{"thread":{"id":"27523","subject":"Unable to fork off sideband demultiplexer","startedAt":"2011-06-01T14:16:32Z","lastAt":"2011-06-04T19:32:39Z","messageCount":15,"participants":["Randy Brandenburg","Junio C Hamano","Jeff King","Ben Walton","Brandon Casey"],"isPatch":false,"patchVersion":null,"patchTotal":null},"messages":[{"id":"169115","messageId":"loom.20110601T161508-689@post.gmane.org","threadId":"27523","inReplyTo":null,"subject":"Unable to fork off sideband demultiplexer","fromName":"Randy Brandenburg","fromEmail":"randy.brandenburg@woh.rr.com","sentAt":"2011-06-01T14:16:32Z","receivedAt":"2011-06-01T14:16:32Z","isPatch":false,"sender":{"key":"randy.brandenburg@woh.rr.com","avatar":null},"body":"I have searched high and low to find a resolution to this error I am seeing \nwhen attempting to push or pull from a repository (either remote or on the same \nmachine). The error reported is as follows: \n\n# git push\nerror: cannot create thread: Unknown error \nfatal: fetch-pack: Unable to fork off sideband demultiplexer \nBroken pipe \n\n# git pull\nerror: cannot create thread: Unknown error \nfatal: receive-pack: Unable to fork off sideband demultiplexer \nBroken pipe \n\nThis is a Solaris 9 installation (git-1.7.5-sol9-sparc-local.gz obtained from \nSunfreeware.com) including all of the required package dependencies listed. \nI followed the same install on a Solaris 10 box and have no issues. Not sure if \nthis is a permissions issue or something not configured \ncorrectly.\n \nAny help is greatly appreciated. \n"},{"id":"169131","messageId":"7vk4d5h3qt.fsf@alter.siamese.dyndns.org","threadId":"27523","inReplyTo":"loom.20110601T161508-689@post.gmane.org","subject":"Re: Unable to fork off sideband demultiplexer","fromName":"Junio C Hamano","fromEmail":"gitster@pobox.com","sentAt":"2011-06-01T17:15:54Z","receivedAt":"2011-06-01T17:15:54Z","isPatch":false,"sender":{"key":"gitster@pobox.com","avatar":"https://avatars.githubusercontent.com/u/54884?v=4"},"body":"Randy Brandenburg writes:\n\n> # git push\n> error: cannot create thread: Unknown error \n\nPerhaps threading library does not really work on your platform? Does\nrebuilding git with \"make NO_PTHREADS=YesPlease\" help?\n"},{"id":"169132","messageId":"20110601173524.GF7132@sigill.intra.peff.net","threadId":"27523","inReplyTo":"7vk4d5h3qt.fsf@alter.siamese.dyndns.org","subject":"Re: Unable to fork off sideband demultiplexer","fromName":"Jeff King","fromEmail":"peff@peff.net","sentAt":"2011-06-01T17:35:25Z","receivedAt":"2011-06-01T17:35:25Z","isPatch":false,"sender":{"key":"peff@peff.net","avatar":"https://avatars.githubusercontent.com/u/45925?v=4"},"body":"On Wed, Jun 01, 2011 at 10:15:54AM -0700, Junio C Hamano wrote:\n\n> Randy Brandenburg writes:\n> \n> > # git push\n> > error: cannot create thread: Unknown error \n> \n> Perhaps threading library does not really work on your platform? Does\n> rebuilding git with \"make NO_PTHREADS=YesPlease\" help?\n\nI suspect it is more subtle than that. We've had several people recently\nreporting the same issue, and all are using pre-built binaries on\nSolaris 9. Given the weird errno value (\"unknown error\"), my guess is\nthat the packages are built on Solaris 10, and there is some ABI\nincompatibility between the two platforms.\n\nI'd be curious if building on Solaris 9, even without NO_PTHREADS set,\nfixes the issue.\n\n-Peff\n"},{"id":"169139","messageId":"loom.20110601T210757-955@post.gmane.org","threadId":"27523","inReplyTo":"20110601173524.GF7132@sigill.intra.peff.net","subject":"Re: Unable to fork off sideband demultiplexer","fromName":"Randy Brandenburg","fromEmail":"randy.brandenburg@woh.rr.com","sentAt":"2011-06-01T19:10:19Z","receivedAt":"2011-06-01T19:10:19Z","isPatch":false,"sender":{"key":"randy.brandenburg@woh.rr.com","avatar":null},"body":"Jeff King peff.net> writes:\n> \n> I suspect it is more subtle than that. We've had several people recently\n> reporting the same issue, and all are using pre-built binaries on\n> Solaris 9. Given the weird errno value (\"unknown error\"), my guess is\n> that the packages are built on Solaris 10, and there is some ABI\n> incompatibility between the two platforms.