On Wed, 9 Jan 2008 11:41:49 +0100 Ingo Molnar <[EMAIL PROTECTED]> wrote:
> i agree. There a few practical complication on x86: the > do_page_fault() function is currently excluded from kprobe probing, > for recursion reasons. handle_mm_fault() can be probed OTOH - but > that does not catch vmalloc()-ed faults. The middle of > do_page_fault() [line 348] should work better [the point after > notify_page_fault()] - but it's usually more fragile to insert probes > to such middle-of-the-function places. I have been reading about kprobes and one thing particularly bothers me in the case of mmio-trace. The probe will actually service the page fault, therefore it should be able force do_page_fault() to return at the probe point. I could not figure out a way to do that. Is it possible to do reliably with kprobes or markers? Thanks for the replies. -- Pekka Paalanen http://www.iki.fi/pq/ -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
