Prime 95 25.7 and 25.8 crashes on my 233MMX.

M0CZY · 2008-12-11, 13:39

'Trial factoring to low limits' using version 25.7 or 25.8 doesn't work on my P233MMX machine.

My assignment was to factor M102962627 from 2^57 to 2^63.
After a minute, Prime 95 crashes, and disappears, and a box appears which says

"prime95.exe has generated errors and will be closed by Windows.
You will need to restart the program.
An error log is being created."

I have tried running the program several times, and it crashes every time.
I already had the same problem with version 25.7b3, so I upgraded to 25.8b2, but that has just the same problem.
Incidently, I tried running that assignment using version 24.14, without any problems.

No debug information is written to prime.log.
Drwtsn32.log has much to say, but unfortunately I don't understand any of it!

Code:

Application exception occurred:
        App:  (pid=884)
        When: 12/10/2008 @ 18:15:22.391
        Exception number: c0000005 (access violation)

*----> System Information <----*
        Computer Name: 54EF1CEBCBFF40A
        User Name: Administrator
        Number of Processors: 1
        Processor Type: x86 Family 5 Model 4 Stepping 3
        Windows 2000 Version: 5.0
        Current Build: 2195
        Service Pack: 4
        Current Type: Uniprocessor Free
        Registered Organization: 
        Registered Owner:  

*----> Task List <----*
   0 Idle.exe
   8 System.exe
 160 SMSS.exe
 188 CSRSS.exe
 208 WINLOGON.exe
 236 SERVICES.exe
 248 LSASS.exe
 428 svchost.exe
 456 spoolsv.exe
 488 svchost.exe
 532 jqs.exe
 568 regsvc.exe
 592 mstask.exe
 672 WinMgmt.exe
 704 svchost.exe
 780 explorer.exe
 736 mixer.exe
 896 jusched.exe
 904 WZQKPICK.exe
1128 svchost.exe
 884 prime95.exe
 296 DRWTSN32.exe
   0 _Total.exe

(00400000 - 0085F000) 
(77F80000 - 77FFC000) 
(75030000 - 75044000) 
(78000000 - 78045000) 
(7C570000 - 7C623000) 
(7C2D0000 - 7C335000) 
(77D30000 - 77DA8000) 
(75020000 - 75028000) 
(77570000 - 775A0000) 
(77E10000 - 77E79000) 
(77F40000 - 77F7F000) 
(76B30000 - 76B6E000) 
(70BD0000 - 70C35000) 
(71710000 - 71794000) 
(7CF30000 - 7D186000) 
(77800000 - 7781E000) 
(76620000 - 76631000) 
(681A0000 - 681A7000) 
(66740000 - 66747000) 
(69BF0000 - 69C0D000) 
(77950000 - 7797B000) 
(75150000 - 75160000) 
(77BF0000 - 77C01000) 
(77980000 - 779A4000) 
(75050000 - 75058000) 
(7CDC0000 - 7CE13000) 
(751C0000 - 751C6000) 
(7C340000 - 7C34F000) 
(7CE20000 - 7CF21000) 
(70200000 - 70295000) 
(7C740000 - 7C7CC000) 
(77430000 - 77441000) 
(779B0000 - 77A4B000) 
(774E0000 - 77514000) 
(774C0000 - 774D1000) 
(77530000 - 77552000) 
(77830000 - 7783E000) 
(7C0F0000 - 7C154000) 
(7CA00000 - 7CA23000) 
(74FD0000 - 74FEE000) 
(75010000 - 75017000) 
(782C0000 - 782CC000) 
(77340000 - 77353000) 
(77520000 - 77525000) 
(77320000 - 77337000) 
(773B0000 - 773DF000) 
(77380000 - 773A3000) 
(77880000 - 7790E000) 
(77360000 - 77379000) 
(777E0000 - 777E8000) 
(777F0000 - 777F5000) 

