Subject: Re: Extension of fsync_range() to permit forcing disk cache flushing
To: Daniel Carosone <>
From: Daniel Carosone <>
List: tech-kern
Date: 12/17/2004 11:10:00
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On Fri, Dec 17, 2004 at 10:41:12AM +1100, Daniel Carosone wrote:
> This anecdotal evidence suggests at least these drives don't do read
> validation, or don't have enough time to do remapping when the cache
> is full, or something similar when write cache is enabled.=20

I meant to add that none of these drives have come from windows
machines, where sync cache commands are issued, and the drive may
depend on these to trigger the validation and remapping.

> Whatever is actually going on, it has been enough for me to decide I
> don't trust the drives with write cache on.


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