https://community.intel.com/t5/Software-Tuning-Performance/mlc-3-10-heap-corruption/m-p/1456184#M8144 <P>Running mlc 3.10 on Linux aborts due to heap corruption:</P> <LI-CODE lang="markup">$ ./mlc Intel(R) Memory Latency Checker - v3.10 malloc(): corrupted top size [1] 132463 IOT instruction (core dumped) ./mlc </LI-CODE> <P>Valgrind complains of an OOB write:</P> <LI-CODE lang="markup">$ valgrind ./mlc --latency_matrix ==132729== Memcheck, a memory error detector ==132729== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al. ==132729== Using Valgrind-3.19.0 and LibVEX; rerun with -h for copyright info ==132729== Command: ./mlc --latency_matrix ==132729== Intel(R) Memory Latency Checker - v3.10 ==132729== Invalid write of size 4 ==132729== at 0x41575C: ??? (in /home/tavianator/code/intel/mlc_v3.10/Linux/mlc) ==132729== by 0x401EE3: ??? (in /home/tavianator/code/intel/mlc_v3.10/Linux/mlc) ==132729== by 0x48CB78F: (below main) (libc_start_call_main.h:58) ==132729== Address 0x4ad32cc is 12 bytes after a block of size 1,152 alloc'd ==132729== at 0x4841888: malloc (vg_replace_malloc.c:381) ==132729== by 0x4156E5: ??? (in /home/tavianator/code/intel/mlc_v3.10/Linux/mlc) ==132729== by 0x401EE3: ??? (in /home/tavianator/code/intel/mlc_v3.10/Linux/mlc) ==132729== by 0x48CB78F: (below main) (libc_start_call_main.h:58)</LI-CODE> <P>&nbsp;</P> Wed, 15 Feb 2023 15:50:14 GMT tavianator 2023-02-15T15:50:14Z https://community.intel.com/t5/Software-Tuning-Performance/mlc-3-10-heap-corruption/m-p/1456184#M8144 <P>Running mlc 3.10 on Linux aborts due to heap corruption:</P> <LI-CODE lang="markup">$ ./mlc Intel(R) Memory Latency Checker - v3.10 malloc(): corrupted top size [1] 132463 IOT instruction (core dumped) ./mlc </LI-CODE> <P>Valgrind complains of an OOB write:</P> <LI-CODE lang="markup">$ valgrind ./mlc --latency_matrix ==132729== Memcheck, a memory error detector ==132729== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al. ==132729== Using Valgrind-3.19.0 and LibVEX; rerun with -h for copyright info ==132729== Command: ./mlc --latency_matrix ==132729== Intel(R) Memory Latency Checker - v3.10 ==132729== Invalid write of size 4 ==132729== at 0x41575C: ??? (in /home/tavianator/code/intel/mlc_v3.10/Linux/mlc) ==132729== by 0x401EE3: ??? (in /home/tavianator/code/intel/mlc_v3.10/Linux/mlc) ==132729== by 0x48CB78F: (below main) (libc_start_call_main.h:58) ==132729== Address 0x4ad32cc is 12 bytes after a block of size 1,152 alloc'd ==132729== at 0x4841888: malloc (vg_replace_malloc.c:381) ==132729== by 0x4156E5: ??? (in /home/tavianator/code/intel/mlc_v3.10/Linux/mlc) ==132729== by 0x401EE3: ??? (in /home/tavianator/code/intel/mlc_v3.10/Linux/mlc) ==132729== by 0x48CB78F: (below main) (libc_start_call_main.h:58)</LI-CODE> <P>&nbsp;</P> Wed, 15 Feb 2023 15:50:14 GMT https://community.intel.com/t5/Software-Tuning-Performance/mlc-3-10-heap-corruption/m-p/1456184#M8144 tavianator 2023-02-15T15:50:14Z