Random err:winediag:nulldrv_CreateWindow errors related to windows and explorer

[Sebastian Lackner]

Hi Bruno,

I think this issue already exists since a long time - for example after
running the user32/winstation tests.
I personally have not noticed that the probability has increased, but like
with all random issues, even a
small delay / speedup can make it more or less likely to trigger such a
random issue. If you can
reproduce it reliable enough, it would be nice if you could try to do a
bisect (by running the corresponding
app/tests several times). The "bad" commit could be completely unrelated
though.

BTW: After Qian pointed out the problem with explorer.exe process leaks
some weeks ago, I've started
preparing patches for winstation and desktop cleanup. They also fix some
race-conditions, but in their
current form I would consider them too experimental to be merged. Also,
there are still a few unfixed
problems left.

Regards,
Sebastian


2015-12-01 20:20 GMT+01:00 Bruno Jesus <00cpxxx at gmail.com>:

> I believe that since code freeze started (or maybe 1.7.55) a random
> behavior was introduced related to these 2 messages:
>
> err:winediag:nulldrv_CreateWindow Application tried to create a
> window, but no driver could be loaded.
> err:winediag:nulldrv_CreateWindow The explorer process failed to start.
>
> Sometimes together there is also:
> err:ole:apartment_createwindowifneeded CreateWindow failed with error 0
>
> I'm not seeing this alone. at November 23 there was a mention to it in
> bug https://bugs.winehq.org/show_bug.cgi?id=39384 and also in December
> 1 there was a mention at bug
> https://bugs.winehq.org/show_bug.cgi?id=39057
>
> The issue seems to manifest more when the computer is heavily loaded
> (cpu/ram).
>
> I believe a regression test to be very hard since the issue is random,
> sorry.
>
> Is anyone else affected by this? I'm still affected with today's git.
>
> Best wishes,
> Bruno
>
>
>
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