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Bug: Access Violation in OneNormalSecond

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Bug: Access Violation in OneNormalSecond 19/12/2012 at 17:12 #39405
Forest Pines
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Hello!

A fun crash whilst trying to post a sticky note: an exception in OneNormalSecond causing a message box to pop up once per second.

The full message is:
Recursive bug report: Exception in OneNormalSecond:TRN (EAccessViolation: Access violation at address 00524C1F in module "Carlisle.exe". Read of address 00000000)

Looks like some sort of null pointer dereference. Here's a screenshot - annoyingly, a new message box was animating into life at the screenshot was taken making it a slight pain to read.


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Last edited: 19/12/2012 at 17:13 by Forest Pines
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Bug: Access Violation in OneNormalSecond 19/12/2012 at 18:38 #39408
TomOF
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Thanks for this. I've had a few similar issues reported recently. Very hard to tie down but the reported error message is usually the same.
I've been looking for a while after dealing with other bug fixes.

Suffice to say this is the major issue preventing a re-release. Apologies for any inconvenience caused.

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Bug: Access Violation in OneNormalSecond 19/12/2012 at 19:20 #39409
postal
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Problems have been reported with Lime Street (see this thread), generating a different error report but again tied up with sticky notes. Clive thought he might know what was causing that problem. Don't know whether there is any connection with this one.
“In life, there is always someone out there, who won’t like you, for whatever reason, don’t let the insecurities in their lives affect yours.” – Rashida Rowe
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Bug: Access Violation in OneNormalSecond 19/12/2012 at 22:08 #39417
clive
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Certainly looks like a null pointer dereference.

Are you able to reproduce it? Perhaps by going back to a saved game and trying the same thing again? I suspect it may be timing dependent.

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Bug: Access Violation in OneNormalSecond 20/12/2012 at 09:46 #39422
GoochyB
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I had the same a few times - I took to saving regularly to try to reproduce it, but it didn't happen at the same time or even as far as I could see on a consistent event the next time around. It stopped happening at all later on in the "day" - after mid-morning sim-time.

I don't think I had done anything specific with stickies when it triggered (although I suppose I might have been scrolling the screen with one moving/coming into view)

Last edited: 20/12/2012 at 09:47 by GoochyB
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Bug: Access Violation in OneNormalSecond 20/12/2012 at 20:51 #39449
Forest Pines
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525 posts
" said:
Certainly looks like a null pointer dereference.

Are you able to reproduce it? Perhaps by going back to a saved game and trying the same thing again? I suspect it may be timing dependent.
Unfortunately it was quite a while since I'd last saved, so replaying is unlikely to reproduce anything that is finickally timing-dependant because the game will probably be fairly different when it reaches that point. However I'll keep an eye out if it does come up again.

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Bug: Access Violation in OneNormalSecond 20/12/2012 at 23:46 #39453
Forest Pines
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I've now had it happen twice more, always within a few minutes of 5am sim time, but never at exactly the same time, and if it is the same event triggering it it's not in the area I'm concentrating on running at the time. It's not linked to sticky notes.
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Bug: Access Violation in OneNormalSecond 21/12/2012 at 00:48 #39456
Forest Pines
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Bah, forgot to attach the save!
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Bug: Access Violation in OneNormalSecond 21/12/2012 at 09:02 #39461
postal
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I can't remember it ever happening on a test version of the sim (although my memory could be fallible). Is there anything in the process of compiling a sim for release rather the developer sending out a test version that changes anything?

There is certainly something about the process for compiling a release version that changes things. As another example, I don't think I've ever had the problem of the splash screen hanging on a test version but I have to set the compatibility mode to W2000 to avoid this problem for a number of the released sims (including the latest batch of McSims from Peter).

“In life, there is always someone out there, who won’t like you, for whatever reason, don’t let the insecurities in their lives affect yours.” – Rashida Rowe
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Bug: Access Violation in OneNormalSecond 21/12/2012 at 12:45 #39470
TimTamToe
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" said:
I've now had it happen twice more, always within a few minutes of 5am sim time, but never at exactly the same time, and if it is the same event triggering it it's not in the area I'm concentrating on running at the time. It's not linked to sticky notes.

I remember getting the same report around 5am too - but forgot to get screen grabs at the time.

I like Forest Pines am not sure what was the trigger. If it happens again I'll screen grab / save etc

Gareth

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Bug: Access Violation in OneNormalSecond 21/12/2012 at 14:24 #39474
TomOF
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May I ask what OS you are running on?

Was there anything else unusual going on at the time?

I have never once managed to re-create this bug for myself, so I am trying to cover all scenarios.

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Bug: Access Violation in OneNormalSecond 21/12/2012 at 15:28 #39478
TimTamToe
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" said:
May I ask what OS you are running on?

