[Pharo-dev] Crashing the vm in a reproducible way

March 9, 2014

      Hi 

We already experienced this with Pavel in December. 

Once I loaded UnReloader from SystemConfigurations from STHUB/Pharo
and I run unload I crash systematically the latest vm obtain with 

wget -O - http://get.pharo.org/30+vmLatest | bash

the method crashing the system is 

checkState
	"self new checkState"
	| difference | 

	difference := SystemNavigation default allUnimplementedCalls copyWithoutAll: unimplementedCalls.
	difference ifNotEmpty: [ 
		self log 
			nextPutAll: 'new unimplemented calls: '; cr; 
			nextPutAll: difference asString; cr.].

	difference := (SystemNavigation default obsoleteClasses collect: #name) asSet copyWithoutAll: obsoleteClasses.
	difference ifNotEmpty: [ 
		self log 
			nextPutAll: 'new obsoleteClasses:'; cr;
			nextPutAll: difference asString; cr].

	difference := (Undeclared collect: #name) asSet copyWithoutAll: undeclared.
	difference ifNotEmpty: [ 
		self log 
			nextPutAll: 'new undeclared: '; cr;
			nextPutAll: difference asString; cr].

	unimplementedCalls := SystemNavigation default allUnimplementedCalls.
	obsoleteClasses := (SystemNavigation default obsoleteClasses collect: #name) asSet.
	undeclared := (Undeclared collect: #name) asSet.

Now executing the expressions one by one once the tools have been removed does not crash.

Stef

[Pharo-dev] Crashing the vm in a reproducible way

Pharo4Stef