State Dump for Thread Id 0x378

eax=008dd47c ebx=00000000 ecx=a030d478 edx=00000000 esi=00136428 edi=001363f8
eip=77e41eb3 esp=0012fe60 ebp=0012fe80 iopl=0         nv up ei pl zr na po nc
cs=001b  ss=0023  ds=0023  es=0023  fs=0038  gs=0000             efl=00200246


function: DispatchMessageW
        77e41e99 e8349dffff       call    GetFocus+0x50 (77e3bbd2)
        77e41e9e e93effffff       jmp     GetWindowLongW+0x681 (77e41de1)
        77e41ea3 90               nop
        77e41ea4 90               nop
        77e41ea5 90               nop
        77e41ea6 90               nop
        77e41ea7 90               nop
        77e41ea8 b89a110000       mov     eax,0x119a
        77e41ead 8d542404         lea     edx,[esp+0x4]          ss:00ba9d47=????????
        77e41eb1 cd2e             int     2e
        77e41eb3 c21000           ret     0x10
        77e41eb6 90               nop
        77e41eb7 90               nop
        77e41eb8 90               nop
        77e41eb9 90               nop
        77e41eba 90               nop

*----> Stack Back Trace <----*

FramePtr ReturnAd Param#1  Param#2  Param#3  Param#4  Function Name
0012FE80 007D2635 00136428 00000000 00000000 00000000 user32!DispatchMessageW 
00000000 00000000 00000000 00000000 00000000 00000000 !<nosymbols> 

*----> Raw Stack Dump <----*
0012fe60  7d 79 e2 77 28 64 13 00 - 00 00 00 00 00 00 00 00  }y.w(d..........
0012fe70  00 00 00 00 00 00 00 00 - 28 64 13 00 f8 63 13 00  ........(d...c..
0012fe80  00 00 00 00 35 26 7d 00 - 28 64 13 00 00 00 00 00  ....5&}.(d......
0012fe90  00 00 00 00 00 00 00 00 - 28 64 13 00 b8 19 84 00  ........(d......
0012fea0  8e 23 7d 00 b8 19 84 00 - b8 19 84 00 60 ff 12 00  .#}.........`...
0012feb0  ff ff ff ff 02 00 00 00 - f8 63 13 00 6e 2e 81 00  .........c..n...
0012fec0  93 08 00 00 02 00 00 00 - 01 00 00 00 b4 4d 7f 00  .............M..
0012fed0  00 00 40 00 00 00 00 00 - 03 35 13 00 01 00 00 00  ..@......5......
0012fee0  ae 75 53 c3 6f 00 63 00 - 75 00 6d 00 00 f0 fd 7f  .uS.o.c.u.m.....
0012fef0  44 00 00 00 08 3f 13 00 - 18 3f 13 00 30 3f 13 00  D....?...?..0?..
0012ff00  00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00  ................
0012ff10  00 00 00 00 00 00 00 00 - 00 00 00 00 01 04 00 00  ................
0012ff20  01 00 00 00 00 00 00 00 - 00 00 00 00 01 00 01 00  ................
0012ff30  00 00 00 00 5c ff 12 00 - 00 00 00 00 05 00 00 00  ....\...........
0012ff40  00 00 00 00 6f 00 63 00 - e0 fe 12 00 d6 84 c9 19  ....o.c.........
0012ff50  e0 ff 12 00 10 99 7f 00 - 7e fd c2 c3 01 00 00 00  ........~.......
0012ff60  c0 ff 12 00 ef 66 40 00 - 44 00 00 00 08 3f 13 00  .....f@.D....?..
0012ff70  18 3f 13 00 30 3f 13 00 - 00 00 00 00 00 00 00 00  .?..0?..........
0012ff80  00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00  ................
0012ff90  00 00 00 00 01 04 00 00 - 01 00 00 00 00 00 00 00  ................

