On Tue, Nov 4, 2014 at 8:35 AM, Ausmus, James <james.aus...@intel.com> wrote: > On Mon, Nov 3, 2014 at 8:12 PM, Matt Turner <matts...@gmail.com> wrote: >> On Mon, Nov 3, 2014 at 7:35 PM, Ausmus, James <james.aus...@intel.com> >> wrote: >> > I am able to reproduce this consistently with -j40 - it bisects to: >> >> Thanks. Maybe you could give a little more information, like an error >> message or something? > > Same error as Thierry reported in this thread in August:
Unfortunately Thierry's was from a re-run of make, so it wasn't useful. > make[4]: Entering directory > `/build/x86-alex/tmp/portage/media-libs/mesa-9999/work/Mesa-9999/src/mapi' > CC glapi_libglapi_la-glapi_gentable.lo > CC glapi_libglapi_la-glapi_dispatch.lo > CC glapi_libglapi_la-glapi_entrypoint.lo > CC glapi_libglapi_la-glapi_getproc.lo > CC glapi_libglapi_la-glapi_nop.lo > CC glapi_libglapi_la-glapi.lo > CC glapi_libglapi_la-u_current.lo > CC glapi_libglapi_la-u_execmem.lo > GEN .libs/install-mesa-links > touch: cannot touch '.libs/install-mesa-links': No such file or directory > make[4]: *** [.libs/install-mesa-links] Error 1 Thanks, this is perfect. I think I see what's going on now. I think the problem is related to the fact that these .la files are put into subdirectories' .libs directories, rather than into src/mapi/.libs, which we try to create a file in. The .o files are put into src/mapi/.libs, so I suspect that it's a race between writing the first one of those, and touching .libs/install-mesa-links. In install-lib-links.mk we specify the dependency of "all-local : .libs/install-mesa-links" to prevent us from recreating the links, and while "all-local" must run after "all", I guess there's nothing preventing its dependencies from running before "all" has completed. But we do specify the dependency ".libs/install-mesa-links : $(lib_LTLIBRARIES)", and since those require the .lo files which must have created .libs -- it's not clear why it's not working out. It seems like this dependency isn't working. On my system, lib_LTLIBRARIES are always built before .libs/install-mesa-links, so it appears to work locally. I've gone over this all and can't spot the problem. The dependencies look fine. I tried automake-1.13 and 1.14, and make-3.82 and 4.0. Maybe I'll have more luck on a 40 core system. It's probably simple enough to put the 'install-mesa-links' file in the current directory, rather than in .libs since we're relying on libtool to create that. But I would like to understand what the heck is going on. _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/mesa-dev
