[Vm-dev] NULL pointer deref in fetching events?

[Eliot Miranda]

Process:         Squeak [2023]
Path:            /Users/USER/*/CocoaFast.app/Contents/MacOS/Squeak
Identifier:      org.squeak.Squeak$(VM_MONIKER)
Version:         5.0.3721 (5.0.3721)
Code Type:       X86 (Native)
Parent Process:  launchd [186]
Responsible:     Squeak [2023]
User ID:         594

Date/Time:       2016-05-19 16:37:13.900 -0700
OS Version:      Mac OS X 10.9.5 (13F1808)
Report Version:  11
Anonymous UUID:  F54BABC9-4764-81AE-0375-EA1A9A4A38C2


Crashed Thread:  0  Dispatch queue: com.apple.main-thread

Exception Type:  EXC_BAD_ACCESS (SIGBUS)
Exception Codes: KERN_PROTECTION_FAILURE at 0x0000000000000000

VM Regions Near 0:
--> __PAGEZERO             0000000000000000-0000000000001000 [    4K]
---/--- SM=NUL  /Users/USER/*/CocoaFast.app/Contents/MacOS/Squeak
    VM_ALLOCATE            0000000000001000-00000000000cf000 [  824K]
---/--- SM=NUL

Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0   com.apple.CoreFoundation       0x9821a95d CFRunLoopRunSpecific + 253
1   com.apple.CoreFoundation       0x9821a84b CFRunLoopRunInMode + 123
2   com.apple.Foundation           0x91c48559 -[NSRunLoop(NSRunLoop)
runMode:beforeDate:] + 277
3   org.squeak.Squeak$(VM_MONIKER) 0x00145f70
-[sqSqueakMainApplication(events) pumpRunLoop] + 99
(sqSqueakMainApplication+events.m:69)
4   org.squeak.Squeak$(VM_MONIKER) 0x0013beb8
-[sqSqueakOSXApplication(events) pumpRunLoop] + 50
(sqSqueakOSXApplication+events.m:127)
5   org.squeak.Squeak$(VM_MONIKER) 0x00143c56 nativeIoProcessEvents + 208
(sqSqueakEventsAPI.m:70)
6   org.squeak.Squeak$(VM_MONIKER) 0x00143caa ioProcessEvents + 35
(sqSqueakEventsAPI.m:84)
7   org.squeak.Squeak$(VM_MONIKER) 0x000dc82a
checkForEventsMayContextSwitch + 884 (gcc3x-cointerp.c:61595)
8   org.squeak.Squeak$(VM_MONIKER) 0x000dbaec
handleStackOverflowOrEventAllowContextSwitch + 33 (gcc3x-cointerp.c:64780)
9   org.squeak.Squeak$(VM_MONIKER) 0x000dfb2e ceStackOverflow + 108
(gcc3x-cointerp.c:11701)
10  ???                           0x055262c6 0 + 89285318

_,,,^..^,,,_
best, Eliot
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