Bug 95329

Created attachment 123583 [details]
user.cfg

The game itself (excluding the benchmark) runs OK with Mesa.

The cause of the issue is in metro.bin, not in Mesa. Found via running "valgrind benchmark.sh".

The following code fixes the issue:

$ cat posix_memalign.c
#include <errno.h>
#include <malloc.h>
#include <stdlib.h>
#include <strings.h>

int posix_memalign(void **memptr, size_t alignment, size_t size) {
        if(alignment < 32) {
                alignment = 32;  // Optional. Might boost memcpy().
        }
        size *= 2;       // Required
        void *p = memalign(alignment, size);
        if(!p && size) {
                return ENOMEM;
        }
        bzero(p, size);  // Optional
        *memptr = p;
        return 0;
}

$ gcc -m32 -shared -fPIC -O2 -g -Wall -Werror -std=c99 -o posix_memalign32.so posix_memalign.c
$ gcc -m64 -shared -fPIC -O2 -g -Wall -Werror -std=c99 -o posix_memalign64.so posix_memalign.c
$ export LD_PRELOAD="$PWD/posix_memalign32.so:$PWD/posix_memalign64.so:$LD_PRELOAD"
$ .../Metro 2033 Redux/benchmark.sh

Still reproducible in July 2018.

Another workaround is possible with newer glibc:

GLIBC_TUNABLES=glibc.malloc.check=3 ./benchmark.sh