\n> \n> I'd be curious if building on Solaris 9, even without NO_PTHREADS set,\n> fixes the issue.\n> \n> -Peff\n> \n\nThank you for the insight. I will attempt to rebuild on the target platform and \nsee what happens. \n\nI will post the results when I have an answer on whther that helped or not.\n"},{"id":"169202","messageId":"loom.20110602T172442-653@post.gmane.org","threadId":"27523","inReplyTo":"loom.20110601T210757-955@post.gmane.org","subject":"Re: Unable to fork off sideband demultiplexer","fromName":"Randy Brandenburg","fromEmail":"randy.brandenburg@woh.rr.com","sentAt":"2011-06-02T15:29:04Z","receivedAt":"2011-06-02T15:29:04Z","isPatch":false,"sender":{"key":"randy.brandenburg@woh.rr.com","avatar":null},"body":"Randy Brandenburg woh.rr.com> writes:\n\n> \n> Jeff King peff.net> writes:\n> > \n> > I suspect it is more subtle than that. We've had several people recently\n> > reporting the same issue, and all are using pre-built binaries on\n> > Solaris 9. Given the weird errno value (\"unknown error\"), my guess is\n> > that the packages are built on Solaris 10, and there is some ABI\n> > incompatibility between the two platforms.\n> > \n> > I'd be curious if building on Solaris 9, even without NO_PTHREADS set,\n> > fixes the issue.\n> > \n> > -Peff\n> > \n> \n> Thank you for the insight. I will attempt to rebuild on the target platform \nand \n> see what happens. \n> \n> I will post the results when I have an answer on whther that helped or not.\n> \n> \n\nI rebuilt git-1.7.5 from source on the Solaris 9 platform with gcc-3.4.6, GNU \nmake 3.82, and GNU install (from coreutils 8.11). Following these steps\n\n----------------------------------------------------------------------------\n# ./configure CC=gcc\n\nEdit the Makefile - set the path to \"ar\", \"gcc\" and GNU \"install\".\nCC = /usr/local/bin/gcc\nAR = /usr/ccs/bin/ar\nINSTALL = /usr/local/bin/install\nLook for ifeq ($(uname_S),SunOS) and set INSTALL to /usr/lcoal/bin/install\n\n# gmake NO_TCLTK=1 NO_CURL=1 NO_PTHREADS=YesPlease install prefix=/opt/sfw\n# git --version\ngit version 1.7.5\n----------------------------------------------------------------------------\nPreliminary testing indicates a working system -- will investigate thourough \ntoday and tomorrow.\n\nThanks for the tips!\n\n- Randy\n"},{"id":"169217","messageId":"20110602192927.GA21262@sigill.intra.peff.net","threadId":"27523","inReplyTo":"loom.20110602T172442-653@post.gmane.org","subject":"Re: Unable to fork off sideband demultiplexer","fromName":"Jeff King","fromEmail":"peff@peff.net","sentAt":"2011-06-02T19:29:27Z","receivedAt":"2011-06-02T19:29:27Z","isPatch":false,"sender":{"key":"peff@peff.net","avatar":"https://avatars.githubusercontent.com/u/45925?v=4"},"body":"On Thu, Jun 02, 2011 at 03:29:04PM +0000, Randy Brandenburg wrote:\n\n> I rebuilt git-1.7.5 from source on the Solaris 9 platform with gcc-3.4.6, GNU \n> make 3.82, and GNU install (from coreutils 8.11). Following these steps\n> \n> ----------------------------------------------------------------------------\n> # ./configure CC=gcc\n\nHmm, I would have thought configure would set up most of what you needed\nbelow, but it's possible our autoconf is not very complete (unlike many\nprojects, it's not necessary to use it to build).\n\n> Edit the Makefile - set the path to \"ar\", \"gcc\" and GNU \"install\".