Re: Laptop mode causing writes to wrong sectors?

[Bill Davidsen]

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@xxxxxxx>
 CTO TMR Associates, Inc
 Doing interesting things with small computers since 1979

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