Raspberry B+ 2 lock-ups

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linicks
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Raspberry B+ 2 lock-ups

Postby linicks » Sat Aug 22 2015 - 17:53:20

OK, after having this for a few months, the Pi just crashes between 5 to 10 days uptime. Nothing in the logs, no errors, no nothing. It works perfectly until it just *crashes* and locks up - a power cable out -> in is the only cure.

Here is what I have done/tried to do:

    Changed power supply
    Used a powered USB hub
    Used a usb ethernet adaptor instead of the on board net card
    Tried all the cmdline.txt kernel options for USB and the like (and many more)
    Bought a new Pi B+2 as I thought it might be a board hardware error
    Bought a new more expensive SDCard to run the system
    Attached a monitor - that when it does this is just blank screen, no signal

I am now lost to know what is going on.

Today I configured up 'watchdog':

http://www.instructables.com/id/Raspber ... atchDog-T/

... hopefully to see what is going on. But in the meantime, any ideas? I am at a loss now :(

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Re: Raspberry B+ 2 lock-ups

Postby maximus » Sun Aug 23 2015 - 17:34:35

I have a B+ and two Pi2's, all running Slackware, all chugging along for weeks on end without hitch.... I have no external hardware connected to any of them; no camera modules, no usb devices, no monitors, no special cmdline.txt modifications. All are running from SD cards, the B+ has a "Transcend" brand card and the other two are Samsung Pro's. I'm guessing there's something that's causing the kernel to lock up on yours, I can only suggest disabling any running services and/or removing any external hardware one by one to see if the problem goes away.

I did have a problem with one I set up for someone else, it worked fine for two or three weeks and just died. The problem was the SD card; it was some no-name brand I can't remember the name of, after removing it from the Pi and plugging it into a card reader, I couldn't access any of the partitions at all, and got plenty of input/output read errors. Basically, it was toast.

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Re: Raspberry B+ 2 lock-ups

Postby linicks » Sun Aug 23 2015 - 17:59:16

Hi Maximus,

I have tried all you suggested. The new SDCard is a 16GB Samsung - it appears works better than the 'noname' SDCard I had, but the Pi locked-up/crashed after 10 days yesterday - hence the 'watchdog' approach.

All my other 3 Pi B+ have uptimes now of over 100 days - just the new Pi B+2 does this.

One other thing is I get no file corruption - the /boot partition is not mounted anyway, but no issues at all when it does this on the other partitions. It's like the thing just gets turned off but with power still on? HINT: when it does happen, the board LED's show RED/GREEN ON (what does that mean?)

I have read somewhere that the B+2 has issues with some sort of USB stack that gets filled up, but can't find any info as searches pull in too much other nonsense.

Anyway, lets see what watchdog reveals - if it keeps the Pi going with no damage done, that will do until I get time to rebuild from scratch.

Thanks,

Nick
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Re: Raspberry B+ 2 lock-ups

Postby maximus » Sun Aug 23 2015 - 18:53:23

Well, that must be frustrating. :?

Guess you also tried updating the kernel/firmware?

Found this regarding red + green led always on:

http://elinux.org/R-Pi_Troubleshooting# ... on_display

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Re: Raspberry B+ 2 lock-ups

Postby linicks » Sun Aug 23 2015 - 20:11:34

maximus wrote:Well, that must be frustrating. :?

Guess you also tried updating the kernel/firmware?

Found this regarding red + green led always on:

http://elinux.org/R-Pi_Troubleshooting# ... on_display



Umm, thanks, but the thing boots OK, and works OK for 4 -> 10 days. I also use rpi-update to get the latest firmware and stuff.

All I can do is see what watchdog does.

And it is frustrating. I might install Windows10 :D

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Re: Raspberry B+ 2 lock-ups

Postby linicks » Tue Sep 08 2015 - 19:02:39

Well, the Pi locked up again yesterday morning after 04:30ish. No clues as usual. And more importantly the 'watchdog' daemon and the on board WD chip didn't restart the system. This to me indicates the whole Pi board crashes somehow.

I have now upped the 'over_voltatge' and 'force_turbo' parameters from a Gentoo page (those guys know what they are doing), and see what happens now:

Code: Select all

Temperature: 43.9 C
Voltage: 1.36 V (+0.16 overvolt)
Min speed: 900 MHz
Max speed: 900 MHz
Current speed: 900 MHz
Governor: ondemand


If anybody has any ideas, please let me know :)

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Re: Raspberry B+ 2 lock-ups

Postby linicks » Sat Sep 26 2015 - 14:21:56

Well, update on this:

:~$ uptime
13:18:54 up 14 days, 47 min, 1 user, load average: 0.00, 0.01, 0.05

\o/

The longest uptime I have had, and no gliches. It seems the overvoltage stuff, and also the USB power change (not noted above, but I am using 'max_usb_current=1)' I done worked.

I hope...

Nick :shock:
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Re: Raspberry B+ 2 lock-ups

Postby Exaga » Mon Sep 28 2015 - 09:05:07

linicks wrote:Well, update on this:

:~$ uptime
13:18:54 up 14 days, 47 min, 1 user, load average: 0.00, 0.01, 0.05

\o/

The longest uptime I have had, and no gliches. It seems the overvoltage stuff, and also the USB power change (not noted above, but I am using 'max_usb_current=1)' I done worked.

I hope...

Nick :shock:


Let's hope it continues to behave itself Nick. :lol:
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Re: Raspberry B+ 2 lock-ups

Postby linicks » Sat Oct 03 2015 - 15:17:20

Code: Select all

:~$ uptime
 14:16:11 up 21 days,  1:45,  1 user,  load average: 0.05, 0.04, 0.05


Looks like it :) I dunno what sorted it out of the above changes I done, but anyhow it appears to be running fine now.

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Re: Raspberry B+ 2 lock-ups

Postby sam » Sun Nov 29 2015 - 10:54:28

Using a RPi B and a RPi B 2 with industrial power supplies (output: +5V, 5.0A) connected over GPIO, without any issue in stability, so far. The power supply also powers an external USB hub.

When I started using my first RPi, I used a mobile phone charger as power supply over microUSB and it was unstable and crashed from time to time.

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Re: Raspberry B+ 2 lock-ups

Postby linicks » Sun Nov 29 2015 - 13:35:53

Well, since my last post on this (Oct 3rd), the Pi hasn't gone AWOL - just works. I shut it down yesterday to make a back up of the SDCard (I compiled a lot of complicated stuff, and don't want to lose it/do it all again), so see how it performs now - but I think the over-current thing I done fixed it.

But I dunno :D

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A. You can't get down off an elephant.

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Re: Raspberry B+ 2 lock-ups

Postby Exaga » Sun Nov 29 2015 - 13:38:11

I have a phone charger that says 5.0v @1A on the label but it only gives out 4.6v not 5.0v. Still great for charging the phone. Useless for the RPi.
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