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SubjectRe: DMA problem
Andreas Unterkircher a écrit :
> Is it possible that your ide-cable can't handle the higher dma speeds
> and makes errors? is it udma compatible? have you looked for a
> firmware update for the burner @ www.plextor.com?


Firmware is up to date ....
I tried it with an other cable , UDMA 100 certified,
I tried all kind of things, putting the drive as master
but nothing has worked till yet.

Thanks for your answer

also zu Deutsch - sprech' ich viel besser als Englisch.


mfG

Claude
>
> andreas
>
>
> ----- Original Message -----
> From: "claude parisot" <Claude.PARISOT@wanadoo.fr>
> To: <linux-kernel@vger.kernel.org>
> Cc: <Claude.PARISOT@wanadoo.fr>
> Sent: Friday, January 16, 2004 8:24 PM
> Subject: DMA problem
>
>
>
>> Hello !
>>
>>Sorry to post a seconfd message on the list, I am only trying
>>to get an answern for this - it seems so - DMA-problem ??
>>
>>
>>I have some
>>problems with a brand new Plextor-drive, PX-W5224TA/T3B, I cannot
>>mount any CD or burn a CDR or CD-RW, except if I disable DMA with
>>following command :# hdparm -d0 /dev/hdd , a little bit annoying,
>>isn't it ?
>>
>>If I insert a cdrom in the drive the led doesn't go out, it flashes
>>as usual but it stays green.
>>
>>It seems to be a DMA-problem or a kernel-bug ???
>>Its only a supposition, I am a Linux-newbie, and I am looking
>>for an explanation and a solution ....
>>
>>By mounting a cdrom I get following error messages :
>>
>>Jan 11 20:46:00 ishwara kernel: scsi : aborting command due to timeout
>>: pid 102, scsi0, channel 0, id 1, lun 0 0x28 00 00 00 00 10 00 00 01 00
>>Jan 11 20:46:00 ishwara kernel: hdd: error waiting for DMA
>>Jan 11 20:46:00 ishwara kernel: hdd: dma timeout retry: status=0x7f {
>>DriveReady DeviceFault SeekComplete DataRequest CorrectedError Index
>>Error } Jan 11 20:46:00 ishwara kernel: hdd: dma timeout retry:
>>error=0x7f Jan 11 20:46:00 ishwara kernel: hdd: DMA disabled
>>Jan 11 20:46:00 ishwara kernel: hdd: ATAPI reset complete
>>Jan 11 20:46:00 ishwara kernel: hdd: irq timeout: status=0x80 { Busy }
>>Jan 11 20:46:00 ishwara kernel: hdd: ATAPI reset complete
>>Jan 11 20:46:00 ishwara kernel: hdd: irq timeout: status=0x80 { Busy }
>>Jan 11 20:46:00 ishwara kernel: hdd: ATAPI reset complete
>>Jan 11 20:46:07 ishwara kernel: hdd: irq timeout: status=0x80 { Busy }
>>Jan 11 20:46:07 ishwara kernel: scsi0 channel 0 : resetting for second
>>half of retries. Jan 11 20:46:07 ishwara kernel: SCSI bus is being reset
>>for host 0 channel 0. Jan 11 20:46:07 ishwara kernel: hdd: status
>>timeout: status=0x80 { Busy } Jan 11 20:46:07 ishwara kernel: hdd: drive
>>not ready for command Jan 11 20:46:07 ishwara kernel: hdd: ATAPI reset
>>complete Jan 11 20:46:32 ishwara kernel: scsi : aborting command due to
>>timeout : pid 103, scsi0, channel 0, id 1, lun 0 0x28 00 00 00 00 10 00
>>rive not ready for command
>>
>>And then I have a freeze or at least a blocking of the sysem.
>>I have to reboot.
>>
>>Could someone give me an explanation of what is happening and a way to
>>solve the problem .... is this a kernel-bug ? Or an incompatibility
>>between the motherboard and the drive ??
>>
>>If you choose to help me, please don't be to esoteric, as I already
>>said, I am a newbie.
>>
>>Please, could you Cc all answers to the adress :
>>
>>Claude.PARISOT@wanadoo.fr
>>
>>My apologizes for my english ....
>>
>>
>>Claude
>>
>>System : Pentium 2,8C
>>Asus P4P800 DeLuxe
>>Intel I865PE
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>-
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>>
>
>
>


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