[PlanetCCRMA] CD-ROM writing trouble with rh9 caps kernel?

[Chris Miles (PlanetCCRMA)]

Fernando Pablo Lopez-Lezcano wrote:

>On Mon, 2004-11-08 at 02:30, Chris Miles (PlanetCCRMA) wrote:
>  
>
>>Fernando Pablo Lopez-Lezcano wrote:
>>    
>>
>>>On Fri, 2004-11-05 at 10:56, Chris Miles (PlanetCCRMA) wrote:
>>>      
>>>
>>>>I've just had major trouble writing some CDs under RedHat 9.
>>>>
>>>>I've been running the caps kernel since I found the hangs with the ll 
>>>>kernel too disruptive - I'd get no keyboard accepted. I liked the disk 
>>>>speed though!
>>>>
>>>>I've found that I could write one CD, but a second would fail with timeouts.
>>>>
>>>>Yesterday not even the first CD would write, timing out. Since this was 
>>>>for work I decided to try the stock red hat kernel (2.4.20-37.9).
>>>>
>>>>I still had to power down, turn off at the mains and wait 10 minutes 
>>>>before it would work and then I was back to normal (apart from the 
>>>>ruined CDs). Phew :-)
>>>>
>>>>Any ideas what to look for? I really need reliable CD writing but I want 
>>>>my alsa back.
>>>>I use an ATA CD with hdc=ide-scsi and xcdroast, etc.
>>>>        
>>>>
>>>If the ll kernel has problems with your hardware you could try to
>>>install the redhat based Planet CCRMA kernel and matching alsa drivers.
>>>That should work as well as the original redhat kernel (it is not as
>>>new, of course). It is installed with:
>>>
>>> apt-get install planetccrma-core-redhat
>>>(for uniprocessor machines)
>>>      
>>>
>>I've tried both the "caps" kernel and the "ll" kernels.
>>
>>I have to give up on the "ll" kernel as the keyboard died regularly. I 
>>liked its speed though.
>>
>>I'm puzzled by the interaction with CD writing. It gets expensive in 
>>both CDs and the time to cycle the hardware after a problem. At the 
>>moment I'm not clear what I should be monitoring.
>>
>>Perhaps the capability patches upset the ide-scsi timing.
>>    
>>
>
>I would almost say impossible. The capabilities patch is very small and
>just enables the ability of processes to pass on capabilities to other
>processes. It should not affect things like timing or device drivers. 
>
>  
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>>I've reverted to the current redhat kernel for the moment. I've got ALSA 
>>back by making rpms from the alsa-driver-1.0.4 source. Of course I need 
>>the capabilities patches for JACK don't I?
>>
>>I may try rolling my own kernel to see if I can track this CD problem 
>>down. I believe the kernel patches you use are on the Planet site?
>>    
>>
>
>Yes, they are in the source rpms, which can be found in the "System
>Stuff" section. Which version of the kernel are you running
>successfully, I should obviously upgrade...?
>
>-- Fernando
>
>
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The current "stock" kernel is

2.4.20-37.9

"I would almost say impossible." It looks as if I should have another go at the Planet kernels then. Perhaps the patches interact in some strange way with the nvidia screen drivers; nvidia have a new version out (6629) with some fixes for the 2.6 kernels so maybe I can get both an "ll" kernel and reliable CD writing!!

Chris