marcopete87

[SOLVED, PSU issue, SMB server issue] Asus thinkerboard hangs

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Good morning all!

I started with sbc when first Raspberry pi appeared (256MB of ram!), now i bought an Asus Thinkerboard to use with Zoneminder as server in an low power cluster video-surveillance system (at my home).

 

OS: Armbian 5.30 Ubuntu Xenial next 4.11.4 from ufficial torrent.

 

The board works just fine, except frequent hangs after 5-10 minutes of use.

I tried with different power supplies on micro usb port (2 of raspberry pi, 2.5A@5.1V and an external battery phone charger, i have also connected an 1x1000µF capacitor across gpio 5vcc terminals and ground); measured voltage seems to be ok.

The system doesn't have any usb device attacked and system boots into terminal mode.

Cpu governor is set to stay between 1.1GHz and 1.5GHz, temperature is 50-70°C and thermal throttling engage rarely (i have also changed thermal paste with an better quality).

 

I tried checking SD and Power supply, but i don't have any clue about this issue.

htop is saying about 50% cpu, 2.x system load

 

After some minutes, system simply stop to respond: lan goes down and, when logged into local terminal session,  i can only press enter (everything else won't work).

Sd activity (green led, i suppose) stay on, yellow led goes off (normally, it blinks).

 

Does anyone have any idea about this issue?

Thanks!

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1 hour ago, marcopete87 said:

Does anyone have any idea about this issue?

Hi there,

 

This sounds like a power supply issue/It's drawing too much power, I use a 5V3A on my Tinkerboard to avoid this. I haven't tested whether or not the PSU is able to provide the advertised 3A yet, I'm in the process of testing that out today, I'll edit/come back & let you know of my results.

 

The "Before reporting problems with your board running Armbian, check the following:" above has some helpful info too.

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Have you monitored the voltage at the 5V gpio pins?  Or at the USB connector?  I use a 5.25 volt supply since even without any power-hungy peripherals my board consumes 0.5 to 2.2 Amps.  Depending on load, of course.

 

I would recommend upgrading to at least a kernel 4.12 image if you need Mainline.  There have been a collection of various improvements to the hardware support since 4.11, which is also an eol kernel (no more updates from kernel.org).  As to your specific issues, I'd say we revisit after the upgrade.

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3 minutes ago, mpmc said:

I use a 5V3A on my Tinkerboard

 

Even before going to 3A I would recommend finding a 5.25 V supply. 2.5A should be enough, as repeated again and again the microUSB is only rated by specification for 1.8A continuous.  I would not assume any board uses a "better than minimum spec" connector.

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Ok, thank you!

Now it's quite late, but i'm going to monitor voltage on 5Vcc GPIO pins.

I'm going also to upgrade kernel version.

 

However, if is power supply, why every power supply thinkerboard after a while?

I noticed, setting lower frequency limit in cpu governor that setting more than 600MHz make this board more stable...

 

 

(edit 1): voltage on vcc pin on gpio is 5.11-5.14v under load at 1.5GHz, after 2 minutes, it stabilizes on 5.2V and then, drop to 5.17 when board hangs.

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The supply has to always be considered suspect on any of these boards that power their elephant CPU through a small straw.  See my post within the length "Tinkerboard" thread:

 

 

That said, 4.11 was prone to HDMI dropouts, had no WLAN support, and had an incomplete device tree/potentially incorrect thermal trip points. (I updated as the Asus/Rockchip team updated.)  There have been a considerable list of improvements in driver support since.

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Thank you very much for support!

Tomorrow i'll cut the micro usb cable to power via GPIO (with misc filter capacitors).

 

Now, i'm searching about upgrade Armbian kernel.

 

(10.10 am update) i cut micro usb connector, i'm using GPIO connector for power.

Voltage is between 5.30V and 5.29V

 

(10.45 am update) no differences, board continue to hang...

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Update: i upgraded kernel getting latest package from

https://apt.armbian.com/pool/main/l/linux-4.12.0-rockchip/

 

and running 

dpkg -i *.deb

 

now, i'll let this run for a while, meanwhile i'm going to buy a new micro sd card, i'll test it in case of hangs. (i'll do tomorrow)

 

p.s. i noticed shutdown -r now command doesn't reboot, but seems to shutdown without reboot option, may be an help for find the solution on my issue?

 

 

updated kernel, after 30 minutes, it freezes (again).

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Hi, as usual i thank you for support.

I mapped 1.25GB of ram as /dev/shm for data shares, swap is 128MB, 0% used (because swappiness is 0)

First, i was thinking about thermal issues, but it doesn't seems to be the problem  (board hangs also where placed over an thermal pad with generous heatsink).

Last armbianmonitor -m print (before hanging) was:

Quote

09:17:41: 1200MHz 11.95  61%   5%  37%   1%  15%   1% 46.4°C

 

11.95 of load is very strange as normal is near 2.

 

I noticed board hangs faster as cpu workload increase.

 

 

update: changed sd card with a new Samsung MB-MG16EA/EU, nothing solved.

I'm writing an new image to sd card, maybe system corrupted?

 

update2: shutdown -r now doesn't reboot.

update3: all configured as original, testing new installation (img without desktop environment)

 

for log analysis: http://sprunge.us/FJib

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Just now, TonyMac32 said:

@Igor all archive images for Tinker appear to be 5.30 on dl.armbian.com/tinkerboard. 


That is correct. Only nightly images were updated. Update others too?

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Yes, some issues have been resolved since that one came out, it would be best not to keep them in circulation.  First though, I'd like to see if the nightly resolves his issue and do some testing myself.  The 4.12.y builds were all very stable, I don't know the 4.13 as well.

 

 

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Ok, thank you all, i'll try as soon as possible.

 

update: now, i'm running ARMBIAN 5.32.170920 nightly Ubuntu 16.04.3 LTS 4.13.0-rockchip 

reboot is fixed.

 

update2: now, it seems more stable, but after 1 hour, it hangs again (red led stays on, sometimes also green, yellow stop to pulse).

I tried updating board firmware, i'll let you know about results...

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1 hour ago, Igor said:

 

Try two via powered USB hub.

yesterday i tried, hanged after 1 hour.

I tried with different power supplies (2 of Raspberry pi 2.5A power supplies and one battery bank).

Now, i'm trying an ikea battery bank, which have unstable voltage output (on GPIO vcc pins float between 4.7 and 4.8V)

after 15 minutes hanged.

I don't have any good powered usb hub.

