Unpredictable hard ...
 
Share:
Notifications
Clear all

31 July 2020 - Comet Registration video tutorial using APP 1.083-beta1 released.

30 July 2020 - APP 1.083-beta1 has been released introducing Comet processing! This 1st beta has comet registration. The stable release will also include special comet integration modes.

9 July 2020 - New and updated video tutorial using APP 1.081: Complete LRGB Tutorial of NGC292, The Small Magellanic Cloud by Christian Sasse (iTelescope.net) and Mabula Haverkamp

2019 September: Astro Pixel Processor and iTelescope.net celebrate a new Partnership!

Unpredictable hard crashes of APP on Mac  

  RSS

(@mario-pinto)
Brown Dwarf Customer
Joined: 2 years ago
Posts: 9
August 12, 2020 10:15  

FYI (no hints on the problem)

I am using APP 1.082 on iMac (see below). At unpredictable points during processing, suddenly the Mac is black. Completely dead, with a basic warning on the screen, and no information about the point of crashing or information can be sent to Apple. Restarting requires complete reboot. No other program crashes this bad. Must be unprotected writing outside of allowed memory areas or so. It happened the fourth or fifth time in three months. Otherwise the Mac is running fine, so must be APP.

Screenshot 2020 08 12 at 10.10.52

ReplyQuote
Topic Tags
(@vincent-mod)
Quasar Admin
Joined: 3 years ago
Posts: 2385
August 13, 2020 10:09  

Mmm, this I’ve never heard before so my immediate suspicion is that there also might be an issue with your system. Of course you mention you only see this with APP, but did you try other software that taxes your CPU and memory so much as APP does?


ReplyQuote
(@mario-pinto)
Brown Dwarf Customer
Joined: 2 years ago
Posts: 9
August 13, 2020 12:28  

I got to be careful hear not making any statement about the cause of the crash, since it crashes so severely there is no trace of information pointing at a possible cause. On the other hand it only has happened with APP on and with recent versions (for about half a year, now). Therefore it’s was FYI until you have more cases. 


(@vincent-mod)
Quasar Admin
Joined: 3 years ago
Posts: 2385
August 13, 2020 16:35  

Thanks a lot for that, I think there are some stress tests also for the Mac. You may try that to see if it's a system issue or not.


ReplyQuote
(@wvreeven)
Neutron Star Customer
Joined: 2 years ago
Posts: 231
August 13, 2020 17:30  

I use the latest version of APP (currently 1.083-beta1) on MacOS Catalina and never experience any crashes. How much memory of the 16 Mb have you allocated for APP?


ReplyQuote
(@mario-pinto)
Brown Dwarf Customer
Joined: 2 years ago
Posts: 9
August 14, 2020 07:48  

Thanks (wvreeven), that is good to know that APP should not crash on the Mac. By default I have 8 GB (have of the memory) allocated to APP. Should that not be sufficient? Could it be that I have too many other programs open (Office 365)? I still think a hard crash (black screen, rebooting Mac) must not occur. Best Regards, Mario

Screenshot 2020 08 14 at 07.45.53

ReplyQuote
(@mario-pinto)
Brown Dwarf Customer
Joined: 2 years ago
Posts: 9
August 14, 2020 09:16  

 

Some additional analysis indeed show that memory management on the Mac can be the cause of a hard crash when memory is tight. Any other program (than APP) can then crash the computer, although it should be preceded by warnings or otherwise.

Especially Safari can use up a lot of cashed data (see screen shot below) and cause allocation of 5 GB or more easily.

Then, when Safari is quit, memory is released again.

 

Remedy when using APP: quit other programs when not needed and start with a green (top left) memory allocation to APP.

Screenshot 2020 08 14 at 09.09.33
Screenshot 2020 08 14 at 09.09.24

 After Safari is quit:

Screenshot 2020 08 14 at 09.09.48

 

Thanks for your support and suggestions, Vincent and wvreeven!


(@herbert)
Hydrogen Atom Customer
Joined: 3 weeks ago
Posts: 2
September 19, 2020 22:07  

Good evening, I need help from the professionals ..... I downloaded the progi to test it and installed it. I looked through all of Frank's videos zick times, well, my problem I load Lights, Flats, Darks Bias into the program as normal,
but as soon as I want to do something (double click on picture or star calibration, etc.) the whole thing crashes immediately give some advice or help thank you


ReplyQuote
(@vincent-mod)
Quasar Admin
Joined: 3 years ago
Posts: 2385
September 20, 2020 11:47  

@herbert so does APP show any crash information or does it crash without any notice? The times I see that happen is usually because of a general system issue, like you can see above as well with resources being extremely low or a stability issue.


ReplyQuote
(@herbert)
Hydrogen Atom Customer
Joined: 3 weeks ago
Posts: 2
September 20, 2020 15:32  

@Vincent....NO the APP does not show any rental, as I said, you can load all images into Raw, but if you try to do something afterwards, the whole program crashes immediately


ReplyQuote
(@vincent-mod)
Quasar Admin
Joined: 3 years ago
Posts: 2385
September 21, 2020 16:13  

Could you try launching it from a terminal/shell to see what message the system puts out?


ReplyQuote
Share: