From mboxrd@z Thu Jan 1 00:00:00 1970 From: Michael Pellegrini Subject: Re: =?utf-8?b?cGNoX2Nhbjo=?= Data transmission stops after dropped packet Date: Wed, 21 Nov 2012 15:41:03 +0000 (UTC) Message-ID: References: <50A4972A.9070707@hartkopp.net> <50A4EA87.9020206@grandegger.com> <50A55C65.2020003@grandegger.com> <50A95FC1.3050907@grandegger.com> <50AA4FB3.7070009@grandegger.com> <50AA5EE6.6060105@grandegger.com> <50AA86DB.7000506@grandegger.com> <50AAA8C8.2080504@grandegger.com> <50ABABDE.8060503@grandegger.com> <50ABF09C.8040303@grandegger.com> <50ACABE2.2020306@grandegger.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Return-path: Received: from plane.gmane.org ([80.91.229.3]:54333 "EHLO plane.gmane.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755213Ab2KUPlQ (ORCPT ); Wed, 21 Nov 2012 10:41:16 -0500 Received: from list by plane.gmane.org with local (Exim 4.69) (envelope-from ) id 1TbCQX-0003Mf-Nr for linux-can@vger.kernel.org; Wed, 21 Nov 2012 16:41:25 +0100 Received: from 96.45.208.254 ([96.45.208.254]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Wed, 21 Nov 2012 16:41:25 +0100 Received: from mikep86 by 96.45.208.254 with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Wed, 21 Nov 2012 16:41:25 +0100 Sender: linux-can-owner@vger.kernel.org List-ID: To: linux-can@vger.kernel.org Michael Pellegrini gmail.com> writes: > I shouldn't have spoken so soon. Running my application on the PCH-System > caused the original problem within minutes. Message transmission stopped > and and my application started printing the error "No buffer space available". > The only way to recover was to reset the interface. Something of note: When I encounter the message transmission problem, dmesg prints the message "c_can_isr: irqstatus=0xXX" continuously, with the same value for irqstatus. So far, I have seen irqstatus=0x17 and irqstatus=0x19. - Mike