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| Nero Linux Discuss here everything related to Nero Linux. e.g. suggest new features, receive help and share tips on Nero Linux. |
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26-04-2005
| #1 (permalink) |
| New on Forum Join Date: Apr 2005
Posts: 12
| Buffer Underrun? I've been trying to get nerolinux working with a Sony DRU-720A. It starts OK, but then the buffer starts routinely running down to 0% then refilling to 100%. When the burn is completed, nerolinux reports no errors, but the disk is unmountable. Here's some relevant output from my shell: Code: [root@flux ~]# hdparm /dev/hdg /dev/hdg: multcount = 16 (on) IO_support = 1 (32-bit) unmaskirq = 0 (off) using_dma = 1 (on) keepsettings = 0 (off) readonly = 0 (off) readahead = 8 (on) geometry = 238216/16/63, sectors = 240121728, start = 0 [root@flux ~]# hdparm -t /dev/hdg /dev/hdg: Timing buffered disk reads: 170 MB in 3.00 seconds = 56.67 MB/sec hdc: attached ide-scsi driver. hdd: attached ide-scsi driver. scsi0 : SCSI host adapter emulation for IDE ATAPI devices Vendor: TDK Model: CDRW161040X Rev: 5.30 Type: CD-ROM ANSI SCSI revision: 02 Vendor: SONY Model: DVD RW DRU-720A Rev: JY01 Type: CD-ROM ANSI SCSI revision: 02 Attached scsi CD-ROM sr0 at scsi0, channel 0, id 0, lun 0 Attached scsi CD-ROM sr1 at scsi0, channel 0, id 1, lun 0 sr0: scsi3-mmc drive: 40x/40x writer cd/rw xa/form2 cdda tray Uniform CD-ROM driver Revision: 3.12 sr1: scsi3-mmc drive: 48x/48x writer cd/rw xa/form2 cdda tray ( from /var/log/messages ) Apr 25 14:12:38 flux kernel: SCSI cdrom error : host 0 channel 0 id 1 lun 0 return code = 28000000 Apr 25 14:12:38 flux kernel: Current sd0b:01: sns = 70 4 Apr 25 14:12:38 flux kernel: ASC= 8 ASCQ= 3 Apr 25 14:12:38 flux kernel: Raw sense data:0x70 0x00 0x04 0x00 0x00 0x00 0x00 0x0a 0x00 0x00 0x00 0x00 0x08 0x03 0x00 0x00 0x00 0x00 Apr 25 14:12:38 flux kernel: I/O error: dev 0b:01, sector 64 Apr 25 14:12:38 flux kernel: isofs_read_super: bread failed, dev=0b:01, iso_blknum=16, block=16 Apr 25 14:12:46 flux kernel: SCSI cdrom error : host 0 channel 0 id 1 lun 0 return code = 28000000 Apr 25 14:12:46 flux kernel: Current sd0b:01: sns = 70 4 Apr 25 14:12:46 flux kernel: ASC= 8 ASCQ= 3 Apr 25 14:12:46 flux kernel: Raw sense data:0x70 0x00 0x04 0x00 0x00 0x00 0x00 0x0a 0x00 0x00 0x00 0x00 0x08 0x03 0x00 0x00 0x00 0x00 Apr 25 14:12:46 flux kernel: I/O error: dev 0b:01, sector 64 Apr 25 14:12:46 flux kernel: isofs_read_super: bread failed, dev=0b:01, iso_blknum=16, block=16 |
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26-04-2005
| #2 (permalink) |
| NeroLinux Moderator Join Date: Jun 2004
Posts: 430
| Re: Buffer Underrun? Is your device an IDE internal one or is it the USB external version ? As far as I see, your device is connected via the ide-scsi driver, so you must be using a 2.4 kernel. Maybe try this: Look at the DMA status for your device. To do this, identify the _real_ IDE device name, and type: hdparm -d /dev/hdXX (where hdXX is your device name) If DMA is not enable, then enable it. It is a nice option to also pass -X66 to enable UDMA, that is not set by default with 2.4 kernels. |
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