Hi,
I'm using ksh to run some scripts that generate java code. INormally I
would run these scripts on a Solaris (thus the ksh) but it's so much
faster on my Linux box... :-)
Anyway, today I got one script which is crashing ksh !!!
~/javaSDK/generate> sdk SQLViewEntity
SQLViewEntity...
Memory fault (core dumped)
Now I don't publish this script here because I can't (it's
copyrighted), because when on it's own this script does not crash ksh,
it does when invoked by the other scripts, and because I could not
isolate the cause of the crash. It involves a for loop with an empty
list of parameters, accessing ${12}. Well, maybe I could send the
scripts to someone interested in debugging this though.
But basically it seems to execute some code inside a loop where it
should not go since there is nothing to iterate on (for i in ; do ....;
done). I say that because by changing what's inside the loop I get it
not to crash anymore. Now I cannot pinpoint what I have to remove. T
here are many unrelated things I can remove that fix that (but my
script no longer does what it's supposed to).
So I downloaded the source code, compiled it, and run my script with
the compiled code and... it does not crash ! So there is nothing I can
debug unfortunately. Now the ksh I get (after stripping) is different
from what I have installed on my machine, although they are both from
the same package version (maybe the compiler is slightly different).
I feel the ksh in the distribution should be fixed. But how ?
I can send the core file to anyone who asks, all gdb tells me is:
Core was generated by `ksh ./450s.MIRXxx.ulinks.java'.
Program terminated with signal 11, Segmentation fault.
#0 0x400516c3 in ?? ()
A simple recompilation probably is not enough. I believe the core dump
is caused by writing or reading past the end of some array/string so
the bug might seem to go away with a recompilation but would come back.
I have:
- a recent hamm installation (less than 1 week old)
- ii pdksh 5.2.13-3 A public domain version of the
Korn shell
- pdksh_5.2.13.orig.tar.gz -> the source code
- pdksh_5.2.13-3.diff.gz -> the debian patches
--
Francois Gouget
[EMAIL PROTECTED] -- http://www.mygale.org/~fgouget/
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