> Hi Joerg, > > Thanks for replying. I'm still confused about a few things: > > On Mon, 2006-02-20 at 16:24 +0100, Joerg Schilling wrote: > > What problems do you have here? > > Sorry, I missed the fact that that write did actually succeed. I must be > getting log-blind. > > > As the cdrecord error message correctly states: > > > > YOu got a buffer underrun. > > > > So either you don't have DMA or there is another unfriendly application > > that disturbes writing. > > It always seems to fail around 250-400 MB, even with burn-free turned > on, min drive buffer fill was 95%, min fifo fill was 85% (tried 5 times > in dummy mode, with different media). The fifo was 100% full and buffer > 99% full at the time of the underrun. I don't understand how it's even > possible to have a buffer underrun under these conditions. > > The fact that it always fails in the same place would seem to imply that > it's not some process on the system interfering with the writing, unless > that process caused by the writing itself. > > I'm using ide-scsi. The CD-ROM shares a bus with one of the two hard > disks in the RAID array. All drives have DMA enabled. > > > [EMAIL PROTECTED] ubuntu]$ sudo cdrecord -v speed=8 driveropts=burnfree -tao > dev=2,0,0 -dummy ubuntu-5.10-live-powerpc.iso > Password: > Cdrecord-Clone 2.01.01a06 (i686-pc-linux-gnu) Copyright (C) 1995-2006 J > \uffffrg Schilling > cdrecord: Warning: Running on Linux-2.6.9-ck2-aidworld > cdrecord: There are unsettled issues with Linux-2.5 and newer. > cdrecord: If you have unexpected problems, please try Linux-2.4 or > Solaris. > cdrecord: Warning: Linux-2.6.8 introduced incompatible interface > changes. > cdrecord: Warning: SCSI transport does no longer work for suid root > programs. > cdrecord: Warning: if cdrecord fails, try to run it from a root account. > TOC Type: 1 = CD-ROM > scsidev: '2,0,0' > scsibus: 2 target: 0 lun: 0 > Linux sg driver version: 3.5.31 > Using libscg version 'schily-0.8'. > Driveropts: 'burnfree' > SCSI buffer size: 64512 > atapi: 1 > Device type : Removable CD-ROM > Version : 2 > Response Format: 2 > Capabilities : > Vendor_info : 'SAMSUNG ' > Identifikation : 'CDRW/DVD SM-352F' > Revision : 'T902' > Device seems to be: Generic mmc2 DVD-ROM. > Current: 0x0009 > Profile: 0x000A > Profile: 0x0009 (current) > Profile: 0x0008 > Profile: 0x0002 > Profile: 0x0010 > Using generic SCSI-3/mmc CD-R/CD-RW driver (mmc_cdr). > Driver flags : MMC-3 SWABAUDIO BURNFREE > Supported modes: TAO PACKET SAO SAO/R96P SAO/R96R RAW/R16 RAW/R96P > RAW/R96R > Drive buf size : 1959936 = 1914 KB > FIFO size : 4194304 = 4096 KB > Track 01: data 627 MB > Total size: 720 MB (71:20.69) = 321052 sectors > Lout start: 720 MB (71:22/52) = 321052 sectors > Current Secsize: 2048 > ATIP info from disk: > Indicated writing power: 5 > Is not unrestricted > Is not erasable > Disk sub type: Medium Type B, low Beta category (B-) (4) > ATIP start of lead in: -11607 (97:27/18) > ATIP start of lead out: 359849 (79:59/74) > Disk type: Short strategy type (Phthalocyanine or similar) > Manuf. index: 18 > Manufacturer: Plasmon Data systems Ltd. > Blocks total: 359849 Blocks current: 359849 Blocks remaining: 38797 > Starting to write CD/DVD at speed 8 in dummy TAO mode for single > session. > Last chance to quit, starting dummy write 0 seconds. Operation > starts. > Waiting for reader process to fill input buffer ... input buffer ready. > BURN-Free is ON. > Starting new track at sector: 0 > Track 01: 378 of 627 MB written (fifo 100%) [buf 99%] > 8.2x.cdrecord: Input/output error. write_g1: scsi sendcmd: no error > CDB: 2A 00 00 02 F5 AF 00 00 1F 00 > status: 0x2 (CHECK CONDITION) > Sense Bytes: F0 00 05 00 00 00 00 0A 00 00 00 00 21 02 00 00 > Sense Key: 0x5 Illegal Request, Segment 0 > Sense Code: 0x21 Qual 0x02 (invalid address for write) Fru 0x0 > Sense flags: Blk 0 (valid) > cmd finished after 1.551s timeout 40s > > write track data: error after 397244416 bytes > cdrecord: The current problem looks like a buffer underrun. > cdrecord: It looks like 'driveropts=burnfree' does not work for this > drive. > cdrecord: Please report. > cdrecord: Make sure that you are root, enable DMA and check your HW/OS > set up. > Writing time: 339.978s > Average write speed 12.6x. > Min drive buffer fill was 95% > Fixating... > WARNING: Some drives don't like fixation in dummy mode. > Fixating