State Dump for Thread Id 0x3c4

eax=00841b38 ebx=00f7ff1c ecx=00000000 edx=00000000 esi=77f88f08 edi=000000c0
eip=77f88f13 esp=00f7ff00 ebp=00f7ff24 iopl=0         nv up ei ng nz ac pe cy
cs=001b  ss=0023  ds=0023  es=0023  fs=0038  gs=0000             efl=00000293


function: ZwWaitForSingleObject
        77f88f08 b8ea000000       mov     eax,0xea
        77f88f0d 8d542404         lea     edx,[esp+0x4]          ss:019f9de7=002c9d00
        77f88f11 cd2e             int     2e
        77f88f13 c20c00           ret     0xc
        77f88f16 8bff             mov     edi,edi

*----> Stack Back Trace <----*

FramePtr ReturnAd Param#1  Param#2  Param#3  Param#4  Function Name
00F7FF24 7C57B3DB 000000C0 001AF270 00000000 0044E007 ntdll!ZwWaitForSingleObject 
0000000D 00000000 00000000 00000000 00000000 00000000 kernel32!WaitForSingleObject 

*----> Raw Stack Dump <----*
00f7ff00  30 a0 59 7c c0 00 00 00 - 00 00 00 00 1c ff f7 00  0.Y|............
00f7ff10  00 00 00 00 00 00 00 00 - 00 00 00 00 00 c9 61 e3  ..............a.
00f7ff20  fb ff ff ff 0d 00 00 00 - db b3 57 7c c0 00 00 00  ..........W|....
00f7ff30  70 f2 1a 00 00 00 00 00 - 07 e0 44 00 c0 00 00 00  p.........D.....
00f7ff40  70 f2 1a 00 3e 30 43 00 - 30 1b 84 00 e6 06 00 00  p...>0C.0.......
00f7ff50  22 f9 12 00 d0 5c c8 00 - b0 ff f7 00 e0 5c c8 00  "....\.......\..
00f7ff60  77 05 40 49 00 00 00 00 - 5d 0c 40 49 00 00 00 00  w.@I....].@I....
00f7ff70  5d e0 44 00 00 00 00 00 - 00 f9 12 00 8e 9e 7f 00  ].D.............
00f7ff80  d0 5c c8 00 7e 75 b6 c3 - 22 f9 12 00 00 f9 12 00  .\..~u..".......
00f7ff90  e0 5c c8 00 84 ff f7 00 - 84 ff f7 00 dc ff f7 00  .\..............
00f7ffa0  dc ff f7 00 10 99 7f 00 - 76 f3 c2 c3 00 00 00 00  ........v.......
00f7ffb0  ec ff f7 00 27 9f 7f 00 - 88 b3 57 7c e0 5c c8 00  ....'.....W|.\..
00f7ffc0  22 f9 12 00 00 f9 12 00 - e0 5c c8 00 00 c0 fd 7f  "........\......
00f7ffd0  c0 fb 12 00 c0 ff f7 00 - c0 fb 12 00 ff ff ff ff  ................
00f7ffe0  54 1f 5c 7c 08 2b 57 7c - 00 00 00 00 00 00 00 00  T.\|.+W|........
00f7fff0  00 00 00 00 b4 9e 7f 00 - e0 5c c8 00 00 00 00 00  .........\......
00f80000  c8 00 00 00 00 01 00 00 - ff ee ff ee 02 10 00 00  ................
00f80010  00 00 00 00 00 fe 00 00 - 00 00 10 00 00 20 00 00  ............. ..
00f80020  00 02 00 00 00 20 00 00 - 9d 00 00 00 ff ef fd 7f  ..... ..........
00f80030  06 00 08 06 00 00 00 00 - 00 00 00 00 00 00 00 00  ................

