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From devnull@lkml.org Sun May 19 22:20:03 2024 Delivery-date: Wed, 05 Jul 2006 17:12:52 +0000 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S964916AbWGERMZ (ORCPT ); Wed, 5 Jul 2006 13:12:25 -0400 Received: from web33504.mail.mud.yahoo.com ([68.142.206.153]:23687 "HELO web33504.mail.mud.yahoo.com") by vger.kernel.org with SMTP id S964908AbWGERMY (ORCPT ); Wed, 5 Jul 2006 13:12:24 -0400 Received: (qmail 65592 invoked by uid 60001); 5 Jul 2006 17:12:23 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=Message-ID:Received:Date:From:Subject:To:Cc:MIME-Version:Content-Type:Content-Transfer-Encoding; b=2MqnxCDsyIxfKrgZzmJ0cNRECJ+ic7Pk2dgfV2uMmHMAeujzJMxqbnUX9nhL5w6cEMVDV1S1LcE1M8SGsItdp/OfRt2UD4R6vmK2 Message-Id: <20060705171223.65590.qmail@web33504.mail.mud.yahoo.com> Received: from [69.26.216.147] by web33504.mail.mud.yahoo.com via HTTP; Wed, 05 Jul 2006 10:12:23 PDT Date: Wed, 5 Jul 2006 10:12:23 -0700 (PDT) From: Narendra Hadke Subject: Fwd: Re: sata_mv driver on 88sx6041 ( 2.6.14): PCI IRQ error To: linux-kernel@vger.kernel.org Cc: nhadke@yahoo.com Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="0-780421898-1152119543=:64913" Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org --0-780421898-1152119543=:64913 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit Content-Id: Content-Disposition: inline Hi, The sata_mv I am using is with "three fixes" ie 0.6 on kernel version 2.6.14 (Marvell 6041 part) without the IEN related change. libata & scsi are modified(imported change from later version of kernel) to make this change compile.(With IEN change driver gets truck after identifying the disk) I got rid of the disk errors but the next the error I am getting is related to PCI IRQ. ----------------------------------------- SCSI device sda: drive cache: write back sda:<3>sata_mv: PCI ERROR; PCI IRQ cause=0x00000400 unknown partition table Attached scsi disk sda at scsi2, channel 0, id 0, lun 0 -------------------------------------------------- Please note that the same disk works perfectly fine in PIO mode( formating/read/write etc). So can't suspect disk or connectors. Really apreciate if get any help/ponters on this. Please copy me on the reply, Thanks, Narendra Here is the complet dmesg: ----------------------------------------------------- Octeon# run cfroot reading vmlinux.64 45600467 bytes read argv[2]: coremask=ffff argv[3]: root=/dev/cfa2 ELF file is 64 bit Allocated memory for ELF segment: addr: 0x1100000, size 0x481110 Loading .text @ 0x81100000 (0x35ab70 bytes) Loading __ex_table @ 0x8145ab70 (0x6be0 bytes) Loading .rodata @ 0x81461750 (0x3fd28 bytes) Loading .pci_fixup @ 0x814a1478 (0x600 bytes) Loading __ksymtab @ 0x814a1a78 (0x7c00 bytes) Loading __ksymtab_gpl @ 0x814a9678 (0x1530 bytes) Loading __ksymtab_strings @ 0x814aaba8 (0xb6d0 bytes) Loading __param @ 0x814b6278 (0x780 bytes) Loading .data @ 0x814b8000 (0x66300 bytes) Loading .data.cacheline_aligned @ 0x8151f000 (0x5a00 bytes) Loading .init.text @ 0x81525000 (0x23f30 bytes) Loading .init.data @ 0x81548f30 (0x3118 bytes) Loading .init.setup @ 0x8154c050 (0x3f0 bytes) Loading .initcall.init @ 0x8154c440 (0x380 bytes) Loading .con_initcall.init @ 0x8154c7c0 (0x10 bytes) Loading .init.ramfs @ 0x8154d000 (0x85 bytes) Loading .data.percpu @ 0x8154d100 (0x5418 bytes) Clearing .bss @ 0x81554000 (0x2d110 bytes) ## Loading Linux kernel with entry point: 0x81525000 ... Bootloader: Done loading app on coremask: 0xffff WARNING: Network HW reset not implemented on this board Linux version 2.6.14-Cavium-Octeon (root@naren) (gcc version 3.4.5 Cavium Networks Version: 1.3.1, build 54) #34 SMP Wed Jul 5 10:03:44 CDT 2006 Cavium Networks Version: 1.3.1, build 137 CVMSEG size: 2 cache lines (256 bytes) Setting flash physical map for 8MB flash at 0x1f400000 CPU revision is: 000d0001 Determined physical RAM map: memory: 0000000000c00000 @ 0000000000110000 (usable) memory: 000000000e800000 @ 0000000001590000 (usable) memory: 0000000010c00000 @ 0000000020000000 (usable) Built 1 zonelists Kernel command line: console=ttyS0,115200 bootoctlinux 21000000 coremask=ffff root=/dev/cfa2 Primary instruction cache 32kB, virtually tagged, 4 way, 64 sets, linesize 128 bytes. Primary data cache 8kB, 64-way, 1 sets, linesize 128 bytes. Synthesized TLB refill handler (51 instructions). Synthesized TLB load handler fastpath (49 instructions). Synthesized TLB store handler fastpath (49 instructions). Synthesized TLB modify handler fastpath (48 instructions). PID hash table entries: 4096 (order: 12, 131072 bytes) Using 503.000 MHz high precision timer. Dentry cache hash table entries: 131072 (order: 8, 1048576 bytes) Inode-cache hash table entries: 65536 (order: 7, 524288 bytes) Memory: 498432k/524288k available (3434k kernel code, 25416k reserved, 807k data, 184k init, 0k highmem) Calibrating delay using timer specific routine.. 1006.32 BogoMIPS (lpj=503161) Mount-cache hash table entries: 256 Checking for 'wait' instruction... available. Checking for the multiply/shift bug... no. Checking for the daddi bug... no. Checking for the daddiu bug... no. softlockup thread 0 started up. SMP: Booting CPU01 (CoreId 1)...CPU revision is: 000d0001 softlockup thread 1 started up. SMP: Booting CPU02 (CoreId 2)...CPU revision is: 000d0001 softlockup thread 2 started up. SMP: Booting CPU03 (CoreId 3)...CPU revision is: 000d0001 softlockup thread 3 started up. SMP: Booting CPU04 (CoreId 4)...CPU revision is: 000d0001 softlockup thread 4 started up. SMP: Booting CPU05 (CoreId 5)...CPU revision is: 000d0001 softlockup thread 5 started up. SMP: Booting CPU06 (CoreId 6)...CPU revision is: 000d0001 softlockup thread 6 started up. SMP: Booting CPU07 (CoreId 7)...CPU revision is: 000d0001 softlockup thread 7 started up. SMP: Booting CPU08 (CoreId 8)...CPU revision is: 000d0001 softlockup thread 8 started up. SMP: Booting CPU09 (CoreId 9)...CPU revision is: 000d0001 softlockup thread 9 started up. SMP: Booting CPU10 (CoreId 10)...CPU revision is: 000d0001 softlockup thread 10 started up. SMP: Booting CPU11 (CoreId 11)...CPU revision is: 000d0001 softlockup thread 11 started up. SMP: Booting CPU12 (CoreId 12)...CPU revision is: 000d0001 softlockup thread 12 started up. SMP: Booting CPU13 (CoreId 13)...CPU revision is: 000d0001 softlockup thread 13 started up. SMP: Booting CPU14 (CoreId 14)...CPU revision is: 000d0001 softlockup thread 14 started up. SMP: Booting CPU15 (CoreId 15)...CPU revision is: 000d0001 Brought up 16 CPUs softlockup thread 15 started up. NET: Registered protocol family 16 PCI Status: PCI-X 64-bit SCSI subsystem initialized usbcore: registered new driver usbfs usbcore: registered new driver hub PCI dev 13.0 slot 13 pin 