 

I'm trying resizing ram buffer, etc

 

 

with 3 cameras, hangs after 5 minutes.

when hanged, it had 3 ssh sessions opened:

 

armbianmonitor -m
10:25:01: 1800MHz  4.63  38%   3%  25%   0%   8%   0% 58.2°C


root@tinkerboard:~# htop 

  1  [|||||||||||||||||||||                                    30.7%]   Tasks: 69, 72 thr; 2 running
  2  [|||||||||||||||||||||||||||||||||                        50.0%]   Load average: 4.63 2.79 1.24 
  3  [|||||||||||||||||||||||||||||||||||||||||||||||||||||||||32.2%]   Uptime: 00:08:11
  4  [|||||||||||||||||||||||||||||||||                        49.3%]
  Mem[||||||||||||||||||||||||||||||||||||||||||||||||||||943M/1.96G]
  Swp[                                                       0K/128M]

  PID USER      PRI  NI  VIRT   RES   SHR S CPU% MEM%   TIME+  Command
 3325 www-data   20   0  342M  193M  185M R 43.1  9.7  0:40.68 /usr/bin/zma -m 4
 1769 www-data   20   0  423M  233M  211M S 27.9 11.6  2:07.05 /usr/bin/zmc -m 8
 3116 www-data   20   0  404M  212M  189M S 27.2 10.6  1:15.95 /usr/bin/zmc -m 2
 3270 www-data   20   0  341M  190M  184M S 25.2  9.5  0:23.68 /usr/bin/zma -m 2
 2754 www-data   20   0  404M  212M  189M S 24.5 10.6  1:10.63 /usr/bin/zmc -m 4
 2780 www-data   20   0  404M  212M  189M S  6.0 10.6  0:14.09 zmc
 3154 www-data   20   0  404M  212M  189M S  5.3 10.6  0:15.44 zmc
 1921 www-data   20   0  423M  233M  211M S  4.6 11.6  0:21.19 zmc
 3151 www-data   20   0  404M  212M  189M S  4.0 10.6  0:10.47 zmc
 3155 www-data   20   0  404M  212M  189M S  4.0 10.6  0:10.57 zmc
 3152 www-data   20   0  404M  212M  189M S  4.0 10.6  0:10.43 zmc
 3153 www-data   20   0  404M  212M  189M S  4.0 10.6  0:10.46 zmc
 1922 www-data   20   0  423M  233M  211M S  4.0 11.6  0:16.51 zmc
 1925 www-data   20   0  423M  233M  211M S  3.3 11.6  0:15.05 zmc
 1923 www-data   20   0  423M  233M  211M S  3.3 11.6  0:14.84 zmc
 1924 www-data   20   0  423M  233M  211M S  2.7 11.6  0:14.85 zmc
 2782 www-data   20   0  404M  212M  189M S  2.7 10.6  0:07.76 zmc
F1Help  F2Setup F3SearchF4FilterF5Tree  F6SortByF7Nice -F8Nice +F9Kill  F10Quit


top:

root@tinkerboard:~# iostat 
Linux 4.13.0-rockchip (tinkerboard) 	09/20/2017 	_armv7l_	(4 CPU)

avg-cpu:  %user   %nice %system %iowait  %steal   %idle
          24.30    0.20    4.56    4.15    0.00   66.78

Device:            tps    kB_read/s    kB_wrtn/s    kB_read    kB_wrtn
mmcblk0          18.83       889.21       248.86     295145      82600

root@tinkerboard:~# iotop 
Could not run iotop as some of the requirements are not met:
- Linux >= 2.6.20 with
  - I/O accounting support (CONFIG_TASKSTATS, CONFIG_TASK_DELAY_ACCT, CONFIG_TASK_IO_ACCOUNTING)
root@tinkerboard:~# top

top - 10:25:04 up 8 min,  3 users,  load average: 4.63, 2.79, 1.24
Tasks: 153 total,   2 running, 151 sleeping,   0 stopped,   0 zombie
%Cpu(s): 11.2 us,  2.5 sy,  0.0 ni, 77.9 id,  8.1 wa,  0.0 hi,  0.4 si,  0.0 st
KiB Mem :  2054344 total,    56352 free,   371780 used,  1626212 buff/cache
KiB Swap:   131068 total,   131068 free,        0 used.  1010556 avail Mem 

  PID USER      PR  NI    VIRT    RES    SHR S  %CPU %MEM     TIME+ COMMAND                                                                                                                                                            
 3325 www-data  20   0  364548 211804 189904 S  29.6 10.3   0:40.95 zma                                                                                                                                                                
   31 root      20   0       0      0      0 R  24.3  0.0   0:00.73 khungtaskd                                                                                                                                                         
 3116 www-data  20   0  413720 217104 193860 S  20.9 10.6   1:16.19 zmc                                                                                                                                                                
 1769 www-data  20   0  433784 238692 216416 S  20.3 11.6   2:07.26 zmc                                                                                                                                                                
 3270 www-data  20   0  349228 194748 189088 D  18.6  9.5   0:23.88 zma                                                                                                                                                                
 2754 www-data  20   0  414112 217932 193900 S  16.3 10.6   1:10.76 zmc                                                                                                                                                                
 1017 root      20   0       0      0      0 S   0.7  0.0   0:02.19 cifsd                                                                                                                                                              
    8 root      20   0       0      0      0 S   0.3  0.0   0:00.89 rcu_preempt                                                                                                                                                        
   25 root      20   0       0      0      0 S   0.3  0.0   0:00.17 ksoftirqd/3                                                                                                                                                        
 2679 root      20   0    4912   2612   1984 S   0.3  0.1   0:03.96 htop                                                                                                                                                               
 3687 root      20   0       0      0      0 S   0.3  0.0   0:00.17 kworker/0:2                                                                                                                                                        
 4054 root      20   0       0      0      0 S   0.3  0.0   0:00.13 kworker/3:0                                                                                                                                                        
 4298 root      20   0    6572   2656   2216 R   0.3  0.1   0:00.03 top                                                                                                                                                                
    1 root      20   0   22808   3724   2532 S   0.0  0.2   0:02.89 systemd                                                                                                                                                            

 

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update: i noticed system bash become unresponsive prior hangs.

df -h command wait something forever

service command do same thing

system load jump to 8.50

apache server hangs.

 

maybe some process which is out of control?

more then i wait, more processes go to "uninterruptible sleep" "D" status on htop.

 

io bottleneck?

