[Zope] zope_msg.log Message

[Kevin Littlejohn]

Not convinced that's it tho.

Side-note:  I've patched ZServer/medusa/asynchat.py line 255 - the 'first'
method - to check if self.list actually has anything on it before
returning:

        def first (self):
                if self.list:
                        return self.list[0]
                else:
                        return None

Since I did that, I haven't been able to reproduce the crash.  I doubt
that's the problem as such - I'm still leaning toward a race condition
somewhere - but the fact that it hasn't crashed since then is curious...

Oh, and strace'ing and adding debug and so forth seems to cause the problem
to display subtly different behaviour - which makes me unhappy...

KevinL
(I found that after getting a traceback while running under 'python -i')

>>> Martijn Pieters wrote
> On Sun, Mar 26, 2000 at 10:02:59AM -0500, Cary O'Brien wrote:
> > Wild idea: Do you ever get errors when you try to compile a big, big
> > program, specifically the Linux kernel?  It seems as if a large number
> > of seemingly perfectly functioning PCs have memory errors that only
> > show up under specific, not well known access patterns.  Compiling a
> > big program is a process that can exhibit these error prone
> > patterns[1][2].  Perhaps Zope under load causes the same access
> > patterns?
> > 
> > [1] This is not an urban legend.  I have seen it.
> > [2] Search for gcc and signal-11 or sigsegv.  There are a couple of
> >     web pages out there about this.
> 
> I get them constantly when recompiling Mozilla, which is a daily task almost.
> And bad_slab_magic, and random segv's.
> 
> I'll be running a good memory stress test soon, to see if I can pinpoint the
> offending Mem. bank.
> 
> -- 
> Martijn Pieters
> | Software Engineer    mailto:mj@digicool.com
> | Digital Creations  http://www.digicool.com/
> | Creators of Zope       http://www.zope.org/
> |   The Open Source Web Application Server
> ---------------------------------------------
> 
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--------------- qnevhf@obsu.arg.nh ---------------
Kevin Littlejohn,
Technical Architect, Connect.com.au
Don't let the Govt censor our access to the 'net -
http://www.efa.org.au/Campaigns/stop.html