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Date: Fri, 22 Oct 2004 03:01:30 +0000
From: cwidger <c.widger@comcast.net>
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Subject: Re: acd0 FAILURE READ_BIG MEDIUM
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On Tue, Oct 19, 2004 at 02:19:08AM +0000, cwidger wrote:

>>>> >>uname -r
>>>> >>5.3-BETA7
>>>> >>
>>>> >>acd0 : CDRW <qsi CD-RW/DVD-ROM SBW-241/VH04> at ata1-master UDMA33
>>>> >>acd0: FAILURE - READ_BIG MEDIUM ERROR asc=0x00 ascq=0x00 error=0
>>>> >>acd0: FAILURE - READ_BIG MEDIUM ERROR asc=0x00 ascq=0x00 error=0
>>>> >>acd0: FAILURE - READ_BIG MEDIUM ERROR asc=0x00 ascq=0x00 error=0
>>>> >>acd0: FAILURE - READ_BIG MEDIUM ERROR asc=0x00 ascq=0x00 error=0
>>>> >>acd0: FAILURE - READ_BIG MEDIUM ERROR asc=0x00 ascq=0x00 error=0
>>>> >>
>>>> >>This happens when there's a DVD in acd0. It doesn't happen when acd0's 
>>>> >>empty.
>>>      
>>>
>> 
>> 
>  
>
>>> >What kind of DVD drive is it? Did this just start happening with 5.3, or
>>> >jas it been going on for a while?
>>    
>>
>>> 
>>> I didn't have any problems with 5.2.1, only the 5.3-beta's. It's the built 
>>> in QSI SBW-241 CD-RW/DVD on my Compaq Presario 2100 Laptop. 
>  
>


>uname -r
>	5.3-BETA7

>sysctl hw.ata.atapi_dma
>	hw.ata.atapi_dma: 0

>I have the same laptop and the same problem, I solved using

>	device atapicam
>	device scbus
>	device cd
>	device pass

>and cutting out

>	device atapicd 

>During the bootstrap I have 5/6 sec. of pause, after that 
>all works well and I can use the DVD drive by the device /dev/cd0

>marta

I upgraded to 5.3 rc1 hoping to solve this, no luck, then I put the above in my kernel, but the pause after bootstrap is 3-4 minutes. Also when I did: 

laptop#sysctl hw.ata.atapi_dma 
hw.ata.atapi_dma: 1

After the 3-4 minute pause everything is mormal and I can mount cd0.

Hopefully this will be fixed in the next rc.

thanks for the help