Date: Sun, 31 Mar 2013 10:29:06 -0700 From: Adrian Chadd <adrian@freebsd.org> To: Joshua Isom <jrisom@gmail.com> Cc: "freebsd-wireless@freebsd.org" <freebsd-wireless@freebsd.org> Subject: Re: ath not working after a motherboard and ram upgrade Message-ID: <CAJ-VmomBT=BeAbNEs2o8vOH9cwdwvEzmY=%2B_O1EUYF4s68F_9g@mail.gmail.com> In-Reply-To: <51585558.8040202@gmail.com> References: <51578BAC.4090608@gmail.com> <CAJ-Vmo=ztG4%2BREqAC=x-pKkr7PpV=Wk8ZBKZ2u3HM1rwxLgOqQ@mail.gmail.com> <515826B9.6070509@gmail.com> <51585558.8040202@gmail.com>
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... that message is because it's scanning. :-) Try booting it with only 2GB of physical RAM. It may be something odd to do with how the DMA code works; the ath NIC is a 32 bit PCI device. I need to make sure it's totally 64 bit clean - not only 64 bit pointer clean, but all the mbufs need to be in the lower 32 bits of physical memory :) Adrian On 31 March 2013 08:25, Joshua Isom <jrisom@gmail.com> wrote: > I tried updating today to the new code, it seemed to make it worse and never > get decent ping times. With the code from before, it's dependent on boot, > either it will work fine on boot or fail. > > But it has to be related to the "handled npkts 0" message. When I'm getting > no messages, it's perfect. The number and speed of the messages is the > inverse of the network quality. When it's an intermittent loss, it degrades > a couple seconds before the messages start. > > > On 3/31/2013 7:06 AM, Joshua Isom wrote: >> >> If I drop down to one 8Gb stick, and I don't have other wifi devices >> near causing interference, I can get a reliable connection and low loss. >> If I have 16Gb, I can get about a minute or two of decent ping times >> before it degrades to multi-second pings of the router. Even at 8Gb, >> it's not guaranteed on boot, but rebooting does seem to fix it. At >> 16Gb, I tried two different sticks just to see if maybe it was one bad >> chip but it didn't change it. That means it's probably an address >> conflict, or cache size issue, right? >> >> On 3/31/2013 1:25 AM, Adrian Chadd wrote: >>> >>> does downgrading the motherboard/ram fix it? >>> >>> You were already running 64 bit, right? What if you just boot with 2gb >>> of ram? >>> >>> >>> >>> >>> adrian >>> >
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