Application freeze under Linux if system time is changed

my simple application freeze if I change the system time and decrease it by 1 hour.
no errors, no crash, nothing in my log.. only freeze.
cpu is 0% but I cannot click nor close app window.
it's very urgent!
next week every machine change automatically system time due to daylights saving time!

thanks

 

other experiments.
a simple project with some GUI labels freeze.
it freeze only if I take my time 1 hour before now, not after!

 

What OS?

 

on my VM with Ubuntu 12, i have Always the problem.
on a physical machine with XUbuntu, i have the problem only if I have the code inside an external DLL

Create a new project.
insert this code (decalring variables before..):

void OnGUI()
{

GUILayout.BeginArea(new Rect(10, 30, 100, 20));
GUILayout.BeginHorizontal();
GUILayout.Label("Server dati", style);
GUILayout.EndHorizontal();
GUILayout.EndArea();

GUILayout.BeginArea(new Rect(10, 50, 100, 20));
GUILayout.BeginHorizontal();
GUILayout.Label("Server files audio", style);
GUILayout.EndHorizontal();
GUILayout.EndArea();

GUILayout.BeginArea(new Rect(10, 70, 100, 20));
GUILayout.BeginHorizontal();
GUILayout.Label("Login", style);
GUILayout.EndHorizontal();
GUILayout.EndArea();

GUILayout.BeginArea(new Rect(10, 90, 100, 20));
GUILayout.BeginHorizontal();
GUILayout.Label("Password", style);
GUILayout.EndHorizontal();
GUILayout.EndArea();

serverDati = GUI.TextField(new Rect(120, 28, 250, 20), serverDati);
serverFiles = GUI.TextField(new Rect(120, 48, 250, 20), serverFiles);
login = GUI.TextField(new Rect(120, 68, 250, 20), login);
password = GUI.PasswordField(new Rect(120, 88, 250, 20), password, "*"[0]);


if (GUI.Button(new Rect(390, 88, 100, 20), "LogIn"))
{

}

}


the project build for Linux x86 under my VM, freeze if I change system time decreasing just 1 second!

on phisical machine I don't have this problem.

 

What happens if you close Unity, change the time and restart Unity?

 

Hm it seems that this is a problem with the vm have you searched specific for time change problems with you vm software.

 

It's not a VM problem because i have the same error on a physical hw.

I'm not using unity in linux but a small test project build for linux

 

oh sorry then i have misunderstood the last line of your post

 

Hopefully users will not change system time, just leave the system to report a different timezone.

 

Hi Dave,
thanks for your time.

i haven't tested my SW with 4.6b or 5.0b because i'm working only with last stable and complete version of unity.
i've found this problem from version 4.3.x

the code posted in this forum it's only a simple example and it freeze if you run the build in a vmware virtual machine.
it doesn't freeze on a physical machine.

the UPVC project freeze with both VMs and physical hardware.

i've tested my full project on different hardware and 3 build of ubuntu: 12, 13 and xubuntu.
the same result on each build.

i've made a simple project with the code posted before.
I can send you the zipped folder if you want.

please send me a private message.
otherwise I could upload the file here.

let me know.

thanks again for your support

Emiliano

 

my project needs to synch the local time with a remote server time.
..and.. i think a player cannot stop playing because his PC is setting a wrong system time.
isn't it?

 

hi,
the strange things is:
- only the code in my loader project (the UPVC project i've sent you) without the asset bundle, no freeze.
- only the code in the asset bundle compiled as a separate build, no freeze
- the loader that execute the code in the asset bundle, freeze

but.. the loader project has only few lines of code that load the asset bundle and runs all the application logic.
all the code is in the asset budle.
so.. why it doesn't freeze if I compile a build with the code in the asset bundle?
the application runs and it's fully functional.
the loader is necessary for autoupdate.
during Runtime I download a new assetbundle and send a message to the load application that dispose the running bundle and load the new one, so the application is the new version.

I can't install a new clean version of Ubuntu because I have about 500 running installation.
i'm making experiments with a physical machine with xubuntu 14.04 and a VM with Ubuntu 12.10, but almost all installation are running with xubuntu 12.04

another strange thing..
the project uploaded in this forum freeze on my VMs but not on my physical machine.
i think the problem is the user interface, because this project has no assetbundle or code but only few textboxes.

what do you think about?

 

Hi Dave,
any news for me?
have you tried the uploaded project?
(I forgot to save file in the previous post..)

 

thanks Dave.
so.. how can I send you the sources? I cannot publish all files here because the SW is protected by copyright..
can I send them with a PM or something else?

thanks

Emiliano

 

I have already sent the project loader using fogbuz.
I cannot send the code in assetbundle because I compile the bundle using shell.
I can send you a zipped file with all the code in that folder and instructions.

 

i have tried with the final 4.6 release but it freeze.
i've also used the test project "test_orario" because the syntoms are the same, but it freeze only on a VM.
cleaning the prject step by step we finally have a running version.
i think there is something with the user interface.
maybe when the time is changed the player reset/restart the UI or something else..
the running version seems to have a little delay and loose the focus.
maybe it could be interesting for you.
i've opened a new fogbuz case
Case 651520

let me know

thanks

 

Hi Dave!
i've discovered something very interesting!
you can replicate it on full project and "test_orario".
when the application freeze, if you wait the same amount of time you have subtracted, the application restart to work.
so.. if you sibtract 1 minute, you have to wait 1 minute and it runs again.
so.. it's not a problem of my code but something connected with Linux/unity events, maybe awake or start event.
let me know it you can replicate.

thanks

 

bump!

 

You just hit reply to the email that tells you the case number and add a file to it.

 

hi,
thank you for your answers.
tomorrow i'll send you all the code included in asset bundle.
about opened tickets, the final product must run on a real machine, so the first bug is more important, but..
I've made a third sample project including in the asset bundle only the code that create the UI and I have the same result like the second one (651520).
the ticket 651520 is about a very simple project, and I think it contains the root of the real problem, so maybe you could start with the ticket 651520.

i'll send you the asset bundle code, anyway.. so you have all elements to investigate.
(tomorrow, because it's midnight in italy)

thanks

Emiliano

 

yes, please.
I'm ready to send you the asset bundle.
how can I share you a private link?

 

mail sent.
thanks

 

GREAT!!
let me know

 

hi,
any news about 651520 ticket?
thanks