[Bug 559639] [NEW] write cache logic reversed?

[Michael Fritscher]

Public bug reported:

since 2.6.32, I need to hdparm -W0 /dev/sda to get full performance
(e.g. hdparm -t /dev/sda while miranda on wine write continously a bit)

also, with "disabled" write cache, the hdd-led lights at ca. 25% of full strengts while running miranda if write cache is "on".
Didn't had that on 2.6.31.

HDD-Info:
	Model Number:       TOSHIBA MK3252GSX                       
	Firmware Revision:  LV010A  
is a 320 GB, 2,5', 5400 rpm, sata modell in a lenovo x61t.

I'm running current lucid.

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New

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write cache logic reversed?
https://bugs.launchpad.net/bugs/559639
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