How do I turn off "preemption" (getting "TIMEOUT - WRITE_DMA")

Kris Kennaway kris at
Tue Sep 28 09:36:02 PDT 2004

On Tue, Sep 28, 2004 at 12:15:54PM -0400, bsdfsse wrote:
> I am getting "TIMEOUT - WRITE_DMA" messages on my ad2 and ad3 
> hard-drives.  I never get them on ad0 or the CD drive.  I did some 
> searching, and it sounds like I need to turn of "preemption" in the 
> kernel.  I'm running 5.3-BETA4 on the computer.
> I am going to guess this is turned on for the beta-testing.
> Any ideas?  I just started running 5.x last night.  %-)

Update to the latest beta, which has a fixed ata driver.
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