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Message-ID: <45D6E821.5070305@scarlet.be> Date: Sat, 17 Feb 2007 11:33:53 +0000 From: Joel Soete <soete.joel@...rlet.be> To: Lennart Sorensen <lsorense@...lub.uwaterloo.ca> CC: Tejun Heo <htejun@...il.com>, Luming Yu <luming.yu@...il.com>, Alan Cox <alan@...hat.com>, Ioan Ionita <opslynx@...il.com>, Alan <alan@...rguk.ukuu.org.uk>, linux-kernel@...r.kernel.org, jgarzik@...ox.com Subject: Re: 2.6.20-rc6 libata PATA ATAPI CDROM is not working Hello Lennart, Lennart Sorensen wrote: > On Tue, Feb 13, 2007 at 05:35:32PM +0000, Joel Soete wrote: >> A small update: >> your patch also works against 2.6.20 >> >> but seems that open the door to numerous other pb: >> 1/ pb to burn cd: >> # md5sum cd060213.iso >> 6a1248783a21722816b972aa9bae9d5e cd060213.iso >> >> # ll cd060213.iso >> -rwxr-xr-x 1 root root 3213312 Feb 13 2006 cd060213.iso >> >> # dd if=/dev/sr0 bs=1 count=3213312 | md5sum >> dd: reading `/dev/sr0': Input/output error >> 0337e9846d17779945c5c252d4f897f0 - >> 3129344+0 records in >> 3129344+0 records out >> 3129344 bytes (3.1 MB) copied, 36.6963 seconds, 85.3 kB/s >> >> eventhought cdrecord seems to be successfull??? > > Has that ever worked by any method? Yes here was some test made some time ago (not so far): >> On Sun January 8 2006 09:28, you wrote: > cdrecord: No write mode specified. > cdrecord: Asuming -tao mode. > cdrecord: Future versions of cdrecord may have different drive dependent > defaults. > cdrecord: Continuing in 5 seconds... > cdrecord: Warning: Running on Linux-2.6.15-686 > cdrecord: There are unsettled issues with Linux-2.5 and newer. > cdrecord: If you have unexpected problems, please try Linux-2.4 or Solaris. > scsidev: '/dev/hdb' > devname: '/dev/hdb' > scsibus: -2 target: -2 lun: -2 > Warning: Open by 'devname' is unintentional and not supported. > Linux sg driver version: 3.5.27 > cdrecord: Warning: using inofficial version of libscg (ubuntu-0.8ubuntu1 > '@(#)scsitransp.c 1.91 04/06/17 Copyright 1988,1995,2000-2004 J. > Schilling'). > SCSI buffer size: 64512 > cdrecord: Asked for SCSI I/O buffer size 64512 bytes, could only get 20480. > Cdrecord-Clone 2.01.01a03 (i686-pc-linux-gnu) Copyright (C) 1995-2005 > Joerg Schilling > NOTE: this version of cdrecord is an inofficial (modified) release of > cdrecord > and thus may have bugs that are not present in the original version. > Please send bug reports and support requests to > <cdrtools@...kages.debian.org>. > The original author should not be bothered with problems of this > version. > > TOC Type: 1 = CD-ROM > Using libscg version 'ubuntu-0.8ubuntu1'. > atapi: 1 > Device type : Removable CD-ROM > Version : 0 > Response Format: 1 > Vendor_info : 'PHILIPS ' > Identifikation : 'CDD3610 CD-R/RW ' > Revision : '3.09' > Device seems to be: Generic mmc CD-RW. > Using generic SCSI-3/mmc CD-R/CD-RW driver (mmc_cdr). > Driver flags : MMC SWABAUDIO > Supported modes: TAO PACKET RAW/R16 > Drive buf size : 786432 = 768 KB > FIFO size : 4194304 = 4096 KB > Track 01: data 546 MB > Total size: 627 MB (62:11.78) = 279884 sectors > Lout start: 628 MB (62:13/59) = 279884 sectors > Current Secsize: 2048 > ATIP start of lead in: -11637 (97:26/63) > ATIP start of lead out: 337350 (75:00/00) > Disk type: Phase change > Manuf. index: 3 > Manufacturer: CMC Magnetics Corporation > Blocks total: 337350 Blocks current: 337350 Blocks remaining: 57466 > Starting to write CD/DVD at speed 2 in real TAO mode for single session. > Waiting for reader process to fill input buffer ... input buffer ready. > Performing OPC... > Starting new track at sector: 0 > Track 01: 546 of 546 MB written (fifo 100%) [buf 94%] 2.0x. > Track 01: Total bytes read/written: 573198336/573198336 (279882 sectors). > Writing time: 1878.179s > Average write speed 2.0x. > Min drive buffer fill was 94% > Fixating... > Fixating time: 167.622s > cdrecord: fifo had 27989 puts and 27989 gets. > cdrecord: fifo was 0 times empty and 27757 times full, min fill was 98%. > [snip] > # readcd dev=/dev/hdb f=- | md5sum > Read speed: 1059 kB/s (CD 6x, DVD 0x). > Write speed: 353 kB/s (CD 2x, DVD 0x). > Capacity: 279884 Blocks = 559768 kBytes = 546 MBytes = 573 prMB > Sectorsize: 2048 Bytes > Copy from SCSI (0,1,0) disk to file '-' > end: 279884 > readcd: Success. read_g1: scsi sendcmd: no error > CDB: 28 00 00 04 45 48 00 00 04 00 > status: 0x2 (CHECK CONDITION) > Sense Bytes: > Sense Key: 0xFFFFFFFF [], Segment 0 > Sense Code: 0x00 Qual 0x00 (no additional sense information) Fru 0x0 > Sense flags: Blk 0 (not valid) > cmd finished after 0.005s timeout 40s > readcd: Success. Cannot read source disk > readcd: Retrying from sector 279880. > ....