我正在运行一个C / C ++程序，它试图打开保存在磁盘上的文件。如果我运行程序没有cachegrind它运行完美。但是如果我用cachegrind运行程序，我会收到以下错误。有人可以帮我纠正错误：
==25989== Cachegrind, a cache and branch-prediction profiler
==25989== Copyright (C) 2002-2011, and GNU GPL'd, by Nicholas Nethercote et al.
==25989== Using Valgrind-3.7.0 and LibVEX; rerun with -h for copyright info
==25989== Command: ./executionFile --main-stacksize=1000000000000
==25989==
--25989-- warning: L3 cache found, using its data for the LL simulation.
--25989-- warning: pretending that LL cache has associativity 30 instead of actual 20
==25989==
==25989== Process terminating with default action of signal 11 (SIGSEGV)
==25989== Access not within mapped region at address 0xFFFFFFFFFFFFFFFF
==25989== at 0x409D01: MyFile::open(char const*, bool) (MyFile.cpp:117)
==25989== by 0x4042C5: main (executionFile.cpp:193)
==25989== If you believe this happened as a result of a stack
==25989== overflow in your program's main thread (unlikely but
==25989== possible), you can try to increase the size of the
==25989== main thread stack using the --main-stacksize= flag.
==25989== The main thread stack size used in this run was 8388608.
==25989==
==25989== I refs: 1,642,435
==25989== I1 misses: 1,695
==25989== LLi misses: 1,655
==25989== I1 miss rate: 0.10%
==25989== LLi miss rate: 0.10%
==25989==
==25989== D refs: 542,393 (404,546 rd + 137,847 wr)
==25989== D1 misses: 13,170 ( 11,239 rd + 1,931 wr)
==25989== LLd misses: 7,961 ( 6,510 rd + 1,451 wr)
==25989== D1 miss rate: 2.4% ( 2.7% + 1.4% )
==25989== LLd miss rate: 1.4% ( 1.6% + 1.0% )
==25989==
==25989== LL refs: 14,865 ( 12,934 rd + 1,931 wr)
==25989== LL misses: 9,616 ( 8,165 rd + 1,451 wr)
==25989== LL miss rate: 0.4% ( 0.3% + 1.0% )
我需要进行性能分析才能找出缓存未命中数。 有人可以帮我纠正错误
编辑： 我正在尝试使用以下方式打开我的文件：
int file=::open(name_of_my_File,readOnly?O_RDONLY:O_RDWR);