[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: Re: Page Fault Handler Hijacking and Oops

Hello everyone....

> However an OOPS can much more probably be caused by actually
> accessing an invalid pointer. It can have the same causes as SIGSEGV
> does in userland.

I also suspect that Vincenzo was doing pointer dereference toward NULL 
pointer, reading the fact that he is doing "list scanning".  I am not 
sure, whether inside this list scanning stage, he is doing memory 
allocation or not. If he did, he surely needs kmalloc() with 
GFP_ATOMIC, again...the pointer returned by this might be NULL too.


regards

Mulyadi


--
Kernelnewbies: Help each other learn about the Linux kernel.
Archive:       http://mail.nl.linux.org/kernelnewbies/
FAQ:           http://kernelnewbies.org/faq/