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Minnowboards freeze after a random amount of time #113

Open tchapi opened 5 years ago

tchapi commented 5 years ago

Hi

Similar to https://github.com/MinnowBoard-org/bugs-and-help/issues/64 or https://github.com/MinnowBoard-org/bugs-and-help/issues/57, I have 4 Turbot Quad boards that all freeze after a random amount of time, without any log, any preliminary sign, on different Ubuntu x64 versions (no modification of the OS whatsoever, just plain install). All the boards I have tested are on the latest firmware 0.98, are powered via a beefy 5V 6A power supply (tested different supplies to no avail), and have nothing connected to it except an HDMI screen.

I use industrial grade SD cards that work well.

I tried to contact support@minnowboard.org for a replacement but your mail server is broken (Action: failed Status: 4.4.1 Diagnostic-Code: smtp; The recipient server did not accept our requests to connect. [minnowboard.com 52.87.45.42: timed out] [minnowboard.com 52.6.46.72: timed out] )

What can I do to get a replacement for these boards ? Thanks a lot

tchapi commented 5 years ago

:tumbleweed:

ftab commented 5 years ago

I've got 3 minnowboards all doing the same thing, whether booting from SD cards or M.2 SATA SSDs. Disabling the multicore functionality seems to prevent it, but then of course you've paid for a quad core board that can't be a quad core board. And it's so slow when more than one thing's going on that it might as well have locked up.

MrMattBusby commented 5 years ago

We have more than 10 units, all dual Eth, Quad core, every single one of them would freeze after XXX amount of time. Anywhere from 0.5min to 3days. Seemed to freeze more when less was running.

We toyed with a few setting in the BIOS/OS but ultimately the ONLY consistent resolution we found was to not use the recommended Ubuntu OS. CentOS/KDE has worked without a hitch. Buggy/disappointing...

tchapi commented 5 years ago

... and nobody from Minnowboard responds ... ping @BrianOttaway ?

tchapi commented 5 years ago

ping @jketreno too

BrianRichardsonIntel commented 5 years ago

Have you contacted the board manufacturer (ADI/Silicom)?

tchapi commented 5 years ago

I have not, not sure I should though. Mouser, from which I bought the boards, told me to contact Minnowboard directly. I could give it a try.

umbaman commented 5 years ago

I did contact them and I got no reply. But after upgrading to the latest firmware version (Release 1.00) the system seems to be working ok. I haven't tested them thoroughly yet. I have 2 such boards. Both have the same Ubuntu x64 version. I use SD card on one and SATA SSD on the other... I will report back if my systems get to crash again

naikrovek commented 5 years ago

Do make sure (really make sure) that your power supply is up to the task, as well. I have a 5V 4A power supply that shipped with a $1200 Qualcomm dev kit that I ordered and it worked for about 5 seconds. It now delivers about 400mA at 4V. I also have several MicroUSB 5V 2.5A supplies from Adafruit that I'm lucky to get 500mA out of. (Adafruit have since switched to another and my new ones are great.)

My point is not to trust the rating on the case. Sudden high-current draws are not uncommon, and a brown out can show itself in many ways, one of which is a locked up board

If you have access to an electronic load, make sure your power supply can supply the power it claims it can supply.

This is more for future people who arrive here via Google than anyone specific in this thread.

tchapi commented 5 years ago

Yes @naikrovek you are right. In my case (I am an electronics engineer and I do this kind of stuff for a living), I am sure of the rating of the supplies I have. The problems appears on 5.25V / 6A supplies that are very reliable otherwise (I have concurrent boards that draw more than 5A and that work flawlessly on these supplies). But it's a common culprit, thanks for pointing that out for people who would stumble on this issue.

@umbaman I'm glad to hear that ! I don't see anything related to our problem in the release notes but I'm really interested to know if you experience any more crashes with this release

tchapi commented 5 years ago

@umbaman unfortunately after having installed the 1.0 firmware and tested, I still have random freezes happening...

umbaman commented 5 years ago

@tchapi me too. Although they seem to be reduced, I still have them.

umbaman commented 5 years ago

I left them running with the System Monitor in the foreground. Nothing unusual there... Any minnowboard guys here?