Date: Sun, 28 Nov 2010 22:47:42 -0500 (EST) From: Garrett Wollman <wollman@hergotha.csail.mit.edu> To: FreeBSD-gnats-submit@FreeBSD.org Subject: bin/152661: parallel make sometimes gets working dir confused Message-ID: <201011290347.oAT3lguR001896@hergotha.csail.mit.edu> Resent-Message-ID: <201011290350.oAT3o9Vt059054@freefall.freebsd.org>
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>Number: 152661 >Category: bin >Synopsis: parallel make sometimes gets working dir confused >Confidential: no >Severity: serious >Priority: low >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Mon Nov 29 03:50:09 UTC 2010 >Closed-Date: >Last-Modified: >Originator: Garrett Wollman >Release: FreeBSD 8.1-RELEASE-p1 amd64 >Organization: MIT Computer Science & Artificial Intelligence Laboratory >Environment: System: FreeBSD hergotha.csail.mit.edu 8.1-RELEASE-p1 FreeBSD 8.1-RELEASE-p1 #1 r215854M: Sat Nov 27 02:07:10 EST 2010 wollman@hergotha.csail.mit.edu:/usr/obj/usr/src/sys/HERGOTHA amd64 System Heimdal expunged; MIT Kerberos installed from ports. >Description: A parallel build of the current OpenAFS source fails in a strange way: one command is not executed in the correct working directory. The top-level OpenAFS Makefile was slightly altered to show the working directory prior to executing the command which fails, and confirms this (seen in the output of "make -P -j2 -dj"): Process 54997 exited or stopped. Job queue is no longer full. Results of making cmdebug: gcc -L/usr/home/buildbot/openafs-master/openafs/lib -O -g -O2 -O -I/usr/home/buildbot/openafs-master/openafs/src/config -I/usr/home/buildbot/openafs-master/openafs/include -I. -I. -O2 -pipe -fPIC -o cmdebug cmdebug.o /usr/home/buildbot/openafs-master/openafs/lib/libsys.a /usr/home/buildbot/openafs-master/openafs/lib/libafsint.a /usr/home/buildbot/openafs-master/openafs/lib/librxkad.a /usr/home/buildbot/openafs-master/openafs/lib/libauth.a /usr/home/buildbot/openafs-master/openafs/lib/libcom_err.a /usr/home/buildbot/openafs-master/openafs/lib/libcmd.a /usr/home/buildbot/openafs-master/openafs/lib/librx.a /usr/home/buildbot/openafs-master/openafs/lib/libsys.a /usr/home/buildbot/openafs-master/openafs/lib/liblwp.a /usr/home/buildbot/openafs-master/openafs/lib/libafsutil.a -lrokenafs Process 54997 exited. *** Completed successfully echo -n 'cwd is '; pwd && cd src && cd venus/test && make all cwd is /usr/home/buildbot/openafs-master/openafs/src/venus cd: can't cd to src Process 54940 exited. *** Error code 2 1 error Process 48701 exited. *** Error code 2 1 error Process 48699 exited. *** Error code 2 1 error The command line starting with "echo" above is from the top-level Makefile, /usr/home/buildbot/openafs-master/openafs/Makefile, and should be executed there, but instead it's executed in the same directory as the previous command. (The original Makefile does not include the echo or the pwd command; the line in question is the only one that mentions "venus/test".) >How-To-Repeat: Check out the current OpenAFS sources from git://git.openafs.org/openafs.git (revision 3f69d7247cfbd809aeed1e4d943c2b21da035654 if I'm reading the entrails correctly). Run regen.sh and configure according to the documentation. Run "make -j2". Watch it fail. Run plain "make" and watch it succeed. Run "gmake -j2" and watch it succeed. >Fix: Only workaround is to use GNU make or to eschew parallel make. >Release-Note: >Audit-Trail: >Unformatted:
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