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Article #9354

Re: Len Weisberg's outbox problems (was Re: misalignment in summary with 100+ messages)

#9354
From: Len Weisberg
Date: Wed, 23 Oct 1991 01:58
51 lines
3199 bytes
Kyle writes:
> I need to see messages in your outbox before you visit them with
> VM.  Once the X-VM-v5-Data header has been stuffed with the "" in
> certain places, this means VM has already given up.  I need to
> track why VM can't find the date.  Send yourself a couple of
> messages and then mail me your outbox without visiting it.

I'm afraid it's not that simple.  As I have mentioned, this is a slippery
bugger. It started appearing suddenly in my outbox a few months ago,
and I can't see a pattern in which message are affected.
So ordinary use seems not to make it occur.  

After quite a bit of groping, I was able to produce an artificial situation
which resulted in a "" field.  That mailbox is attached below.
What is artificial is that there are no X-VM-v5-Data headers, but there is
a X-VM-VHeader and a slightly doctored X-VM-Bookmark .
There may be other combinations that produce this, but I've got to stop now.
It could very well be that some combinations of editting or saving messages
could get the headers out of sync in some way that resembles this
artificial mailbox in a crucial way, but that is only speculation.

Another important factor is that the "" field was *NOT* produced with
Kyle's "grok fixes" in place, although I do still occasionally get
nil-filled headers with the "grok fixes".

Meanwhile, with all this, I realized that with the grok-fixes in place, 
the only headers that harmed my summary display are those with "".
So I have "manually" cleaned up all my outboxes by removing the VM-v5
headers with a little perl program, and using Jamie's "stuff" trick,
which I have packaged in a little function 'vm-stuff-all .  With luck
the "" fields will not show up again because of the "grok" fixes and
this will actually work around my immediate problem.

So, in summary:
 - The "grok" fixes seem to belong in the next release.
 - I think there still may be a bug hidden in there, which takes some
    special conditions to expose.  This may result in nil-filled headers
    but will no longer spoil the summary display.
 - I have worked around the very annoying problem I have been having.
 - My fingers are crossed.

Thanks,

-Len

==============================================================================
Here's my doctored mailbox before visiting:


X-VM-VHeader: ("From:" "Sender:" "Resent-From" "To:" "Apparently-To:" "Cc:" "Subject:" "Date:" "Resent-Date:" "From" "From" "From" "From" "From") nil
X-VM-Bookmark: 3
Technical Details
Message-ID: <9110230158.AA21398@hpcc25.corp.hp.com>
Path: arc1-ca.pugleaf.net!gmdzi!unido!mcsun!uunet!wendy-fate.uu.net!bug-vm
References: <30920024@hpcc01.corp.hp.com> <9110181936.AA24784@wendy-fate.UU.NET> <9110220417.AA23473@rodan.UU.NET>

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X-Google-Language: ENGLISH,ASCII-7-bit
X-Google-Thread: f6829,5be9b4ed9406ab8
X-Google-Attributes: gidf6829,public
X-Google-ArrivalTime: 1991-10-23 17:33:46 PST
Path: arc1-ca.pugleaf.net!gmdzi!unido!mcsun!uunet!wendy-fate.uu.net!bug-vm
From: weisberg@hpcc25.corp.hp.com (Len Weisberg)
Newsgroups: gnu.emacs.vm.bug
Subject: Re: Len Weisberg's outbox problems (was Re: misalignment in summary with 100+ messages)
Message-ID: <9110230158.AA21398@hpcc25.corp.hp.com>
Date: 23 Oct 91 01:58:48 GMT
References: <30920024@hpcc01.corp.hp.com>
 <9110181936.AA24784@wendy-fate.UU.NET>
 <9110220417.AA23473@rodan.UU.NET>
Sender: bug-vm-request@uunet.uu.net
Reply-To: weisberg@corp.hp.com
Lines: 135