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That's good enough to be able to debug.
Thanks a lot for your help!

Oh wow, thanks!
Don't know how I could have missed that!

Do you have any idea how to catch the signal using gdb?
The handler gets installed successfully (checked with my updated if-statement...

In the meantime I figured out, that the signal handler does not catch the signal if I run the program in gdb, but does catch it if I run it normally.

However


if(0 > sigaction(SIGSEGV,...

Thank you very much for your replies!
I solved it by requiring a write lock to be held in order to write, and assume that the access is a read if the lock is not held.

However another problem...

I encountered another problem.
Is it possible to determine whether the fault occured because of an attempt to read or to write?
I'd assume, that this can be done using siginfo_t, but can't figure...

Makes sense, thank you very much!

Hey all,

I try to write a shared memory for a distributed computing system.

In order to implement a kind of paging for this I want to invalidate the addresses of memory-pages that are currently...