Note: This bug is displayed in read-only format because
the product is no longer active in Red Hat Bugzilla.
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The problem can be seen by running the following script.
$ more ks6f3
#!/bin/ksh
function vlfunc {
print "begin vlfunc"
typeset IFS="$IFS"
while read line
do
:
done < /dev/null
print "$( vlsub_func )"
print END
}
function vlsub_func {
print "begin vlsub_func"
vlsub_sub_func
IFS="DEF"
vlsub_sub_func
print "end vlsub_func"
return
}
function vlsub_sub_func {
print "begin vlsub_sub_func"
IFS="abc"
print "end vlsub_sub_func"
}
########################################
# run main, set up clean exit
#
IFS="hold"
vlfunc
vlfunc
vlfunc
[vern@vernsf2 test-ksh]$ ./ks6f3
begin vlfunc
begin vlsub_func
begin vlsub_sub_func
end vlsub_sub_func
begin vlsub_sub_func
end vlsub_sub_func
end vlsub_func
END
begin vlfunc
Segmentation fault (core dumped)
[vern@vernsf2 test-ksh]$
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
http://rhn.redhat.com/errata/RHBA-2011-1647.html
The problem can be seen by running the following script. $ more ks6f3 #!/bin/ksh function vlfunc { print "begin vlfunc" typeset IFS="$IFS" while read line do : done < /dev/null print "$( vlsub_func )" print END } function vlsub_func { print "begin vlsub_func" vlsub_sub_func IFS="DEF" vlsub_sub_func print "end vlsub_func" return } function vlsub_sub_func { print "begin vlsub_sub_func" IFS="abc" print "end vlsub_sub_func" } ######################################## # run main, set up clean exit # IFS="hold" vlfunc vlfunc vlfunc [vern@vernsf2 test-ksh]$ ./ks6f3 begin vlfunc begin vlsub_func begin vlsub_sub_func end vlsub_sub_func begin vlsub_sub_func end vlsub_sub_func end vlsub_func END begin vlfunc Segmentation fault (core dumped) [vern@vernsf2 test-ksh]$