From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stephen Hemminger Subject: Re: 2.6.19.2 sky2/acpi crashes Date: Wed, 24 Jan 2007 09:44:08 -0800 Message-ID: <20070124094408.600fd4e0@freekitty> References: <1169542768.5537.11.camel@cocoduo> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org To: Lionel Landwerlin Return-path: Received: from smtp.osdl.org ([65.172.181.24]:46924 "EHLO smtp.osdl.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752056AbXAXRqO (ORCPT ); Wed, 24 Jan 2007 12:46:14 -0500 In-Reply-To: <1169542768.5537.11.camel@cocoduo> Sender: netdev-owner@vger.kernel.org List-Id: netdev.vger.kernel.org On Tue, 23 Jan 2007 09:59:28 +0100 Lionel Landwerlin wrote: > Hi, > > I'm running a macbook with a Marvell ethernet controller, and I have a > lots of freezes when using the ethernet controller under a load of > ~100K/s. Since I'm running a 2.6.19.2 kernel, I'm able to get some > report from the kernel. Here they are : Please send sky2 bugs to me and netdev@vger.kernel.org. > I hope some fix could be released soon. I get problem reports all the time, unfortunately, so far these have not been reproducible on the configurations and hardware I have. I am not denying there is a problem, but if I can't reproduce it, it takes a long time to fix. Your problem seems to be missed/lost interrupts. If you display the contents of /proc/interrupts (ie cat /proc/interrupts), it will show whether level (good), edge (bad) or MSI (good if hw works) are being used. Some workaround related things to try are: 1) Adding the module parameter "idle_timeout=10" will cause the driver to poll for status every 10ms. This is obviously a performance overhead but it can allow system to function. 2) Disabling MSI with either "pci=nomsi" on boot cmdline or by using module parameter "disable_msi=1". Message Signaled Interrupts are good, but it seems some chipsets don't work right. -- Stephen Hemminger