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. 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? Thanks, renee
