Bug #3258: Segmentation fault in Bigdecimal.new
http://redmine.ruby-lang.org/issues/show/3258
e$B5/I<<Te(B: masaya tarui
e$B%9%F!<%?%9e(B: Open, e$BM%@hEYe(B: Normal
Target version: 1.9.2
ruby -v: ruby 1.9.2dev (2010-05-07 trunk 27658) [i386-mswin32_90]
GC.stress = true
require ‘bigdecimal’
1000.times{|i| puts BigDecimal.new(“1” + “0”*i) }
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ruby 1.9.2dev (2010-05-07 trunk 27658) [i386-mswin32_90]
0.1E1
0.1E2
0.1E3
0.1E4
0.1E5
0.1E6
0.1E7
0.1E8
0.1E9
0.1E10
0.46454294919296E12
0.4294892378E12
0.42949672324294858116E16
/soft/ruby/build/t2.rb:3: [BUG] Segmentation fault
ruby 1.9.2dev (2010-05-07 trunk 27658) [i386-mswin32_90]
– control frame ----------
c:0009 p:---- s:0022 b:0022 l:000021 d:000021 CFUNC :to_s
c:0008 p:---- s:0020 b:0020 l:000019 d:000019 CFUNC :puts
c:0007 p:---- s:0018 b:0018 l:000017 d:000017 CFUNC :puts
c:0006 p:0033 s:0014 b:0014 l:00220c d:000013 BLOCK
/soft/ruby/build/t2.rb:3
c:0005 p:---- s:0011 b:0011 l:000010 d:000010 FINISH
c:0004 p:---- s:0009 b:0009 l:000008 d:000008 CFUNC :times
c:0003 p:0040 s:0006 b:0006 l:00220c d:00134c EVAL
/soft/ruby/build/t2.rb:3
c:0002 p:---- s:0004 b:0004 l:000003 d:000003 FINISH
c:0001 p:0000 s:0002 b:0002 l:00220c d:00220c TOP
– Ruby level backtrace information
/soft/ruby/build/t2.rb:3:in <main>' /soft/ruby/build/t2.rb:3:in times’
/soft/ruby/build/t2.rb:3:in block in <main>' /soft/ruby/build/t2.rb:3:in puts’
/soft/ruby/build/t2.rb:3:in puts' /soft/ruby/build/t2.rb:3:in to_s’
[NOTE]
You may have encountered a bug in the Ruby interpreter or extension
libraries.
Bug reports are welcome.
For details: http://www.ruby-lang.org/bugreport.html
This application has requested the Runtime to terminate it in an unusual
way.
Please contact the application’s support team for more information.
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bigdecimal.ce$B$Ne(BVpAlloce$B$K$$$$F!“e(Bbufe$B$,e(Bvolatilee$B@k8@$5$l$F$$$^$9$,!“BP1~$9$kNN0h$,:GE,2=$K$h$C$F:G8e$K;HMQ$5$l$?8e$K0c$&MQES$G:FMxMQ$5$l$F$$$k$?$ae(BGCe$BBP:v$H$7$F0UL#$r@.$7$F$$$^$;$s!#e(B
#e$B;d$N4D6-$G$Oe(Bif(szVal[i]==‘-’)e$B$N$”$?$j$G>e=q$-$5$l$F$$$^$7$?!#e(B
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Index: ext/bigdecimal/bigdecimal.c
— ext/bigdecimal/bigdecimal.c (e$B%j%S%8%g%se(B 27662)
+++ ext/bigdecimal/bigdecimal.c (e$B:n6H%3%T!<e(B)
@@ -2593,7 +2593,7 @@
int sign=1;
Real *vp = NULL;
U_LONG mf = VpGetPrecLimit();
- volatile VALUE buf;
-
VALUE buf;
mx = (mx + BASE_FIG - 1) / BASE_FIG + 1; /* Determine allocation
unit. /
if(szVal) {
@@ -2720,6 +2720,7 @@
vp->MaxPrec = mx; / set max precision */
VpSetZero(vp,sign);
VpCtoV(vp, &(szVal[ipn]), ni, &(szVal[ipf]), nf, &(szVal[ipe]),
ne); -
RB_GC_GUARD(buf);
return vp;
}