Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751007Ab0DIAnf (ORCPT ); Thu, 8 Apr 2010 20:43:35 -0400 Received: from adelphi.physics.adelaide.edu.au ([129.127.102.1]:40234 "EHLO adelphi.physics.adelaide.edu.au" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750788Ab0DIAnd (ORCPT ); Thu, 8 Apr 2010 20:43:33 -0400 From: Jonathan Woithe Message-Id: <201004090043.o390hSjL014351@turbo.physics.adelaide.edu.au> Subject: 2.6.33: libata issues with VIA SATA/PATA controller To: linux-kernel@vger.kernel.org Date: Fri, 9 Apr 2010 10:13:28 +0930 (CST) Cc: jwoithe@physics.adelaide.edu.au (Jonathan Woithe) X-Mailer: ELM [version 2.5 PL6] MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 19001 Lines: 390 Hi I have a machine equipped with the following SATA/PATA controllers: * 00:0f.1 IDE interface: VIA Technologies, Inc. VT82C586A/B/VT82C686/A/B/ VT823x/A/C PIPC Bus Master IDE (rev 06) * 00:0f.0 RAID bus controller: VIA Technologies, Inc. VIA VT6420 SATA RAID Controller (rev 80) Two hard drives are attached to the SATA controller (messages from 2.6.24.2): scsi 0:0:0:0: Direct-Access ATA WDC WD2502ABYS-0 02.0 PQ: 0 ANSI: 5 scsi 1:0:0:0: Direct-Access ATA WDC WD2502ABYS-0 02.0 PQ: 0 ANSI: 5 Both drives are jumpered to force 1.5 Gbps SATA speed. This is needed because these WD drives won't automatically fall back to 1.5 Gbps if 3.0 Gbps isn't requested, and the VIA controller in use is only capable of 1.5 Gbps. The PATA interface has a tape drive attached as primary master and a CD writer attached as secondary master. Under 2.6.24.2 these show up as hda: SONY SDX-260V, ATAPI TAPE drive hdc: ATAPI 40X CD-ROM CD-R/RW drive, 2048kB Cache The problem I have is that I am unable to boot 2.6.33 (or 2.6.33.2). The interfaces are probed but it seems the system has trouble communicating reliably over the SATA links. Sometimes both drives are identified correctly, only to encounter I/O errors when the partition table is read. Other times failures occur during the drive detection phase. The problem persists even when both PATA devices have been unplugged, so the PATA devices themselves are not the cause. In all cases the end result is the same: the rootfs can't be found, the kernel panics. The 2.6.33.2 I have tried to boot today is configured to use libata VIA PATA support. The 2.6.24.2 kernel (which mostly works, except for some issues with ide-tape which might be hardware related) instead uses the old ide driver for the PATA interface. I have not yet been able to test whether disabling the VIA PATA component of libata works around the problem. The reason for enabling libata VIA PATA support is due to ongoing issues with ide-tape in recent kernels (I've tried from 2.6.29 on). The suggestion was made to try libata since its tape driver was in better shape. Unfortunately the machine in question is a production machine and I have limited opportunities to reboot and test kernels. I also didn't have a camera handy to take screen shots this morning during testing. The following are messages I noted by hand before they were scrolled away by the panic. ata1: lost interrupt status 0x50 unhandled error code Result: hostbyte=0x00, driverbyte=0x06 CDB: cdb[0] = 0x28 