 

last hang:

top:

top - 11:26:11 up 16 min,  4 users,  load average: 3.87, 3.50, 2.31
Tasks: 156 total,   1 running, 155 sleeping,   0 stopped,   0 zombie
%Cpu(s): 40.8 us,  8.1 sy,  0.0 ni, 38.4 id, 10.8 wa,  0.0 hi,  1.9 si,  0.0 st
KiB Mem :  2054344 total,    52328 free,   373420 used,  1628596 buff/cache
KiB Swap:   131068 total,   131068 free,        0 used.  1012184 avail Mem 

  PID USER      PR  NI    VIRT    RES    SHR S  %CPU %MEM     TIME+ COMMAND      
 1547 www-data  20   0  372636 219844 212336 S  58.3 10.7   8:07.64 zma          
 5139 www-data  20   0  351036 198224 189836 S  37.4  9.6   1:24.31 zma          
 1428 www-data  20   0  414440 217364 193748 S  33.4 10.6   5:20.07 zmc          
 1520 www-data  20   0  436740 239460 216380 S  27.8 11.7   4:33.90 zmc          
 1489 www-data  20   0  414096 217832 193684 S  20.2 10.6   3:51.11 zmc          
 6555 root      20   0    5392   3496   2168 S   2.3  0.2   0:00.07 bash         
 6469 root      20   0   11872   4620   3916 S   1.7  0.2   0:00.07 sshd         
 2330 root      20   0    5308   3012   1976 S   1.3  0.1   0:13.11 htop         
 1026 root      20   0       0      0      0 S   1.0  0.0   0:12.04 cifsd        
   40 root      20   0       0      0      0 S   0.7  0.0   0:05.38 kswapd0      
  381 root      20   0    6136   1956   1652 S   0.7  0.1   0:00.70 systemd-jour+
 2205 root      20   0    6716   2876   2244 R   0.7  0.1   0:04.37 top          
    8 root      20   0       0      0      0 S   0.3  0.0   0:02.80 rcu_preempt  
  692 message+  20   0    5132   2868   2316 S   0.3  0.1   0:00.25 dbus-daemon  
  757 root      20   0   36804   5624   4980 S   0.3  0.3   0:00.05 polkitd      
 1304 www-data  20   0   19524  10992   3260 S   0.3  0.5   0:01.09 zmdc.pl      
 6025 root      20   0       0      0      0 S   0.3  0.0   0:00.11 kworker/3:1  
    1 root      20   0   24036   3892   2556 S   0.0  0.2   0:02.80 systemd      
    2 root      20   0       0      0      0 S   0.0  0.0   0:00.00 kthreadd     
    3 root      20   0       0      0      0 S   0.0  0.0   0:01.12 kworker/0:0  
    4 root       0 -20       0      0      0 S   0.0  0.0   0:00.00 kworker/0:0H 
    6 root       0 -20       0      0      0 S   0.0  0.0   0:00.00 mm_percpu_wq 
    7 root      20   0       0      0      0 S   0.0  0.0   0:00.15 ksoftirqd/0  
    9 root      20   0       0      0      0 S   0.0  0.0   0:00.00 rcu_sched    
   10 root      20   0       0      0      0 S   0.0  0.0   0:00.00 rcu_bh       
   11 root      rt   0       0      0      0 S   0.0  0.0   0:00.00 migration/0  
   12 root      20   0       0      0      0 S   0.0  0.0   0:00.00 cpuhp/0      
   13 root      20   0       0      0      0 S   0.0  0.0   0:00.00 cpuhp/1      
   14 root      rt   0       0      0      0 S   0.0  0.0   0:00.00 migration/1  
   15 root      20   0       0      0      0 S   0.0  0.0   0:00.12 ksoftirqd/1  
   17 root       0 -20       0      0      0 S   0.0  0.0   0:00.00 kworker/1:0H 
   18 root      20   0       0      0      0 S   0.0  0.0   0:00.00 cpuhp/2      
   19 root      rt   0       0      0      0 S   0.0  0.0   0:00.00 migration/2  
   20 root      20   0       0      0      0 S   0.0  0.0   0:00.08 ksoftirqd/2  
   21 root      20   0       0      0      0 S   0.0  0.0   0:00.00 kworker/2:0  
   22 root       0 -20       0      0      0 S   0.0  0.0   0:00.00 kworker/2:0H 
   23 root      20   0       0      0      0 S   0.0  0.0   0:00.00 cpuhp/3      
   24 root      rt   0       0      0      0 S   0.0  0.0   0:00.01 migration/3  
   25 root      20   0       0      0      0 S   0.0  0.0   0:01.30 ksoftirqd/3  
   26 root      20   0       0      0      0 S   0.0  0.0   0:00.00 kworker/3:0  
   27 root       0 -20       0      0      0 S   0.0  0.0   0:00.00 kworker/3:0H 
   28 root      20   0       0      0      0 S   0.0  0.0   0:00.01 kdevtmpfs    
   29 root       0 -20       0      0      0 S   0.0  0.0   0:00.00 netns        
   31 root      20   0       0      0      0 S   0.0  0.0   0:00.00 khungtaskd   
   32 root      20   0       0      0      0 S   0.0  0.0   0:00.00 oom_reaper   
   33 root       0 -20       0      0      0 S   0.0  0.0   0:00.00 writeback    
   34 root       0 -20       0      0      0 S   0.0  0.0   0:00.00 crypto       
   35 root       0 -20       0      0      0 S   0.0  0.0   0:00.00 kblockd      
   36 root       0 -20       0      0      0 S   0.0  0.0   0:00.00 devfreq_wq   
   37 root       0 -20       0      0      0 S   0.0  0.0   0:00.00 cfg80211     
   38 root       0 -20       0      0      0 S   0.0  0.0   0:00.00 rpciod       
   39 root       0 -20       0      0      0 S   0.0  0.0   0:00.00 xprtiod      
   41 root      20   0       0      0      0 S   0.0  0.0   0:00.00 ecryptfs-kth+
   42 root       0 -20       0      0      0 S   0.0  0.0   0:00.00 nfsiod       
   43 root       0 -20       0      0      0 S   0.0  0.0   0:00.00 cifsiod      
   44 root       0 -20       0      0      0 S   0.0  0.0   0:00.00 cifsoplockd  
   45 root      20   0       0      0      0 S   0.0  0.0   0:00.00 jfsIO        
   46 root      20   0       0      0      0 S   0.0  0.0   0:00.00 jfsCommit    
   47 root      20   0       0      0      0 S   0.0  0.0   0:00.00 jfsCommit    
   48 root      20   0       0      0      0 S   0.0  0.0   0:00.00 jfsCommit    
   49 root      20   0       0      0      0 S   0.0  0.0   0:00.00 jfsCommit  
root@tinkerboard:~# htop 



  1  [||||||||||||||||||||||||||||                             44.7%]   Tasks: 74, 72 thr; 5 running
  2  [|||||||||||||||||||||||||||||||||                        52.3%]   Load average: 3.87 3.50 2.31 
  3  [||||||||||||||||                                         25.2%]   Uptime: 00:16:23
  4  [||||||||||||||||||||||||||||||                           47.7%]
  Mem[||||||||||||||||||||||||||||||||||||||||||||||||||||956M/1.96G]
  Swp[                                                       0K/128M]

