Re: Laptop mode causing writes to wrong sectors?

[Bill Davidsen <davidsen@tmr.com>]

Pavel Machek wrote:

>Hi!
>
>  
>
>>>Can you try some filesystem test while forcing disk spindowns via
>>>hdparm?
>>>
>>>It may be bug in laptop mode, or a bug in ide (or something
>>>related)... trying spindowns without laptopmode would be helpful.
>>>
>>>      
>>>
>>I don't know if it would be helpful, but I run several servers with 
>>multiple drives, usually 4-5, some of which are in RAID and some aren't, 
>>and they all spin down and restart without problems many times a day. 
>>The kernel is 2.6.14.? with one patch to get my unsupported VIA IDE working.
>>
>>My laptop also has a spindown (five min from memory) and I have yet to 
>>have a problem with it. Don't know if any of that is "spindowns without 
>>laptopmode" in a useful sense.
>>    
>>
>
>Unless you can also reproduce the failure... no, probably does not help
>much.
>  
>
No, that was really the point, even on multiple systems using spindown, 
I have no failures. I see four possible causes:
  1 - spindown
  2 - laptop mode
  3 - 1 + 2
  4 - bad hardware, kernel not at fault

Since I have a lot of (1) data I thought eliminating that as a cause by 
itself might be helpful.

-- 
bill davidsen <davidsen@tmr.com>
  CTO TMR Associates, Inc
  Doing interesting things with small computers since 1979