From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261598AbTJWDPg (ORCPT ); Wed, 22 Oct 2003 23:15:36 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261601AbTJWDPf (ORCPT ); Wed, 22 Oct 2003 23:15:35 -0400 Received: from mail5.mx.voyager.net ([216.93.66.204]:12294 "EHLO mail5.mx.voyager.net") by vger.kernel.org with ESMTP id S261598AbTJWDPd (ORCPT ); Wed, 22 Oct 2003 23:15:33 -0400 Message-ID: <3F9748A3.D8B313F8@megsinet.net> Date: Wed, 22 Oct 2003 22:18:59 -0500 From: "M.H.VanLeeuwen" X-Mailer: Mozilla 4.8 [en] (X11; U; Linux 2.6.0-test8 i686) X-Accept-Language: en MIME-Version: 1.0 To: torvalds@osdl.org CC: linux-kernel@vger.kernel.org Subject: [BUG somewhere] 2.6.0-test8 irq.c, IRQ_INPROGRESS ? References: 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 Hi, I'm seeing an NMI Watchdog detected LOCKUP go away when I revert this patch previously added into test8. Any help appreciated. Martin diff -Nru a/arch/i386/kernel/irq.c b/arch/i386/kernel/irq.c --- a/arch/i386/kernel/irq.c Fri Oct 17 14:43:50 2003 +++ b/arch/i386/kernel/irq.c Fri Oct 17 14:43:50 2003 @@ -378,7 +380,7 @@ spin_lock_irqsave(&desc->lock, flags); switch (desc->depth) { case 1: { - unsigned int status = desc->status & ~IRQ_DISABLED; + unsigned int status = desc->status & ~(IRQ_DISABLED | IRQ_INPROGRESS); desc->status = status; if ((status & (IRQ_PENDING | IRQ_REPLAY)) == IRQ_PENDING) { desc->status = status | IRQ_REPLAY; EIP is at .text.lock.8390+0x39/0x63 which is in ei_start_xmit() in 8390.c at the first spin_lock_irqsave(). I hand copied the data from the console, what else is interesting/necessary? First notices after booting into test8 and the system went silent when starting X, since /home is NFS mounted go generate network and IDE activity. Reproducible by doing all 3 of these (any 2 and the system stays alive, longer than I want to wait) 1. ping flood A->B 2. ping flood B->A 3. find and grep for garbage from IDE on B's /dev/md/X filesystem System B is SMP dual Celeron 466Mhz. Eth interface: isapnp: Scanning for PnP cards... isapnp: Card 'SMC EZ Card (1660)' isapnp: 1 Plug & Play card detected total pnp: Device 00:01.00 activated. ne.c: ISAPnP reports Generic PNP at i/o 0x220, irq 5. ne.c:v1.10 9/23/94 Donald Becker (becker@scyld.com) Last modified Nov 1, 2000 by Paul Gortmaker NE*000 ethercard probe at 0x220: 00 e0 29 3c 1f 11 eth0: NE2000 found at 0x220, using IRQ 5. IDE interface: PIIX4: IDE controller at PCI slot 0000:00:07.1 PIIX4: chipset revision 1 PIIX4: not 100% native mode: will probe irqs later ide0: BM-DMA at 0xf000-0xf007, BIOS settings: hda:pio, hdb:pio ide1: BM-DMA at 0xf008-0xf00f, BIOS settings: hdc:pio, hdd:pio HPT366: onboard version of chipset, pin1=1 pin2=2 HPT366: IDE controller at PCI slot 0000:00:13.0 HPT366: chipset revision 1 HPT366: 100% native mode on irq 18 ide2: BM-DMA at 0xdc00-0xdc07, BIOS settings: hde:pio, hdf:pio ide3: BM-DMA at 0xe800-0xe807, BIOS settings: hdg:pio, hdh:pio hde: WDC WD400BB-32AUA1, ATA DISK drive ide2 at 0xd400-0xd407,0xd802 on irq 18 hdg: ST340810A, ATA DISK drive ide3 at 0xe000-0xe007,0xe402 on irq 18 hde: max request size: 128KiB hde: 78165360 sectors (40020 MB) w/2048KiB Cache, CHS=65535/16/63, UDMA(66) /dev/ide/host2/bus0/target0/lun0: p1 p2 p3 p4 < p5 p6 p7 p8 p9 > hdg: max request size: 128KiB hdg: 78165360 sectors (40020 MB) w/2048KiB Cache, CHS=65535/16/63, UDMA(66) /dev/ide/host3/bus0/target0/lun0: p1 p2 p3 p4 < p5 p6 p7 p8 p9 > /proc/interrupts (currently running 2.6.0-test8) CPU0 CPU1 0: 52531411 84 IO-APIC-edge timer 1: 10288 1 IO-APIC-edge i8042 2: 0 0 XT-PIC cascade 5: 1908410 66015823 IO-APIC-edge NE2000 8: 1 0 IO-APIC-edge rtc 12: 56098 1 IO-APIC-edge i8042 16: 3663003 0 IO-APIC-level r128@PCI:1:0:0 18: 162982 300769 IO-APIC-level ide2, ide3 NMI: 52531430 52531316 LOC: 52544445 52544450 ERR: 42 MIS: 999