https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81443
Bug ID: 81443
Summary: gcc-7.1.0/MIPS N32: build/genrecog.o: virtual memory
exhausted: Cannot allocate memory
Product: gcc
Version: 7.1.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: middle-end
Assignee: unassigned at gcc dot gnu.org
Reporter: kumba at gentoo dot org
Target Milestone: ---
I am attempting to compile gcc-7.1.0 on a 64-bit MIPS platform, targeting the
MIPS-III ISA, glibc-userland, N32 ABI, big-endian architecture, and an unable
to complete the compile due to exhausting all available virtual memory. The
machine in question has 2GB of physical RAM installed and ~7GB of swap space
(3GB in partitions, 4GB as a temp swap file). I at first thought it was the
parallelization (-j3 to make), since the machine is dual CPU, but it also fails
as -j2 and -j1. I watched the swap usage with 'watch -n2 swapon --show', and
when the compile terminates, swap is barely at 50%, so I don't think it's
related to lack of available swap space.
I was able to successfully compile gcc-7.1 on the same machine, different
chroot, under the O32 ABI for glibc-2.24, and O32 ABI for uclibc-ng-1.0.25 in
another chroot. So I suspect this is a regression for the N32 ABI case.
I am not sure what files or data will of use to run this one down. I am
preserving the last builddir for now, so if specific files are needed for
analysis, let me know.
# /var/tmp/portage/sys-devel/gcc-7.1.0-r1/work/build/./prev-gcc/xg++ -v
Using built-in specs.
COLLECT_GCC=/var/tmp/portage/sys-devel/gcc-7.1.0-r1/work/build/./prev-gcc/xg++
Target: mips64-unknown-linux-gnu
Configured with:
/var/tmp/portage/sys-devel/gcc-7.1.0-r1/work/gcc-7.1.0/configure
--host=mips64-unknown-linux-gnu --build=mips64-unknown-linux-gnu --prefix=/usr
--bindir=/usr/mips64-unknown-linux-gnu/gcc-bin/7.1.0
--includedir=/usr/lib/gcc/mips64-unknown-linux-gnu/7.1.0/include
--datadir=/usr/share/gcc-data/mips64-unknown-linux-gnu/7.1.0
--mandir=/usr/share/gcc-data/mips64-unknown-linux-gnu/7.1.0/man
--infodir=/usr/share/gcc-data/mips64-unknown-linux-gnu/7.1.0/info
--with-gxx-include-dir=/usr/lib/gcc/mips64-unknown-linux-gnu/7.1.0/include/g++-v7
--with-python-dir=/share/gcc-data/mips64-unknown-linux-gnu/7.1.0/python
--enable-languages=c,c++ --enable-obsolete --enable-secureplt --disable-werror
--with-system-zlib --enable-nls --without-included-gettext
--enable-checking=release --with-bugurl=https://bugs.gentoo.org/
--with-pkgversion='Gentoo 7.1.0-r1 p1.1' --disable-esp --enable-libstdcxx-time
--enable-shared --enable-threads=posix --enable-__cxa_atexit
--enable-clocale=gnu --disable-multilib --disable-altivec --disable-fixed-point
--with-abi=n32 --disable-libgcj --disable-libgomp --disable-libmudflap
--disable-libssp --disable-libcilkrts --disable-libmpx --disable-vtable-verify
--disable-libvtv --disable-libquadmath --enable-lto --without-isl
--disable-libsanitizer --disable-default-pie --enable-default-ssp
Thread model: posix
gcc version 7.1.0 (Gentoo 7.1.0-r1 p1.1)