  PID USER      PRI  NI  VIRT   RES   SHR S CPU% MEM%   TIME+  Command
 1547 www-data   20   0  363M  214M  207M R 57.4 10.7  8:08.78 /usr/bin/zma -m 8
 5139 www-data   20   0  346M  195M  185M R 33.4  9.7  1:25.20 /usr/bin/zma -m 4
 1428 www-data   20   0  404M  212M  189M S 30.1 10.6  5:20.68 /usr/bin/zmc -m 2
 1520 www-data   20   0  426M  233M  211M S 28.0 11.7  4:34.46 /usr/bin/zmc -m 8
 1489 www-data   20   0  404M  212M  189M S 20.7 10.6  3:51.66 /usr/bin/zmc -m 4
 1625 www-data   20   0  404M  212M  189M S  5.3 10.6  0:43.86 /usr/bin/zmc -m 2 
 1621 www-data   20   0  404M  212M  189M S  4.7 10.6  1:07.58 /usr/bin/zmc -m 2 
 1726 www-data   20   0  404M  212M  189M R  4.7 10.6  0:47.00 /usr/bin/zmc -m 4 
 1655 www-data   20   0  426M  233M  211M S  4.7 11.7  0:44.93 /usr/bin/zmc -m 8 
 1622 www-data   20   0  404M  212M  189M S  4.7 10.6  0:44.12 /usr/bin/zmc -m 2 
 1624 www-data   20   0  404M  212M  189M S  4.0 10.6  0:43.62 /usr/bin/zmc -m 2 
 1623 www-data   20   0  404M  212M  189M S  4.0 10.6  0:43.66 /usr/bin/zmc -m 2 
 1659 www-data   20   0  426M  233M  211M S  4.0 11.7  0:32.95 /usr/bin/zmc -m 8 
 1656 www-data   20   0  426M  233M  211M S  3.3 11.7  0:36.15 /usr/bin/zmc -m 8 
 1658 www-data   20   0  426M  233M  211M S  2.7 11.7  0:32.94 /usr/bin/zmc -m 8 
 1657 www-data   20   0  426M  233M  211M S  2.7 11.7  0:32.89 /usr/bin/zmc -m 8 
 1727 www-data   20   0  404M  212M  189M S  2.7 10.6  0:24.76 /usr/bin/zmc -m 4 
 1725 www-data   20   0  404M  212M  189M S  2.0 10.6  0:25.83 /usr/bin/zmc -m 4 
 1728 www-data   20   0  404M  212M  189M S  2.0 10.6  0:25.94 /usr/bin/zmc -m 4 
 1729 www-data   20   0  404M  212M  189M S  2.0 10.6  0:25.99 /usr/bin/zmc -m 4 
 2330 root       20   0  5308  3012  1976 R  1.3  0.1  0:13.15 htop
 2205 root       20   0  6716  2876  2244 S  0.0  0.1  0:04.37 top
 6555 root       20   0  5392  3496  2168 S  0.0  0.2  0:00.08 -bash
 2083 root       20   0 12008  4644  3940 S  0.0  0.2  0:00.29 sshd: root@pts/1
 6469 root       20   0 11872  4620  3916 S  0.0  0.2  0:00.07 sshd: root [priv]
  381 root       20   0  6136  1956  1652 S  0.0  0.1  0:00.70 /lib/systemd/systemd-journald
 1304 www-data   20   0 19524 10992  3260 S  0.0  0.5  0:01.09 /usr/bin/perl -wT /usr/bin/zmdc.pl startup
  692 messagebu  20   0  5132  2868  2316 S  0.0  0.1  0:00.25 /usr/bin/dbus-daemon --system --address=systemd: --nofork --nopidfile --systemd-a
  757 root       20   0 36804  5624  4980 S  0.0  0.3  0:00.05 /usr/lib/policykit-1/polkitd --no-debug
  777 mysql      20   0  530M  116M 12616 S  0.0  5.8  0:01.28 /usr/sbin/mysqld
 2029 root       20   0  4396  2736  2032 S  0.0  0.1  0:01.16 /bin/bash /usr/bin/armbianmonitor -m
  690 syslog     20   0 31172  2288  1700 S  0.0  0.1  0:00.15 /usr/sbin/rsyslogd -n
  697 root       20   0 38196  5800  5156 S  0.0  0.3  0:00.15 /usr/lib/accountsservice/accounts-daemon
  272 root       20   0  7204  4028   964 S  0.0  0.2  0:01.46 /usr/sbin/haveged --Foreground --verbose=1 -w 1024
  714 root       20   0 38196  5800  5156 S  0.0  0.3  0:00.08 /usr/lib/accountsservice/accounts-daemon 
 1896 root       20   0 11872  4616  3912 S  0.0  0.2  0:00.15 sshd: root@pts/0
  818 mysql      20   0  530M  116M 12616 S  0.0  5.8  0:00.05 /usr/sbin/mysqld 
 6326 www-data   20   0 17888 12120  4392 S  0.0  0.6  0:00.39 /usr/bin/perl -wT /usr/bin/zmdc.pl status
 1212 www-data   20   0  149M 10892  6264 S  0.0  0.5  0:00.10 /usr/sbin/apache2 -k start
  695 syslog     20   0 31172  2288  1700 S  0.0  0.1  0:00.06 /usr/sbin/rsyslogd -n 
  905 mysql      20   0  530M  116M 12616 S  0.0  5.8  0:00.06 /usr/sbin/mysqld 
 1568 www-data   20   0 20488 13376  4716 S  0.0  0.7  0:01.60 /usr/bin/perl -wT /usr/bin/zmaudit.pl -c
  702 root       20   0 75096 12168 10448 S  0.0  0.6  0:00.92 /usr/sbin/NetworkManager --no-daemon
  911 root       20   0  7496  4664  4184 S  0.0  0.2  0:00.20 /sbin/wpa_supplicant -u -s -O /run/wpa_supplicant
  820 mysql      20   0  530M  116M 12616 S  0.0  5.8  0:00.04 /usr/sbin/mysqld 
  758 root       20   0 75096 12168 10448 S  0.0  0.6  0:00.02 /usr/sbin/NetworkManager --no-daemon 
  693 syslog     20   0 31172  2288  1700 S  0.0  0.1  0:00.06 /usr/sbin/rsyslogd -n 
    1 root       20   0 24036  3892  2556 S  0.0  0.2  0:02.80 /sbin/init scandelay
 1152 ntp        20   0 14284  3344  2880 S  0.0  0.2  0:00.18 /usr/sbin/ntpd -p /var/run/ntpd.pid -g -u 108:113