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x08 0x00 end request: I/O error, dev sda, sector 0 The same was repeated for ata2 / sdb. Another group of messages which crops up during drive detection is: qc timeout cmd 0x27 failed to read native max address (error mask 0x4) HPA suport seems broken, skipping HPA handling I would like to try to get to the bottom of what's happening here. This problem does not occur in 2.6.24.2 (using the VIA ide PATA driver). Both 2.6.33 and 2.6.33.2 (with the VIA libata PATA driver) suffer from the problem. If there are further tests I can do please let me know and I'll do my best to schedule them (given that the machine in question is a production system). Also ask if you require more information about the machine. Finally, there's a complete dmsg output I get from 2.6.24.2 at the end of this email in case it contains additional useful information on the hardware configuration of this system. Please CC me any replies to ensure I see them (I monitor lkml via web gateways, so it's easy to miss followups at times). Regards jonatha ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.PCI1._PRT] ACPI: PCI Interrupt Link [LNKA] (IRQs 3 4 5 6 7 9 10 *11 12) ACPI: PCI Interrupt Link [LNKB] (IRQs 3 4 5 6 7 9 10 11 12) *0, disabled. ACPI: PCI Interrupt Link [LNKC] (IRQs 3 4 5 6 7 9 10 11 12) *0, disabled. ACPI: PCI Interrupt Link [LNKD] (IRQs 3 4 5 6 7 9 10 11 12) *0, disabled. ACPI: PCI Interrupt Link [LNKE] (IRQs 3 4 *5 6 7 9 10 11 12) ACPI: PCI Interrupt Link [LNKF] (IRQs 3 4 5 6 7 *9 10 11 12) ACPI: PCI Interrupt Link [LNKG] (IRQs 3 4 5 6 7 9 10 *11 12) ACPI: PCI Interrupt Link [LNKH] (IRQs 3 4 5 6 7 9 10 11 12) *15, disabled. Linux Plug and Play Support v0.97 (c) Adam Belay pnp: PnP ACPI init ACPI: bus type pnp registered pnp: PnP ACPI: found 14 devices ACPI: ACPI bus type pnp unregistered SCSI subsystem initialized libata version 3.00 loaded. PCI: Using ACPI for IRQ routing PCI: If a device doesn't work, try "pci=routeirq". If it helps, post a report Time: tsc clocksource has been installed. system 00:00: iomem range 0x0-0x9ffff could not be reserved system 00:00: iomem range 0xf0000-0xfffff could not be reserved system 00:00: iomem range 0x100000-0x3fffffff could not be reserved system 00:00: iomem range 0xfec00000-0xfec000ff could not be reserved system 00:00: iomem range 0xfee00000-0xfee00fff could not be reserved system 00:02: ioport range 0xe400-0xe47f has been reserved system 00:02: ioport range 0xe800-0xe81f has been reserved system 00:02: iomem range 0xfff80000-0xffffffff could not be reserved system 00:02: iomem range 0xffb80000-0xffbfffff has been reserved system 00:03: ioport range 0x4d0-0x4d1 has been reserved system 00:0d: ioport range 0x290-0x297 has been reserved system 00:0d: ioport range 0x370-0x375 has been reserved PCI: Bridge: 0000:00:01.0 IO window: disabled. MEM window: f4000000-f5efffff PREFETCH window: f5f00000-f7ffffff PCI: Setting latency timer of device 0000:00:01.0 to 64 NET: Registered protocol family 2 IP route cache hash table entries: 32768 (order: 5, 131072 bytes) TCP established hash table entries: 131072 (order: 8, 1048576 bytes) TCP bind hash table entries: 65536 (order: 6, 262144 