From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jeremy Fitzhardinge Subject: Re: lazy mmu and interrupts Date: Wed, 28 Mar 2007 16:01:03 -0700 Message-ID: <460AF3AF.9030703@goop.org> References: <460AA5DA.2090203@goop.org> <460AF657.6030902@vmware.com> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Return-path: In-Reply-To: <460AF657.6030902@vmware.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: virtualization-bounces@lists.linux-foundation.org Errors-To: virtualization-bounces@lists.linux-foundation.org To: Zachary Amsden Cc: Virtualization Mailing List List-Id: virtualization@lists.linuxfoundation.org Zachary Amsden wrote: > Yup, that's a pretty serious bug. Looks like the lazy mmu code needs > to save and restore interrupts, or alternatively, have kmap_atomic > turn off lazy_mmu if it is enabled. Have you seen it? I did a little lazy_mmu prototype last night and it popped up pretty quickly. J