\n> CC = /usr/local/bin/gcc\n> AR = /usr/ccs/bin/ar\n> INSTALL = /usr/local/bin/install\n> Look for ifeq ($(uname_S),SunOS) and set INSTALL to /usr/lcoal/bin/install\n\nRather than edit the Makefile, you can put these in \"config.mak\" which\nis sourced automatically by the Makefile (after the defaults are set up,\nso you can override them).\n\n> # gmake NO_TCLTK=1 NO_CURL=1 NO_PTHREADS=YesPlease install prefix=/opt/sfw\n> # git --version\n> git version 1.7.5\n> ----------------------------------------------------------------------------\n> Preliminary testing indicates a working system -- will investigate thourough \n> today and tomorrow.\n\nGreat, I'm glad it's working. With NO_PTHREADS set, you will be\nfork()ing off the sideband process instead of using a thread. So you\navoid pthreads altogether and it works, but you can't do multi-threaded\ndelta compression.\n\nIf you build without NO_PTHREADS set on a Solaris 9 box, does it work on\nthat same box? That would confirm or deny my ABI compatibility theory\n(and hopefully point us in the right direction for the sunfreeware\npeople to build a binary that works on Solaris 9 and 10).\n\n-Peff\n"},{"id":"169220","messageId":"1307043315-sup-5292@pinkfloyd.chass.utoronto.ca","threadId":"27523","inReplyTo":"loom.20110601T161508-689@post.gmane.org","subject":"Re: Unable to fork off sideband demultiplexer","fromName":"Ben Walton","fromEmail":"bwalton@artsci.utoronto.ca","sentAt":"2011-06-02T19:36:32Z","receivedAt":"2011-06-02T19:36:32Z","isPatch":false,"sender":{"key":"bdwalton@gmail.com","avatar":"https://avatars.githubusercontent.com/u/396061?v=4"},"body":"Excerpts from Randy Brandenburg's message of Wed Jun 01 10:16:32 -0400 2011:\n\nHi Randy,\n\n> This is a Solaris 9 installation (git-1.7.5-sol9-sparc-local.gz\n> obtained from Sunfreeware.com) including all of the required package\n> dependencies listed. I followed the same install on a Solaris 10\n> box and have no issues. Not sure if this is a permissions issue or\n> something not configured correctly.\n\nHave you considered the OpenCSW git[1] packages? I'm a little stale\nat 1.7.3 right now but I have 1.7.5 ready to go...\n\nIt's built with thread support and should work on both 9 and 10.\n\nThanks\n-Ben\n\n[1] http://opencsw.org/packages/git\n--\nBen Walton\nSystems Programmer - CHASS\nUniversity of Toronto\nC:416.407.5610 | W:416.978.4302\n"},{"id":"169250","messageId":"loom.20110603T142235-877@post.gmane.org","threadId":"27523","inReplyTo":"1307043315-sup-5292@pinkfloyd.chass.utoronto.ca","subject":"Re: Unable to fork off sideband demultiplexer","fromName":"Randy Brandenburg","fromEmail":"randy.brandenburg@woh.rr.com","sentAt":"2011-06-03T12:29:21Z","receivedAt":"2011-06-03T12:29:21Z","isPatch":false,"sender":{"key":"randy.brandenburg@woh.rr.com","avatar":null},"body":"Ben Walton artsci.utoronto.ca> writes:\n\nHey Ben,\n\n> \n> Have you considered the OpenCSW git[1] packages? I'm a little stale\n> at 1.7.3 right now but I have 1.7.5 ready to go...\n> \n\nI did download the 1.7.3.2 version using pkg-get as the next option if I \ncouldnt get the 1.7.5 to build and install. I would be all for a working \npackage install if available, since we will have to install Git on a developer \nmachine each time one is upgraded from a standard install of Solaris 9. I would \nlike to add a package to our install instead of actually building from source \neach time.\n\nPlease keep me posted when the package is available for download!\n\nThanks,\nRandy Brandenburg\n"},{"id":"169251","messageId":"loom.20110603T142958-87@post.gmane.org","threadId":"27523","inReplyTo":"20110602192927.GA21262@sigill.intra.peff.net","subject":"Re: Unable to fork off sideband demultiplexer","fromName":"Randy Brandenburg","fromEmail":"randy.brandenburg@woh.rr.com","sentAt":"2011-06-03T12:32:06Z","receivedAt":"2011-06-03T12:32:06Z","isPatch":false,"sender":{"key":"randy.brandenburg@woh.rr.com","avatar":null},"body":"Jeff King peff.net> writes:\n\n> \n> If you build without NO_PTHREADS set on a Solaris 9 box, does it work on\n> that same box? That would confirm or deny my ABI compatibility theory\n> (and hopefully point us in the right direction for the sunfreeware\n> people to build a binary that works on Solaris 9 and 10).