This is the mail archive of the
systemtap@sourceware.org
mailing list for the systemtap project.
Re: double fault -> PAGE_KERNEL flagged memory
- From: Tom Zanussi <zanussi at us dot ibm dot com>
- To: Roland McGrath <roland at redhat dot com>
- Cc: Mathieu Desnoyers <compudj at krystal dot dyndns dot org>, systemtap at sources dot redhat dot com
- Date: Wed, 23 Nov 2005 17:19:54 -0600
- Subject: Re: double fault -> PAGE_KERNEL flagged memory
- References: <20051123215633.GA8063@Krystal> <20051123223409.9E2DB1809B9@magilla.sf.frob.com>
Roland McGrath writes:
>
> In the current Linus kernel, the i386 do_page_fault routine is marked with
> __kprobes. As I understand it, this puts it in a special section and no
> kprobe can be inserted inside the function. If that's the case, I'm a bit
> confused as to how this is coming up.
This part of the thread has been a sidebar, AFAICS - the original
poster didn't mention anything about instrumenting the page fault
path.
Tom