Can anyone tell me something about the error “SIGNAL ABORTED” and what can be the probable reasons for facing it?
SIGABRT errors are caused by your program aborting due to a fatal error. In C++, this is normally due to an assert statement in C++ not returning true, but some STL elements can generate this if they try to store too much memory.
SIGABRT is commonly used by libc and other libraries to abort the progamm in case of critical errors. For example, glibc sends an SIGABRT in case of a detected double-free or other heap corruptions.
Also, most “assert” implementaions make use of SIGABRT in case of a failed assert.
Furthermore, SIGABRT can be send from any other process like any other signal. Of course, the sending process needs to run as same user or root.
It usually happens when there is a problem with memory allocation.
It happened to me when I my program was trying to allocate an array with negative size.
abort() sends the calling process the SIGABRT signal, this is how abort() basically works.
abort() is usually called by library functions which detect an internal error or some seriously broken constraint. For example malloc() will call abort() if its interal structures are damaged by a heap overflow.