Re: ipw driver

[Johannes Hofmann <Johannes.Hofmann@xxxxxx>]

YONETANI Tomokazu <qhwt+dfly@xxxxxxxxxx> wrote:
> Linux version also seems to have an issue(not a lock up though) related to bus
> mastering control and has a workaround to stick with C2:
>  http://ipw2100.sourceforge.net/#issues
> (we don't need this since setting cx_lowest=C2 is a sufficient workaround)
> 
> PCI bus mastering is disabled to enter C3 state, then re-enabled after
> resuming from it. I wonder if you have the same problem on FreeBSD-5.x .

I now tried the ipw driver on FreeBSD-5.3-BETA6 and got the exact same
lockups as soon as the C3 state is used. It does not lock up, as long as any
USB driver is loaded because this prevents the system from using the C3 state.

Bye Johannes