\n> \n> -Peff\n> \n\nI will attempt building without NO_PTHREADS set today along with the other \nsuggestions about modifying the config.mak instead of the actual Makefile. Stay \ntuned.\n\n- Randy\n"},{"id":"169252","messageId":"loom.20110603T151012-143@post.gmane.org","threadId":"27523","inReplyTo":"20110602192927.GA21262@sigill.intra.peff.net","subject":"Re: Unable to fork off sideband demultiplexer","fromName":"Randy Brandenburg","fromEmail":"randy.brandenburg@woh.rr.com","sentAt":"2011-06-03T13:30:00Z","receivedAt":"2011-06-03T13:30:00Z","isPatch":false,"sender":{"key":"randy.brandenburg@woh.rr.com","avatar":null},"body":"Jeff King peff.net> writes:\n\n> Great, I'm glad it's working. With NO_PTHREADS set, you will be\n> fork()ing off the sideband process instead of using a thread. So you\n> avoid pthreads altogether and it works, but you can't do multi-threaded\n> delta compression.\n> \n> If you build without NO_PTHREADS set on a Solaris 9 box, does it work on\n> that same box? That would confirm or deny my ABI compatibility theory\n> (and hopefully point us in the right direction for the sunfreeware\n> people to build a binary that works on Solaris 9 and 10).\n> \n\nBuilding without NO_PTHREADS set results in the original \"broken\" behaviour. I \nam staying with the working version in the interest of time. May investigate \nmore later. \n\nThanks for all the insight and tips.\n\n- Randy\n"},{"id":"169253","messageId":"20110603144907.GA11273@sigill.intra.peff.net","threadId":"27523","inReplyTo":"loom.20110603T151012-143@post.gmane.org","subject":"Re: Unable to fork off sideband demultiplexer","fromName":"Jeff King","fromEmail":"peff@peff.net","sentAt":"2011-06-03T14:49:07Z","receivedAt":"2011-06-03T14:49:07Z","isPatch":false,"sender":{"key":"peff@peff.net","avatar":"https://avatars.githubusercontent.com/u/45925?v=4"},"body":"On Fri, Jun 03, 2011 at 01:30:00PM +0000, Randy Brandenburg wrote:\n\n> > If you build without NO_PTHREADS set on a Solaris 9 box, does it\n> > work on that same box? That would confirm or deny my ABI\n> > compatibility theory (and hopefully point us in the right direction\n> > for the sunfreeware people to build a binary that works on Solaris 9\n> > and 10).\n> > \n> \n> Building without NO_PTHREADS set results in the original \"broken\"\n> behaviour. I am staying with the working version in the interest of\n> time. May investigate more later.\n\nThanks, that's a good data point. I know you are probably out of time\nfor fooling with such things, but if you get a chance, could you try\nbuilding also with \"-pthreads\" in PTHREAD_CFLAGS? I'm wondering if the\nproblem is as simple as that.\n\n-Peff\n"},{"id":"169265","messageId":"loom.20110603T204919-581@post.gmane.org","threadId":"27523","inReplyTo":"20110603144907.GA11273@sigill.intra.peff.net","subject":"Re: Unable to fork off sideband demultiplexer","fromName":"Randy Brandenburg","fromEmail":"randy.brandenburg@woh.rr.com","sentAt":"2011-06-03T18:52:32Z","receivedAt":"2011-06-03T18:52:32Z","isPatch":false,"sender":{"key":"randy.brandenburg@woh.rr.com","avatar":null},"body":"Jeff King peff.net> writes:\n\n> \n> Thanks, that's a good data point. I know you are probably out of time\n> for fooling with such things, but if you get a chance, could you try\n> building also with \"-pthreads\" in PTHREAD_CFLAGS? I'm wondering if the\n> problem is as simple as that.\n> \n> -Peff\n> \n\nOK, rebuilt with NO_PTHREADS=0 and PTHREAD_CFLAGS=-pthreads and it seems to be \nworking. Just tested quickly for the basics (push and pull). I will be able to \ntest more in depth next week, but I would assume that all will be okay.