Subject: Re: disks cache [was Re: test of new powerdown facility ]
To: Manuel Bouyer <>
From: Erik E. Fair <>
List: tech-kern
Date: 06/11/1998 12:54:56
At 3:17 -0700 6/11/98, Manuel Bouyer wrote:
>On Jun 11, Jason Thorpe wrote

>> Also, if you panic, you won't unmount the file systems, so you won't
>> get "last close".  So, you _ALSO_ want a shutdown hook that disables
>> the write cache at shutdown time (assuming that disabling the write
>> cache has the effect of flushing it).
>Well, I didn't see anything about this, but I hope it does.

My notion was to disable write cache *before* the last write...

That may or may not *also* flush the cache. It's something we should ask
Western Digital, Quantum, and Seagate...

	Erik <>