Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Sat, 6 Apr 2002 16:45:19 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Sat, 6 Apr 2002 16:45:18 -0500 Received: from zero.tech9.net ([209.61.188.187]:43270 "EHLO zero.tech9.net") by vger.kernel.org with ESMTP id ; Sat, 6 Apr 2002 16:45:18 -0500 Subject: Re: [PATCH] Clean up x86 interrupt entry code From: Robert Love To: Linus Torvalds Cc: Brian Gerst , Linux-Kernel In-Reply-To: Content-Type: text/plain Content-Transfer-Encoding: 7bit X-Mailer: Ximian Evolution 1.0.3 Date: 06 Apr 2002 16:45:20 -0500 Message-Id: <1018129520.899.113.camel@phantasy> Mime-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Sat, 2002-04-06 at 15:18, Linus Torvalds wrote: > It seems to be always loaded by the common interrupt code (and %ebx is a > call-saved register, so calling the interrupt handlers and returning > doesn't clobber it). True enough. I guess I should of done this from the beginning ... > But testing it may be a good idea ;^p Of course I will, but it is hard (and subject to Heisenberg principals) to test that we preempt whenever necessary. Only with the patch I sent you earlier am I seeing no missed preemptions ... now to work on the egregiously long-held locks. Robert Love - 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/