  815 mysql      20   0  530M  116M 12616 S  0.0  5.8  0:00.05 /usr/sbin/mysqld 
  811 mysql      20   0  530M  116M 12616 S  0.0  5.8  0:00.05 /usr/sbin/mysqld 
 6054 www-data   20   0 17888 12120  4392 S  0.0  0.6  0:00.38 /usr/bin/perl -wT /usr/bin/zmdc.pl status
  817 mysql      20   0  530M  116M 12616 S  0.0  5.8  0:00.05 /usr/sbin/mysqld 
  812 mysql      20   0  530M  116M 12616 S  0.0  5.8  0:00.06 /usr/sbin/mysqld 
 2207 root       20   0 12008  4716  4012 S  0.0  0.2  0:00.20 sshd: root@pts/2
  813 mysql      20   0  530M  116M 12616 S  0.0  5.8  0:00.05 /usr/sbin/mysqld 
 1203 root       20   0  149M 19164 16068 S  0.0  0.9  0:00.10 /usr/sbin/apache2 -k start
  814 mysql      20   0  530M  116M 12616 S  0.0  5.8  0:00.04 /usr/sbin/mysqld 
F1Help  F2Setup F3SearchF4FilterF5Tree  F6SortByF7Nice -F8Nice +F9Kill  F10Quit
root@tinkerboard:~# armbianmonitor -m
Stop monitoring using [ctrl]-[c]
Time        CPU    load %cpu %sys %usr %nice %io %irq   CPU
11:10:27: 1800MHz  1.42  54%  12%  36%   0%   4%   1% 54.2°C
11:10:32: 1800MHz  1.54  54%  11%  37%   0%   3%   1% 53.8°C
11:10:37: 1800MHz  1.66  55%  11%  38%   0%   3%   1% 55.0°C
11:10:42: 1800MHz  1.77  55%  10%  39%   0%   3%   1% 55.5°C
11:10:47: 1800MHz  1.79  55%  10%  40%   0%   2%   1% 55.9°C
11:10:52: 1800MHz  1.96  55%  10%  41%   0%   2%   1% 55.5°C
11:10:57: 1800MHz  2.29  55%  10%  41%   0%   2%   1% 57.3°C
11:11:03: 1800MHz  2.18  55%   9%  41%   0%   2%   1% 56.8°C
11:11:08: 1800MHz  2.41  55%   9%  42%   0%   2%   1% 57.7°C
11:11:13: 1800MHz  2.54  55%   9%  42%   0%   2%   1% 57.7°C
11:11:18: 1800MHz  2.73  56%   9%  43%   0%   2%   1% 58.2°C
11:11:23: 1800MHz  2.59  56%   9%  43%   0%   1%   1% 59.1°C
11:11:28: 1800MHz  2.71  56%   8%  43%   0%   1%   1% 60.4°C
11:11:33: 1800MHz  2.73  56%   8%  43%   0%   1%   1% 59.5°C
Time        CPU    load %cpu %sys %usr %nice %io %irq   CPU
11:11:38: 1800MHz  2.83  56%   8%  43%   0%   1%   1% 58.2°C
11:11:43: 1800MHz  2.93  56%   8%  43%   0%   1%   1% 60.0°C
11:11:48: 1800MHz  2.85  56%   8%  44%   0%   1%   1% 60.8°C
11:11:53: 1800MHz  2.78  56%   8%  44%   0%   1%   1% 60.0°C
11:11:58: 1800MHz  2.88  56%   8%  44%   0%   1%   1% 60.4°C
11:12:03: 1800MHz  2.89  56%   8%  44%   0%   1%   1% 61.7°C
11:12:08: 1800MHz  2.90  56%   8%  44%   0%   1%   1% 61.7°C
11:12:14: 1800MHz  2.99  56%   8%  44%   0%   1%   1% 62.1°C
11:12:19: 1800MHz  2.99  56%   8%  44%   0%   1%   1% 59.5°C
11:12:24: 1800MHz  2.91  56%   8%  45%   0%   1%   1% 60.8°C
11:12:29: 1800MHz  3.00  56%   8%  45%   0%   1%   1% 62.5°C
11:12:34: 1800MHz  3.16  56%   8%  45%   0%   1%   1% 62.1°C
11:12:39: 1800MHz  3.15  56%   8%  45%   0%   1%   1% 62.5°C
11:12:44: 1800MHz  3.29  56%   8%  45%   0%   1%   1% 62.1°C
11:12:49: 1800MHz  3.27  56%   8%  45%   0%   1%   1% 60.8°C
Time        CPU    load %cpu %sys %usr %nice %io %irq   CPU
11:12:54: 1800MHz  3.17  56%   8%  45%   0%   1%   1% 63.8°C
11:12:59: 1800MHz  3.15  56%   8%  45%   0%   1%   1% 62.5°C
11:13:04: 1800MHz  3.06  56%   8%  45%   0%   1%   1% 62.9°C
11:13:09: 1800MHz  3.38  56%   8%  45%   0%   1%   1% 63.8°C
11:13:14: 1800MHz  3.51  56%   7%  45%   0%   1%   1% 64.2°C
11:13:20: 1800MHz  3.55  56%   7%  45%   0%   1%   1% 63.3°C
11:13:25: 1800MHz  3.34  56%   7%  45%   0%   1%   1% 65.0°C
11:13:30: 1800MHz  3.32  56%   7%  45%   0%   1%   1% 64.2°C
11:13:35: 1800MHz  3.21  56%   7%  45%   0%   1%   1% 65.4°C
11:13:40: 1800MHz  3.11  56%   7%  45%   0%   1%   1% 63.8°C
11:13:45: 1800MHz  3.26  56%   7%  45%   0%   1%   1% 65.0°C
11:13:50: 1800MHz  3.16  56%   7%  45%   0%   1%   1% 63.8°C
11:13:55: 1800MHz  3.38  56%   7%  45%   0%   1%   1% 64.6°C
11:14:00: 1800MHz  3.51  56%   7%  45%   0%   1%   1% 64.6°C
11:14:05: 1800MHz  3.47  56%   7%  45%   0%   1%   1% 64.2°C
Time        CPU    load %cpu %sys %usr %nice %io %irq   CPU
11:14:10: 1800MHz  3.51  56%   7%  45%   0%   1%   1% 65.0°C
11:14:15: 1800MHz  3.39  56%   7%  45%   0%   1%   1% 66.2°C
11:14:20: 1800MHz  3.60  56%   7%  46%   0%   1%   1% 66.9°C
11:14:26: 1800MHz  3.71  56%   7%  46%   0%   1%   1% 65.4°C
11:14:31: 1800MHz  3.58  56%   7%  46%   0%   1%   1% 66.2°C
11:14:36: 1800MHz  3.37  56%   7%  46%   0%   1%   1% 66.5°C
11:14:41: 1800MHz  3.42  56%   7%  46%   0%   1%   1% 66.2°C
11:14:46: 1800MHz  3.63  56%   7%  46%   0%   1%   1% 65.0°C
11:14:51: 1800MHz  3.98  56%   7%  46%   0%   1%   1% 66.9°C