time: 0.001s > BURN-Free was never needed. > cdrecord: fifo had 6321 puts and 6258 gets. > cdrecord: fifo was 0 times empty and 6189 times full, min fill was 85%. > > > Another log, different media, same problem: > > > [EMAIL PROTECTED] ubuntu]$ sudo cdrecord -v speed=8 driveropts=burnfree -tao > dev=2,0,0 -dummy ubuntu-5.10-live-powerpc.iso > Password: > Cdrecord-Clone 2.01.01a06 (i686-pc-linux-gnu) Copyright (C) 1995-2006 J > \uffffrg Schilling > cdrecord: Warning: Running on Linux-2.6.9-ck2-aidworld > cdrecord: There are unsettled issues with Linux-2.5 and newer. > cdrecord: If you have unexpected problems, please try Linux-2.4 or > Solaris. > cdrecord: Warning: Linux-2.6.8 introduced incompatible interface > changes. > cdrecord: Warning: SCSI transport does no longer work for suid root > programs. > cdrecord: Warning: if cdrecord fails, try to run it from a root account. > TOC Type: 1 = CD-ROM > scsidev: '2,0,0' > scsibus: 2 target: 0 lun: 0 > Linux sg driver version: 3.5.31 > Using libscg version 'schily-0.8'. > Driveropts: 'burnfree' > SCSI buffer size: 64512 > atapi: 1 > Device type : Removable CD-ROM > Version : 2 > Response Format: 2 > Capabilities : > Vendor_info : 'SAMSUNG ' > Identifikation : 'CDRW/DVD SM-352F' > Revision : 'T902' > Device seems to be: Generic mmc2 DVD-ROM. > Current: 0x0009 > Profile: 0x000A > Profile: 0x0009 (current) > Profile: 0x0008 > Profile: 0x0002 > Profile: 0x0010 > Using generic SCSI-3/mmc CD-R/CD-RW driver (mmc_cdr). > Driver flags : MMC-3 SWABAUDIO BURNFREE > Supported modes: TAO PACKET SAO SAO/R96P SAO/R96R RAW/R16 RAW/R96P > RAW/R96R > Drive buf size : 1959936 = 1914 KB > FIFO size : 4194304 = 4096 KB > Track 01: data 627 MB > Total size: 720 MB (71:20.69) = 321052 sectors > Lout start: 720 MB (71:22/52) = 321052 sectors > Current Secsize: 2048 > ATIP info from disk: > Indicated writing power: 5 > Is not unrestricted > Is not erasable > Disk sub type: Medium Type A, high Beta category (A+) (3) > ATIP start of lead in: -11634 (97:26/66) > ATIP start of lead out: 359846 (79:59/71) > Disk type: Short strategy type (Phthalocyanine or similar) > Manuf. index: 3 > Manufacturer: CMC Magnetics Corporation > Blocks total: 359846 Blocks current: 359846 Blocks remaining: 38794 > Starting to write CD/DVD at speed 8 in dummy TAO mode for single > session. > Last chance to quit, starting dummy write 0 seconds. Operation > starts. > Waiting for reader process to fill input buffer ... input buffer ready. > BURN-Free is ON. > Starting new track at sector: 0 > Track 01: 264 of 627 MB written (fifo 100%) [buf 100%] > 8.1x.cdrecord: Input/output error. write_g1: scsi sendcmd: no error > CDB: 2A 00 00 02 11 E8 00 00 1F 00 > status: 0x2 (CHECK CONDITION) > Sense Bytes: F0 00 05 00 00 00 00 0A 00 00 00 00 21 02 00 00 > Sense Key: 0x5 Illegal Request, Segment 0 > Sense Code: 0x21 Qual 0x02 (invalid address for write) Fru 0x0 > Sense flags: Blk 0 (valid) > cmd finished after 1.323s timeout 40s > > write track data: error after 277823488 bytes > cdrecord: The current problem looks like a buffer underrun. > cdrecord: It looks like 'driveropts=burnfree' does not work for this > drive. > cdrecord: Please report. > cdrecord: Make sure that you are root, enable DMA and check your HW/OS > set up. > Writing time: 241.176s > Average write speed 17.8x. > Min drive buffer fill was 95% > Fixating... > WARNING: Some drives don't like fixation in dummy mode. > Fixating time: 0.001s > BURN-Free was never needed. > cdrecord: fifo had 4440 puts and 4377 gets. > cdrecord: fifo was 0 times empty and 4333 times full, min fill was 85%. > > > Thanks in advance for your help. > > Cheers, Chris. > -- > (aidworld) chris wilson | chief engineer ([EMAIL PROTECTED])
The same problem with a LG burner in a USB housing (computer USB 1.0) You could solve the problem with cdrecord unloading the module sr_mod, but you could not use k3b and probably other GUIs neither. A better solution is not touching sr_mod and call cdrecord with dev=/dev/scd0 or similar, instead of dev=1,0,0. In k3b you can go to Options > user parameters and set dev=/dev/scd0 (or dev=/dev/scd1 as your burner be) as an option to cdrecord. I don't know about other GUIs. Sorry if this were answered elsewhere. I am not suscribed to the list, so, please CC any answer to me. Ignacio -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
