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84462 discussions

Re: [PATCH] deferred trace
by Alexandre Julliard 07 Apr '01

07 Apr '01

eric pouech <eric.pouech(a)wanadoo.fr> writes: > using the Wine debugger (or any program using the debugging API) may > have some drawbacks. As the API is designed, it's not possible to > get control of the debugged program between its creation and its > entry point entering this makes very difficult to let the Wine > debugger trigger the expected features by poking the memory in the > debuggee. That's not exactly correct, the debugger can intercept the dll loads and break in the dll init code. Since with dll separation all Wine inits will be done inside dlls, the debugger should be able to intercept everything from the point we connect to the wineserver. -- Alexandre Julliard julliard(a)winehq.com

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Re: Nasty Wine/kernel bug, anyone?
by Ulrich Weigand 06 Apr '01

06 Apr '01

> If I were going to make more WAGs (Wild Assed guesses), > I'd hazard a guess that this was due to my Alsa sound system > (running on the AC97 codec on my Asus motherboard). > > I tried to walk the stack back, but didn't get very far > (after the first time of wrongly computing the hex offset > from a .s file, I gave off, stomped off to look > for a better disassembler and gave up). If you have the 'vmlinux' file, try objdump --disassemble vmlinux > My best guess is that we're coming through dentry_open > (xc012e7fe)/ chrdev_open (0xc012f66c) > /soundcore_open (0xc01bbf71). However, I wasn't > seeing a familiar EBP/EIP pattern, so I'm possibly just > pulling random symbols out of the air. Yes, this appears to the proper trace: c0108d7f system_call c012ea2c sys_open c012e732 filp_open c012e7fe dentry_open c012f66c chrdev_open c01bbf71 soundcore_open d0826a42 <module> d087ce3e <module> c0107aa4 __down_failed c010794f __down ........ schedule [I am assuming that you have 256MB main memory. Correct?] Now, the question is still, who is sleeping on that semaphore and why? >From the call trace, it would seem that some sound-related module is loaded, which does a down() on some semaphore in its open() routine. We even know which semaphore: cff267ac. (This does not help much, as this is would appear to be somewhere in kmalloc()ed memory ...) We can continue to track in two directions. First, we can try to locate the point within the Wine application where the open() syscall is performed. >From the trace we see that the system call instruction is located at 40303a24, and the stack pointer points to 405c6638. The system call itself is an open( 41610240, O_WRONLY|O_NDELAY ) [The stack pointer value is rather weird, I'd say ...] This particular open mode occurs in the Wine source only in dlls/winmm/wineoss/audio.c, which confirms the sound hypothesis. The next time you reproduce the bug, could you please add the output of /proc/<pid>/maps for the hanging Wine process? This way, we could further analyse these pointers to Wine user space ... The more promising way to track the problem, however, is to find out which module those d* addresses above reside in. If the modules are still loaded, the output of /proc/ksyms should at least give a hint. For a more refined symbol lookup, it is best to use the 'ksymoops' tool, which correlates the /proc/ksyms output with the ELF symbols read from the object modules themselves. To do so, write this: Call Trace: [<d0826a42>] [<d087ce3e>] to a file and pipe the file through ksymoops. In any case, this would seem to be clearly a bug in that sound module. I don't know, however, why only Wine would trigger that bug ... Bye, Ulrich -- Dr. Ulrich Weigand weigand(a)informatik.uni-erlangen.de

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Re: [PATCH] Name Thread Exception support in Wine debugger
by eric pouech 06 Apr '01

06 Apr '01

James Hatheway wrote: > > Hi guys, > > As I mentioned in an earlier email to the Devel mailing list, I discovered the > application I am supporting started raising more exceptions than usual. These > turned out to be an undocumented signal to the MS VC6 debugger to name the > current thread. You can read more about this at: > http://www.vcdj.com/upload/free/features/vcdj/2001/03mar01/et0103/et0103.asp > or searching google.com or deja.com for "0x406D1388". This patch fixes > the WINE debugger to handle this exception, just like MS VC6 debugger does. something seems wrong in your patch... the szName field from the exception field is never copied from the debugged program space to the debugger space (only the address is) so, you should use ReadProcessMemory instead (something like ReadProcessMemory(pThread->name, sizeof(pThread->name), DEBUG_CurrThread->process->handle, pThreadName->szName); ) also, I don't like the fact that you put the #define in a public header file and the exception struct definition inside the file it would make more sense to me if both were either public or private (I'd go for private, since those values don't seem to be defined in Windows' standard headers) A+ -- --------------- Eric Pouech (http://perso.wanadoo.fr/eric.pouech/) "The future will be better tomorrow", Vice President Dan Quayle

