[Vm-dev] LargePositiveInteger crash in testNumberOfDigits

[Frank Shearar]

http://build.squeak.org/job/SqueakTrunk/230/console shows a segfault
in the LargeIntegerPlugin, on Cog r.2701. I've attached the crash.dmp
because otherwise it'll potentially get overwritten by the next build.

The interesting part of the stack is this:

Squeak VM version: 4.0-2701 #1 Mon Mar 11 17:31:47 PDT 2013 gcc 4.1.2
Built from: CoInterpreter VMMaker.oscog-eem.272 uuid:
8f4167f2-5bf0-4d90-9b7f-5355c741c68f Mar 11 2013
With: StackToRegisterMappingCogit VMMaker.oscog-eem.270 uuid:
014f0153-bb02-49b7-b544-d8f3ac2deef6 Mar 11 2013
Revision: VM: r2701 http://www.squeakvm.org/svn/squeak/branches/Cog
Plugins: r2545 http://squeakvm.org/svn/squeak/trunk/platforms/Cross/plugins
Build host: Linux mcqfes 2.6.18-128.el5 #1 SMP Wed Jan 21 10:44:23 EST
2009 i686 i686 i386 GNU/Linux
plugin path: /var/lib/jenkins/workspace/SqueakTrunk/target/cog.r2701/coglinux/bin/../lib/squeak/4.0-2701
[default: /var/lib/jenkins/workspace/SqueakTrunk/target/cog.r2701/coglinux/lib/squeak/4.0-2701/]


C stack backtrace:
/var/lib/jenkins/workspace/SqueakTrunk/target/cog.r2701/coglinux/bin/../lib/squeak/4.0-2701/squeak[0x805cc81]
/var/lib/jenkins/workspace/SqueakTrunk/target/cog.r2701/coglinux/bin/../lib/squeak/4.0-2701/squeak[0x805ce58]
[0xf57fe40c]
/var/lib/jenkins/workspace/SqueakTrunk/target/cog.r2701/coglinux/bin/../lib/squeak/4.0-2701/squeak[0x80e4049]
[0x773c4848]
/var/lib/jenkins/workspace/SqueakTrunk/target/cog.r2701/coglinux/bin/../lib/squeak/4.0-2701/squeak(interpret+0x1eb)[0x807ff0b]
/var/lib/jenkins/workspace/SqueakTrunk/target/cog.r2701/coglinux/bin/../lib/squeak/4.0-2701/squeak(main+0x397)[0x805d347]
/lib/i686/nosegneg/libc.so.6(__libc_start_main+0xe6)[0xb755dca6]
/var/lib/jenkins/workspace/SqueakTrunk/target/cog.r2701/coglinux/bin/../lib/squeak/4.0-2701/squeak[0x805ad41]


Smalltalk stack dump:
0xbfc501c4 M LargePositiveInteger(Integer)>quo: 0x788faa9c: a(n)
LargePositiveInteger
0xbfc501e0 M LargePositiveInteger>quo: 0x788faa9c: a(n) LargePositiveInteger
0xbfc50208 M LargePositiveInteger(Integer)>numberOfDigitsInBase:
0x788faa9c: a(n) LargePositiveInteger
0xbfc50238 M IntegerTest>testNumberOfDigits 0x788ad384: a(n) IntegerTest
<snip>
Most recent primitives
replaceFrom:to:with:startingAt:
normalize
+
digitSubtract:
basicNew:
replaceFrom:to:with:startingAt:
<
digitCompare:
digitMultiply:neg:
*
*
digitMultiply:neg:
*
digitMultiply:neg:
*
digitMultiply:neg:
*
digitMultiply:neg:
quo:
digitDiv:neg:
normalize
<
digitCompare:
digitMultiply:neg:
quo:
digitDiv:neg:
normalize
basicNew:
replaceFrom:to:with:startingAt:
normalize
basicNew:
replaceFrom:to:with:startingAt:
<
digitCompare:
digitMultiply:neg:
*
*
digitMultiply:neg:
*
digitMultiply:neg:
*
digitMultiply:neg:
*
digitMultiply:neg:
quo:
digitDiv:neg:
normalize
<
digitCompare:
digitMultiply:neg:
quo:
digitDiv:neg:
normalize
basicNew:
replaceFrom:to:with:startingAt:
normalize
-
digitAdd:
normalize
basicNew:
replaceFrom:to:with:startingAt:
<
digitCompare:
digitMultiply:neg:
*
*
digitMultiply:neg:
*
digitMultiply:neg:
*
digitMultiply:neg:
*
digitMultiply:neg:
quo:
digitDiv:neg:
normalize
<
digitCompare:
digitMultiply:neg:
quo:
digitDiv:neg:
normalize
digitMultiply:neg:
*
*
digitMultiply:neg:
*
digitMultiply:neg:
*
digitMultiply:neg:
*
digitMultiply:neg:
-
digitSubtract:
<
digitCompare:
digitMultiply:neg:
*
digitMultiply:neg:
*
digitMultiply:neg:
quo:
digitDiv:neg:
normalize
<
digitCompare:
digitMultiply:neg:
quo:
digitDiv:neg:
normalize
<
digitCompare:
digitMultiply:neg:
*
digitMultiply:neg:
*
digitMultiply:neg:
quo:
digitDiv:neg:
normalize
<
digitCompare:
digitMultiply:neg:
quo:
digitDiv:neg:
normalize
+
digitAdd:
normalize
<
digitCompare:
digitMultiply:neg:
*
digitMultiply:neg:
*
digitMultiply:neg:
quo:
digitDiv:neg:
normalize
<
digitCompare:
digitMultiply:neg:
quo:
digitDiv:neg:
normalize
basicNew:
replaceFrom:to:with:startingAt:
normalize
+
digitSubtract:
basicNew:
replaceFrom:to:with:startingAt:
<
digitCompare:
digitMultiply:neg:
*
digitMultiply:neg:
*
digitMultiply:neg:
quo:
digitDiv:neg:
normalize
<
digitCompare:
digitMultiply:neg:
quo:
digitDiv:neg:
normalize
basicNew:
replaceFrom:to:with:startingAt:
normalize
basicNew:
replaceFrom:to:with:startingAt:
<
digitCompare:
digitMultiply:neg:
*
digitMultiply:neg:
*
digitMultiply:neg:
quo:
digitDiv:neg:
normalize
<
digitCompare:
digitMultiply:neg:
quo:
digitDiv:neg:
normalize
basicNew:
replaceFrom:to:with:startingAt:
normalize
-
digitAdd:
normalize
basicNew:
replaceFrom:to:with:startingAt:
<
digitCompare:
digitMultiply:neg:
*
digitMultiply:neg:
*
digitMultiply:neg:
quo:
digitDiv:neg:
normalize
<
digitCompare:
digitMultiply:neg:
quo:
digitDiv:neg:
normalize
digitMultiply:neg:
*
*
digitMultiply:neg:
*
digitMultiply:neg:
*
digitMultiply:neg:
*
digitMultiply:neg:
*
digitMultiply:neg:
-
digitSubtract:
<
digitCompare:
digitMultiply:neg:
*
digitMultiply:neg:
*
digitMultiply:neg:
*
digitMultiply:neg:
quo:
digitDiv:neg:
normalize
<
digitCompare:
digitMultiply:neg:
quo:
digitDiv:neg:
normalize
<
digitCompare:
digitMultiply:neg:
*
digitMultiply:neg:
*
digitMultiply:neg:
*
digitMultiply:neg:
quo:
digitDiv:neg:

frank
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