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Re: B3 dies without errors
Posted: 19 Nov 2010, 20:57
by Cheeseboy
Here is the syslog covering my last crash/total hang.
This time I gave it 15 minutes before pulling the plug.
Nov 20 02:31:25 b3 hostapd: wlan0: STA 00:23:76:fa:87:23 IEEE 802.11: authenticated
^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@Nov 20 02:48:07 b3 kernel: imklog 4.6.4, log source = /proc/kmsg started.
Wow!
Re: B3 dies without errors
Posted: 21 Nov 2010, 04:19
by pcrene
Bello cheeseboy (dutch?)
my B3 is running from THE start no hangups, fast and no problems.
What do you think happend? did you install anything special?
Rene
Re: B3 dies without errors
Posted: 21 Nov 2010, 04:44
by Cheeseboy
Hi Rene,
(dutch?)
No, yet another swede (but I used to live in Utrecht back in 1998-99, I miss the the cheese with mustard seeds in it)
I've installed tons of stuff
Every time I read about something I have to try it out. More often than not I leave it installed.
Do you have the WiFi version of B3?
Cheers
Re: B3 dies without errors
Posted: 21 Nov 2010, 07:27
by Ubi
Cheeseboy wrote:
No, yet another swede (but I used to live in Utrecht back in 1998-99, I miss the the cheese with mustard seeds in it)
It was probably
cumin, not mustard 
ubi
Re: B3 dies without errors
Posted: 21 Nov 2010, 07:41
by Cheeseboy
Hi Ubi,
I tasted the cumin cheese (similar cheese is also available in Sweden), also Gouda (or Gouda analogue) with chives in it.
But there was definitively a hard yellow cheese with mustard seeds in it, and it was wonderful.
The seeds popped in my mouth like small grenades of flavour when I chewed it...
If I remember correctly, there was no brand name, just generic Albert Heijn cheese, shrink-wrapped in plastic and cheep.
Sorry for killing the thread by being off-topic, but this subject is actually closer to my heart
Re: B3 dies without errors
Posted: 21 Nov 2010, 10:11
by Ubi
I'll send you some
Re: B3 dies without errors
Posted: 21 Nov 2010, 15:19
by pcrene
Hello
Yes it must be cumin cheese......tastefull......
My B3 is the main operational bubba, a B2 is full backup and synchonized every week.
a Thiird B2 i use for experiments, AND......if they work out they move to the B3.
Rene
Re: B3 dies without errors
Posted: 26 Nov 2010, 11:35
by Cheeseboy
One way of handling this is by creating a cron job that (hourly) pings some server, displays the ifconfig data and restarts the network. Output all data to >> /tmp/something.txt together with a timestamp and you can do some easy postmortem analysis without recompiling the kernel.
Hi Ubi (and everyone else),
I've now started putting a script together as per your suggestion.
Do you have any pointers on how to restart the network?
First I tried just calling:
but it gives me warnings about the restart argument is deprecated, so then I just used stop and then start, redirecting the output to my little log file.
It doesn't shut down the network though, this is the output when using "stop":
Code: Select all
not deconfiguring network interfaces: network file systems still mounted. ... (warning).
Am I looking in the wrong place?
Is there a better way to restart all the network interfaces from my script?
Many thanks!
/Cheeseboy
Re: B3 dies without errors
Posted: 26 Nov 2010, 13:28
by RandomUsername
You could try:
But I'm not sure if that would produce the desired results.
Re: B3 dies without errors
Posted: 26 Nov 2010, 13:49
by Cheeseboy
Hi,
Thanks for your input!
That's exactly what I ended up doing, but I'm also not sure if it will do any good.
Also, it doesn't work with eth1, probably because it is not listed in /etc/network/interfaces.
Anyway, here is my noddy little script as it is now:
Code: Select all
#!/bin/sh
outfile=/root/networktest.log
echo "------------------------" >> $outfile
date >> $outfile
ifconfig -a >> $outfile
ping -c 1 192.168.10.89 >> $outfile 2>&1
if [ $? -ne 0 ]; then
echo "--> Ping failed! - Restarting network..." >> $outfile
ifdown eth0 >> $outfile 2>&1
ifconfig eth1 down >> $outfile 2>&1
ifup eth0 >> $outfile 2>&1
ifconfig eth1 up >> $outfile 2>&1
ifconfig -a >> $outfile
fi
Any ideas for improvement are of course welcome!
Cheers,
Cheeseboy
Edit:
Added politeness...
Re: B3 dies without errors
Posted: 26 Nov 2010, 14:08
by DanielM
Cheeseboy wrote:Any ideas for improvement are of course welcome!
How about a "sync" at the end to make sure everything is really flushed to disk?
/Daniel
Re: B3 dies without errors
Posted: 26 Nov 2010, 14:11
by Cheeseboy
How about a "sync" at the end to make sure everything is really flushed to disk?
Done. Thanks!
Re: B3 dies without errors
Posted: 26 Nov 2010, 14:15
by DanielM
Cheeseboy wrote:How about a "sync" at the end to make sure everything is really flushed to disk?
Done. Thanks!
Det var så lite så
I will be very interested to hear about your results. My B3 has stopped working a few times and then it has been completely dead as in me having to pull the plug and reinsert it to get it going again. I suspect that means that entire operating system is dead and thus will not run any cron jobs either...
/Daniel
Re: B3 dies without errors
Posted: 26 Nov 2010, 14:35
by Ubi
This thread seems to be hung on two parallel thoughts. Is the unit really dead, or did it drop its network connection? It's quite an important difference
ubi
Re: B3 dies without errors
Posted: 26 Nov 2010, 14:38
by Cheeseboy
Hi Ubi.
Agreed.
I think it is dead (in my case anyway), as it doesn't even respond to the power button.
But at least I'll find out if the cron job even executes...