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WWN
by eric pouech 06 Apr '01

06 Apr '01

for personal reasons, I will no longer be able to write the WWN (and I haven't in the last couple of weeks) so, if someone wishes to take the job over, I'd be happy to help him (her) to set it up A+ -- --------------- Eric Pouech (http://perso.wanadoo.fr/eric.pouech/) "The future will be better tomorrow", Vice President Dan Quayle

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Re: [PATCH] deferred trace
by gerard patel 06 Apr '01

06 Apr '01

At 03:00 PM 14/03/2001 -0800, you wrote: <snip> >that the wine debugger can resolve, it is possible to meet the needs that >have been expressed. Expressed ? What I wanted is something short and simple, so I could help people on the news group. The use of my patch could be explained in *one* line and it would have worked with Wine right 'out of the box' :-)... something the internal debugger does not do anymore since a long time. I am afraid that this thing will be more complex to setup and to use that the debugger - something already too complex for many people. And well, I almost never use the debugger myself because it crashes at the slightest provocation so I don't feel much about saying people to use it. So in short, after all my 'needs' (helping ppl on the news group) are indeed specific :-) Gerard

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Re: Make PostScript driver less loquacious
by Dmitry Timoshkov 04 Apr '01

04 Apr '01

"Ian Pilcher" <ian.pilcher(a)home.com> wrote: > dlls/wineps/init.c, ppd.c > > Change some PS driver FIXMEs/MESSAGEs to WARNs I think it's not the time to do it. Those messages/fixme's help a lot to add missing page and bin type into psdrv: they are not complete now. And without message about missing fonts in ppd/afm it would be nightmare to track down problems with ps fonts at least for me.

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Newbie question...
by Elan Feingold 04 Apr '01

04 Apr '01

Hi, I have a 3rd party x86 DLL file, that I would like to use under Linux. I have read the documentation on the specmaker tool, which would seem to provide some help. The thing that makes my case a bit different is that I would like to use the DLL within a Linux native program, not a WineLib program (its just a command line application and I need it to be very lightweight). Im pretty sure the Wine code can help me out, but Im not sure what the easiest way to proceed is, and what parts I need to use. Thanks in advance, -elan

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T@x2001: Linuxport via Wine
by Joerg Mayer 04 Apr '01

04 Apr '01

Just found the following at the SuSE portal pages (German only): http://portal.suse.de/de/content/reports/tax2001.html Rough translation on the introductory paragraph: The program t@x by Buhl Data has been around for the Windows platform for some years. This year, the current version T@x2001 has been made available for the Linux OS for a first time. In order to do this the Windows emulator Wine was used. Wine allows using Windows applications running Linux. This emulator has been modified to work with t@x2001. The summary as far as Wine is concerned: The program should be more stable and faster. Does anyone know which modifications were made to wine? Ciao Jörg -- Joerg Mayer <jmayer(a)loplof.de> I found out that "pro" means "instead of" (as in proconsul). Now I know what proactive means.

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Re: Interesting Magic # exception understood by the MS debugger...
by Alexandre Julliard 03 Apr '01

03 Apr '01

"James Hatheway" <james(a)macadamian.com> writes: > OK, I don't know too much about the internals of the WINE debugger, so > here goes. Is there a field for this already, or should I make a new > field in DBG_THREAD structure? (I think that seems like the right place > for it) Yep, you can add a field there. -- Alexandre Julliard julliard(a)winehq.com

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Re: Interesting Magic # exception understood by the MS debugger...
by Alexandre Julliard 03 Apr '01

03 Apr '01

"James Hatheway" <james(a)macadamian.com> writes: > For now, I put the little hack I attached to this mail in my tree to > save my sanity. My question to the list is, (A) is there a way to name > threads in Linux/Unix (I don't think so, but of course I could be wrong) No, and we don't need that. > and (B) should we support MS's hack somehow in the official tree? Yes, in the Wine debugger, which should store the name and simply continue execution, just like the MSVC debugger does. -- Alexandre Julliard julliard(a)winehq.com

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