Help! Squeak crashes during updates
Danny Sharpe
dsharpe at westga.edu
Fri Dec 17 20:50:54 UTC 1999
Torge Husfeldt wrote:
> I have a Problem with update #1695
> When I Proceed the notifier squeak raises a Windows-Exception and is
> immediately shut down :-(
>
> I am running Squeak under win98.
> I didn't find the version number of the VM but it is exactly 319,488 Bytes and
> seems to be created Friday the 8th of October (just what windows tells me).
> It may be a hint that PlayWithMe 7 also crashes (about the same way).
Andreas Raab replied:
> You can get the version of the running VM by pressing F2 and choosing 'display
> version information' from the menu. However, your debug log looks somewhat
> strange - it seems that the system is breaking during the attempt to show a
> notifier... quite strange. It's also weird that Windows says there would be
> an exception '10H' - AFAIK, there is *no* such exception...
That's funny, my Squeak exhibits the same behavior as Torge's, and under
the same conditions. After selecting proceed during update 1695, there
is a short pause and then Squeak crashes rather rudely:
SQUEAK caused an exception 10H in module SQUEAK.EXE at 0137:0041e357.
Registers:
EAX=00000000 CS=0137 EIP=0041e357 EFLGS=00010257
EBX=00000000 SS=013f ESP=0068fbc0 EBP=01f26a46
ECX=021fda94 DS=013f ESI=021fccc0 FS=22ef
EDX=020ac24c ES=013f EDI=01ce6f98 GS=0000
Bytes at CS:EIP:
db 44 24 18 85 c0 0f 84 fa 00 00 00 dd 84 24 e0
Stack dump:
00000000 01000000 0068fcdc 00000000 021fcc9c 01ce6f98 00000000 4385d0d8
0000000f 00000008 9a6699a6 3fc9a669 00000000 00000000 00000000 00000000
Going into debug and looking at the disassembly reveals a little more about the
error:
Unhandled exception in Squeak.exe: 0xC0000092: Float Stack Check
0041E33F xor eax,eax
0041E341 mov [00452744],eax
0041E346 mov edx,dword ptr ds:[4527F0h]
0041E34C test bl,1
0041E34F je 0041E383
0041E351 sar ebx,1
0041E353 mov dword ptr [esp+18h],ebx
--> 0041E357 fild dword ptr [esp+18h]
0041E35B test eax,eax
0041E35D je 0041E45D
0041E363 fld qword ptr [esp+0E0h]
0041E36A fcomp st(1)
0041E36C fnstsw ax
0041E36E test ah,40h
0041E371 fstp st(0)
0041E373 je 0041E417
0041E379 mov ecx,1
0041E37E jmp 0041E419
Version information from the Squeak VM Preferences:
Squeak 2.6 VM (release build 1) from Oct 18 1999
I'm running Win95.
Play With Me 7 crashes on mine, too. When I open it up and try to enter the
project, it immediately crashes:
SQUEAK caused an exception 10H in module SQUEAK3D.DLL at 0137:015089a0.
Registers:
EAX=021c6a34 CS=0137 EIP=015089a0 EFLGS=00010206
EBX=0000002a SS=013f ESP=0068fb00 EBP=0068fb20
ECX=02216acc DS=013f ESI=02216acc FS=4b07
EDX=00000010 ES=013f EDI=021c6a34 GS=0000
Bytes at CS:EIP:
dd 5c 24 18 d9 40 04 dc 4c 24 08 d9 00 dc 4c 24
Stack dump:
60000000 3fe49de0 00000000 3fef9874 60000000 3fc44990 e0000000 bfd6e05b
0220b7d8 01508df5 02216acc 021c6a34 00000000 0000008a 022152cc 0220b7d8
The debugger explains the error as,
Unhandled exception in Squeak.exe (SQUEAK3D.DLL): 0xC0000090: Float
Invalid Operation
With the following disassembly:
01508980 push ebp
01508981 mov ebp,esp
01508983 and esp,0F8h
01508986 sub esp,20h
01508989 mov ecx,dword ptr [ebp+8]
0150898C mov eax,dword ptr [ebp+0Ch]
0150898F fld dword ptr [ecx+0Ch]
01508992 fstp qword ptr [esp+10h]
01508996 fld dword ptr [ecx+10h]
01508999 fstp qword ptr [esp+8]
0150899D fld dword ptr [ecx+14h]
--> 015089A0 fstp qword ptr [esp+18h]
015089A4 fld dword ptr [eax+4]
015089A7 fmul qword ptr [esp+8]
015089AB fld dword ptr [eax]
015089AD fmul qword ptr [esp+10h]
Aside from noticing that each error occurs on a floating point instruction
with an operand of [esp+18h], I haven't dug any deeper to try to find the
cause.
----------------------------+-------------------------------------------------
Danny Sharpe | When I walked into class the other day, the
Department of Computing | following notice was posted on the board:
State Univ. of West Georgia |
Carrollton, GA 30118 | Y2K Damage Assessment
Office: (770) 836-6491 | Meeting
Fax: (770) 836-4695 | January 4, 1900
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