1: 11ab:6041 using irq 47 PCI dev 14.0 slot 14 pin 1: 8086:1079 using irq 46 PCI dev 14.1 slot 14 pin 1: 8086:1079 using irq 46 /proc/octeon_perf: Octeon performace counter interface loaded Total HugeTLB memory allocated, 0 NTFS driver 2.1.24 [Flags: R/W]. SGI XFS with ACLs, security attributes, large block/inode numbers, no debug enabled SGI XFS Quota Management subsystem Initializing Cryptographic API Serial: 8250/16550 driver $Revision: 1.90 $ 4 ports, IRQ sharing enabled io scheduler noop registered io scheduler anticipatory registered io scheduler deadline registered io scheduler cfq registered loop: loaded (max 8 devices) Intel(R) PRO/1000 Network Driver - version 6.0.60-k2 Copyright (c) 1999-2005 Intel Corporation. PCI: Enabling device 0000:00:0e.0 (0000 -> 0003) e1000: eth0: e1000_probe: Intel(R) PRO/1000 Network Connection PCI: Enabling device 0000:00:0e.1 (0000 -> 0003) e1000: eth1: e1000_probe: Intel(R) PRO/1000 Network Connection Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2 ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx sata_mv 0000:00:0d.0: version 0.5 PCI: Enabling device 0000:00:0d.0 (0000 -> 0003) sata_mv 0000:00:0d.0: 32 slots 4 ports SCSI mode IRQ via INTx ata1: SATA max UDMA/133 cmd 0x0 ctl 0x80011B0008022120 bmdma 0x0 irq 47 ata2: SATA max UDMA/133 cmd 0x0 ctl 0x80011B0008024120 bmdma 0x0 irq 47 ata3: SATA max UDMA/133 cmd 0x0 ctl 0x80011B0008026120 bmdma 0x0 irq 47 ata4: SATA max UDMA/133 cmd 0x0 ctl 0x80011B0008028120 bmdma 0x0 irq 47 ata1: no device found (phy stat 00000000) scsi0 : sata_mv ata2: no device found (phy stat 00000000) scsi1 : sata_mv ata3: dev 0 ATA, max UDMA/133, 156301488 sectors: lba48 ata3: dev 0 configured for UDMA/133 scsi2 : sata_mv ata4: no device found (phy stat 00000000) scsi3 : sata_mv Vendor: ATA Model: ST380817AS Rev: 9.01 Type: Direct-Access ANSI SCSI revision: 05 SCSI device sda: 156301488 512-byte hdwr sectors (80026 MB) SCSI device sda: drive cache: write back SCSI device sda: 156301488 512-byte hdwr sectors (80026 MB) SCSI device sda: drive cache: write back sda:<3>sata_mv: PCI ERROR; PCI IRQ cause=0x00000400 unknown partition table Attached scsi disk sda at scsi2, channel 0, id 0, lun 0 physmap flash device: 800000 at 1f400000 phys_mapped_flash: Found 1 x16 devices at 0x0 in 8-bit bank Amd/Fujitsu Extended Query Table at 0x0040 number of CFI chips: 1 cfi_cmdset_0002: Disabling erase-suspend-program due to code brokenness. usbcore: registered new driver usbhid drivers/usb/input/hid-core.c: v2.6:USB HID core driver oprofile: using mips/octeon performance monitoring. NET: Registered protocol family 2 IP route cache hash table entries: 32768 (order: 6, 262144 bytes) TCP established hash table entries: 131072 (order: 9, 2097152 bytes) TCP bind hash table entries: 65536 (order: 8, 1048576 bytes) TCP: Hash tables configured (established 131072 bind 65536) TCP reno registered TCP bic registered NET: Registered protocol family 1 NET: Registered protocol family 17 ttyS0 at MMIO 0x1180000000800 (irq = 0) is a 16550A cf: Octeon bootbus compact flash driver version 1.0 cf: Compact flash found in bootbus region 3 (8 bit). cfa: SAMSUNG CF/ATA Serial SP3C0231060403000018 (2041200 sectors, 512 bytes/sector) cfa: cfa1 cfa2 EXT3-fs: INFO: recovery required on readonly filesystem. EXT3-fs: write access will be enabled during recovery. kjournald starting. Commit