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From Jeff Trawick <>
Subject Re: SSL segfault on HEAD
Date Fri, 20 Dec 2002 12:51:00 GMT
Cliff Woolley <> writes:

> On Thu, 19 Dec 2002, Scott Lamb wrote:
> > HEAD (as of sometime yesterday) is segfaulting on me. Stack trace below.
> > This happens on all SSL requests; others seem fine. This on Linux with
> > RedHat's openssl-0.9.6b-28.
> >
> > I'm wondering if this has anything to do with the ssl changes on the
> > 14th. They touched ssl_engine_io.c, though there's no immediate culprit
> > to my (uneducated) eye.
> >
> > The particular revs I've got:
> >
> >      ssl_engine_io.c      1.102
> >      apr_buckets_simple.c 1.41
> >      apr_buckets_alloc.c  1.8
> Sigh.  Wonder if this is related to what FirstBill saw earlier today with
> the proxy?  Seeing as nothing has changed in the buckets code any time
> recently... OHHHHHHHH WAIT, yes it has.  Brian apparently committed a
> change to allocate the apr_bucket_brigade itself out of the brigade
> allocator.  I'm not yet convinced whether that's valid or not, but
> regardless, that change (either a bug in it or a flaw elsewhere that it
> triggered) is almost certain to be what's triggered these segfaults.

I'm seeing a couple of different segfaults in regression tests on AIX
running stable head and APR HEAD and apr-util HEAD for at least the
last few days:

  gcc build, simple proxy test segfaults
  xlc build, incomplete POST requests, maybe others (too many cores to
    keep track of)

Sometime today I'll try to back up to a prior level of apr-util and
see if the problem still occurs.  Just looking at CHANGES in stable,
probably nothing has changed in Apache since the point at which it was
working fine.

Jeff Trawick |
Born in Roswell... married an alien...

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