~~-~~~+~~~-~~~+~~~-~~~+~ > [snip] > # ll > total 1150848 > [...] > -rw-r----- 1 root root 604082176 Jan 15 12:22 hppa-cvs-20060115.iso > > i.e. Block_Number = 604082176 / 2048 = 294962 > > > # md5sum hppa-cvs-20060115.iso > 1141489a8b914daff5cca790882fe277 hppa-cvs-20060115.iso > > # dd bs=2048 count=294962 if=/dev/hdb | md5sum > 294962+0 records in > 294962+0 records out > 604082176 bytes (604 MB) copied, 676.972 seconds, 892 kB/s > 1141489a8b914daff5cca790882fe277 - > > ;<) more same method here: # dd if=/dev/hdd bs=2048 count=1569 | md5sum dd: reading `/dev/hdd': Input/output error 1528+0 records in 1528+0 records out 3129344 bytes (3.1 MB) copied, 10.1961 seconds, 307 kB/s 0337e9846d17779945c5c252d4f897f0 - is the same wrong results. > I have always had to use readcd > along with passing the correct number of sectors on the CD to get a > proper matching image. dd always seems to end up reading some junk past > the end of the disc. > mmm I always used successfully dd method at my office with scsi cdrom drive (even for bootable disk). >> 2/ (but that should be much more related to scsi api) sdcXX > sdc15 doesn't >> works ;-( >> # sfdisk -l /dev/sdc >> >> Disk /dev/sdc: 1826 cylinders, 255 heads, 63 sectors/track >> Units = cylinders of 8225280 bytes, blocks of 1024 bytes, counting from 0 >> >> Device Boot Start End #cyls #blocks Id System >> /dev/sdc1 * 0+ 195 196- 1574338+ b W95 FAT32 >> /dev/sdc2 196 1825 1630 13092975 5 Extended >> /dev/sdc3 0 - 0 0 0 Empty [snip] >> /dev/sdc23 881+ 1533 653- 5245191 83 Linux >> /dev/sdc24 1795 1825 31 249007+ 83 Linux > > I have to ask: What are all those partitions? > It came from an age (see >> brw-rw---- 1 root disk 8, 32 Dec 1 2001 /dev/sdc) when 15Gb disk was enough to test severall Linux distro ;-) At the same time I was also working with a distro runing on a x486 100Mhz, a few ram and 128Mb of disk ;-) >> # mount /dev/sdc22 /4free >> mount: /dev/sdc22 is not a valid block device >> >> # ll /dev/sdc* >> brw-rw---- 1 root disk 8, 32 Dec 1 2001 /dev/sdc >> brw-rw---- 1 root disk 8, 33 Dec 1 2001 /dev/sdc1 >> brw-rw---- 1 root disk 8, 42 Dec 1 2001 /dev/sdc10 >> brw-rw---- 1 root disk 8, 43 Dec 1 2001 /dev/sdc11 >> brw-rw---- 1 root disk 8, 44 Dec 1 2001 /dev/sdc12 >> brw-rw---- 1 root disk 8, 45 Dec 1 2001 /dev/sdc13 >> brw-rw---- 1 root disk 8, 46 Dec 1 2001 /dev/sdc14 >> brw-rw---- 1 root disk 8, 47 Dec 1 2001 /dev/sdc15 >> brw-r--r-- 1 root root 8, 48 Feb 13 16:26 /dev/sdc16 >> brw-r--r-- 1 root root 8, 49 Feb 13 16:26 /dev/sdc17 >> brw-r--r-- 1 root root 8, 50 Feb 13 16:26 /dev/sdc18 >> brw-r--r-- 1 root root 8, 51 Feb 13 16:27 /dev/sdc19 >> brw-rw---- 1 root disk 8, 34 Dec 1 2001 /dev/sdc2 >> brw-r--r-- 1 root root 8, 52 Feb 13 16:27 /dev/sdc20 >> brw-r--r-- 1 root root 8, 53 Feb 13 16:27 /dev/sdc21 >> brw-r--r-- 1 root root 8, 54 Feb 13 16:27 /dev/sdc22 >> brw-r--r-- 1 root root 8, 55 Feb 13 16:27 /dev/sdc23 >> brw-r--r-- 1 root root 8, 56 Feb 13 16:27 /dev/sdc24 >> brw-rw---- 1 root disk 8, 35 Dec 1 2001 /dev/sdc3 >> brw-rw---- 1 root disk 8, 36 Dec 1 2001 /dev/sdc4 >> brw-rw---- 1 root disk 8, 37 Dec 1 2001 /dev/sdc5 >> brw-rw---- 1 root disk 8, 38 Dec 1 2001 /dev/sdc6 >> brw-rw---- 1 root disk 8, 39 Dec 1 2001 /dev/sdc7 >> brw-rw---- 1 root disk 8, 40 Dec 1 2001 /dev/sdc8 >> brw-rw---- 1 root disk 8, 41 Dec 1 2001 /dev/sdc9 > > Hmm, using udev? Any chance udev incorrectly doesn't check for going > past the end of the block devices allowed (each scsi device has 16 > minors assigned, which gives you 15 partitions per device). Last device > for sdc is 8,47. 8,48 (your sdc16) is actually sdd. > Ah ok I wasn't aware. Thanks for help, Joel - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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