On Sat, 15 Oct 2016, Adrian Bunk wrote:
> > > The build log says
> > >   make -j4

> > > This is due to the following in debian/rules:
> > >   dh $@ --parallel --sourcedirectory=src

> > > Running 4 instances of the compiler in parallel can quadruple
> > > the memory usage. 

> > That is true, however the amount of memory per 32-bit process is
> > unchanged and still limited to 2GB, so I doubt it will make any
> > change.

> The error message just tells that mmap() failed with ENOMEM,
> but looking at the hardware specs of the autobuilders I agree
> with you that my suggestion is not likely to help here.

and your suspicion is right on the money -- it didn't help, the same
problem:
https://buildd.debian.org/status/fetch.php?pkg=connectome-workbench&arch=mips&ver=1.2.3-3&stamp=1476565096
and there is 'make -j1' there but
cd /«PKGBUILDDIR»/obj-mips-linux-gnu/Desktop && /usr/bin/c++   -DCARET_OS_LINUX 
-DHAVE_FREETYPE -DQT_CORE_LIB -DQT_GUI_LIB -DQT_NETWORK_LIB -DQT_NO_DEBUG 
-DQT_OPENGL_LIB -DQT_XML_LIB -isystem /usr/include/qt4 -isystem 
/usr/include/qt4/QtGui -isystem /usr/include/qt4/QtCore -isystem 
/usr/include/qt4/QtOpenGL -isystem /usr/include/qt4/QtXml -isystem 
/usr/include/qt4/QtNetwork -I/«PKGBUILDDIR»/src/Desktop 
-I/«PKGBUILDDIR»/src/Algorithms -I/«PKGBUILDDIR»/src/Commands 
-I/«PKGBUILDDIR»/src/GuiQt -I/«PKGBUILDDIR»/src/Brain 
-I/«PKGBUILDDIR»/src/FilesBase -I/«PKGBUILDDIR»/src/Files 
-I/«PKGBUILDDIR»/src/Palette -I/«PKGBUILDDIR»/src/Cifti 
-I/«PKGBUILDDIR»/src/Gifti -I/«PKGBUILDDIR»/src/Nifti -I/«PKGBUILDDIR»/src/Qwt 
-I/«PKGBUILDDIR»/src/Scenes -I/«PKGBUILDDIR»/src/Xml 
-I/«PKGBUILDDIR»/src/Common  -fopenmp -g -O2 
-fdebug-prefix-map=/«PKGBUILDDIR»=. -fstack-protector-strong -Wformat 
-Werror=format-security -DNDEBUG -Wdate-time -D_FORTIFY_SOURCE=2     -W -Wall 
-Werror=return-type -Werror=switch -Wunused-parameter -Wno-narrowing 
-Wno-unused-local-typedefs -o CMakeFiles/wb_view.dir/qrc_resources.cxx.o -c 
/«PKGBUILDDIR»/obj-mips-linux-gnu/Desktop/qrc_resources.cxx
virtual memory exhausted: Cannot allocate memory

so the same story.

more ideas before I guess I just file for RM for mips and mipsel?
-- 
Yaroslav O. Halchenko
Center for Open Neuroscience     http://centerforopenneuroscience.org
Dartmouth College, 419 Moore Hall, Hinman Box 6207, Hanover, NH 03755
Phone: +1 (603) 646-9834                       Fax: +1 (603) 646-1419
WWW:   http://www.linkedin.com/in/yarik        

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