Hi all,

I installed OSProcess into a 4.6 image via SqueakMap this morning and ran its tests.  I am running OS X 10.6.8.  Early into the list of tests to run, the VM crashes.  What follows are the crash logs from Cocoa VM 5.7.4.1 (http://www.squeakvm.org/mac/ contains some broken links and may be quite out of date, FWIW), and Cog v3397.

Here is the crash log from 5.7.4.1:

Process:         Squeak [803]
Path:            /Applications/Squeak/Squeak 5.7.4.1.app/Contents/MacOS/Squeak
Identifier:      Squeak
Version:         ??? (???)
Code Type:       X86 (Native)
Parent Process:  Squeak [790]

Date/Time:       2016-05-28 08:41:56.560 -0700
OS Version:      Mac OS X 10.6.8 (10K549)
Report Version:  6

Exception Type:  EXC_BAD_ACCESS (SIGABRT)
Exception Codes: KERN_INVALID_ADDRESS at 0x000000006c1f6f3b
Crashed Thread:  0  Dispatch queue: com.apple.main-thread

Application Specific Information:
abort() called
*** multi-threaded process forked ***

Thread 0 Crashed:  Dispatch queue: com.apple.main-thread
0   libSystem.B.dylib             	0x94580c5a __kill + 10
1   libSystem.B.dylib             	0x94580c4c kill$UNIX2003 + 32
2   libSystem.B.dylib             	0x946135a5 raise + 26
3   libSystem.B.dylib             	0x946296e4 abort + 93
4   org.squeak.Squeak             	0x000a3ccc sigsegv + 44
5   ???                           	0xffffffff 0 + 4294967295

Thread 0 crashed with X86 Thread State (32-bit):
  eax: 0x00000000  ebx: 0x94629693  ecx: 0xbfffe23c  edx: 0x94580c5a
  edi: 0x1ff121a0  esi: 0xbfffe670  ebp: 0xbfffe258  esp: 0xbfffe23c
   ss: 0x0000001f  efl: 0x00000282  eip: 0x94580c5a   cs: 0x00000007
   ds: 0x0000001f   es: 0x0000001f   fs: 0x00000000   gs: 0x00000037
  cr2: 0x3f23c940


+++++

Cog VM v3397:

+++++

Process:         Squeak [685]
Path:            /Applications/Squeak/Cog 3397.app/Contents/MacOS/Squeak
Identifier:      com.squeak.Cog
Version:         Squeak Cog 4.0.3397 (4.0.3397)
Code Type:       X86 (Native)
Parent Process:  launchd [339]

Date/Time:       2016-05-28 08:30:21.513 -0700
OS Version:      Mac OS X 10.6.8 (10K549)
Report Version:  6

Anonymous UUID:                      E643DB34-DCF4-46E5-B8DF-93CDE79B01CE

Exception Type:  EXC_BAD_ACCESS (SIGABRT)
Exception Codes: KERN_PROTECTION_FAILURE at 0x0000000000000104
Crashed Thread:  0  Dispatch queue: com.apple.main-thread

Application Specific Information:
abort() called

Thread 0 Crashed:  Dispatch queue: com.apple.main-thread
0   libSystem.B.dylib             	0x94580c5a __kill + 10
1   libSystem.B.dylib             	0x94580c4c kill$UNIX2003 + 32
2   libSystem.B.dylib             	0x946135a5 raise + 26
3   libSystem.B.dylib             	0x946296e4 abort + 93
4   com.squeak.Cog                	0x00071564 sigsegv + 404
5   libSystem.B.dylib             	0x9458605b _sigtramp + 43
6   ???                           	0xffffffff 0 + 4294967295
7   com.squeak.Cog                	0x000c97a3 scanForCleanBlocks + 83
8   com.squeak.Cog                	0x000cbd03 compileCogMethod + 403
9   com.squeak.Cog                	0x000cbe37 cogselector + 103
10  com.squeak.Cog                	0x000f2f72 makeBaseFrameFor + 546
11  com.squeak.Cog                	0x000f427d transferTofrom + 413
12  com.squeak.Cog                	0x000f4706 synchronousSignal + 262
13  com.squeak.Cog                	0x000f7fb1 checkForEventsMayContextSwitch + 625
14  com.squeak.Cog                	0x000f82b0 ceCheckForInterrupts + 16
15  ???                           	0x181106e3 0 + 403769059
16  com.squeak.Cog                	0x00104976 interpret + 3174
17  com.squeak.Cog                	0x0005f7a0 EventLoopEventHandler + 144
18  com.apple.HIToolbox           	0x910f9c2f DispatchEventToHandlers(EventTargetRec*, OpaqueEventRef*, HandlerCallRec*) + 1567
19  com.apple.HIToolbox           	0x910f8ef6 SendEventToEventTargetInternal(OpaqueEventRef*, OpaqueEventTargetRef*, HandlerCallRec*) + 411
20  com.apple.HIToolbox           	0x910f8d55 SendEventToEventTargetWithOptions + 58
21  com.apple.HIToolbox           	0x9112da24 ToolboxEventDispatcherHandler(OpaqueEventHandlerCallRef*, OpaqueEventRef*, void*) + 3006
22  com.apple.HIToolbox           	0x910fa080 DispatchEventToHandlers(EventTargetRec*, OpaqueEventRef*, HandlerCallRec*) + 2672
23  com.apple.HIToolbox           	0x910f8ef6 SendEventToEventTargetInternal(OpaqueEventRef*, OpaqueEventTargetRef*, HandlerCallRec*) + 411
24  com.apple.HIToolbox           	0x9111b7f3 SendEventToEventTarget + 52
25  com.apple.HIToolbox           	0x912a4c17 ToolboxEventDispatcher + 86
26  com.apple.HIToolbox           	0x912a4d4f RunApplicationEventLoop + 243
27  com.squeak.Cog                	0x0005efba RunApplicationEventLoopWithSqueak + 218
28  com.squeak.Cog                	0x000711b2 main + 690
29  com.squeak.Cog                	0x00002b56 start + 54