On Sun, 30 Mar 2008 23:53:57 +0200 "J.A. Magallón" <jamagallon@xxxxxxx> wrote: > Hi all... > > I have tried to burn some data from the commandline with wodim (since time > ago I just used beasero...), and I have noticed this (media is CD, not DVD): > > Vendor_info : 'HL-DT-ST' > Identification : 'DVDRAM GSA-H10N ' > Revision : 'JL12' > Device seems to be: Generic mmc2 DVD-R/DVD-RW. > 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 > Speed set to 8467 KB/s > wodim: DMA speed too slow (OK for 5x). Cannot write at speed 48x. > Starting to write CD/DVD at speed 48.0 in real TAO mode for single session. > > I just can burn CDs at 5x ?? > But then the program tries to write at 48x. > It the DMA message really true ? > > Accodring to wodim -prcap: > > Maximum read speed: 22161 kB/s (CD 125x, DVD 16x) > Current read speed: 22161 kB/s (CD 125x, DVD 16x) > Maximum write speed: 11080 kB/s (CD 62x, DVD 8x) > Current write speed: 11080 kB/s (CD 62x, DVD 8x) > Rotational control selected: CLV/PCAV > Buffer size in KB: 2048 > Copy management revision supported: 1 > Number of supported write speeds: 3 > Write speed # 0: 11080 kB/s CLV/PCAV (CD 62x, DVD 8x) > Write speed # 1: 5540 kB/s CLV/PCAV (CD 31x, DVD 4x) > Write speed # 2: 3324 kB/s CLV/PCAV (CD 18x, DVD 2x) > > Why the tests in wodim say that DMA to the drive is slow ? > > Kernel is 2.6.24.4. > The drive is controlled by libata+sata_promise: > > sata_promise 0000:03:04.0: version 2.11 > ACPI: PCI Interrupt 0000:03:04.0[A] -> GSI 23 (level, low) -> IRQ 17 > scsi6 : sata_promise > scsi7 : sata_promise > scsi8 : sata_promise > ata5: SATA max UDMA/133 mmio m4096@0xf6029000 port 0xf6029200 irq 17 > ata6: SATA max UDMA/133 mmio m4096@0xf6029000 port 0xf6029280 irq 17 > ata7: PATA max UDMA/133 mmio m4096@0xf6029000 port 0xf6029300 irq 17 > ata5: SATA link down (SStatus 0 SControl 300) > ata6: SATA link down (SStatus 0 SControl 0) > ata7.00: ATA-6: ST3120022A, 3.06, max UDMA/100 > ata7.00: 234441648 sectors, multi 0: LBA48 > ata7.01: ATAPI: HL-DT-ST DVDRAM GSA-H10N, JL12, max UDMA/33 > ata7.00: configured for UDMA/100 > ata7.01: configured for UDMA/33 > scsi 8:0:0:0: Direct-Access ATA ST3120022A 3.06 PQ: 0 ANSI: 5 > sd 8:0:0:0: [sdd] 234441648 512-byte hardware sectors (120034 MB) > sd 8:0:0:0: [sdd] Write Protect is off > sd 8:0:0:0: [sdd] Mode Sense: 00 3a 00 00 > sd 8:0:0:0: [sdd] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA > sd 8:0:0:0: [sdd] 234441648 512-byte hardware sectors (120034 MB) > sd 8:0:0:0: [sdd] Write Protect is off > sd 8:0:0:0: [sdd] Mode Sense: 00 3a 00 00 > sd 8:0:0:0: [sdd] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA > sdd: sdd1 > sd 8:0:0:0: [sdd] Attached SCSI disk > sd 8:0:0:0: Attached scsi generic sg3 type 0 > scsi 8:0:1:0: CD-ROM HL-DT-ST DVDRAM GSA-H10N JL12 PQ: 0 ANSI: 5 > sr0: scsi3-mmc drive: 48x/48x writer dvd-ram cd/rw xa/form2 cdda tray > > UDMA/33 on the burner should be ok for 48x (150x48 = 7.2 MB/s) ? > Or just 16x, as I read elsewhere ? > Please always cc linux-ide on ata-related bug reports. -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
