Control: reassign -1 src:ns3 3.30+dfsg-3.1 On Ma, 11 feb 20, 11:46:29, Martin Quinson wrote: > Source: src:ns3 > Version: 3.30+dfsg-3.1 > Severity: serious > Tag: ftbfs > Tag: help > > Hello, > > I'm the maintainer of this package. I'm opening this bug to discuss the issue > with whom may be interested, and keep track of the discussion. > > The package is currently trying to enter testing to fix 2 (easy) RC bugs, but > fails to do so because builds fail on mipsel with the following message: > > ------------------------------ > as: out of memory allocating 17107680 bytes after a total of 567459840 bytes > /tmp/cc23jwIU.s: Assembler messages: > /tmp/cc23jwIU.s: Fatal error: can't close /<<PKGBUILDDIR>>/ns-3.30/build- > shared/src/lte/bindings/ns3module.cc.7.o: memory exhausted > ------------------------------ > > I tried to reduce the memory consumption with the following chunks in > debian/rules: > > ------------------------------ > ifeq ($(DEB_HOST_GNU_CPU),mipsel) > # Drop the debug symbols all together on mipsel to avoid OOM causing FTBFS > export DEB_CFLAGS_MAINT_STRIP=-g > export DEB_CXXFLAGS_MAINT_STRIP=-g > endif > LDFLAGS+=-Wl,--as-needed > > # Define CFLAGS and friends to harden the build -- must come any addition to > these variables > DPKG_EXPORT_BUILDFLAGS = 1 > include /usr/share/dpkg/buildflags.mk > > ifeq ($(DEB_HOST_GNU_CPU),mipsel) > # Further reduce the memory consumption on mipsel > LDFLAGS += -Wl,--reduce-memory-overheads -Wl,--no-keep-memory > endif > ------------------------------- > > The version that failed on the buildd servers does not have these changes, but > I tested it on the porterbox. I manually inspected the command-line parameters > passed to the parser, and it seem to be all right. Compiling without -g and > linking with the reduce-memory-overheads (unless I'm wrong). But this is not > sufficient: I get exactly the same error message. > > In addition, I don't think that this is a real bug of as. ns-3 is a very large > library, and upstream is not paying a lot of effort on reducing its size or > optimizing the linking phase. I don't have any idea of how to fix it myself. > > > I guess that I should ask for the removal of the mipsel version of this > package, but I'm not entirely sure. I'd love to have ns-3 building on > every platform, even if I'm certain that nobody will ever try to use > it on this platform. This is a rather inefficient simulator used in > science. Users will more probably deploy it to a fast compute server. > But still, if possible, being compilable on mipsel too would be > healthy for the software, if I could. > > Any help or advice is really really welcomed. Everything is in the salsa > repository. > > Thanks, > Mt > > -- > Vae Soli.
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