11:14:56: 1800MHz  3.90  56%   7%  46%   0%   1%   1% 66.2°C
11:15:01: 1800MHz  3.91  56%   7%  46%   0%   1%   1% 65.4°C
11:15:06: 1800MHz  3.83  56%   7%  46%   0%   1%   1% 66.9°C
11:15:11: 1800MHz  3.77  56%   7%  46%   0%   1%   1% 65.4°C
11:15:16: 1800MHz  3.63  56%   7%  46%   0%   1%   1% 66.5°C
11:15:21: 1800MHz  3.42  56%   7%  46%   0%   1%   1% 67.7°C
Time        CPU    load %cpu %sys %usr %nice %io %irq   CPU
11:15:27: 1800MHz  3.46  57%   7%  46%   0%   1%   1% 65.4°C
11:15:32: 1800MHz  3.19  57%   7%  46%   0%   1%   1% 65.8°C
11:15:37: 1800MHz  3.01  57%   7%  46%   0%   1%   1% 67.3°C
11:15:42: 1800MHz  2.93  57%   7%  46%   0%   1%   1% 65.4°C
11:15:47: 1800MHz  2.77  57%   7%  46%   0%   1%   1% 66.2°C
11:15:52: 1800MHz  2.63  57%   7%  46%   0%   1%   1% 65.8°C
11:15:57: 1800MHz  2.74  57%   7%  46%   0%   1%   1% 67.3°C
11:16:02: 1800MHz  2.68  57%   7%  46%   0%   1%   1% 67.3°C
11:16:07: 1800MHz  2.71  57%   7%  46%   0%   1%   1% 68.1°C
11:16:12: 1800MHz  2.57  57%   7%  46%   0%   1%   1% 67.7°C
11:16:17: 1800MHz  2.61  57%   7%  46%   0%   1%   1% 67.3°C
11:16:22: 1800MHz  2.48  57%   7%  46%   0%   1%   1% 66.9°C
11:16:27: 1800MHz  2.36  57%   7%  46%   0%   1%   1% 67.3°C
11:16:32: 1800MHz  2.41  57%   7%  46%   0%   1%   1% 67.3°C
11:16:38: 1800MHz  2.30  57%   7%  46%   0%   1%   1% 66.9°C
Time        CPU    load %cpu %sys %usr %nice %io %irq   CPU
11:16:43: 1800MHz  2.27  57%   7%  46%   0%   1%   1% 67.3°C
11:16:48: 1800MHz  2.41  57%   7%  46%   0%   1%   1% 67.3°C
11:16:53: 1800MHz  2.38  57%   7%  46%   0%   1%   1% 67.3°C
11:16:58: 1800MHz  2.43  57%   7%  46%   0%   1%   1% 66.5°C
11:17:03: 1800MHz  2.39  57%   7%  46%   0%   1%   1% 67.3°C
11:17:08: 1800MHz  2.36  57%   7%  46%   0%   1%   1% 68.5°C
11:17:13: 1800MHz  2.25  57%   7%  46%   0%   1%   1% 67.7°C
11:17:18: 1800MHz  2.31  57%   7%  46%   0%   1%   1% 68.5°C
11:17:23: 1800MHz  2.45  57%   7%  46%   0%   1%   1% 68.5°C
11:17:28: 1800MHz  2.65  57%   7%  46%   0%   1%   1% 68.1°C
11:17:34: 1800MHz  3.00  57%   7%  46%   0%   1%   1% 67.3°C
11:17:39: 1800MHz  3.00  57%   7%  46%   0%   1%   1% 67.3°C
11:17:44: 1800MHz  3.32  57%   7%  46%   0%   1%   1% 66.2°C
11:17:49: 1800MHz  3.38  57%   7%  46%   0%   1%   1% 66.9°C
11:17:54: 1800MHz  3.51  57%   7%  46%   0%   0%   1% 66.5°C
Time        CPU    load %cpu %sys %usr %nice %io %irq   CPU
11:17:59: 1800MHz  3.47  57%   7%  46%   0%   0%   1% 66.9°C
11:18:04: 1800MHz  3.75  57%   7%  46%   0%   0%   1% 68.5°C
11:18:09: 1800MHz  3.53  57%   7%  46%   0%   0%   1% 67.7°C
11:18:14: 1800MHz  3.65  57%   7%  46%   0%   0%   1% 68.5°C
11:18:19: 1800MHz  3.75  57%   7%  46%   0%   0%   1% 68.5°C
11:18:24: 1800MHz  4.10  57%   7%  46%   0%   0%   1% 68.5°C
11:18:29: 1800MHz  3.93  57%   7%  46%   0%   0%   1% 68.5°C
11:18:35: 1800MHz  4.17  57%   7%  46%   0%   0%   1% 67.7°C
11:18:40: 1800MHz  4.00  57%   7%  46%   0%   0%   1% 68.5°C
11:18:45: 1800MHz  3.92  57%   7%  46%   0%   0%   1% 68.1°C
11:18:50: 1800MHz  3.68  57%   7%  46%   0%   0%   1% 68.5°C
11:18:55: 1800MHz  3.55  57%   7%  46%   0%   0%   1% 68.1°C
11:19:00: 1800MHz  3.43  57%   7%  46%   0%   0%   1% 68.5°C
11:19:05: 1800MHz  3.29  57%   7%  46%   0%   0%   1% 69.2°C
11:19:10: 1800MHz  3.58  57%   7%  46%   0%   0%   1% 69.6°C
Time        CPU    load %cpu %sys %usr %nice %io %irq   CPU
11:19:15: 1800MHz  3.70  57%   7%  46%   0%   0%   1% 68.5°C
11:19:20: 1800MHz  3.64  57%   7%  46%   0%   0%   1% 68.5°C
11:19:25: 1800MHz  3.91  57%   7%  46%   0%   0%   1% 69.2°C
11:19:30: 1800MHz  3.84  57%   7%  46%   0%   0%   1% 68.8°C
11:19:36: 1800MHz  3.61  57%   7%  46%   0%   0%   1% 68.8°C
11:19:41: 1800MHz  3.56  57%   7%  46%   0%   0%   1% 69.2°C
11:19:46: 1800MHz  3.52  57%   7%  46%   0%   0%   1% 68.5°C
11:19:51: 1800MHz  3.47  57%   7%  46%   0%   0%   1% 68.8°C
11:19:56: 1800MHz  3.68  57%   7%  46%   0%   0%   1% 69.6°C
11:20:01: 1800MHz  3.78  57%   7%  46%   0%   0%   1% 68.8°C
11:20:06: 1800MHz  3.72  57%   7%  46%   0%   0%   1% 69.2°C
11:20:11: 1800MHz  3.74  57%   7%  46%   0%   0%   1% 68.5°C
11:20:16: 1800MHz  3.60  57%   7%  46%   0%   0%   1% 69.6°C
11:20:21: 1800MHz  3.80  57%   7%  46%   0%   0%   1% 67.3°C
11:20:26: 1800MHz  3.73  57%   7%  46%   0%   0%   1% 67.7°C
Time        CPU    load %cpu %sys %usr %nice %io %irq   CPU
11:20:31: 1800MHz  3.75  57%   7%  46%   0%   0%   1% 67.7°C