bytes) TCP: Hash tables configured (established 131072 bind 65536) TCP reno registered Simple Boot Flag at 0x3a set to 0x1 Machine check exception polling timer started. microcode: CPU0 not a capable Intel processor IA-32 Microcode Update Driver: v1.14a highmem bounce pool size: 64 pages Total HugeTLB memory allocated, 0 VFS: Disk quotas dquot_6.5.1 Dquot-cache hash table entries: 1024 (order 0, 4096 bytes) Installing knfsd (copyright (C) 1996 okir@monad.swb.de). SGI XFS with ACLs, large block numbers, no debug enabled SGI XFS Quota Management subsystem io scheduler noop registered io scheduler anticipatory registered (default) io scheduler deadline registered io scheduler cfq registered PCI: VIA PCI bridge detected. Disabling DAC. Boot video device is 0000:01:00.0 input: Power Button (FF) as /class/input/input0 ACPI: Power Button (FF) [PWRF] input: Power Button (CM) as /class/input/input1 ACPI: Power Button (CM) [PWRB] Real Time Clock Driver v1.12ac Linux agpgart interface v0.102 agpgart: Detected VIA KT400/KT400A/KT600 chipset agpgart: AGP aperture is 64M @ 0xf8000000 Hangcheck: starting hangcheck timer 0.9.0 (tick is 180 seconds, margin is 60 seconds). Hangcheck: Using get_cycles(). Serial: 8250/16550 driver $Revision: 1.90 $ 4 ports, IRQ sharing disabled serial8250: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A 00:0a: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A PCI: Enabling device 0000:00:13.0 (0000 -> 0001) ACPI: PCI Interrupt Link [LNKC] enabled at IRQ 11 PCI: setting IRQ 11 as level-triggered ACPI: PCI Interrupt 0000:00:13.0[A] -> Link [LNKC] -> GSI 11 (level, low) -> IRQ 11 0000:00:13.0: ttyS1 at I/O 0x8000 (irq = 11) is a 16550A Floppy drive(s): fd0 is 1.44M FDC 0 is a post-1991 82077 RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize loop: module loaded console [netcon0] enabled netconsole: network logging started Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2 ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx VP_IDE: IDE controller (0x1106:0x0571 rev 0x06) at PCI slot 0000:00:0f.1 ACPI: PCI Interrupt Link [LNKE] enabled at IRQ 5 PCI: setting IRQ 5 as level-triggered ACPI: PCI Interrupt 0000:00:0f.1[A] -> Link [LNKE] -> GSI 5 (level, low) -> IRQ 5 PCI: VIA VLink IRQ fixup for 0000:00:0f.1, from 255 to 5 VP_IDE: not 100% native mode: will probe irqs later VP_IDE: VIA vt8237 (rev 00) IDE UDMA133 controller on pci0000:00:0f.1 ide0: BM-DMA at 0xa000-0xa007, BIOS settings: hda:DMA, hdb:pio ide1: BM-DMA at 0xa008-0xa00f, BIOS settings: hdc:DMA, hdd:pio Probing IDE interface ide0... Switched to high resolution mode on CPU 0 hda: SONY SDX-260V, ATAPI TAPE drive hda: host max PIO5 wanted PIO255(auto-tune) selected PIO4 hda: UDMA/100 mode selected ide0 at 0x1f0-0x1f7,0x3f6 on irq 14 Probing IDE interface ide1... hdc: LITE-ON LTR-32123S, ATAPI CD/DVD-ROM drive hdc: host max PIO5 wanted PIO255(auto-tune) selected PIO4 hdc: UDMA/33 mode selected ide1 at 0x170-0x177,0x376 on irq 15 hdc: ATAPI 40X CD-ROM CD-R/RW drive, 2048kB Cache Uniform CD-ROM driver Revision: 3.20 ide-tape: hda <-> ht0: SONY SDX-260V rev 0100 ide-tape: hda: overriding capabilities->speed (assuming 650KB/sec) ide-tape: hda: overriding