State Dump for Thread Id 0x2d0

eax=00149000 ebx=00000004 ecx=015bf9cc edx=00000000 esi=77f88ef8 edi=00000004
eip=77f88f03 esp=015bfd24 ebp=015bfd70 iopl=0         nv up ei pl zr na po nc
cs=001b  ss=0023  ds=0023  es=0023  fs=0038  gs=0000             efl=00000246


function: NtWaitForMultipleObjects
        77f88ef8 b8e9000000       mov     eax,0xe9
        77f88efd 8d542404         lea     edx,[esp+0x4]          ss:02039c0b=????????
        77f88f01 cd2e             int     2e
        77f88f03 c21400           ret     0x14
        77f88f06 8bff             mov     edi,edi

*----> Stack Back Trace <----*

FramePtr ReturnAd Param#1  Param#2  Param#3  Param#4  Function Name
015BFD70 7C59A10E 015BFD48 00000001 00000000 00000000 ntdll!NtWaitForMultipleObjects 
015BFFB4 7C57B388 00000005 7FFDD000 7C3280D0 00146EC8 kernel32!WaitForMultipleObjects 
015BFFEC 00000000 00000000 00000000 00000000 00000000 kernel32!lstrcmpiW 

State Dump for Thread Id 0x3a0

eax=20000008 ebx=0ffa7cbc ecx=fffff5ae edx=0000001d esi=01a50004 edi=fffffffe
eip=00404239 esp=019d20fc ebp=5dbcfb89 iopl=0         nv up ei ng nz na pe nc
cs=001b  ss=0023  ds=0023  es=0023  fs=0038  gs=0000             efl=00200282


function: <nosymbols>
        00404220 d8cb             fmul    st,st(3)
        00404222 dd842420050000                          ss:019d261c=2000000043aff4f9
                                  fld     qword ptr [esp+0x520]
        00404229 d9cc             fxch    st(4)
        0040422b d8c8             fmul    st,st(0)
        0040422d d9ce             fxch    st(6)
        0040422f dee9             fsubrp  st(1),st
        00404231 d9cb             fxch    st(3)
        00404233 d8ca             fmul    st,st(2)
        00404235 d9cc             fxch    st(4)
        00404237 d9e1             fabs
FAULT ->00404239 d88c8c48080000 fmul dword ptr [esp+ecx*4+0x848] ss:fffffdf6=????????
        00404240 d9cb             fxch    st(3)
        00404242 dec1             faddp   st(1),st
        00404244 d9c9             fxch    st(1)
        00404246 dc8c2430050000                          ss:019d262c=c1caa998d7800000
                                  fmul    qword ptr [esp+0x530]
        0040424d d9ca             fxch    st(2)
        0040424f dca42418050000                          ss:019d2614=8a00000000000000
                                  fsub    qword ptr [esp+0x518]
        00404256 d9cb             fxch    st(3)
        00404258 dee9             fsubrp  st(1),st
        0040425a d9c9             fxch    st(1)
        0040425c deeb             fsubrp  st(3),st
        0040425e d9c9             fxch    st(1)

*----> Stack Back Trace <----*

FramePtr ReturnAd Param#1  Param#2  Param#3  Param#4  Function Name
5DBCFB89 00000000 00000000 00000000 00000000 00000000 !<nosymbols> 

*----> Raw Stack Dump <----*
019d20fc  ee 3e 40 00 c3 15 23 06 - 00 00 00 00 00 00 00 00  .>@...#.........
019d210c  bc 7c fa 0f 00 00 00 00 - 21 00 00 00 01 00 00 00  .|......!.......
019d211c  00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00  ................
019d212c  00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00  ................
019d213c  00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00  ................
019d214c  00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00  ................
019d215c  00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00  ................
019d216c  00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00  ................
019d217c  00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00  ................
019d218c  00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00  ................
019d219c  00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00  ................
019d21ac  00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00  ................
019d21bc  00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00  ................
019d21cc  00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00  ................
019d21dc  00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00  ................
019d21ec  00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00  ................
019d21fc  00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00  ................
019d220c  00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00  ................
019d221c  00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00  ................
019d222c  00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00  ................

Prime95 · 2008-12-11, 14:49

Email your worktodo.txt file and the fXXXXXXX save file. I can't reproduce it here, so it must be data-specific.

