Re: New ac patch???

From: Miquel van Smoorenburg (miquels@cistron-office.nl)
Date: Wed Nov 21 2001 - 06:57:11 EST


In article <E166VIr-0004ik-00@the-village.bc.nu>,
Alan Cox <alan@lxorguk.ukuu.org.uk> wrote:
>> > Not exaclty. It is a 48Gig drive in a dell inspiron 8000. I think it is
>> > IBM but the logs do not show a brandname. I can try open up the case tonight
>> > if you want to know for sure?
>>
>> It's an IBM IC25T048ATDA05-0 to be precise.
>
>Thanks. It seems IBM laptop drives are the ones that specifically need this
>fix. That ties in with the windows 98 reports/microsoft fixes.

I have Debian bugreports saying that it's not only IBM laptop drives.
It happens on Seagate, Samsung, Maxtor as well.
See http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=110804&repeatmerged=yes

Note that the final fix (putting the drives in standby mode) is not
discussed in this bug report - I experimented first with turning off
the write cache in the shutdown scripts which kind of worked but
feels not quite right - you might need just enough write activity
after that to completely flush the on-disk cache.

Mike.

-- 
"Only two things are infinite, the universe and human stupidity,
 and I'm not sure about the former" -- Albert Einstein.

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