From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S264358AbTDPNNy (for ); Wed, 16 Apr 2003 09:13:54 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S264362AbTDPNNy (for ); Wed, 16 Apr 2003 09:13:54 -0400 Received: from mail.ithnet.com ([217.64.64.8]:60168 "HELO heather.ithnet.com") by vger.kernel.org with SMTP id S264358AbTDPNNx (for ); Wed, 16 Apr 2003 09:13:53 -0400 Date: Wed, 16 Apr 2003 15:12:21 +0200 From: Stephan von Krawczynski To: linux-kernel Cc: Kai Germaschewski Subject: ISDN massive packet drops while DVD burn/verify Message-Id: <20030416151221.71d099ba.skraw@ithnet.com> Organization: ith Kommunikationstechnik GmbH X-Mailer: Sylpheed version 0.8.11 (GTK+ 1.2.10; i686-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hello all, I just experienced a massive ISDN problem while writing DVDs. It looks like bigger IP packets (bigger than normal ICMP ping) get simply dropped most of the time. I think the packets get lost because some allocation continously fails and disk i/o is faster in re-gaining the mem, but I am not quite sure. Could as well be ide-scsi is partially busy-looping the box to death. As soon as DVD writing is stopped everything comes back to normal. Reading DVDs does not show the problem btw. ping -s 1500 a.b.c.d shows about 5 packets, then stops. This is with 2.4.21-pre6. The box is: 00:00.0 Host bridge: ServerWorks CNB20HE Host Bridge (rev 23) 00:00.1 Host bridge: ServerWorks CNB20HE Host Bridge (rev 01) 00:00.2 Host bridge: ServerWorks: Unknown device 0006 (rev 01) 00:00.3 Host bridge: ServerWorks: Unknown device 0006 (rev 01) 00:02.0 Ethernet controller: Intel Corp. 82557/8/9 [Ethernet Pro 100] (rev 0d) 00:03.0 Ethernet controller: Intel Corp. 82557/8/9 [Ethernet Pro 100] (rev 0d) 00:04.0 Network controller: Elsa AG QuickStep 1000 (rev 01) 00:05.0 Multimedia audio controller: Creative Labs SB Live! EMU10k1 (rev 07) 00:05.1 Input device controller: Creative Labs SB Live! MIDI/Game Port (rev 07) 00:07.0 VGA compatible controller: ATI Technologies Inc Rage XL (rev 27) 00:0f.0 ISA bridge: ServerWorks CSB5 South Bridge (rev 93) 00:0f.1 IDE interface: ServerWorks CSB5 IDE Controller (rev 93) 00:0f.2 USB Controller: ServerWorks OSB4/CSB5 USB Controller (rev 05) 00:0f.3 Host bridge: ServerWorks: Unknown device 0225 01:02.0 RAID bus controller: 3ware Inc 3ware 7000-series ATA-RAID (rev 01) 01:04.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5701 Gigabit Ethernet (rev 15) 02:02.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5701 Gigabit Ethernet (rev 15) 02:03.0 SCSI storage controller: Adaptec AIC-7899P U160/m (rev 01) 02:03.1 SCSI storage controller: Adaptec AIC-7899P U160/m (rev 01) /proc/meminfo Mem: 3180371968 3171123200 9248768 0 544501760 2174619648 Swap: 2147467264 129138688 2018328576 MemTotal: 3105832 kB MemFree: 9032 kB MemShared: 0 kB Buffers: 531740 kB Cached: 2100388 kB SwapCached: 23264 kB Active: 724880 kB Inactive: 2157696 kB HighTotal: 2228204 kB HighFree: 2896 kB LowTotal: 877628 kB LowFree: 6136 kB SwapTotal: 2097136 kB SwapFree: 1971024 kB DVD is connected via ide-scsi. Data is on a disk connected to 3ware controller. -- Regards, Stephan