How do you read a segfault kernel log message.
- by Sullenx
This can be a very simple question, I'm am attempting to debug an application which generates the following segfault error in the kern.log
/var/log/kern.log.0:Jan 8 13:25:56 myhost kernel: myapp[15514]: segfault at 794ef0 ip 080513b sp 794ef0 error 6 in myapp[8048000+24000]
Here are my questions:
1) Is there any documentation as to what are the diff error numbers on segfault, in this instance it is error 6, but i've seen error 4, 5
2) What is the meaning of the information at bf794ef0 ip 0805130b sp bf794ef0 and myapp[8048000+24000]?
So far i was able to compile with symbols, and when i do a "x 0x8048000+24000" it returns a symbol, is that the correct way of doing it? My assumptions thus far are the following:
sp = stack pointer?
ip = instruction pointer
at = ????
myapp[8048000+24000] = address of symbol?
