'debug crashlog' was added in 2.6 I believe
Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 On Mon, Jan 11, 2016 at 11:08 AM, Darin Steffl <[email protected]> wrote: > I saw this exact problem last night in -15 degree weather here and emailed > Cambium support last night and by 8am this morning had test firmware > 2.6.1-RC1 which has a fix for the DDR memory timing which is causing this > problem. It might have helped that I emailed one of their engineers and he > immediately sent me back the following explanation of what is happening. If > you see this problem, I would highly recommend emailing him your "debug > crashlog" results and let him know you're trying this firmware and the > results of it so they can get in the next release if it works for you. It > also only affects certain units so this firmware shouldn't be for everyone. > I would reach out to Sriram before applying any of the firmware files in > the link below. > > > [email protected] > > > > > Hi Darin, > > Thanks for reaching out to me. > > We believe that there may be a DDR (memory) timing issue with a specific > set of MAC Addresses that were manufactured. The issue happens only when > the ambient temperature dips below -5 C. There is nothing wrong with the > memory but under winter temperatures it appears to be a bit more sensitive. > We can solve this problem by adjusting the timing of the DDR in software. > Since you are in Detroit, I suspect that your radios are running into this > issue. The MAC addresses you have sent me below appear to be in the list of > impacted devices. In addition, the crash logs you sent me also indicate its > due to the memory timing issue. It’ll be great if you can eventually send > me the crashlogs from the other two radios as well. > > Please find binaries that are designed to correct the timing error that > occurs with the DDR memory here: goo.gl/4TpMif. For the Sync radios use > the firmware labelled “ APPX….” and for non-sync radio use the firmware > labelled “SMPX…". We have tested this fix internally in cold chambers and > throughput tests, but has not gone through full regression yet. However, we > have also tested this fix in over 160 customers radio over the last week > who are impacted by this issue. > > Please install this firmware only on the impacted devices. In the > meantime, we will complete our internal testing and release 2.6.1 in the > next couple of weeks that will contain the solution. > > If you decide to install it, please keep me up to date on how it is > going. Like I mentioned earlier, this has been given out to a few other > customers in cold regions and they have reported positive results as their > radios have stabilized and the issue is no longer seen. I will keep you up > to date with how we are progressing along with further internal testing. > > Thanks, > Sriram > > > On Mon, Jan 11, 2016 at 9:40 AM, Josh Baird <[email protected]> wrote: > >> What did you hear, and from who? >> >> On Mon, Jan 11, 2016 at 10:39 AM, Josh Luthman < >> [email protected]> wrote: >> >>> From what I heard this morning I'm confident. And surprised it can be >>> fixed in software. >>> >>> Josh Luthman >>> Office: 937-552-2340 >>> Direct: 937-552-2343 >>> 1100 Wayne St >>> Suite 1337 >>> Troy, OH 45373 >>> On Jan 11, 2016 10:28 AM, "Vlad Sedov" <[email protected]> wrote: >>> >>>> That's promising... >>>> >>>> >>>> Vlad >>>> >>>> >>>> On 1/11/2016 9:25 AM, Mathew Howard wrote: >>>> >>>> No... it's not a connector issue. Cambium knows about it and they have >>>> a fix that they're testing. >>>> >>>> On Mon, Jan 11, 2016 at 9:22 AM, Vlad Sedov <[email protected]> wrote: >>>> >>>>> I don't buy the connector thing, at least not in all cases. I'm >>>>> looking at the output of "debug crashlog" on one of the affected radios, >>>>> and it does look like it's crashing hard. I don't see how it would be a >>>>> connector issue. Also, we have a few sites with zero issues.. Same >>>>> firmware >>>>> and everything. >>>>> >>>>> >>>>> Vlad >>>>> >>>>> >>>>> On 1/11/2016 9:20 AM, Tyson @ Internet Communications Inc (ICI) wrote: >>>>> >>>>> So is this a cable connector problem? >>>>> >>>>> *Tyson Burris, President* >>>>> *Internet Communications Inc.* >>>>> *739 Commerce Dr.* >>>>> *Franklin, IN 46131* >>>>> >>>>> *317-738-0320 <317-738-0320> Daytime #* >>>>> *317-412-1540 <317-412-1540> Cell/Direct #* >>>>> *Online: **www.surfici.net* >>>>> >>>>> >>>>> >>>>> Forgive the brevity, the typos and my fat fingers! >>>>> >>>>> On Jan 11, 2016, at 10:12 AM, Josh Baird < <[email protected]> >>>>> [email protected]> wrote: >>>>> >>>>> Yes. >>>>> >>>>> >>>>> http://community.cambiumnetworks.com/t5/ePMP-1000/Cold-Weather-Issues/m-p/36592#U36592 >>>>> >>>>> On Mon, Jan 11, 2016 at 10:11 AM, Vlad Sedov < <[email protected]> >>>>> [email protected]> wrote: >>>>> >>>>>> Hey folks, >>>>>> >>>>>> Is anyone having trouble with ePMP (GPS variety) in cold weather? We >>>>>> seem to have a few units that started randomly locking up in the middle >>>>>> of >>>>>> the night when temps are below freezing. Rebooting seems to clear things >>>>>> up >>>>>> for a day or so. >>>>>> >>>>>> >>>>>> peace >>>>>> >>>>>> Vlad >>>>>> >>>>> >>>>> >>>>> >>>> >>>> >> > > > -- > Darin Steffl > Minnesota WiFi > www.mnwifi.com > 507-634-WiFi > <http://www.facebook.com/minnesotawifi> Like us on Facebook > <http://www.facebook.com/minnesotawifi> >
