From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Fri, 12 Jan 2001 16:31:59 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Fri, 12 Jan 2001 16:31:52 -0500 Received: from colorfullife.com ([216.156.138.34]:62213 "EHLO colorfullife.com") by vger.kernel.org with ESMTP id ; Fri, 12 Jan 2001 16:31:44 -0500 Message-ID: <3A5F77B1.90AE31CE@colorfullife.com> Date: Fri, 12 Jan 2001 22:31:29 +0100 From: Manfred Spraul X-Mailer: Mozilla 4.75 [en] (X11; U; Linux 2.2.16-22 i586) X-Accept-Language: en MIME-Version: 1.0 To: Frank de Lange CC: mingo@elte.hu, Linus Torvalds , dwmw2@infradead.org, linux-kernel@vger.kernel.org, Alan Cox Subject: Re: QUESTION: Network hangs with BP6 and 2.4.x kernels, hardwarerelated? In-Reply-To: <3A5F6F07.88564D5B@colorfullife.com> <20010112220729.D27809@unternet.org> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Frank de Lange wrote: > > On Fri, Jan 12, 2001 at 09:54:31PM +0100, Manfred Spraul wrote: > > I have found one combination that doesn't hang with the unpatched > > 8390.c, but network throughput is down to 1/2. I hope that's due to the > > debugging changes. > > Hm, could it be that the fact that network throughput is halved causes the > problem not to appear? No. The problem is still there. But now lots of losts packets instead of a total hang. Due to the modification of mask_irq now disable_irq_nosync and enable_irq act as if I would press SysRQ+q every millisecond, and thus the io apic is immediatly reset when it got stuck. Btw, my initial assumption about EOI to masked interrupt must be wrong: 2.2 always first masks the irq, then it sends the EOI, and 2.2 doesn't hang. -- Manfred - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org Please read the FAQ at http://www.tux.org/lkml/