https://bugs.freedesktop.org/show_bug.cgi?id=95329

Jan Ziak 0xe2.0x9a.0x9b@gmail.com changed:

What |Removed |Added ---------------------------------------------------------------------------- CC| |0xe2.0x9a.0x9b@gmail.com

--- Comment #1 from Jan Ziak 0xe2.0x9a.0x9b@gmail.com --- Created attachment 123583 --> https://bugs.freedesktop.org/attachment.cgi?id=123583&action=edit user.cfg

https://bugs.freedesktop.org/show_bug.cgi?id=95329

Jan Ziak 0xe2.0x9a.0x9b@gmail.com changed:

What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution|--- |NOTOURBUG

--- Comment #3 from Jan Ziak 0xe2.0x9a.0x9b@gmail.com --- 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

https://bugs.freedesktop.org/show_bug.cgi?id=95329

--- Comment #5 from Alexander Tsoy alexander@tsoy.me --- Another workaround is possible with newer glibc:

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