Public bug reported:
cc1 allocates memory until it hits ENOMEM. The system has 8GiB of RAM
and 6GiB of swap, and the source file is not very large or complex; the
problem is not visible at -O2.
cc -I. -I./ -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
-D_XOPEN_SOURCE=600 -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
-std=c99 -Wall -O3 -c -o tests/tiny_psnr.o tests/tiny_psnr.c -save-temps
$ gcc -v
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/lib/gcc/s390x-linux-gnu/5/lto-wrapper
Target: s390x-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Ubuntu 5.3.1-3ubuntu1'
--with-bugurl=file:///usr/share/doc/gcc-5/README.Bugs
--enable-languages=c,ada,c++,java,go,d,fortran,objc,obj-c++ --prefix=/usr
--program-suffix=-5 --enable-shared --enable-linker-build-id
--libexecdir=/usr/lib --without-included-gettext --enable-threads=posix
--libdir=/usr/lib --enable-nls --with-sysroot=/ --enable-clocale=gnu
--enable-libstdcxx-debug --enable-libstdcxx-time=yes
--with-default-libstdcxx-abi=new --enable-gnu-unique-object --disable-libitm
--disable-libsanitizer --disable-libquadmath --enable-plugin
--enable-default-pie --with-system-zlib --disable-browser-plugin
--enable-java-awt=gtk --enable-gtk-cairo
--with-java-home=/usr/lib/jvm/java-1.5.0-gcj-5-s390x/jre --enable-java-home
--with-jvm-root-dir=/usr/lib/jvm/java-1.5.0-gcj-5-s390x
--with-jvm-jar-dir=/usr/lib/jvm-exports/java-1.5.0-gcj-5-s390x
--with-arch-directory=s390x --with-ecj-jar=/usr/share/java/eclipse-ecj.jar
--enable-objc-gc --ena
ble-multiarch --disable-werror --with-arch=zEC12 --with-long-double-128
--enable-multilib --enable-checking=release --build=s390x-linux-gnu
--host=s390x-linux-gnu --target=s390x-linux-gnu
Thread model: posix
gcc version 5.3.1 20151207 (Ubuntu 5.3.1-3ubuntu1)
** Affects: gcc-5 (Ubuntu)
Importance: Undecided
Status: New
** Tags: s390x
** Attachment added: "tiny_psnr.i"
https://bugs.launchpad.net/bugs/1526324/+attachment/4535087/+files/tiny_psnr.i
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https://bugs.launchpad.net/bugs/1526324
Title:
building ffmpeg testsuite on s390x with -O3 causes memory exhaustion
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