Subject: Re: ath0 problems with PM code?
To: Jared D. McNeill <email@example.com>
From: Steven M. Bellovin <firstname.lastname@example.org>
Date: 12/14/2007 13:27:25
On Fri, 14 Dec 2007 07:53:30 -0500 (EST)
"Jared D. McNeill" <email@example.com> wrote:
> On Fri, 14 Dec 2007, Steven M. Bellovin wrote:
> > I used to have serious tx timeout problems with ath0. After I added
> > hw.ath0.txintrperiod=1
> > to sysctl.conf, that stopped. That's also the case when I run the
> > PM branch. *However*... After a suspend/resume cycle, I started
> > seeing the problem; in fact, the device eventually became
> > unusable. Is it possible that some state isn't being saved? (I
> > tried reissuing the sysctl, of course, and setting it to 5 and then
> > 1; none of this helped.)
> > I only have one data point on this thus far, unlike the battery and
> > AC power situations, so it may be coincidence. (This is all on a
> > T42.)
> Make sure you have if_ath_pci r1.25.
Hmm -- I had 1.22. I'll rebuild.
--Steve Bellovin, http://www.cs.columbia.edu/~smb