interval 5 seconds EXT3-fs: recovery complete. EXT3-fs: mounted filesystem with ordered data mode. VFS: Mounted root (ext3 filesystem) readonly. Freeing unused kernel memory: 184k freed Algorithmics/MIPS FPU Emulator v1.5 INIT: version 2.86 booting Activating swap. EXT3 FS on cfa2, internal journal Cleaning up ifupdown...done. Calculating module dependencies... done. Loading modules... cavium-ethernet cavium_ethernet: module license 'Proprietary' taints kernel. Octeon ethernet driver version: 1.3.1, build 137 Interface 0 is RGMII eth2: Down 1Gbs Half duplex, port 0, queue 0 eth3: Down 1Gbs Half duplex, port 1, queue 1 eth4: Down 1Gbs Half duplex, port 2, queue 2 eth5: Down 1Gbs Half duplex, port 3, queue 3 Interface 1 is SPI4 SPI1: mode Duplex SPI1: Waiting to see TsClk... SPI1: CLK_STAT 0x000000000000005C s4 (1,0) d4 (1,0) SPI1: CLK_STAT 0x000000000000005C s4 (1,0) d4 (1,0) SPI1: CLK_STAT 0x000000000000005C s4 (1,0) d4 (1,0) SPI1: CLK_STAT 0x000000000000005C s4 (1,0) d4 (1,0) SPI1: CLK_STAT 0x000000000000005C s4 (1,0) d4 (1,0) SPI1: CLK_STAT 0x000000000000005C s4 (1,0) d4 (1,0) SPI1: CLK_STAT 0x000000000000005C s4 (1,0) d4 (1,0) SPI1: Timeout All modules loaded. Checking all file systems... fsck 1.37 (21-Mar-2005) Setting kernel variables ... ... done. Mounting local filesystems... /dev/cfa1 on /boot type vfat (rw) Cleaning /tmp /var/run /var/lock. Running 0dns-down to make sure resolv.conf is ok...done. Setting up networking...done. Setting up IP spoofing protection: rp_filter. Configuring network interfaces...Internet Software Consortium DHCP Client 2.0pl5 Copyright 1995, 1996, 1997, 1998, 1999 The Internet Software Consortium. All rights reserved. Please contribute if you find this software useful. For info, please visit http://www.isc.org/dhcp-contrib.html Listening on LPF/eth0/00:90:fb:81:58:e2 Sending on LPF/eth0/00:90:fb:81:58:e2 Sending on Socket/fallback/fallback-net DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 5 DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 5 Running ntpdate to synchronize clockError : Temporary failure in name resolution . Initializing random number generator...done. INIT: Entering runlevel: 2ions... Starting system log daemon: syslogd. Starting kernel log daemon: klogd. Starting MTA: exim4. Starting internet superserver: inetd. Starting OpenBSD Secure Shell server: sshd. Starting NTP server: ntpd. Starting deferred execution scheduler: atd. Starting periodic command scheduler: cron. Debian GNU/Linux 3.1 octeon ttyS0 octeon login: root Last login: Fri Dec 31 16:00:41 1999 on ttyS0 Linux octeon 2.6.14-Cavium-Octeon #34 SMP Wed Jul 5 10:03:44 CDT 2006 mips64 GNU/Linux The programs included with the Debian GNU/Linux system are free software; the exact distribution terms for each program are described in the individual files in /usr/share/doc/*/copyright. Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent permitted by applicable law. octeon:~# octeon:~# octeon:~# octeon:~# octeon:~# octeon:~# fdsik /dev/sdb -bash: fdsik: command not found octeon:~# fdsik /dev/sda -bash: fdsik: command not found octeon:~# fdisk /dev/sda sata_mv: PCI ERROR; PCI IRQ cause=0x00000400 sata_mv: PCI ERROR; PCI IRQ cause=0x00000400 Device contains neither a valid DOS partition table, nor Sun, SGI or OSF disklabelBuilding a new DOS disklabel. Changes will remain in memory only, until