Different image, another crash dump while quitting the image. Lost a bunch of
data this time. Ouch.

Segmentation fault Wed Dec  6 22:30:12 2017


VM: 201707201942 https://github.com/OpenSmalltalk/opensmalltalk-vm.git $
Date: Thu Jul 20 12:42:21 2017 -0700 $
Plugins: 201707201942 https://github.com/OpenSmalltalk/opensmalltalk-vm.git
$

C stack backtrace & registers:
        eax 0x8bfffee0 ebx 0x00000000 ecx 0x0000000c edx 0x00000007
        edi 0x0000000c esi 0x0000000c ebp 0xbff3fad8 esp 0xbff3fad8
        eip 0x000b2651
0   Pharo                               0x000b2651 fetchByteofObject + 9
1   Pharo                               0x00113460 reportStackState + 819
2   Pharo                               0x001137e6 sigsegv + 163
3   libsystem_platform.dylib            0xa778202b _sigtramp + 43
4   ???                                 0xffffffff 0x0 + 4294967295
5   Pharo                               0x000dbb9a bytecodePCForstartBcpcin
+ 273
6   Pharo                               0x0009fed8
mustMapMachineCodePCcontext + 328
7   Pharo                               0x000a0333
ensureContextHasBytecodePC + 26
8   Pharo                               0x000cbb17 makeContextSnapshotSafe +
46
9   Pharo                               0x000ab11d
voidVMStateForSnapshotFlushingExternalPrimitivesIf + 518
10  Pharo                               0x000da477 snapshot + 79
11  Pharo                               0x000d019d primitiveSnapshot + 20
12  Pharo                               0x000946e8 interpret + 26051
13  Pharo                               0x0009db9a
enterSmalltalkExecutiveImplementation + 135
14  Pharo                               0x0008e3ab interpret + 646
15  Pharo                               0x001149d9 -[sqSqueakMainApplication
runSqueak] + 476
16  Foundation                          0x953897ec __NSFirePerformWithOrder
+ 432
17  CoreFoundation                      0x9392a216
__CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__ + 22
18  CoreFoundation                      0x9392a132 __CFRunLoopDoObservers +
498
19  CoreFoundation                      0x9390d5ed __CFRunLoopRun + 1661
20  CoreFoundation                      0x9390cc41 CFRunLoopRunSpecific +
641
21  CoreFoundation                      0x9390c9aa CFRunLoopRunInMode + 122
22  HIToolbox                           0x92f0dd3b RunCurrentEventLoopInMode
+ 321
23  HIToolbox                           0x92f0d91f ReceiveNextEventCommon +
454
24  HIToolbox                           0x92f0d73b
_BlockUntilNextEventMatchingListInModeWithFilter + 71
25  AppKit                              0x9136538d _DPSNextEvent + 2101
26  AppKit                              0x91ad6c74 -[NSApplication(NSEvent)
_nextEventMatchingEventMask:untilDate:inMode:dequeue:] + 2859
27  AppKit                              0x91ad6141 -[NSApplication(NSEvent)
nextEventMatchingMask:untilDate:inMode:dequeue:] + 134
28  AppKit                              0x9135a2e1 -[NSApplication run] +
763
29  AppKit                              0x9132c2f2 NSApplicationMain + 1228
30  libdyld.dylib                       0xa7502711 start + 1
31  ???                                 0x00000002 0x0 + 2


Smalltalk stack dump:
0xbff6ac60 I SessionManager>snapshot:andQuit: 0x8489350: a(n) SessionManager
0xbff6ac90 I [] in SmalltalkImage>snapshot:andQuit: 0x6ea1c50: a(n)
SmalltalkImage
0x1f943be0 s CurrentExecutionEnvironment class>activate:for:
 0x6806028 s
DefaultExecutionEnvironment(ExecutionEnvironment)>beActiveDuring:
 0x6806088 s DefaultExecutionEnvironment class>beActiveDuring:
0x1f943c60 s SmalltalkImage>snapshot:andQuit:




-----
Cheers,
Sean
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