Re: Weird hard disk noise on shutdown (bug #7674)

[Robert Hancock]

Alan wrote:
> Stick some printk calls in drivers/ata/libata-eh.c in ata_eh_suspend, or
> turn on all the ATA debug and shutdown, the code should issue a cache
> flush followed by a standbynow1 command for each disk.
>
> Alan

I believe it runs on suspend, but we don't run that code on normal 
shutdown, do we?

Tejun Heo had a patch for sd that could (optionally) trigger a START 
STOP UNIT command to spin the disk down after synchronizing the cache 
before shutdown, but I haven't heard anything of it lately..

--
Robert Hancock      Saskatoon, SK, Canada
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Home Page: http://www.roberthancock.com/

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