Bus Error (core dumped)

doon

Does anyone know what causes this run time error: Bus Error ? I ran the program through a debugger and found that it bombed out on a function call (not while executing the function). The os is solaris. My thoughts are that the crash was due stack overflow or memory leaks.
Any help would be great!

doon.

deRanged

that's usually a pointer error.
can you use the debugger to check the values of your variables?
that should tell you if any of them are null.

doon

cheers.

UNIFLU

deRanged,
yOU tHINK tHAT iTS tRYING tO pASS nULL vALUES ?

UNIFLU

deRanged,
yOU tHINK tHAT iTS tRYING tO pASS nULL vALUES ?

deRanged

yeah I do.
or referencing outside array bounds or somesuch.

Cerberus

Does a pointer error not usually give the error segmentation fault: Core dumped
Or is this the same as a bus error?

ecksor

A segmentation fault is detected by the operating system, while a bus error is detected by your hardware, altho both are caused by bad pointers.

A segmentation fault is when your program tries to access memory that is on a segment of memory that is not it's own, and this is caught and kicked out by the operating system. However, under some circumstances, a bad pointer can point to somewhere that is valid as far as the OS is concerned, but will make garbage out of your stack or your executable, causing garbage to try and be executed, which is usually caught by the hardware in your machine. Then you get a bus error.

Cerberus

X_OR
I hope you're not in my class cos if you are then none of the rest of us are going to be able to get jobs.

[This message has been edited by Cerberus (edited 01-09-2000).]

ecksor

I dropped out