coredump

问题 I have a process in Linux that's getting a segmentation fault. How can I tell it to generate a core dump when it fails? 回答1: This depends on what shell you are using. If you are using bash, then the ulimit command controls several settings relating to program execution, such as whether you should dump core. If you type ulimit -c unlimited then that will tell bash that its programs can dump cores of any size. You can specify a size such as 52M instead of unlimited if you want, but in practice

问题 when I compile my code with g++ -g -o prueba prueba.cpp -lstdc++ -O3 -march=corei7 -mtune=corei7 -std=c++0x After debugging with g++ -g prueba.cpp , I got these: prueba.cpp:24:6: error: ‘stoi’ is not a member of ‘std’ tm = std::stoi(string2); ^ prueba.cpp:34:7: error: ‘stoi’ is not a member of ‘std’ ler = std::stoi(string1); ^ prueba.cpp:77:8: error: ‘stoi’ is not a member of ‘std’ C[i]=std::stoi(string); ^ The way I declare stoi as std::stoi was based on this example. And the broken block is

问题 I am working on a c++ application. I got some core files from the client which he says are generated now but is not willing to say how are they generated and what he has done from generating them. I doubt he is wrong and may be he gave me the dump which were generated long time ago. Is there any way where I can get the actual creation time of the file? I doubt the files may be created in some other servers and he has transferred them. Anyone pls help. If its not in the core file, may be Unix

问题 I compiled OpenSSL 0.9.8x with these ./config options: ./config --prefix=/usr/local/openssl-0.9.8 --openssldir=/usr/local/openssl-0.9.8 I'm compiling my PHP version with these ./configure options (among others): --with-openssl=/usr/local/openssl-0.9.8 --with-openssl-dir=/usr/local/openssl-0.9.8 The problem is that when I run a PHP script with openssl_public_encrypt I'm getting a segmentation fault. Here's what gdb says: Program terminated with signal 11, Segmentation fault. #0

问题 I am using Ubuntu 12.04 LTS. I wrote a simple program as follows to create crash // null.c #include<stdio.h> int main() { int *p = NULL; int k=*p; printf("%d",sizeof(0)); return 0; } Now I run with "gcc -g null.c" and then "./a.out" and the output is as expected. Segmentation fault (core dumped) Now I want to see the core dump file using gdb. I did the following things I checked the current directory, there is no core dump file I tried tried to change the /proc/sys/kernel/core_pattern with

问题 I am looking for a simple way to pull the stack trace out of a Linux core dump file programmatically, without having to invoke gdb. Anybody has an idea? To avoid confusion: I am not looking for a way to get my own back trace from inside a process. I am looking for a way to get a backtrace out of a completely independent core dump file I have. 回答1: If you really can't invoke gdb, but want a backtrace like the ones it provides, you could just copy the bits of gdb's source that are needed for

问题 I am facing a specific challenge while debugging with GDB. My binary is generating core. When i am debugging it GDB. I am not getting relevant debugging information. GDB stack trace (bt):- [root@ussdgw5 bin]# gdb pull core.11328 GNU gdb (GDB) Red Hat Enterprise Linux (7.0.1-23.el5) Copyright (C) 2009 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO

问题 Hi so I am new to C and just wrote my first program in the language and keep getting the segmentation fault error when I try to run it. I'm sure there are multiple small mistakes I have made throughout the code. I have gone through it and I can't figure out where my mistake is. Here is my code: // $Id: crpn.c,v 1.1 2013-10-22 13:28:04-07 - - $ #include <assert.h> #include <libgen.h> #include <stdio.h> #include <stdlib.h> int exit_status = EXIT_SUCCESS; #define EMPTY (-1) #define SIZE 16

问题 I install mpich using brew install mpich , but if I use MPI_Barrier , I will get segmentation fault. See the simple code below: // A.c #include "mpi.h" #include <stdio.h> int main(int argc, char *argv[]) { int rank, nprocs; MPI_Init(&argc,&argv); MPI_Comm_size(MPI_COMM_WORLD,&nprocs); MPI_Comm_rank(MPI_COMM_WORLD,&rank); MPI_Barrier(MPI_COMM_WORLD); printf("Hello, world. I am %d of %d\n", rank, nprocs);fflush(stdout); MPI_Finalize(); return 0; } mpicc A.c -g -O0 -o A After running mpirun -n 2

问题 This is the Original code: #include <stdio.h> #include <string.h> #include <assert.h> #if defined(_WIN32) && !defined(__CYGWIN__) #include <windows.h> #else #include <sys/select.h> #endif #include <sphinxbase/err.h> #include <sphinxbase/ad.h> #include "pocketsphinx.h" static const arg_t cont_args_def[] = { POCKETSPHINX_OPTIONS, /* Argument file. */ {"-argfile", ARG_STRING, NULL, "Argument file giving extra arguments."}, {"-adcdev", ARG_STRING, NULL, "Name of audio device to use for input."},