Re: Crash in tinymail demo UI

[Philip Van Hoof <spam pvanhoof be>]

These crashes are caused by camel's cancellation (which I haven't yet
fixed but have been looking at -- it's mostly locking problems in the
camel providers --).

I do know, however, that if you are offline .. that you will most likely
experience less such problems.


On Mon, 2006-11-20 at 22:02 +0800, David Adam wrote:
> Hi all,
> 
> Some time ago I opened a ticket in Trac reporting that I was able to make
> Tinymail's demo ui crash easily and repeatably. Unfortunately, I
> disappeared to sit my exams before we could get to the bottom of it.
> 
> Having emerged again, I've synced my SVN tree up and have built the
> tinymail demo UI from source on a Debian 4.0 (testing/unstable).
> 
> I should point out that there are a few odd things about my testing setup;
> I'm running the UI over X11 forwarding to an off-site Windows machine, as
> my build/test machine doesn't have an X server. I'm attaching the demo UI
> to a Dovecot IMAP server, which has about fifteen folders and up to 300
> messages in some of the folders.
> 
> My build log is at:
>    http://www.ucc.asn.au/~zanchey/tinymail/build.txt
> 
> I can reproducibly crash the Tinymail demo UI by starting the program and
> logging in to the IMAP server. I then expand the folder tree, and hold the
> down key to scroll all the way down the folder tree. When I hit the
> bottom, I hold the up key; and so on and so forth.
> 
> Within a matter of seconds or minutes, tinymail exits on a segmentation
> fault.
> 
> The console output, and a thread backtrace using GDB on the core file, is
> available at:
>    http://www.ucc.asn.au/~zanchey/tinymail/run.13968.txt
> 
> I would make the core file available, except it's 2.5GB in size - if you
> would like me to run further GDB investigation, please let me know.
> 
> I should point out that I have previously been able to get the UI program
> to crash in a few different places, including one where it gobbles the
> entire stack on every useful thread, so I'm referring to this particular
> issue by the PID 13968.
> 
> Anyway, take a look, and see if you think it's a bug. If anyone needs more
> information, I'm subscribed to the list. Philip or others - if you'd like
> access to the core file, I might be able to sort you out temporary SSH
> access to one of the machines here.
> 
> Thanks,
> 
> David Adam
> zanchey ucc gu uwa edu au
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-- 
Philip Van Hoof, software developer
home: me at pvanhoof dot be
gnome: pvanhoof at gnome dot org
work: vanhoof at x-tend dot be
blog: http://pvanhoof.be/blog