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: Fri, 23 Nov 2012 15:14:31 +0000 (UTC) Message-ID: References: <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> <50ACF9C0.8050206@grandegger.com> <50AD042B.3020305@grandegger.com> <50AD319E.2000209@grandegger.com> <50AF8C01.6060809@grandegger.com> <50AF8C91.3020307@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]:46010 "EHLO plane.gmane.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751978Ab2KWPOs (ORCPT ); Fri, 23 Nov 2012 10:14:48 -0500 Received: from list by plane.gmane.org with local (Exim 4.69) (envelope-from ) id 1Tbuy0-0000Xu-Rf for linux-can@vger.kernel.org; Fri, 23 Nov 2012 16:14:56 +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 ; Fri, 23 Nov 2012 16:14:56 +0100 Received: from mikep86 by 96.45.208.254 with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Fri, 23 Nov 2012 16:14:56 +0100 Sender: linux-can-owner@vger.kernel.org List-ID: To: linux-can@vger.kernel.org Wolfgang Grandegger grandegger.com> writes: > When the module is loaded the driver prints out some values. Could you > please show the output? On module load, dmesg reports: [238233.481246] c_can_pci 0000:02:0c.3: PCI INT C -> GSI 18 (level, low) -> IRQ 18 [238233.481440] c_can_pci 0000:02:0c.3: irq 41 for MSI/MSI-X [238233.481483] c_can_pci 0000:02:0c.3: MSI enabled [238233.481519] c_can_pci 0000:02:0c.3: setting latency timer to 64 [238233.481543] c_can_pci_probe: bar=1 [238233.481624] c_can_pci_probe: addr=f842c000 [238233.492906] CTRL_REG=0x0 [238233.492931] BTR_REG =0x518 [238233.492949] TEST_REG =0x80 [238233.610409] c_can_pci_reset_pch: addr=f842c1fc reset=0x0 [238233.610589] c_can_pci 0000:02:0c.3: can0: setting BTR=0518 BRPE=0000 > Another question? At what rate do you send messages? 6 to 7 messages are sent in bursts every 100ms. They are sent without any delay between each message, which is what I think is triggering this driver bug. - Mike