From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Hoeflinger, Jay P" Date: Fri, 07 Dec 2001 16:23:32 +0000 Subject: RE: [Linux-ia64] mprotect problem Message-Id: List-Id: References: In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-ia64@vger.kernel.org I don't know how to do this. I'm not a kernel hacker and I've never rebuilt the kernel. Is there any way I can view this with a debugger or anything else? Jay -----Original Message----- From: David Mosberger [mailto:davidm@hpl.hp.com] Sent: Friday, December 07, 2001 10:10 AM To: Hoeflinger, Jay P Cc: 'Boehm, Hans'; 'n0ano@indstorage.com'; MOSBERGER, DAVID (HP-PaloAlto,unix3); 'linux-ia64@linuxia64.org' Subject: RE: [Linux-ia64] mprotect problem >>>>> On Fri, 7 Dec 2001 06:53:14 -0800 , "Hoeflinger, Jay P" said: Jay> No, we haven't checked that this is not a page size or Jay> alignment issue. The page size we get from getpagesize(). Can you find out *why* the later page faults occur? Printing the ISR should help. The page fault handler does not (yet) setup si_isr in the siginfo, but you could just hack arch/ia64/mm/fault.c:ia64_do_page_fault() to print the ISR when you detect the problematic case. If you have a (small) test program that replicates the problem, I'd be happy to look into it early next week. --david