capabilities->max_speed (assuming 650KB/sec) ide-tape: decreasing stage size ide-tape: decreasing stage size ide-tape: decreasing stage size ide-tape: hda <-> ht0: 650KBps, 126*32kB buffer, 6336kB pipeline, 100ms tDSC, DMA st: Version 20070203, fixed bufsize 32768, s/g segs 256 Driver 'st' needs updating - please use bus_type methods Driver 'sd' needs updating - please use bus_type methods Driver 'sr' needs updating - please use bus_type methods sata_via 0000:00:0f.0: version 2.3 ACPI: PCI Interrupt Link [LNKF] BIOS reported IRQ 0, using IRQ 9 ACPI: PCI Interrupt Link [LNKF] enabled at IRQ 9 PCI: setting IRQ 9 as level-triggered ACPI: PCI Interrupt 0000:00:0f.0[B] -> Link [LNKF] -> GSI 9 (level, low) -> IRQ 9 PCI: VIA VLink IRQ fixup for 0000:00:0f.0, from 5 to 9 sata_via 0000:00:0f.0: routed to hard irq line 9 scsi0 : sata_via scsi1 : sata_via ata1: SATA max UDMA/133 cmd 0xd000 ctl 0xb800 bmdma 0xa800 irq 9 ata2: SATA max UDMA/133 cmd 0xb400 ctl 0xb000 bmdma 0xa808 irq 9 ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300) ata1.00: ATA-8: WDC WD2502ABYS-01B7A0, 02.03B02, max UDMA/133 ata1.00: 490350672 sectors, multi 16: LBA48 NCQ (depth 0/32) ata1.00: configured for UDMA/133 ata2: SATA link up 1.5 Gbps (SStatus 113 SControl 300) ata2.00: ATA-8: WDC WD2502ABYS-01B7A0, 02.03B02, max UDMA/133 ata2.00: 490350672 sectors, multi 16: LBA48 NCQ (depth 0/32) ata2.00: configured for UDMA/133 scsi 0:0:0:0: Direct-Access ATA WDC WD2502ABYS-0 02.0 PQ: 0 ANSI: 5 sd 0:0:0:0: [sda] 490350672 512-byte hardware sectors (251060 MB) sd 0:0:0:0: [sda] Write Protect is off sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00 sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA sd 0:0:0:0: [sda] 490350672 512-byte hardware sectors (251060 MB) sd 0:0:0:0: [sda] Write Protect is off sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00 sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA sda: sda1 sda2 < sda5 sda6 sda7 sda8 > sd 0:0:0:0: [sda] Attached SCSI disk sd 0:0:0:0: Attached scsi generic sg0 type 0 scsi 1:0:0:0: Direct-Access ATA WDC WD2502ABYS-0 02.0 PQ: 0 ANSI: 5 sd 1:0:0:0: [sdb] 490350672 512-byte hardware sectors (251060 MB) sd 1:0:0:0: [sdb] Write Protect is off sd 1:0:0:0: [sdb] Mode Sense: 00 3a 00 00 sd 1:0:0:0: [sdb] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA sd 1:0:0:0: [sdb] 490350672 512-byte hardware sectors (251060 MB) sd 1:0:0:0: [sdb] Write Protect is off sd 1:0:0:0: [sdb] Mode Sense: 00 3a 00 00 sd 1:0:0:0: [sdb] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA sdb: sdb1 sdb2 < sdb5 sdb6 sdb7 sdb8 > sd 1:0:0:0: [sdb] Attached SCSI disk sd 1:0:0:0: Attached scsi generic sg1 type 0 PNP: PS/2 Controller [PNP0303:PS2K,PNP0f03:PS2M] at 0x60,0x64 irq 1,12 serio: i8042 KBD port at 0x60,0x64 irq 1 serio: i8042 AUX port at 0x60,0x64 irq 12 mice: PS/2 mouse device common for all mice input: AT Translated Set 2 keyboard as /class/input/input2 input: ImPS/2 Generic Wheel Mouse as /class/input/input3 device-mapper: ioctl: 4.12.0-ioctl (2007-10-02) initialised: dm-devel@redhat.com EDAC MC: Ver: 2.1.0 Feb 15 2008 TCP cubic registered NET: Registered protocol family 1 NET: Registered protocol family 17 RPC: Registered udp transport