In the meantime, place a semicolon in front of the line in worktodo.txt. Hopefully the next exponent won't cause any trouble.

M0CZY · 2008-12-12, 10:44

Sorry, I can't, because I moved the folder from my 233MMX onto my Celeron machine, finished the work and then moved it back onto the 233MMX to report the results.

Shall I download some more similar work and see if it crashes again?

Edit: Of course I should!

Prime95 · 2008-12-13, 04:19

Fixed in 25.8 build 3. Available for Windows now

M0CZY · 2008-12-15, 10:12

Version 25.8 build 3 is now running fine on my 233MMX, so thank you George, for compiling a new build specially for me and my old computer!

As the size of the exponents we are working on grows ever larger, low-level trial factoring is about the only useful work my 233MMX can still do in a reasonable time, so I'm happy that my machine can now continue with this project.

M0CZY · 2008-12-15, 14:15

Build 3 has been working fine now on my 233MMX, so I thought it would be safe to upgrade to Build 4, but after I did I have received a couple of errors, where a wrong factor is found.

[Mon Dec 15 12:46:13 2008]
UID: M0CZY/233MMX, M104574091 no factor from 2^62 to 2^63, Wd1: EBB0B7EC, AID: 7B6D708E293AF76D5A39833276DB715A
ERROR: Incorrect factor found.
[Mon Dec 15 13:02:42 2008]
ERROR: Incorrect factor found.
UID: M0CZY/233MMX, M104574103 has a factor: 145759997341466624, AID: 4DBD4F3C1B9A75B53F653FED23B2BDAC

That must be wrong, how can a Mersenne number have a factor that is an even number?

For now, I am going to keep a close eye on the output, as I would hate to be sending incorrect results back to the server.

M0CZY · 2008-12-16, 10:23

The Incorrect factor found error is reproducible on my 233MMX: I ran

Factor=4DBD4F3C1B9A75B53F653FED23B2BDAC,104574103,57,63

several times, and it kept coming up with the same wrong factor

ERROR: Incorrect factor found.
M104574103 has a factor: 145759997341466624, AID: 4DBD4F3C1B9A75B53F653FED23B2BDAC

When I ran the same exponent several times on my Celeron D machine it always came up with

M104574103 has a factor: 146210891985618697, AID: 4DBD4F3C1B9A75B53F653FED23B2BDAC

which I believe is the correct factor.
When I tried using Version 24.14 it also found the correct factor

[Mon Dec 15 18:32:35 2008]
M104574103 has a factor: 146210891985618697

ET_ · 2008-12-16, 11:25

Quote:

Originally Posted by M0CZY

The Incorrect factor found error is reproducible on my 233MMX: I ran

Factor=4DBD4F3C1B9A75B53F653FED23B2BDAC,104574103,57,63

several times, and it kept coming up with the same wrong factor

ERROR: Incorrect factor found.
M104574103 has a factor: 145759997341466624, AID: 4DBD4F3C1B9A75B53F653FED23B2BDAC

When I ran the same exponent several times on my Celeron D machine it always came up with

M104574103 has a factor: 146210891985618697, AID: 4DBD4F3C1B9A75B53F653FED23B2BDAC

which I believe is the correct factor.
When I tried using Version 24.14 it also found the correct factor

[Mon Dec 15 18:32:35 2008]
M104574103 has a factor: 146210891985618697

146210891985618697 is the correct factor.

Luigi

M0CZY · 2008-12-16, 14:20

Yes, I thought that was the correct factor.

I am stopping work with my 233MMX, because I don't want to report any incorrect factors to the server, and also because there is a chance that my machine might be missing factors that it should have found.

Prime95 · 2008-12-16, 16:51

I've been able to reproduce the problem. I'll hunt the bug down this afternoon.

Prime95 · 2008-12-16, 20:17

Fixed in 25.8 build 5 - now available for Windows only.

The good news is that it wasn't missing any factors - just not reporting found factors properly.

