From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263041AbUDYTQD (ORCPT ); Sun, 25 Apr 2004 15:16:03 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263219AbUDYTQD (ORCPT ); Sun, 25 Apr 2004 15:16:03 -0400 Received: from waste.org ([209.173.204.2]:13967 "EHLO waste.org") by vger.kernel.org with ESMTP id S263041AbUDYTQA (ORCPT ); Sun, 25 Apr 2004 15:16:00 -0400 Date: Sun, 25 Apr 2004 14:15:43 -0500 From: Matt Mackall To: Jeff Moyer Cc: linux-kernel@vger.kernel.org Subject: Re: netconsole hangs w/ alt-sysrq-t Message-ID: <20040425191543.GV28459@waste.org> References: <16519.58589.773562.492935@segfault.boston.redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <16519.58589.773562.492935@segfault.boston.redhat.com> User-Agent: Mutt/1.3.28i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Apr 22, 2004 at 11:29:33AM -0400, Jeff Moyer wrote: > If netconsole is enabled, and you hit Alt-Sysrq-t, then it will print a > small amount of output to the console(s) and then hang the system. In this > case, I'm using the e100 driver, and we end up exhausting the available > cbs. Since we are in interrupt context, the driver's poll routine is never > run, and we loop infinitely waiting for resources to free up that never > will. Kernel version is 2.6.5. Can you try 2.6.6-rc2? It has a fix to congestion handling that should address this. -- Matt Mackall : http://www.selenic.com : Linux development and consulting