Re: no luck with max_sectors_kb (Re: voluntary-preempt-2.6.8-rc2-J4)

[Ingo Molnar]

* Rudo Thomas <rudo@xxxxxxxxx> wrote:

> > does the patch below, ontop of -J7, help?
> 
> I tried it, but did not test tuning the value, as the patch has
> problems of its own: with device-mapper.
> 
> bio too big device dm-0 (256 > 255)
> 
> Again, some files cannot be read on the device.

ok, dm (and some other layered block drivers) set q->max_sectors
directly instead of using blk_queue_max_sectors().

	Ingo
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