you decide to write them. After that, of course, the previous content won't be recoverable. The number of cylinders for this disk is set to 9729. There is nothing wrong with that, but this is larger than 1024, and could in certain setups cause problems with: 1) software that runs at boot time (e.g., old versions of LILO) 2) booting and partitioning software from other OSs (e.g., DOS FDISK, OS/2 FDISK) Warning: invalid flag 0x0000 of partition table 4 will be corrected by w(rite) Command (m for help): p Disk /dev/sda: 80.0 GB, 80026361856 bytes 255 heads, 63 sectors/track, 9729 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System Command (m for help): n Command action e extended p primary partition (1-4) p Partition number (1-4): 1 First cylinder (1-9729, default 1): Using default value 1 Last cylinder or +size or +sizeM or +sizeK (1-9729, default 9729): Using default value 9729 Command (m for help): wsata_mv: PCI ERROR; PCI IRQ cause=0x00000400 The partition table has been altered! Calling ioctl() to re-read partition table. SCSI device sda: 156301488 512-byte hdwr sectors (80026 MB) SCSI device sda: drive cache: write back sda:<3>sata_mv: PCI ERROR; PCI IRQ cause=0x00000400 unknown partition table SCSI device sda: 156301488 512-byte hdwr sectors (80026 MB) SCSI device sda: drive cache: write back sda:<3>sata_mv: PCI ERROR; PCI IRQ cause=0x00000400 unknown partition table Syncing disks. octeon:~# octeon:~# octeon:~# fdisk /dev/sda sata_mv: PCI ERROR; PCI IRQ cause=0x00000400 sata_mv: PCI ERROR; PCI IRQ cause=0x00000400 Device contains neither a valid DOS partition table, nor Sun, SGI or OSF disklabelBuilding a new DOS disklabel. Changes will remain in memory only, until you decide to write them. After that, of course, the previous content won't be recoverable. The number of cylinders for this disk is set to 9729. There is nothing wrong with that, but this is larger than 1024, and could in certain setups cause problems with: 1) software that runs at boot time (e.g., old versions of LILO) 2) booting and partitioning software from other OSs (e.g., DOS FDISK, OS/2 FDISK) Warning: invalid flag 0x0000 of partition table 4 will be corrected by w(rite) Command (m for help): p Disk /dev/sda: 80.0 GB, 80026361856 bytes 255 heads, 63 sectors/track, 9729 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System Note: forwarded message attached. __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com --0-780421898-1152119543=:64913 Content-Type: message/rfc822 Content-Transfer-Encoding: 8bit Received: from [69.26.216.147] by web33514.mail.mud.yahoo.com via HTTP; Mon, 03 Jul 2006 12:40:52 PDT Date: Mon, 3 Jul 2006 12:40:52 -0700 (PDT) From: Narendra Hadke Subject: Fwd: Re: sata_mv driver on 88sx6041 ( 2.6.14):DriveReady SeekComplete To: linux-kernel@vger.kernel.org MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="0-2017456613-1151955652=:821" Content-Transfer-Encoding: 8bit Content-Length: 1736 --0-2017456613-1151955652=:821 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit Content-Id: Content-Disposition: inline Hi, I have backported the 0.25 verion of sata_mv.c to 2.6.14. This the patched version with DMA Boundry fixes. I need a backport as kernel is supported for a specific hardware (Cavium Octeon). This looks somewaht stable on the hardware as compared to 0.5 and 07 which are very unstable