2008-12-16, 10:23	#7
M0CZY May 2005 Brutal Police State, UK 124₁₀ Posts	ERROR: Incorrect factor found. The Incorrect factor found error is reproducible on my 233MMX: I ran Factor=4DBD4F3C1B9A75B53F653FED23B2BDAC,104574103,57,63 several times, and it kept coming up with the same wrong factor ERROR: Incorrect factor found. M104574103 has a factor: 145759997341466624, AID: 4DBD4F3C1B9A75B53F653FED23B2BDAC When I ran the same exponent several times on my Celeron D machine it always came up with M104574103 has a factor: 146210891985618697, AID: 4DBD4F3C1B9A75B53F653FED23B2BDAC which I believe is the correct factor. When I tried using Version 24.14 it also found the correct factor [Mon Dec 15 18:32:35 2008] M104574103 has a factor: 146210891985618697

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2008-12-11, 14:49	#2
Prime95 P90 years forever! Aug 2002 Yeehaw, FL 7537₁₀ Posts	Email your worktodo.txt file and the fXXXXXXX save file. I can't reproduce it here, so it must be data-specific. In the meantime, place a semicolon in front of the line in worktodo.txt. Hopefully the next exponent won't cause any trouble.

2008-12-12, 10:44	#3
M0CZY May 2005 Brutal Police State, UK 2²·31 Posts	Sorry, I can't, because I moved the folder from my 233MMX onto my Celeron machine, finished the work and then moved it back onto the 233MMX to report the results. Shall I download some more similar work and see if it crashes again? Edit: Of course I should! Last fiddled with by M0CZY on 2008-12-12 at 10:49

2008-12-13, 04:19	#4
Prime95 P90 years forever! Aug 2002 Yeehaw, FL 7,537 Posts	Fixed in 25.8 build 3. Available for Windows now

2008-12-15, 10:12	#5
M0CZY May 2005 Brutal Police State, UK 1111100₂ Posts	Version 25.8 build 3 is now running fine on my 233MMX, so thank you George, for compiling a new build specially for me and my old computer! As the size of the exponents we are working on grows ever larger, low-level trial factoring is about the only useful work my 233MMX can still do in a reasonable time, so I'm happy that my machine can now continue with this project.

2008-12-15, 14:15	#6
M0CZY May 2005 Brutal Police State, UK 174₈ Posts	Build 3 has been working fine now on my 233MMX, so I thought it would be safe to upgrade to Build 4, but after I did I have received a couple of errors, where a wrong factor is found. [Mon Dec 15 12:46:13 2008] UID: M0CZY/233MMX, M104574091 no factor from 2^62 to 2^63, Wd1: EBB0B7EC, AID: 7B6D708E293AF76D5A39833276DB715A ERROR: Incorrect factor found. [Mon Dec 15 13:02:42 2008] ERROR: Incorrect factor found. UID: M0CZY/233MMX, M104574103 has a factor: 145759997341466624, AID: 4DBD4F3C1B9A75B53F653FED23B2BDAC That must be wrong, how can a Mersenne number have a factor that is an even number? For now, I am going to keep a close eye on the output, as I would hate to be sending incorrect results back to the server.

2008-12-16, 14:20	#9
M0CZY May 2005 Brutal Police State, UK 2²×31 Posts	Yes, I thought that was the correct factor. I am stopping work with my 233MMX, because I don't want to report any incorrect factors to the server, and also because there is a chance that my machine might be missing factors that it should have found.

2008-12-16, 16:51	#10
Prime95 P90 years forever! Aug 2002 Yeehaw, FL 7,537 Posts	I've been able to reproduce the problem. I'll hunt the bug down this afternoon.

2008-12-16, 20:17	#11
Prime95 P90 years forever! Aug 2002 Yeehaw, FL 1110101110001₂ Posts	Fixed in 25.8 build 5 - now available for Windows only. The good news is that it wasn't missing any factors - just not reporting found factors properly.