[Rd] supsmu produces segfault when handed all NAs. (PR#9519)
boe at demog.berkeley.edu
boe at demog.berkeley.edu
Mon Feb 19 06:43:13 CET 2007
When handed an argument with all NAs, supsmu() causes a
sigfault causing termination of R. The following example
reproduces the problem (on a linux gentoo system), but I have verified the
same behavior on a solaris builds as well as several versions of R.
x <- (1:100)/10;
y <- sin(pi*x) + rnorm(length(x));
tmp <- supsmu(x,y); # works
y[c(2,5,10)] <- NA; # a few NAs is OK, warning generated
tmp<- supsmu(x,y);
y<- NA + y; # all NAs
tmp <- supsmu(x,y); # oops
*** caught segfault ***
address 0xfffffff8, cause 'memory not mapped'
Traceback:
1: .Fortran(R_supsmu, as.integer(leno), as.double(xo),
as.double(y[ord]), as.double(wt[o
rd]), as.integer(iper), as.double(span), as.double(bass), smo =
double(leno), double(n * 7
), double(1))
2: supsmu(x, y)
Possible actions:
1: abort (with core dump)
2: normal R exit
3: exit R without saving workspace
4: exit R saving workspace
Selection:
--please do not edit the information below--
Version:
platform = i686-pc-linux-gnu
arch = i686
os = linux-gnu
system = i686, linux-gnu
status =
major = 2
minor = 4.1
year = 2006
month = 12
day = 18
svn rev = 40228
language = R
version.string = R version 2.4.1 (2006-12-18)
Locale:
LC_CTYPE=en_US.utf8;LC_NUMERIC=C;LC_TIME=en_US.utf8;LC_COLLATE=en_US.utf8;LC_MONETARY=en_US.ut
f8;LC_MESSAGES=en_US.utf8;LC_PAPER=en_US.utf8;LC_NAME=C;LC_ADDRESS=C;LC_TELEPHONE=C;LC_MEASURE
MENT=en_US.utf8;LC_IDENTIFICATION=C
Search Path:
.GlobalEnv, package:stats, package:graphics, package:grDevices,
package:utils, package:datase
ts, package:methods, Autoloads, package:base
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