Question regarding PDC202xx problems

Question regarding PDC202xx problems

[Guido Diepen]

Hi,

till a couple of days my debian machine was running my own compiled
2.6.10-nitro2 kernel. When I tried to upgrade the machine everything
booted fine, except for the fact that my extra PCI IDE controller
(PDC20268 chipset, using the PDC202XX_new driver in the kernel) gave
problems. I got all kinds of DMA errors and IDE channel resets after which
my machine completely locked up.

Small snippet of the errors I got:
hdg: dma_intr: status=0x51 { DriveRead SeekComplete Error}
hdg: dma_intr: error=0x10 {SectorIdNotFound }, LBAsect= ... (rest of this
I could not see anymore on the foto I took of the screen)
ide: failed opcode was: unknown

This error repeats a couple of times, then I get the message:
hdg: DMA disabled
PDC202XX: Secondary channel reset.
ide3: reset: success
hdg: task_in_intr: status=0x59 { DriveReady SeekComplete ...
hdg: task_in_intr: error=0x10 {SectorIdNotFound }, LBAsect ...


With any new kernel above at least 2.6.10 (I am not sure about 2.6.11, but
definitively sure about 2.6.12) I tried, I always got these messages. The
reason I am sending this to this mailing list is that as soon as I removed
udev from my system completely I was able to boot up with the new kernel
without a hitch. I found somewhere on the Internet a message from somebody
that deinstalled udev also after running into similar problems with the
PDC202XX to get the system booting up again.

Without udev I am running the new 2.6.17.8 kernel without any problems at
the moment. As soon as I install udev again, I get the same messages as
above.

The version of udev I was using was the standard version that is available
in Debian Unstable, namely: 0.093-1.


Does anybody know what exactly is causing this error and how to solve it
so that I can make use of udev again?

Regards,

Guido Diepen

-- 
Programming today is a race between software engineers striving to
build bigger and better idiot-proof programs, and the Universe trying
to produce bigger and better idiots. So far, the Universe is winning




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Re: Question regarding PDC202xx problems

[Marco d'Itri]

On Aug 18, Guido Diepen <guido@jcwodan.nl> wrote:

> till a couple of days my debian machine was running my own compiled
> 2.6.10-nitro2 kernel. When I tried to upgrade the machine everything
> booted fine, except for the fact that my extra PCI IDE controller
> (PDC20268 chipset, using the PDC202XX_new driver in the kernel) gave
> problems. I got all kinds of DMA errors and IDE channel resets after which
> my machine completely locked up.
This may be triggered by one of the *_id programs probing the device.

-- 
ciao,
Marco

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Re: Question regarding PDC202xx problems

[Guido Diepen]

Marco d'Itri wrote:
> On Aug 18, Guido Diepen <guido@jcwodan.nl> wrote:
>
>> till a couple of days my debian machine was running my own compiled
>> 2.6.10-nitro2 kernel. When I tried to upgrade the machine everything
>> booted fine, except for the fact that my extra PCI IDE controller
>> (PDC20268 chipset, using the PDC202XX_new driver in the kernel) gave
>> problems. I got all kinds of DMA errors and IDE channel resets after
>> which
>> my machine completely locked up.
> This may be triggered by one of the *_id programs probing the device.


I just downloaded the source of udev and looked at the source of the *_id
programs briefly. I haven't looked at enough I guess, but the *_id
programs do not seem to do very weird things, except for getting some
basic information with ioctls.

Do you have any idea of which specific _id program might cause some problems?

Guido


>
> --
> ciao,
> Marco
>
>



-- 
Programming today is a race between software engineers striving to
build bigger and better idiot-proof programs, and the Universe trying
to produce bigger and better idiots. So far, the Universe is winning




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