in some cases because Process.waitFor() will actually return 0 if waitpid returns an error other than EINTR. Possible solution: SIGCHLD handler? ^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug libgcj/11801] Problems with Process.waitFor() and exitValue() 2003-08-05 5:04 [Bug libgcj/11801] New: " bryce at mckinlay dot net dot nz @ 2003-08-05 5:21 ` pinskia at physics dot uc dot edu 2003-08-05 5:51 ` bryce at mckinlay dot net dot nz ` (6 subsequent siblings) 7 siblings, 0 replies; 13+ messages in thread From: pinskia at physics dot uc dot edu @ 2003-08-05 5:21 UTC (permalink / raw) To: gcc-bugs PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org. http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11801 pinskia at physics dot uc dot edu changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Ever Confirmed| |1 Last reconfirmed|0000-00-00 00:00:00 |2003-08-05 05:21:48 date| | ------- Additional Comments From pinskia at physics dot uc dot edu 2003-08-05 05:21 ------- I can confirm Problem 1. Problem 2 sounds more like a Linux (Linux Threads or otherwise, glibc) problem rather than a libgcj problem as it will work fine on Darwin as threads are not processes in Darwin. ^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug libgcj/11801] Problems with Process.waitFor() and exitValue() 2003-08-05 5:04 [Bug libgcj/11801] New: " bryce at mckinlay dot net dot nz 2003-08-05 5:21 ` [Bug libgcj/11801] " pinskia at physics dot uc dot edu @ 2003-08-05 5:51 ` bryce at mckinlay dot net dot nz 2003-08-23 1:09 ` dhazeghi at yahoo dot com ` (5 subsequent siblings) 7 siblings, 0 replies; 13+ messages in thread From: bryce at mckinlay dot net dot nz @ 2003-08-05 5:51 UTC (permalink / raw) To: gcc-bugs PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org. http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11801 ------- Additional Comments From bryce at mckinlay dot net dot nz 2003-08-05 05:51 ------- Yes, it is presumably due to linux's 1:1 thread->pid mapping. I guess that POSIX does not specify how waitpid() should interact with threads, in which case it isn't a bug in linuxthreads. In any case, the JRE works correctly on the same system, so its something that needs to be fixed in libgcj. ^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug libgcj/11801] Problems with Process.waitFor() and exitValue() 2003-08-05 5:04 [Bug libgcj/11801] New: " bryce at mckinlay dot net dot nz 2003-08-05 5:21 ` [Bug libgcj/11801] " pinskia at physics dot uc dot edu 2003-08-05 5:51 ` bryce at mckinlay dot net dot nz @ 2003-08-23 1:09 ` dhazeghi at yahoo dot com 2003-09-28 20:39 ` tromey at gcc dot gnu dot org ` (4 subsequent siblings) 7 siblings, 0 replies; 13+ messages in thread From: dhazeghi at yahoo dot com @ 2003-08-23 1:09 UTC (permalink / raw) To: gcc-bugs PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org. http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11801 dhazeghi at yahoo dot com changed: What |Removed |Added ---------------------------------------------------------------------------- Target Milestone|3.4 |--- ^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug libgcj/11801] Problems with Process.waitFor() and exitValue() 2003-08-05 5:04 [Bug libgcj/11801] New: " bryce at mckinlay dot net dot nz ` (2 preceding siblings ...) 2003-08-23 1:09 ` dhazeghi at yahoo dot com @ 2003-09-28 20:39 ` tromey at gcc dot gnu dot org 2003-11-08 1:29 ` pinskia at gcc dot gnu dot org ` (3 subsequent siblings) 7 siblings, 0 replies; 13+ messages in thread From: tromey at gcc dot gnu dot org @ 2003-09-28 20:39 UTC (permalink / raw) To: gcc-bugs PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org. http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11801 ------- Additional Comments From tromey at gcc dot gnu dot org 2003-09-28 19:10 ------- I recently discovered that if your program does not call waitFor() on a process, it will remain as a zombie. This is predictable, of course, since only waitFor() calls wait to reap the child. However, this is a difference from the JDK, and thus arguably a bug. I'm not too concerned about LinuxThreads problems; the world is moving to NPTL... ^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug libgcj/11801] Problems with Process.waitFor() and exitValue() 2003-08-05 5:04 [Bug libgcj/11801] New: " bryce at mckinlay dot net dot nz ` (3 preceding siblings ...) 