Path: utzoo!mnetor!uunet!seismo!sundc!pitstop!sun!amdcad!ames!mailrus!umix!umich!mibte!gamma!sabre!faline!bellcore!u1100a!krohn
From: krohn@u1100a.UUCP (Eric Krohn)
Newsgroups: comp.sources.bugs
Subject: Re: perl patch 18 the diff of correct and managled version
Message-ID: <1823@u1100a.UUCP>
Date: 22 Feb 88 22:44:31 GMT
References: <294@ditmela.oz>
Reply-To: krohn@u1100a.UUCP (Eric Krohn)
Organization: Bell Communications Research, Piscataway, NJ
Lines: 20

In article <294@ditmela.oz> worsley@ditmela.oz (Andrew Worsley) writes:
] 
] ........            Now everything compiles, only perl dumps core in the
] middle of TEST. It complains about a Corrupt malloc pointer. Can anyone 
] respond if they get perl dumping core on the same test?

I too noticed this problem and spent last Saturday tracking it down.
The problem is in the new size given to the second GROWSTR in str_gets.
The previous weekend I tracked down the problem with the test script
t/op.unshift.  This was caused by aunshift not keeping the old array size 
before calling astore and having it resize the array.  Both bugs cause malloc 
arena overwrite problems.  I mailed fixes to Larry Wall, so hopefully we will
see official patches for them soon.
(Larry, you did get the mail, didn't you?  E-mail being what it is :-)

-- 
--
Eric J. Krohn
krohn@ctt.ctt.bellcore.com  or  {allegra,bellcore,ihnp4}!u1100a!krohn
Bell Communications Research,	444 Hoes Ln,    Piscataway, NJ 08854