kernel page fult for a valid pointer?
Monthadar Al Jaberi
monthadar at gmail.com
Sat Aug 18 18:29:27 UTC 2012
Hi,
I am wondering is there a reason for getting "Fatal trap 12: page
fault while in kernel mode" "supervisor read, page not present" for an
address used to be valid in kernel space?
I dont really understand why I am getting this, I added a hardware
watchpoint on the address, and when I got to the debuger I could read
the memory content and dump for that address. But when I continue from
the debugger I get the panic and now when I try to read the memory
content I get *** error reading from address ce733000 ***.
I am playing around with the kernel, but I dont really understand why
this is happening or how I can track it down.
Things worth noting, I am working on FreeBSD Current @ VirtualBox
with VIMAGE enabled using jails. If there is any useful info I can
collect it.
br,
--
Monthadar Al Jaberi
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