Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261684AbUCPVZL (ORCPT ); Tue, 16 Mar 2004 16:25:11 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261231AbUCPVZK (ORCPT ); Tue, 16 Mar 2004 16:25:10 -0500 Received: from weber.sscnet.ucla.edu ([128.97.42.3]:39869 "EHLO weber.sscnet.ucla.edu") by vger.kernel.org with ESMTP id S261684AbUCPVYs (ORCPT ); Tue, 16 Mar 2004 16:24:48 -0500 Message-ID: <4057709A.8080808@cogweb.net> Date: Tue, 16 Mar 2004 13:24:42 -0800 From: Francis F Steen User-Agent: Mozilla Thunderbird 0.5 (X11/20040304) X-Accept-Language: en-us, en MIME-Version: 1.0 To: linux-kernel@vger.kernel.org Subject: 2.6.3 ifdown race Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2403 Lines: 67 In kernel 2.6.3, if I take down the network connection, within a second or so top shows 99.9% CPU utilization for [events/0]. When I restablish a network connection, it calms down at once. I had the same behavior in 2.6.0. Details below -- what can I do to get more information on what is happening? Cheers, David (Please cc: me) #lspci 00:00.0 Host bridge: ALi Corporation M1671 Super P4 Northbridge [AGP4X,PCI and SDR/DDR] (rev 02) 00:01.0 PCI bridge: ALi Corporation PCI to AGP Controller 00:06.0 Multimedia audio controller: ALi Corporation M5451 PCI AC-Link Controller Audio Device (rev 02) 00:07.0 ISA bridge: ALi Corporation M1533 PCI to ISA Bridge [Aladdin IV] 00:08.0 Modem: ALi Corporation Intel 537 [M5457 AC-Link Modem] 00:09.0 Network controller: Harris Semiconductor Prism 2.5 Wavelan chipset (rev 01) 00:0a.0 CardBus bridge: Texas Instruments PCI1410 PC card Cardbus Controller (rev 02) 00:0b.0 USB Controller: VIA Technologies, Inc. USB (rev 50) 00:0b.1 USB Controller: VIA Technologies, Inc. USB (rev 50) 00:0b.2 USB Controller: VIA Technologies, Inc. USB 2.0 (rev 51) 00:0c.0 FireWire (IEEE 1394): Texas Instruments TSB43AB22/A IEEE-1394a-2000 Controller (PHY/Link) 00:10.0 IDE interface: ALi Corporation M5229 IDE (rev c4) 00:11.0 Bridge: ALi Corporation M7101 PMU 00:12.0 Ethernet controller: National Semiconductor Corporation DP83815 (MacPhyter) Ethernet Controller 01:00.0 VGA compatible controller: nVidia Corporation NV17 [GeForce4 420 Go 32M] (rev a3) #dmesg natsemi dp8381x driver, version 1.07+LK1.0.17, Sep 27, 2002 originally by Donald Becker http://www.scyld.com/network/natsemi.html 2.4.x kernel port by Jeff Garzik, Tjeerd Mulder eth0: NatSemi DP8381[56] at 0xe089d000, 00:c0:9f:15:0f:59, IRQ 5. eth0: link up. eth0: Setting full-duplex based on negotiated link capability. eth0: remaining active for wake-on-lan eth0: link up. eth0: Setting full-duplex based on negotiated link capability. # ifdown eth0 # top 3 root 15 -10 0 0 0 R 99.9 0.0 4:06.09 events/0 # ps aux | grep events root 3 0.0 0.0 0 0 ? RW< Mar14 1:00 [events/0] - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/