hello,

i'm looking at a core from a process running in Unix. Usually I can work my around and root into the backtrace to try identify a memory issue. In this case, I'm not sure how to proceed.

Firstly the backtrace only gives 3 frames where I would expect alot more. For those frames, all the function parameters presented appears to completely invalid. There are not what I would expect.

Some pointer parameters have the following associated with them - Cannot access memory at address

Would this suggest some kind of complete stack corruption. I ran the process with libumem and all the buffers were reported as being clean.

umem_status reported nothing either.

so basically I'm stumped. What is the likely causes? What should I look for in code since libumem appears to have reported no errors.

Any suggestions on how I can debug furhter? any extra features in mdb I should consider?

thank you.