From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from sc8-sf-mx2-b.sourceforge.net ([10.3.1.92] helo=mail.sourceforge.net) by sc8-sf-list1-new.sourceforge.net with esmtp (Exim 4.43) id 1IXnXB-0005GB-NI for user-mode-linux-devel@lists.sourceforge.net; Tue, 18 Sep 2007 17:35:26 -0700 Received: from saraswathi.solana.com ([198.99.130.12]) by mail.sourceforge.net with esmtps (TLSv1:AES256-SHA:256) (Exim 4.44) id 1IXnX9-0003wM-2q for user-mode-linux-devel@lists.sourceforge.net; Tue, 18 Sep 2007 17:35:16 -0700 Date: Tue, 18 Sep 2007 20:34:29 -0400 From: Jeff Dike Message-ID: <20070919003429.GA10568@c2.user-mode-linux.org> References: <5A9C383ECECEEE4F82BD5E7DCCD318E9C570C2@MABOSEVS1.ets.enterasys.com> Mime-Version: 1.0 Content-Disposition: inline In-Reply-To: <5A9C383ECECEEE4F82BD5E7DCCD318E9C570C2@MABOSEVS1.ets.enterasys.com> Subject: Re: [uml-devel] vmalloc and shared memory question List-Id: The user-mode Linux development list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: user-mode-linux-devel-bounces@lists.sourceforge.net Errors-To: user-mode-linux-devel-bounces@lists.sourceforge.net To: "Bradshaw, James" Cc: user-mode-linux-devel@lists.sourceforge.net On Tue, Sep 18, 2007 at 05:00:39PM -0400, Bradshaw, James wrote: > I'm running into a problem with a 2.6.14.7 UML kernel and I wonder if > anyone can help. The issue appears to be that memory allocated by a call > to vmalloc lies outside the UML's virtual memory map, so that a > subsequent pointer dereference ends up causing a seg fault. > Continuing past the breakpoint results in a seg fault: I think this is probably OK. UML uses SIGSEGV for page faults, and vmalloc memory is faulted in just like process memory. (gdb) handle SIGSEGV nostop noprint pass should have the effect that you want. Jeff -- Work email - jdike at linux dot intel dot com ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ User-mode-linux-devel mailing list User-mode-linux-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-devel