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by Shawn1913
Tue Jul 24, 2018 6:26 am
Forum: Troubleshooting
Topic: Get crash dump for .NET CORE application
Replies: 0
Views: 198

Get crash dump for .NET CORE application

I have an console application that just open 8 tcp connections for read and write, the data rate for each connection is about 200Byte/second, in most time it runs well until like 7 or 8 hours later ,it randomly crashes , I have attached the AppDomain.CurrentDomain.UnhandledException with logging but...
by Shawn1913
Tue Jul 03, 2018 7:13 am
Forum: Troubleshooting
Topic: Get the temperature of LAN Chip for P3B+
Replies: 15
Views: 1373

Re: Get the temperature of LAN Chip for P3B+

Since the Pi is apparently actually shutting down, I have no idea. Cannot think of a reason why that might happen. Have you any logs or possible symptoms? Power issues? Unlikely the power issue since my power adapter is from a famous brand with quality (but will still try another by your suggestion...
by Shawn1913
Tue Jul 03, 2018 12:01 am
Forum: Troubleshooting
Topic: Get the temperature of LAN Chip for P3B+
Replies: 15
Views: 1373

Re: Get the temperature of LAN Chip for P3B+

Since the Pi is apparently actually shutting down, I have no idea. Cannot think of a reason why that might happen. Have you any logs or possible symptoms? Power issues? Unlikely the power issue since my power adapter is from a famous brand with quality (but will still try another by your suggestion...
by Shawn1913
Mon Jul 02, 2018 11:05 am
Forum: Beginners
Topic: P3B+, Get the USB port name
Replies: 14
Views: 4268

P3B+, Get the USB port name

Hi all, I'm developing an application which communicating with many RS232-Communicable external devices, so I have to use a USB HUB to extend Pi's limited 4 USB ports, and then use USB-TO-RS232 converter to connect to external devices. My application can enumerates all available USB serial port whic...
by Shawn1913
Mon Jul 02, 2018 10:40 am
Forum: Troubleshooting
Topic: Pi3B+ automatically shutdown while the temperature is less than 65' C
Replies: 7
Views: 1040

Re: Pi3B+ automatically shutdown while the temperature is less than 65' C

MaxK1 wrote:
Sun Jul 01, 2018 7:33 am
Could it be a memory leak? Does anything show in the logs? (in /var/log/ )
could you more specify, what logs I should to check under /var/log/ since there're plenty?
by Shawn1913
Mon Jul 02, 2018 10:38 am
Forum: Troubleshooting
Topic: Get the temperature of LAN Chip for P3B+
Replies: 15
Views: 1373

Re: Get the temperature of LAN Chip for P3B+

OK, had a play with the IR camera on the ethernet chip whilst under a bit of load (copying from Samba share to SD card). Went from 54-55ºc to 55-56ºc, so not a huge rise. Hottest chip on the board though, although nowhere near any critical temperatures. thanks for the testing, so for my case, do yo...
by Shawn1913
Mon Jul 02, 2018 1:21 am
Forum: Troubleshooting
Topic: Get the temperature of LAN Chip for P3B+
Replies: 15
Views: 1373

Re: Get the temperature of LAN Chip for P3B+

If I remember, I'l try and get a IR image of the board under heavy network load tomorrow. Hey jamesh , I can't wait for you testing result! My case is: open 2 TCP connections to external device, send 5 messages(and will receive 5 response as well) in 1 seconds in each connection, and each message i...
by Shawn1913
Sun Jul 01, 2018 1:21 pm
Forum: Troubleshooting
Topic: Get the temperature of LAN Chip for P3B+
Replies: 15
Views: 1373

Get the temperature of LAN Chip for P3B+

Hi all, I had a post at https://www.raspberrypi.org/forums/viewtopic.php?f=28&t=217092 which is asking a case of P3B+ always shutdown with my application running for hours, and I've logged performance counter with command /opt/vc/bin/vcgencmd and top -n 1 along the test, I can see the temperature (<...
by Shawn1913
Sun Jul 01, 2018 10:29 am
Forum: Troubleshooting
Topic: Pi3B+ automatically shutdown while the temperature is less than 65' C
Replies: 7
Views: 1040

Re: Pi3B+ automatically shutdown while the temperature is less than 65' C

LTolledo wrote:
Sun Jul 01, 2018 5:41 am
Keep it cool then...

Provide/attach an appropriately sized heatsink

Test again....

If it still fails... provide even larger heatsink, or attach a fan

Test again....

Is there any place(system log) logged the over heating case? i actually suspect the LAN chip since its dead temp is 70.
by Shawn1913
Sat Jun 30, 2018 1:29 pm
Forum: Troubleshooting
Topic: Pi3B+ automatically shutdown while the temperature is less than 65' C
Replies: 7
Views: 1040

Pi3B+ automatically shutdown while the temperature is less than 65' C

Hi all, I'm using Raspbian Stretch with desktop which published at 2018 JUNE. I'm doing some performance testing with Pi3B+ by running my application, the application is just keep send/write data via TCP/IP and USB serial port to some devices. It all looks good at beginning hours (say 6 hours), but ...

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