Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752989AbaLCOJR (ORCPT ); Wed, 3 Dec 2014 09:09:17 -0500 Received: from eddie.linux-mips.org ([148.251.95.138]:51164 "EHLO cvs.linux-mips.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752889AbaLCOI5 (ORCPT ); Wed, 3 Dec 2014 09:08:57 -0500 Date: Wed, 3 Dec 2014 14:42:26 +0100 From: Ralf Baechle To: Lars Persson Cc: Leonid Yegoshin , "linux-mips@linux-mips.org" , "james.hogan@imgtec.com" , "keescook@chromium.org" , "paul.burton@imgtec.com" , "linux-kernel@vger.kernel.org" , "manuel.lauss@gmail.com" , "pbonzini@redhat.com" , "akpm@linux-foundation.org" , "blogic@openwrt.org" , "markos.chandras@imgtec.com" Subject: Re: [PATCH] Revert "MIPS: Remove race window in page fault handling" Message-ID: <20141203134226.GC16063@linux-mips.org> References: <20141203032542.15388.17340.stgit@linux-yegoshin> <1417599104.10996.16.camel@lnxlarper.se.axis.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1417599104.10996.16.camel@lnxlarper.se.axis.com> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Lars, normally set_pte_at() is invoked in a cache_flush_*() set_pte_at() tlb_flush_*() sequence. So I'm wondering if you're trying to fix something in set_pte_at that actually ought to be fixed in the cache_flush_*() function. I'm wondering, have you identified which cache flush function in particular was used in the sequence in your particular bug's case? Ralf -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/