module. RPC: Registered tcp transport module. Using IPI Shortcut mode UDF-fs: No VRS found XFS mounting filesystem sda1 Ending clean XFS mount for filesystem: sda1 VFS: Mounted root (xfs filesystem) readonly. Freeing unused kernel memory: 172k freed Adding 2008084k swap on /dev/sda5. Priority:-1 extents:1 across:2008084k 8139too Fast Ethernet driver 0.9.28 PCI: Enabling device 0000:00:0d.0 (0004 -> 0007) ACPI: PCI Interrupt Link [LNKA] enabled at IRQ 11 ACPI: PCI Interrupt 0000:00:0d.0[A] -> Link [LNKA] -> GSI 11 (level, low) -> IRQ 11 eth0: RealTek RTL8139 at 0xf8870000, 00:02:44:43:56:2d, IRQ 11 eth0: Identified 8139 chip type 'RTL-8100B/8139D' via-rhine.c:v1.10-LK1.4.3 2007-03-06 Written by Donald Becker ACPI: PCI Interrupt 0000:00:12.0[A] -> Link [LNKE] -> GSI 5 (level, low) -> IRQ 5 eth1: VIA Rhine II at 0xf2000000, 00:0e:a6:70:fc:45, IRQ 5. eth1: MII PHY found at address 1, status 0x786d advertising 01e1 Link 0020. PCI: Enabling device 0000:00:0c.0 (0094 -> 0097) ACPI: PCI Interrupt Link [LNKD] enabled at IRQ 10 PCI: setting IRQ 10 as level-triggered ACPI: PCI Interrupt 0000:00:0c.0[A] -> Link [LNKD] -> GSI 10 (level, low) -> IRQ 10 ohci1394: fw-host0: OHCI-1394 1.0 (PCI): IRQ=[10] MMIO=[f3800000-f38007ff] Max Packet=[2048] IR/IT contexts=[8/8] usbcore: registered new interface driver usbfs usbcore: registered new interface driver hub usbcore: registered new device driver usb USB Universal Host Controller Interface driver v3.0 ACPI: PCI Interrupt 0000:00:10.0[A] -> Link [LNKE] -> GSI 5 (level, low) -> IRQ 5 uhci_hcd 0000:00:10.0: UHCI Host Controller uhci_hcd 0000:00:10.0: new USB bus registered, assigned bus number 1 uhci_hcd 0000:00:10.0: irq 5, io base 0x00009800 usb usb1: configuration #1 chosen from 1 choice hub 1-0:1.0: USB hub found hub 1-0:1.0: 2 ports detected ACPI: PCI Interrupt 0000:00:10.1[A] -> Link [LNKE] -> GSI 5 (level, low) -> IRQ 5 uhci_hcd 0000:00:10.1: UHCI Host Controller uhci_hcd 0000:00:10.1: new USB bus registered, assigned bus number 2 uhci_hcd 0000:00:10.1: irq 5, io base 0x00009400 usb usb2: configuration #1 chosen from 1 choice hub 2-0:1.0: USB hub found hub 2-0:1.0: 2 ports detected ACPI: PCI Interrupt 0000:00:10.2[B] -> Link [LNKF] -> GSI 9 (level, low) -> IRQ 9 uhci_hcd 0000:00:10.2: UHCI Host Controller uhci_hcd 0000:00:10.2: new USB bus registered, assigned bus number 3 uhci_hcd 0000:00:10.2: irq 9, io base 0x00009000 usb usb3: configuration #1 chosen from 1 choice hub 3-0:1.0: USB hub found hub 3-0:1.0: 2 ports detected ACPI: PCI Interrupt 0000:00:10.3[B] -> Link [LNKF] -> GSI 9 (level, low) -> IRQ 9 PCI: VIA VLink IRQ fixup for 0000:00:10.3, from 0 to 9 uhci_hcd 0000:00:10.3: UHCI Host Controller uhci_hcd 0000:00:10.3: new USB bus registered, assigned bus number 4 uhci_hcd 0000:00:10.3: irq 9, io base 0x00008800 usb usb4: configuration #1 chosen from 1 choice hub 4-0:1.0: USB hub found hub 4-0:1.0: 2 ports detected ACPI: PCI Interrupt Link [LNKG] enabled at IRQ 11 ACPI: PCI Interrupt 0000:00:10.4[C] -> Link [LNKG] -> GSI 11 (level, low) -> IRQ 11 ehci_hcd 0000:00:10.4: EHCI Host Controller ehci_hcd 0000:00:10.4: new USB bus registered, assigned bus number 5 ehci_hcd 0000:00:10.4: irq 11, io mem 0xf2800000 ehci_hcd 