From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S264129AbUDVPb5 (ORCPT ); Thu, 22 Apr 2004 11:31:57 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S264116AbUDVPb5 (ORCPT ); Thu, 22 Apr 2004 11:31:57 -0400 Received: from mx1.redhat.com ([66.187.233.31]:36575 "EHLO mx1.redhat.com") by vger.kernel.org with ESMTP id S264132AbUDVPbB (ORCPT ); Thu, 22 Apr 2004 11:31:01 -0400 From: Jeff Moyer MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-ID: <16519.58589.773562.492935@segfault.boston.redhat.com> Date: Thu, 22 Apr 2004 11:29:33 -0400 To: linux-kernel@vger.kernel.org Subject: netconsole hangs w/ alt-sysrq-t X-Mailer: VM 7.14 under 21.4 (patch 13) "Rational FORTRAN" XEmacs Lucid Reply-To: jmoyer@redhat.com X-PGP-KeyID: 1F78E1B4 X-PGP-CertKey: F6FE 280D 8293 F72C 65FD 5A58 1FF8 A7CA 1F78 E1B4 X-PCLoadLetter: What the f**k does that mean? Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org 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. No easy solutions jump out at me, unfortunately. Comments? Regards, Jeff