POV-Ray : Newsgroups : povray.unofficial.patches : intermittent crash Server Time
2 Sep 2024 04:17:14 EDT (-0400)
  intermittent crash (Message 1 to 6 of 6)  
From: D  H  Miller
Subject: intermittent crash
Date: 2 Jul 2000 12:31:15
Message: <395f6e53$1@news.povray.org>
Here's an interesting problem. I ran this scene today with a clock starting
at 0.1 and ending at 1 and a total of 10 frames. The scene ran fine through
all ten frames. I then changed the final frame to 150, and the scene crashed
MegaPOV 5.0 after the 11th frame. Then I tried to run it with only 10 frames
and it crashes after 6.
After rebooting, it crashed after 1 completed frame of a 10-frame render!
Very odd
behavior! Any thoughts or comments would be appreciated.
Thanks,
D.

#version unofficial MegaPov 0.4;
#include "textures.inc"
#declare R=1.0; file://1.1

camera { location  <0, -1, -10> look_at <0, 1, 0> }    // angle 40

sky_sphere { pigment {
    gradient y
    color_map { [0.0 color blue 0.6] [1.0 color rgb 1] }
  }
}

light_source {<100,200,-100> colour rgb 1}
light_source {<-100,-200,-100> colour rgb 0.5}
plane {<0,1,0>,-5   texture   {DMFLightOak}
 finish { roughness .0001
  } }

#declare F1 = function {u*v*sin(15*v)}
#declare F2 = function {u*v*cos(15*v)}

#declare Rod = union{

parametric {
  function F1(1,2,3),   v,  F2(v,v,v)
      <0,-1>,<1,1>
      <-R,-R,-R>,<R,R,R>
  accuracy 0.003
  precompute 18, [x,y,z]
  pigment {rgb 0.9}
  finish {phong 0.5 phong_size 10}
  no_shadow

 scale <.75,5,.75>   } }

object {Rod translate <0,-2+(clock * 10),0> }
object {Rod translate <2*clock,-4+(clock * 10),2*clock>}
object {Rod translate <-4*clock,-5+(clock * 10),4*clock>}
object {Rod translate <6*clock,-6+(clock * 10),6*clock> }
object {Rod translate <-8*clock,-7+(clock * 10),8*clock> }
object {Rod translate <10*clock,-8+(clock * 10),10*clock>  }
object {Rod translate <-12*clock,-9+(clock * 10),12*clock> }
object {Rod translate <14*clock,-10+(clock * 10),14*clock> }
object {Rod translate <-16*clock,-11+(clock * 10),16*clock> }
object {Rod translate <18*clock,-12+(clock * 10),18*clock> }
object {Rod translate <14*clock,-10+(clock * 10),20*clock> }
object {Rod translate <-12*clock,-9+(clock * 10),22*clock> }
object {Rod translate <10*clock,-8+(clock * 10),24*clock> }
object {Rod translate <-8*clock,-7+(clock * 10),26*clock> }


--
dhm### [at] mediaonenet
http://www.casdn.neu.edu/~dmiller


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From: Bob Hughes
Subject: Re: intermittent crash
Date: 2 Jul 2000 14:28:48
Message: <395f89e0@news.povray.org>
Is it hot there where the computer is?  I'm getting erroneous OS problems I'm
almost certain having to do with a indoor temperature of 80+ degrees
Fahrenheit.  83F (about 28C) on indoor digital thermometer a short time ago
and had a BSOD barrage before I turned the A/C down.  I like the warm temps
though, as long as I don't move too much  :-)
Anyway, heat of CPU can play a role sometimes I'm fairly certain.

Bob

"D. H. Miller" <dhm### [at] mediaonenet> wrote in message
news:395f6e53$1@news.povray.org...
| After rebooting, it crashed after 1 completed frame of a 10-frame render!
| Very odd behavior! Any thoughts or comments would be appreciated.


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From: Bob Hughes
Subject: Re: intermittent crash
Date: 2 Jul 2000 14:35:19
Message: <395f8b67@news.povray.org>
Well, forget that about temp of CPU stuff I think.  It errored out in MegaPov
0.5a here while parsing frame 7 of a 10 frame sequence going from 0 to 9.
Specific error:

MEGAPOV caused an invalid page fault in
module <unknown> at 0000:00000000.
Registers:
EAX=00000000 CS=016f EIP=00000000 EFLGS=00010206
EBX=00939d18 SS=0177 ESP=03c6f754 EBP=03c6f78c
ECX=00939cf5 DS=0177 ESI=0093e8d4 FS=4d1f
EDX=3ff00000 ES=0177 EDI=03c6f7f8 GS=0000
Bytes at CS:EIP:
00 00 00 00 00 00 00 00 16 00 85 0c 65 04 70 00
Stack dump:
0041bb46 03c6f7f8 3ff00000 0051f4a0 00000001 00429d50 0049a381 00000020
004ff170 0049722d 005029e0 0049657a 000000f1 00000020 0093dcc8 00417b0f

"module <unknown> at 0000:00000000" even looks ominous.

Bob


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From: D  H  Miller
Subject: Re: intermittent crash
Date: 2 Jul 2000 15:24:13
Message: <395f96dd@news.povray.org>
Thanks Bob. So where would you go from here?
d.


--
dhm### [at] mediaonenet
http://www.casdn.neu.edu/~dmiller
Bob Hughes <per### [at] aolcom?subject=PoV-News:> wrote in message
news:395f8b67@news.povray.org...
> Well, forget that about temp of CPU stuff I think.  It errored out in
MegaPov
> 0.5a here while parsing frame 7 of a 10 frame sequence going from 0 to 9.
> Specific error:
>
> MEGAPOV caused an invalid page fault in
> module <unknown> at 0000:00000000.
> Registers:
> EAX=00000000 CS=016f EIP=00000000 EFLGS=00010206
> EBX=00939d18 SS=0177 ESP=03c6f754 EBP=03c6f78c
> ECX=00939cf5 DS=0177 ESI=0093e8d4 FS=4d1f
> EDX=3ff00000 ES=0177 EDI=03c6f7f8 GS=0000
> Bytes at CS:EIP:
> 00 00 00 00 00 00 00 00 16 00 85 0c 65 04 70 00
> Stack dump:
> 0041bb46 03c6f7f8 3ff00000 0051f4a0 00000001 00429d50 0049a381 00000020
> 004ff170 0049722d 005029e0 0049657a 000000f1 00000020 0093dcc8 00417b0f
>
> "module <unknown> at 0000:00000000" even looks ominous.
>
> Bob
>
>
>


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From: Bob Hughes
Subject: Re: intermittent crash
Date: 2 Jul 2000 22:04:33
Message: <395ff4b1$1@news.povray.org>
"D. H. Miller" <dhm### [at] mediaonenet> wrote in message
news:395f96dd@news.povray.org...
| Thanks Bob. So where would you go from here?

Well, I managed a ten frame render to go okay by just changing accuracy to 10
times what it had been, which was 0.003 to 0.03.  What actually went wrong
before is nothing I could answer.

Bob


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From: Mark Wagner
Subject: Re: intermittent crash
Date: 3 Jul 2000 01:57:11
Message: <39602b37$1@news.povray.org>
D. H. Miller wrote in message <395f96dd@news.povray.org>...
>Thanks Bob. So where would you go from here?


I'd look through the source code for the parametric object to see where it
is dereferencing a null pointer.

Mark


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