\n\nHope this helps.\n\n-Randy\n"},{"id":"169266","messageId":"20110603192445.GA26977@sigill.intra.peff.net","threadId":"27523","inReplyTo":"loom.20110603T204919-581@post.gmane.org","subject":"Re: Unable to fork off sideband demultiplexer","fromName":"Jeff King","fromEmail":"peff@peff.net","sentAt":"2011-06-03T19:24:45Z","receivedAt":"2011-06-03T19:24:45Z","isPatch":false,"sender":{"key":"peff@peff.net","avatar":"https://avatars.githubusercontent.com/u/45925?v=4"},"body":"On Fri, Jun 03, 2011 at 06:52:32PM +0000, Randy Brandenburg wrote:\n\n> OK, rebuilt with NO_PTHREADS=0 and PTHREAD_CFLAGS=-pthreads and it seems to be \n> working. Just tested quickly for the basics (push and pull). I will be able to \n> test more in depth next week, but I would assume that all will be\n> okay.\n\nI think that will still build without pthreads at all, as we check\n\"ifdef NO_PTHREADS\" in the Makefile. You have to use \"NO_PTHREADS=\".\n\n-Peff\n"},{"id":"169275","messageId":"hHoAK3_nb0Xfx67o9GUPrCAUvVBvhjmiF5J8x5abCUQeaCChUD3Q3Q@cipher.nrlssc.navy.mil","threadId":"27523","inReplyTo":"20110603144907.GA11273@sigill.intra.peff.net","subject":"Re: Unable to fork off sideband demultiplexer","fromName":"Brandon Casey","fromEmail":"brandon.casey.ctr@nrlssc.navy.mil","sentAt":"2011-06-03T22:18:19Z","receivedAt":"2011-06-03T22:18:19Z","isPatch":false,"sender":{"key":"brandon.casey.ctr@nrlssc.navy.mil","avatar":null},"body":"On 06/03/2011 09:49 AM, Jeff King wrote:\n> On Fri, Jun 03, 2011 at 01:30:00PM +0000, Randy Brandenburg wrote:\n> \n>>> If you build without NO_PTHREADS set on a Solaris 9 box, does it\n>>> work on that same box? That would confirm or deny my ABI\n>>> compatibility theory (and hopefully point us in the right direction\n>>> for the sunfreeware people to build a binary that works on Solaris 9\n>>> and 10).\n>>>\n>>\n>> Building without NO_PTHREADS set results in the original \"broken\"\n>> behaviour. I am staying with the working version in the interest of\n>> time. May investigate more later.\n> \n> Thanks, that's a good data point. I know you are probably out of time\n> for fooling with such things, but if you get a chance, could you try\n> building also with \"-pthreads\" in PTHREAD_CFLAGS? I'm wondering if the\n> problem is as simple as that.\n\nI generally build on 5.7 using Sun WSPro compilers and then test that\nbinary on 5.7 and 5.9. The latest that I have compiled is 1.7.5.3 and\nI haven't seen this thread error.\n\nAlso note, I only do the above for testing purposes (and fun :). Solaris\nis not a primary development platform, so it does not get a lot of\nactive testing in practice. The 5.9 system doesn't even have a compiler\ninstalled, so I can't try to duplicate this problem.\n\n-Brandon\n"},{"id":"169306","messageId":"1307215847-sup-5834@pinkfloyd.chass.utoronto.ca","threadId":"27523","inReplyTo":"loom.20110603T142235-877@post.gmane.org","subject":"Re: Unable to fork off sideband demultiplexer","fromName":"Ben Walton","fromEmail":"bwalton@artsci.utoronto.ca","sentAt":"2011-06-04T19:32:39Z","receivedAt":"2011-06-04T19:32:39Z","isPatch":false,"sender":{"key":"bdwalton@gmail.com","avatar":"https://avatars.githubusercontent.com/u/396061?v=4"},"body":"Excerpts from Randy Brandenburg's message of Fri Jun 03 08:29:21 -0400 2011:\n\nHi Randy,\n\n> I did download the 1.7.3.2 version using pkg-get as the next option\n\nTry pkgutil. It's much more capable. :)\n\n> Please keep me posted when the package is available for download!\n\nI'll push these for release shortly, but in the meantime, you can get\n1.7.5.4 packages here:\n\nhttp://buildfarm.opencsw.org/experimental.html#git\n\nThanks\n-Ben\n--\nBen Walton\nSystems Programmer - CHASS\nUniversity of Toronto\nC:416.407.5610 | W:416.978.4302\n"}]}