Re: gcc-mark-as-read sometimes broken on Exchange

[david.goldberg6@verizon.net (Dave Goldberg)]

>> After successfully appending the article into the group, we get to this
>  code:

>> (cons group
>> (or (nnimap-find-uid-response "APPENDUID" (car result))
>> (nnimap-find-article-by-message-id
>> group message-id)))))))))

>> And both return nil.  Unfortunately, I'm not sure which one is returning successfully when it does work because I wasn't stepping through nnimap-request-accept-article at the time.  I'll keep stepping through everything but it seems that it takes several tries before I hit the bug, once I do I hit it all the time.  On the plus side, I now know exactly which function to debug so I'll save a bit of time with further stepping.

> So now I know - Exchange does not return APPENDUID like cyrus does so
> the first check always fails on Exchange.  It appears that sometimes
> the find-by-message-id works, and sometimes it doesn't.  I seem to
> recall that the last time this sort of problem with gcc came up it had
> something to do with CRLF handling.  Did anything change with that in
> the past month?  It's bizarre that it's inconsistent.

It appears to be some sort of race condition.  If I step through nnimap-find-article-by-message-id I succeed all the time.  If I get impatient and press 'c' to continue through the function without stopping then some percentage of the time (I didn't really keep track) the function returns nil.

-- 
Dave Goldberg
david.goldberg6@verizon.net