0000:00:10.4: USB 2.0 started, EHCI 1.00, driver 10 Dec 2004 usb usb5: configuration #1 chosen from 1 choice hub 5-0:1.0: USB hub found hub 5-0:1.0: 8 ports detected Initializing USB Mass Storage driver... usbcore: registered new interface driver usb-storage USB Mass Storage support registered. ieee1394: Node added: ID:BUS[0-00:1023] GUID[0030e033e013009a] ieee1394: Host added: ID:BUS[0-01:1023] GUID[00110600000044f6] scsi2 : SBP-2 IEEE-1394 ieee1394: sbp2: Logged into SBP-2 device ieee1394: sbp2: Node 0-00:1023: Max speed [S400] - Max payload [2048] scsi 2:0:0:0: Direct-Access-RBC WDC WD50 00AAKB-00H8A0 PQ: 0 ANSI: 4 sd 2:0:0:0: [sdc] 976773168 512-byte hardware sectors (500108 MB) sd 2:0:0:0: [sdc] Write Protect is off sd 2:0:0:0: [sdc] Mode Sense: 11 00 00 00 sd 2:0:0:0: [sdc] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA sd 2:0:0:0: [sdc] 976773168 512-byte hardware sectors (500108 MB) sd 2:0:0:0: [sdc] Write Protect is off sd 2:0:0:0: [sdc] Mode Sense: 11 00 00 00 sd 2:0:0:0: [sdc] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA sdc: sdc1 sd 2:0:0:0: [sdc] Attached SCSI disk sd 2:0:0:0: Attached scsi generic sg2 type 14 XFS mounting filesystem sda6 Ending clean XFS mount for filesystem: sda6 XFS mounting filesystem sda7 Ending clean XFS mount for filesystem: sda7 XFS mounting filesystem sda8 Ending clean XFS mount for filesystem: sda8 eth0: link up, 100Mbps, full-duplex, lpa 0x45E1 eth1: link up, 10Mbps, half-duplex, lpa 0x0020 PPP generic driver version 2.4.2 ip_tables: (C) 2000-2006 Netfilter Core Team nf_conntrack version 0.5.0 (16384 buckets, 65536 max) usb usb5: configuration #1 chosen from 1 choice hub 5-0:1.0: USB hub found hub 5-0:1.0: 8 ports detected Initializing USB Mass Storage driver... usbcore: registered new interface driver usb-storage USB Mass Storage support registered. ieee1394: Node added: ID:BUS[0-00:1023] GUID[0030e033e013009a] ieee1394: Host added: ID:BUS[0-01:1023] GUID[00110600000044f6] scsi2 : SBP-2 IEEE-1394 ieee1394: sbp2: Logged into SBP-2 device ieee1394: sbp2: Node 0-00:1023: Max speed [S400] - Max payload [2048] scsi 2:0:0:0: Direct-Access-RBC WDC WD50 00AAKB-00H8A0 PQ: 0 ANSI: 4 sd 2:0:0:0: [sdc] 976773168 512-byte hardware sectors (500108 MB) sd 2:0:0:0: [sdc] Write Protect is off sd 2:0:0:0: [sdc] Mode Sense: 11 00 00 00 sd 2:0:0:0: [sdc] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA sd 2:0:0:0: [sdc] 976773168 512-byte hardware sectors (500108 MB) sd 2:0:0:0: [sdc] Write Protect is off sd 2:0:0:0: [sdc] Mode Sense: 11 00 00 00 sd 2:0:0:0: [sdc] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA sdc: sdc1 sd 2:0:0:0: [sdc] Attached SCSI disk sd 2:0:0:0: Attached scsi generic sg2 type 14 XFS mounting filesystem sda6 Ending clean XFS mount for filesystem: sda6 XFS mounting filesystem sda7 Ending clean XFS mount for filesystem: sda7 XFS mounting filesystem sda8 Ending clean XFS mount for filesystem: sda8 eth0: link up, 100Mbps, full-duplex, lpa 0x45E1 eth1: link up, 10Mbps, half-duplex, lpa 0x0020 PPP generic driver version 2.4.2 ip_tables: (C) 2000-2006 Netfilter Core Team nf_conntrack version 0.5.0 (16384 buckets, 65536 max) -- 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/