2003-09-28 20:39 ` tromey at gcc dot gnu dot org @ 2003-11-08 1:29 ` pinskia at gcc dot gnu dot org 2003-11-08 1:38 ` daney at gcc dot gnu dot org ` (2 subsequent siblings) 7 siblings, 0 replies; 13+ messages in thread From: pinskia at gcc dot gnu dot org @ 2003-11-08 1:29 UTC (permalink / raw) To: gcc-bugs ------- Additional Comments From pinskia at gcc dot gnu dot org 2003-11-08 01:29 ------- *** Bug 12956 has been marked as a duplicate of this bug. *** -- What |Removed |Added ---------------------------------------------------------------------------- CC| |daney at gcc dot gnu dot org http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11801 ^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug libgcj/11801] Problems with Process.waitFor() and exitValue() 2003-08-05 5:04 [Bug libgcj/11801] New: " bryce at mckinlay dot net dot nz ` (4 preceding siblings ...) 2003-11-08 1:29 ` pinskia at gcc dot gnu dot org @ 2003-11-08 1:38 ` daney at gcc dot gnu dot org 2003-11-08 1:45 ` bryce at mckinlay dot net dot nz 2004-03-24 6:39 ` pinskia at gcc dot gnu dot org 7 siblings, 0 replies; 13+ messages in thread From: daney at gcc dot gnu dot org @ 2003-11-08 1:38 UTC (permalink / raw) To: gcc-bugs ------- Additional Comments From daney at gcc dot gnu dot org 2003-11-08 01:38 ------- The way to solve the problem on non-NPTL linux systems is to create a thread that is dedicated to forking and waiting for all execed processes. This is the approach that Sun's runtime uses. -- What |Removed |Added ---------------------------------------------------------------------------- Last reconfirmed|2003-08-05 05:21:48 |2003-11-08 01:38:31 date| | http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11801 ^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug libgcj/11801] Problems with Process.waitFor() and exitValue() 2003-08-05 5:04 [Bug libgcj/11801] New: " bryce at mckinlay dot net dot nz ` (5 preceding siblings ...) 2003-11-08 1:38 ` daney at gcc dot gnu dot org @ 2003-11-08 1:45 ` bryce at mckinlay dot net dot nz 2004-03-24 6:39 ` pinskia at gcc dot gnu dot org 7 siblings, 0 replies; 13+ messages in thread From: bryce at mckinlay dot net dot nz @ 2003-11-08 1:45 UTC (permalink / raw) To: gcc-bugs ------- Additional Comments From bryce at mckinlay dot net dot nz 2003-11-08 01:45 ------- That sounds like the right approach. We could possibly simplify a lot of a lot of natPosixProcess.cc by doing this. A related bug I noticed recently is that Process.destroy() leaves a zombie, because it also doesnt call waitpid(). -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11801 ^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug libgcj/11801] Problems with Process.waitFor() and exitValue() 2003-08-05 5:04 [Bug libgcj/11801] New: " bryce at mckinlay dot net dot nz ` (6 preceding siblings ...) 2003-11-08 1:45 ` bryce at mckinlay dot net dot nz @ 2004-03-24 6:39 ` pinskia at gcc dot gnu dot org 7 siblings, 0 replies; 13+ messages in thread From: pinskia at gcc dot gnu dot org @ 2004-03-24 6:39 UTC (permalink / raw) To: gcc-bugs ------- Additional Comments From pinskia at gcc dot gnu dot org 2004-03-24 06:39 ------- *** Bug 14709 has been marked as a duplicate of this bug. *** -- What |Removed |Added ---------------------------------------------------------------------------- CC| |debian-gcc at lists dot | |debian dot org http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11801 ^ permalink raw reply [flat|nested] 13+ messages in thread
end of thread, other threads:[~2004-08-12 17:51 UTC | newest] Thread overview: 13+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- [not found] <20030805050422.11801.mckinlay@redhat.com> 2004-07-09 20:21 ` [Bug libgcj/11801] Problems with Process.waitFor() and exitValue() mckinlay at redhat dot com 2004-07-27 18:28 ` daney at gcc dot gnu dot org 2004-08-12 16:20 ` cvs-commit at gcc dot gnu dot org 2004-08-12 16:28 ` daney at gcc dot gnu dot org 2004-08-12 17:51 ` mckinlay at redhat dot com 2003-08-05 5:04 [Bug libgcj/11801] New: " bryce at mckinlay dot net dot nz 2003-08-05 5:21 ` [Bug libgcj/11801] " pinskia at physics dot uc dot edu 2003-08-05 5:51 ` bryce at mckinlay dot net dot nz 2003-08-23 1:09 ` dhazeghi at yahoo dot com 2003-09-28 20:39 ` tromey at gcc dot gnu dot org 2003-11-08 1:29 ` pinskia at gcc dot gnu dot org 2003-11-08 1:38 ` daney at gcc dot gnu dot org 2003-11-08 1:45 ` bryce at mckinlay dot net dot nz 2004-03-24 6:39 ` pinskia at gcc dot gnu dot org
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