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SubjectRe: 2.6.18-rc1-mm1
On 10/07/2006 12:56 a.m., Alan Cox wrote:
> Ar Sul, 2006-07-09 am 05:22 -0700, ysgrifennodd Andrew Morton:
>>> ata5: PATA max UDMA/133 cmd 0x1F0 ctl 0x3F6 bmdma 0x30B0 irq 14
>>> scsi4 : ata_piix
>>> ata5.00: ATAPI, max UDMA/66
>>> ata5.00: configured for UDMA/66
> More ATAPI devices getting uppity about mode setting.
>> John stuff. I suspect it's natural and normal, if the IDE error handling
>> did something rude with interrupt holdoff.
> The new libata should be more polite than that, although since the ATA
> drive can stall the CPU indefinitely you lose anyway 8(

It may not be related to ATA. I just reloaded into 2.6.17-mm6 to get the info
for Alan and saw it when booting up on that too:

PCI: Setting latency timer of device 0000:00:1d.7 to 64
ehci_hcd 0000:00:1d.7: EHCI Host Controller
ehci_hcd 0000:00:1d.7: new USB bus registered, assigned bus number 1
Losing some ticks... checking if CPU frequency changed.
ehci_hcd 0000:00:1d.7: debug port 1
PCI: cache line size of 128 is not supported by device 0000:00:1d.7

Note it was in a different place in here than in -rc1-mm1 (slightly later in the

I'm fairly sure it's not new to this release.

>>> Jul 2 12:03:28 tornado kernel: hda: ATAPI 40X DVD-ROM DVD-R CD-R/RW drive,
>>> 2000kB Cache, UDMA(66)
> Can you send me the full hdparm identify stuff for this ?

sh-3.1# hdparm -I /dev/hda


ATAPI CD-ROM, with removable media
Model Number: PIONEER DVD-RW DVR-111D
Serial Number: FADC005671WL
Firmware Revision: 1.23
Likely used CD-ROM ATAPI-1
DRQ response: 50us.
Packet size: 12 bytes
LBA, IORDY(can be disabled)
Buffer size: 64.0kB
DMA: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 *udma4
Cycle time: min=120ns recommended=120ns
PIO: pio0 pio1 pio2 pio3 pio4
Cycle time: no flow control=240ns IORDY flow control=120ns
Enabled Supported:
* Power Management feature set
* PACKET command feature set
* DEVICE_RESET command
HW reset results:
CBLID- above Vih
Device num = 0 determined by the jumper
sh-3.1# hdparm -i /dev/hda


Model=PIONEER DVD-RW DVR-111D, FwRev=1.23, SerialNo=
Config={ Fixed Removeable DTR<=5Mbs DTR>10Mbs nonMagnetic }
RawCHS=0/0/0, TrkSize=0, SectSize=0, ECCbytes=0
BuffType=13395, BuffSize=64kB, MaxMultSect=0
(maybe): CurCHS=0/0/0, CurSects=0, LBA=yes, LBAsects=0
IORDY=on/off, tPIO={min:240,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio1 pio2 pio3 pio4
DMA modes: mdma0 mdma1 mdma2
UDMA modes: udma0 udma1 udma2 udma3 *udma4
Drive conforms to: Unspecified: ATA/ATAPI-2 ATA/ATAPI-3 ATA/ATAPI-4 ATA/ATAPI-5

* signifies the current active mode


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