and gets struct in middle. I can send those logs if needed. Please note that in PIO mode everything looks OK with this setup. Apreciate your help. Thanks, Narendra Here is the log for 0.25 with DMA bounryfixes. I few erros are follows ------------------------------------------------ CSI device sda: drive cache: write back sda:<4>ata3: status=0x50 { DriveReady SeekComplete } ata3: error=0x01 { AddrMarkNotFound } sata_mv: PCI ERROR; PCI IRQ cause=0x00000400 sda: Current: sense key=0x0 ASC=0x0 ASCQ=0x0 unknown partition table --------------------------------------------- Here is log SCSI messages.... ata_mv 0000:00:0d.0: version 0.25 PCI: Enabling device 0000:00:0d.0 (0000 -> 0003) sata_mv 0000:00:0d.0: 32 slots 4 ports SCSI mode IRQ via INTx ata1: SATA max UDMA/133 cmd 0x0 ctl 0x80011B0008022120 bmdma 0x0 irq 47 ata2: SATA max UDMA/133 cmd 0x0 ctl 0x80011B0008024120 bmdma 0x0 irq 47 ata3: SATA max UDMA/133 cmd 0x0 ctl 0x80011B0008026120 bmdma 0x0 irq 47 ata4: SATA max UDMA/133 cmd 0x0 ctl 0x80011B0008028120 bmdma 0x0 irq 47 ata1: no device found (phy stat 00000000) scsi0 : sata_mv ata2: no device found (phy stat 00000000) scsi1 : sata_mv ata3: dev 0 ATA-7, max UDMA/100, 156301488 sectors: LBA48 ata3: dev 0 configured for UDMA/100 scsi2 : sata_mv ata4: no device found (phy stat 00000000) scsi3 : sata_mv Vendor: ATA Model: HTS721080G9SA00 Rev: MC4O Type: Direct-Access ANSI SCSI revision: 05 SCSI device sda: 156301488 512-byte hdwr sectors (80026 MB) SCSI device sda: drive cache: write back SCSI device sda: 156301488 512-byte hdwr sectors (80026 MB) SCSI device sda: drive cache: write back sda:<4>ata3: status=0x50 { DriveReady SeekComplete } ata3: error=0x01 { AddrMarkNotFound } sata_mv: PCI ERROR; PCI IRQ cause=0x00000400 sda: Current: sense key=0x0 ASC=0x0 ASCQ=0x0 unknown partition table Attached scsi disk sda at scsi2, channel 0, id 0, lun 0 Attached scsi generic sg0 at scsi2, channel 0, id 0, lun 0, type 0 Note: forwarded message attached. __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com --0-2017456613-1151955652=:821 Content-Type: message/rfc822 Content-Transfer-Encoding: 8bit Received: from [69.26.216.147] by web33514.mail.mud.yahoo.com via HTTP; Thu, 29 Jun 2006 18:09:26 PDT Date: Thu, 29 Jun 2006 18:09:26 -0700 (PDT) From: Narendra Hadke Subject: Re: sata_mv driver on 88sx6041 (kernel version 2.6.14) To: linux-kernel@vger.kernel.org Cc: nhadke@yahoo.com In-Reply-To: <4496B47B.7070602@rtr.ca> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit Got it working. Thanks. This works in PIO mode hence performance is horrible. I see the udma mode is set to 0 in driver 2.6.14 sata_mv version 0.12. Is is possible to Back port sata_mv from versin 2.6.17 to 2.6.14 to get a stable drive. Please let me know. Thanks, Narendra --- Mark Lord wrote: > Narendra Hadke wrote: > > Hi, > > I am using sata_mv driver as exists in kernel > 2.6.13, > > reached to a stage where after detecting the disk, > > control gets struck. Any ideas? > > No surprises there. The sata_mv driver is horribly > buggy > in all kernels prior to 2.6.16, and even there it > still has > some serious bugs. The 2.6.17 kernel version is > MUCH better. > > Cheers > __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com --0-2017456613-1151955652=:821-- --0-780421898-1152119543=:64913-- - 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/