11:20:37: 1800MHz  3.69  57%   7%  46%   0%   0%   1% 68.8°C
11:20:42: 1800MHz  3.72  57%   7%  46%   0%   0%   1% 68.5°C
11:20:47: 1800MHz  3.74  57%   7%  46%   0%   0%   1% 68.8°C
11:20:52: 1800MHz  4.00  57%   7%  46%   0%   0%   1% 70.0°C
11:20:57: 1704MHz  3.92  57%   7%  46%   0%   0%   1% 69.2°C
11:21:02: 1704MHz  4.17  57%   7%  46%   0%   0%   1% 69.6°C
11:21:07: 1704MHz  4.07  57%   7%  46%   0%   0%   1% 69.2°C
11:21:12: 1704MHz  3.91  57%   7%  46%   0%   0%   1% 69.6°C
11:21:17: 1704MHz  3.83  57%   7%  46%   0%   0%   1% 69.2°C
11:21:22: 1704MHz  3.93  57%   7%  46%   0%   0%   1% 69.6°C
11:21:27: 1704MHz  3.85  57%   7%  47%   0%   0%   1% 68.1°C
11:21:32: 1704MHz  3.87  57%   7%  47%   0%   0%   1% 68.1°C
11:21:37: 1704MHz  3.80  57%   7%  47%   0%   0%   1% 68.8°C
11:21:43: 1704MHz  3.65  57%   7%  47%   0%   0%   1% 69.6°C
Time        CPU    load %cpu %sys %usr %nice %io %irq   CPU
11:21:48: 1704MHz  3.44  57%   7%  47%   0%   0%   1% 68.5°C
11:21:53: 1704MHz  3.64  57%   7%  47%   0%   0%   1% 69.6°C
11:21:58: 1704MHz  3.43  57%   7%  47%   0%   0%   1% 68.8°C
11:22:03: 1704MHz  3.48  57%   7%  47%   0%   0%   1% 70.0°C
11:22:08: 1704MHz  3.28  57%   7%  47%   0%   0%   1% 68.5°C
11:22:13: 1704MHz  3.10  57%   7%  47%   0%   0%   1% 67.3°C
11:22:18: 1704MHz  2.93  57%   7%  47%   0%   0%   1% 70.0°C
11:22:23: 1704MHz  2.85  57%   7%  47%   0%   0%   1% 68.5°C
11:22:28: 1512MHz  2.87  57%   7%  46%   0%   0%   1% 65.8°C
11:22:33: 1800MHz  3.04  57%   7%  46%   0%   1%   1% 66.5°C
11:22:38: 1704MHz  3.11  57%   7%  46%   0%   1%   1% 65.4°C
11:22:43: 1608MHz  3.10  56%   7%  46%   0%   1%   1% 65.0°C
11:22:48: 1608MHz  3.18  56%   7%  46%   0%   1%   1% 64.2°C
11:22:54: 1608MHz  3.16  56%   7%  46%   0%   1%   1% 64.6°C
11:22:59: 1512MHz  3.15  56%   7%  45%   0%   1%   1% 61.7°C
Time        CPU    load %cpu %sys %usr %nice %io %irq   CPU
11:23:04: 1608MHz  3.30  56%   7%  45%   0%   1%   1% 62.1°C
11:23:09: 1512MHz  3.27  56%   7%  45%   0%   1%   1% 62.1°C
11:23:14: 1512MHz  3.25  56%   6%  45%   0%   2%   1% 60.0°C
11:23:19: 1512MHz  3.47  56%   6%  45%   0%   2%   1% 60.4°C
11:23:24: 1512MHz  3.43  56%   6%  45%   0%   2%   1% 60.0°C
11:23:29: 1512MHz  3.40  56%   6%  45%   0%   2%   1% 60.4°C
11:23:34: 1800MHz  3.45  56%   6%  44%   0%   2%   1% 60.0°C
11:23:39: 1704MHz  3.41  55%   6%  44%   0%   2%   1% 60.0°C
11:23:44: 1704MHz  3.38  55%   6%  44%   0%   2%   1% 60.0°C
11:23:49: 1608MHz  3.43  55%   6%  44%   0%   2%   1% 58.2°C
11:23:54: 1608MHz  3.39  55%   6%  44%   0%   2%   1% 59.1°C
11:23:59: 1608MHz  3.44  55%   6%  44%   0%   2%   1% 58.2°C
11:24:04: 1608MHz  3.41  55%   6%  43%   0%   3%   1% 57.7°C
11:24:09: 1512MHz  3.37  55%   6%  43%   0%   3%   1% 58.6°C
11:24:14: 1608MHz  3.34  55%   6%  43%   0%   3%   1% 57.7°C
Time        CPU    load %cpu %sys %usr %nice %io %irq   CPU
11:24:19: 1512MHz  3.32  55%   6%  43%   0%   3%   1% 58.6°C
11:24:24: 1512MHz  3.37  55%   6%  43%   0%   3%   1% 56.4°C
11:24:30: 1800MHz  3.58  55%   6%  43%   0%   3%   1% 59.5°C
11:24:35: 1800MHz  3.45  55%   6%  43%   0%   3%   1% 59.1°C
11:24:40: 1800MHz  3.42  55%   6%  43%   0%   3%   1% 61.7°C
11:24:45: 1800MHz  3.55  55%   6%  43%   0%   3%   1% 61.7°C
11:24:50: 1800MHz  3.42  55%   6%  43%   0%   3%   1% 62.5°C
11:24:55: 1800MHz  3.71  55%   6%  43%   0%   3%   1% 61.2°C
11:25:00: 1800MHz  3.73  55%   6%  43%   0%   3%   1% 62.9°C
11:25:05: 1800MHz  3.67  55%   6%  43%   0%   3%   1% 60.4°C
11:25:10: 1800MHz  3.86  55%   6%  43%   0%   3%   1% 64.6°C
11:25:15: 1800MHz  4.33  55%   6%  43%   0%   3%   1% 62.5°C
11:25:20: 1800MHz  4.46  55%   6%  43%   0%   4%   1% 63.3°C
11:25:25: 1800MHz  4.35  55%   6%  43%   0%   4%   1% 64.6°C
11:25:30: 1800MHz  4.48  55%   6%  43%   0%   4%   1% 65.0°C
Time        CPU    load %cpu %sys %usr %nice %io %irq   CPU
11:25:35: 1800MHz  4.28  55%   6%  43%   0%   4%   1% 65.4°C
11:25:40: 1800MHz  4.26  55%   6%  43%   0%   4%   1% 65.8°C
11:25:46: 1800MHz  4.08  55%   6%  43%   0%   4%   1% 63.3°C
11:25:51: 1800MHz  4.07  55%   6%  43%   0%   4%   1% 65.0°C
11:25:56: 1800MHz  3.90  55%   6%  43%   0%   4%   1% 65.8°C
11:26:01: 1800MHz  3.75  55%   6%  43%   0%   4%   1% 65.0°C
11:26:06: 1800MHz  3.77  55%   6%  43%   0%   4%   1% 65.4°C
11:26:11: 1800MHz  3.87  56%   6%  43%   0%   4%   1% 65.4°C
root@tinkerboard:~# iostat 
Linux 4.13.0-rockchip (tinkerboard) 	09/20/2017 	_armv7l_	(4 CPU)

