Core dumped, but core file is not in the current directory?

Question

While running a C program, It says *"(core dumped)"* but I can't see any files under the current path.I have set and verified the `ulimit`: ulimit -c unlimited ulimit -a I also tried to find a file named "core", but didn't get the core dumped file? Any help, where is my core file?

Answer 1

Two most likely causes - the "current directory is not where you think it is, or the system couldn't create the file:

1) The core files was generated, but the "current directory" of the executing process is no longer where the program was launched. That is, might your program be executing a chdir() system call?

You can perform an exhaustive search (might take a while) using find ... something like this:

find / -type f -name "core*" 2> /dev/null

I know you said you leaned on "find", but did you run it this way?

2) So I know you mentioned checking "ulimit" - that's a good place to start, but could your file systems be so close to max capacity, that a large core file just couldn't be created?? Unlikely, but just to eliminate that possibility, execute:

df -h

Are any of the file systems close to 100% capacity?

I'm afraid that's all I have ... start there.