On Thu, 2008-05-29 at 15:25 -0700, Renee Danson wrote: > On Wed, May 28, 2008 at 03:28:18PM +0800, Fu, Zhonghui wrote: > > Kaiwai Gardiner, > > > > The following is my test and it's result: > > > > Parameters: > > > > test case: surfing the internet > > time: 4 hours > > OS: B81 and B86 > > driver: iwk1.1 > > security: open > > configure mode: nwamd and manual > > > > Result: > > > > B81 + nwamd: work normally and work normally after OS reboot > > B81 + manual: work normally and work normally after OS reboot > > B86 + nwamd: "link down and up" occur and work normally after OS reboot > > B86 + manual: work normally and work normally after OS reboot > > > > Taking account of above results, I think iwk driver is good and the > > problem is from nwamd. So, could the developer of nwamd please give more > > explanations about this problem? > > Could you explain what you mean by "link down and up"? How did you > observe this? Did you see syslog messages from the mac module, like > those that Matthew first reported? > > Also, what exactly does link down/up mean for the iwk driver? This > concept is (at least for me) much less clear with wireless than with > wired links. Does "link up" map to "connected to an AP"? Or is there > some other meaning? > > There are only two cases in which nwam would disconnect (from an AP) > a wifi link: if it decided a preferred link was available (i.e. you > plugged in your ethernet device); or if it determined that the signal > strength was "very weak" (as reported by libdladm). Is it possible > that signal strength was the problem during your tests? > > Regarding the problem Matthew reported (link down following the error > report from ieee80211_crypto_enmic), it sounds like Quaker had some > possibilities to investigate. In particular, there's the CR that he > mentioned, 6698754, which is still open. > > There were also several bugs fixed in the iwk driver in nevada build > 87; Matthew was running build 90, but your tests were against builds > 81 and 86, and would not have included those fixes.
???6698754 mirrors exactly what I am experiencing. > > I also have a question for Matthew: > > > > Kaiwai Gardiner wrote: > > >> On Tue, 2008-05-27 at 10:07 +0800, Fu, Zhonghui wrote: > > >>> Kaiwai Gardiner, > > >>> > > >>> Have you used other wireless cards in addition to 4965? Is there the > > >>> same phenomena as 4965 on them? > > >>> Could you please give out your operation steps in detail? > > >> > > >> No, unfortunately not. I only have this one laptop. I do have a > > >> athereos one in my bedroom in a desktop and it doesn't display the > > >> same rate of dropping out - and dladm states that the reception is > > >> poor. Soomething is going wrong when a poor signal is maintaining a > > >> conneciton whilst this laptop classes the signal as excellent - the > > >> reception keeps falling out of the sky. > > I'm a little confused about the signal levels. Which device reports the > poor signal strength: the atheros or the iwk? The atheros. Matthew