Was there anything else unusual going on at the time?

I have never once managed to re-create this bug for myself, so I am trying to cover all scenarios.
windows 7 Tom. And I was using the 1980's TT with TORR on and conditional aspects on and max of 2 failures. I'm not sure if I was writing a sticky note or not at the time but I know Carlisle station area was busy at the time and pretty sure I was using shunt moves involving the shunt neck at Carlisle and sidings A & 1, 2.

I hope this helps you a bit.

Gareth

Last edited: 21/12/2012 at 15:29 by TimTamToe
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Bug: Access Violation in OneNormalSecond 21/12/2012 at 16:13 #39482
Forest Pines
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Same settings and OS here - and you can see from my screenshot there wasn't much else running on three PC at the time.
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Bug: Access Violation in OneNormalSecond 21/12/2012 at 16:40 #39485
clive
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Quote:
I can't remember it ever happening on a test version of the sim (although my memory could be fallible). Is there anything in the process of compiling a sim for release rather the developer sending out a test version that changes anything?
Yes, there is. But I don't think that's likely to be the cause of this. More likely it relies on a race condition in the code (that is, two things have to happen in just the right order and close enough together to tickle the bug).

Last edited: 21/12/2012 at 16:41 by clive
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Bug: Access Violation in OneNormalSecond 21/12/2012 at 16:41 #39486
clive
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" said:
May I ask what OS you are running on?

Was there anything else unusual going on at the time?

I have never once managed to re-create this bug for myself, so I am trying to cover all scenarios.
Understood. However, I strongly suspect that the problem is inside the code, so won't be affected by the OS version or what else is running.

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Bug: Access Violation in OneNormalSecond 21/12/2012 at 16:42 #39487
clive
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" said:

I remember getting the same report around 5am too - but forgot to get screen grabs at the time.

I like Forest Pines am not sure what was the trigger. If it happens again I'll screen grab / save etc

Gareth
For this specific problem, we don't need screen grabs. The exact text of the message might suffice. A save immediately after it happens might be useful.

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The following user said thank you: TimTamToe
Bug: Access Violation in OneNormalSecond 21/12/2012 at 23:18 #39509
Forest Pines
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Bah - now it's getting weird.

I came on today with the aim of reproducing the bug and trying to capture a save afterwards, if possible (the modal dialog once per second would make it tricky). However, it refused to run at all, claiming the system files weren't installed (they were). I uninstalled then reinstalled the system files - the same version of them - and now, I can't reproduct the bug!

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Bug: Access Violation in OneNormalSecond 22/12/2012 at 12:36 #39533
TimTamToe
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Hi guys

It occured again for me at 11pm (sim time) with the following error code

"Recursive bug report Exception in OneNormalSecond TRN (EAccess Violation: Access Violation at address 00524C1F in module Carlisle.exe read of address 00000000"

I have a save (attached) immediately after I'd cleared the pop up messages

Gareth

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Bug: Access Violation in OneNormalSecond 24/12/2012 at 16:46 #39631
Mynnyddog
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Hi Guys,

I too have had the same error message at 1616 sim time. I had just done a save before it happened and it has done each time I have started the sim from that save.

I noticed that immediately before the error message pops up the text on the sticky note I had is wiped (for CLST7 at Upperby through goods). It doesn't seem to have affected any of the sticky notes in this way as far I can tell.

Really great sim though so big thanks to all of you have put lots of hard work in.

Have a good Christmas one and all.

Dave

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Bug: Access Violation in OneNormalSecond 24/12/2012 at 19:50 #39636
TomOF
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Hi.
Please could you attach the save?

Cheers

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Bug: Access Violation in OneNormalSecond 25/12/2012 at 11:14 #39652
Mynnyddog
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Hi

I've attached the file as requested. Hope it helps.

Dave

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Bug: Access Violation in OneNormalSecond 03/12/2013 at 16:38 #52358
clive
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2781 posts
" said:
Hello!

A fun crash whilst trying to post a sticky note: an exception in OneNormalSecond causing a message box to pop up once per second.

The full message is:
Recursive bug report: Exception in OneNormalSecond:TRN (EAccessViolation: Access violation at address 00524C1F in module "Carlisle.exe". Read of address 00000000)

Looks like some sort of null pointer dereference.
I now have reason to suspect it's to do with trains leaving the sim or joining. If anyone's still seeing this problem, do you know if either of those were happening at the time? But I can't see why it would be specific to Carlisle.

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Bug: Access Violation in OneNormalSecond 03/12/2013 at 16:43 #52359
TomOF
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We no longer get this error on the Loader version being prepared for release.
It was always triggered when a certain train left the simulation but was very hard to recreate as certain trains had to be in certain places.

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