avg-cpu:  %user   %nice %system %iowait  %steal   %idle
          43.26    0.00    8.27    4.48    0.00   43.98

Device:            tps    kB_read/s    kB_wrtn/s    kB_read    kB_wrtn
mmcblk0           5.58       212.50        13.92     208569      13660

 

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Some measurements:

 

PSU 3.2A, powered via GPIO (MiQi), kernel 4.13.2

http://sprunge.us/VVNZ

 

Voltage at PSU = 5.05V (idle or full), at board 4.95 - 4.75V (at full load), power draw spikes max. 2.2A, idle 0.7A

 

PSU limited to exactly 2.00A. Sometimes crash already at boot time but certainly at starting stress test ... 

 

Moved PSU back to 3.2A and powering via 30cm long quality micro USB cable with only two thick leads. I don't have the option to plug here some other cables. In a short test, I could not crash the board but find out that it's easy to get to the power off due to high temperature. At least with my MiQi which has some 3rd party badly glued heatsink.

[  136.543819] thermal thermal_zone0: critical temperature reached(90 C),shutting down
Spoiler

root@miqi:~# armbianmonitor -m
Stop monitoring using [ctrl]-[c]
Time        CPU    load %cpu %sys %usr %nice %io %irq   CPU
17:03:54:  816MHz  0.45  12%   4%   4%   0%   3%   0% 54.2°C
17:03:59: 1800MHz  0.41  11%   4%   4%   0%   3%   0% 59.5°C
17:04:04: 1800MHz  3.10  20%   5%  11%   0%   2%   0% 72.5°C
17:04:09: 1800MHz  5.58  27%   6%  18%   0%   2%   0% 76.9°C
17:04:14: 1800MHz  7.85  32%   7%  23%   0%   2%   0% 80.4°C
17:04:19: 1608MHz  9.95  37%   8%  27%   0%   2%   0% 81.5°C
17:04:24: 1608MHz 11.87  42%   8%  31%   0%   2%   0% 82.3°C
17:04:29: 1800MHz 13.65  45%   9%  34%   0%   1%   0% 86.5°C
17:04:34: 1800MHz 15.28  49%   9%  37%   0%   1%   0% 86.5°C
17:04:35: 1512MHz 16.78  52%  10%  40%   0%   1%   0% 83.1°C
17:04:40: 1512MHz 18.16  54%  10%  42%   0%   1%   0% 81.5°C
17:04:45: 1416MHz 19.42  57%  11%  44%   0%   1%   0% 79.2°C
17:04:50: 1416MHz 20.59  59%  11%  46%   0%   1%   0% 77.7°C
17:04:55: 1008MHz 21.67  61%  11%  47%   0%   1%   0% 74.6°C
Time        CPU    load %cpu %sys %usr %nice %io %irq   CPU
17:05:00: 1608MHz 22.65  62%  11%  49%   0%   1%   0% 77.3°C
17:05:05: 1512MHz 23.64  64%  12%  50%   0%   1%   0% 78.8°C
17:05:10: 1608MHz 24.47  65%  12%  52%   0%   1%   0% 78.5°C
17:05:15: 1704MHz 25.23  67%  12%  53%   0%   1%   0% 83.5°C
17:05:20: 1800MHz 25.94  68%  12%  54%   0%   1%   0% 85.8°C

 

 


 

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I was thinking about thermal protection, but measured temperatures (and with not-so-bad infrared thermometer) are on 50-60°C in the hottest part of board.

Now, i run test on forced cooled case, same results, so temperature maybe not an cause of this behaviour.

 

I noticed, prior to system crash, system slow down to hell (and declared cpu frequency doesn't change at all), maybe something about massive interrupts or process queue issues?

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I have started my "transmission-board" with: Armbian_5.32.170724_Tinkerboard_Ubuntu_xenial_next_4.12.3_desktop.img and did all upgrades as offered currently at:

Linux tinkerboard 4.13.2-rockchip #43 SMP PREEMPT Sun Sep 17

 

I sometimes remove the SDcard to copy the files to other computers - and on the next reboot it will start (red light) and die. I unplug, power it again and it runs. I use this IKEA PSU and I am not sure if it matters on which of the 3 port I power it or not. But when it runs, it works like a charm :wub:

Little load I have to admit: System load:   0.03 0.24 0.24   Up time:       10 min  - no cooler attached - chip feels around 50°C when I touch it.

 

It didn't make sense to me to build something up below 4.12.3 because the reboot was not working before.

Edited by Tido
temperature

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@Igor I'll look at the thermals, mine hit 74 with my large heat sink (it should be throttling at 70), so I'm going to guess there may have been more than just the cooling nodes changed in 4.13, I didn't check the polling speed., For example.

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Cancelling this test because there are others at the moment as well...  :-/

 

root@tinkerboard:~# uptime
 03:20:38 up 1 day, 54 min,  1 user,  load average: 2.53, 2.14, 1.91
root@tinkerboard:~# uname -a
Linux tinkerboard 4.12.0-rockchip #9 SMP PREEMPT Fri Jun 23 20:40:07 CEST 2017 armv7l armv7l armv7l GNU/Linux

Well, it didn't say that was the kernel when I updated.  so I guess I'll be repeating this...

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1 minute ago, marcopete87 said:

Tried also with asus debian image, same issues.

Maybe hardware issue?

 

That would be my expectation then, considering the evidence.  Check and see if there was any ASUS support agreement

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