Re: Loud "pop" coming from hard drive on reboot

[Alan Cox]

> Not that simple.  Most disks don't spin up on SYNCHRONIZE_CACHE if its 
> cache is clean.  Sadly some disks actually spin up when it receives spin 
> down command while spun down to immediately spin down again, so we would 
> be fixing problem for some number of disks while breaking others.  :-(

Snoop the last command sent to the drive, that tells you if you can skip
the cache flush ?
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/