Dynamically adding debug channels (__wine_dbg_set_channel_flags)

[Roderick Colenbrander]

On Wed, May 13, 2009 at 9:15 PM, Daniel Santos <javatroubadour at yahoo.com> wrote:
> Steven, sorry for the slow response, I got tied up in some other stuff.  But
> now back to fun. =)  And thanks for your response!
>
> The application is Lord of the Rings Online.  They don't use normal version
> numbers, so this bug actually started with "Book 14".  In Book 14, the
> problem would manifest as a crash.  The current version is "Mines of Moria"
> and now I will get either a crash (segfault) or a hang, but the result is a
> hang 6 times out of 7 (or so).
>
> However, I've run into a more serious problem that I have yet to resolve,
> and I'll post it in a new thread.  This problem is related to what is
> considered acceptable behavior and what is not and what is considered
> "reverse engineering".  I mentioned that I had the program in winedbg and
> was examining the threads when I was informed that I was reverse engineering
> and any patch I came up with doing this would not be accepted.  I found this
> rather confounding to say the least!!
>
> Anyway, the hang or crash may occur immediately (under 50 milliseconds)
> after switching to the LOTRO window or it may only occur after I start
> moving around.  It will always occur within 10 or 20 seconds of having
> switched to the window, usually within 4 or 5.  So if I start playing after
> swithcing to the window and I make it 30 seconds, I'm confident that it wont
> crash that time.
>
> If you want to install this app, I have recently written up a pretty install
> script to do some enviroment setup and posted it on the appdb here:
>
> http://appdb.winehq.org/objectManager.php?sClass=version&iId=14566
>
> You can even create a trial account for testing.  Unfortunately, it's a 7GB
> download.  One of my shortcomings in troubleshooting this is that I've never
> done directx or direct3d, so I don't understand all of the implications of
> these window events from that perspective (or direct input).  I'm going to
> play more with this today as well.
>
> Daniel
>
> --- On Sat, 5/9/09, Steven Edwards <winehacker at gmail.com> wrote:
>
> From: Steven Edwards <winehacker at gmail.com>
> Subject: Re: Dynamically adding debug channels
> (__wine_dbg_set_channel_flags)
> To: daniel.santos at pobox.com
> Date: Saturday, May 9, 2009, 3:16 PM
>
> On Sat, May 9, 2009 at 3:44 PM, Daniel Santos <javatroubadour at yahoo.com>
> wrote:
>> Additionally, as far as I can tell, there is no mechanism to change it for
>> all channels.  This is actually what I need to do since I do not know
>> where
>> the specific problem is that I'm troubleshooting and I don't even know for
>> certain that it isn't a bug in the 3rd party software.  What I do know is
>> that it does not occur on windows and I suspect it's a case of the 3rd
>> party
>> app entering "undefined results" territory and that on windows, this
>> result
>> is consistent and does not cause a problem.
>>
>> When I attempt to run the app with WINEDEBUG=+all, it appears to enter
>> some
>> type of deadlock state before I can even get to the point where the bug
>> normally happens.  This hang is probably due to poor timing management in
>> the app and may indeed be another expression of the same core problem.
>>
>> Speaking of the wine task manager, where is that? (or which executable is
>> it)?
>
> Its taskmgr in the source tree as wine/programs/taskmgr.
>
> You might try doing something like +relay,+seh,+tid for your channels
> to isolate the problem down. I might be able to help you isolate the
> problem but I doubt I can fix it for you even if we are able to find
> it but that's at least a start. What software are you trying to get to
> work? Can you describe the exact nature of the problem? Sorry I must
> confess I've not been following the thread very closely.
>
> --
> Steven Edwards
>
> "There is one thing stronger than all the armies in the world, and
> that is an idea whose time has come." - Victor Hugo
>
>
>
>
>

You might also want to check the debug patch in here:
http://wiki.winehq.org/InterestingPatches
It allows you to enable debugging when you need it by
ahttp://wiki.winehq.org/InterestingPatches keypress. E.g.
WINEDEBUG=+some_channel (except for +all) WINEDELAY=enable wine
app.exe

Roderick