Hi Emanuele,
After poking around a bit, there seems to be a logical problem in Wine's GDI code. From the backtrace, SelectObject on this object calls BRUSH_SelectObject, which uses a bitmap and eventually GetDIBits, which tries to CreateCompatibleDC (or sometimes DeleteDC instead). However, SelectObject always calls GDI_GetObjPtr, which calls _EnterSysLevel and not _LeaveSysLevel. But the CreateCompatibleDC complains and dies if you have had an _EnterSysLevel and not a _LeaveSysLevel.
It might be that BRUSH_SelectObject really should use a different set of "internal" functions that won't complain about locking. Or maybe DeleteDC and CreateCompatibleDC should just increment the recursion level instead of erroring out. I don't know, so I'm forwarding to wine-devel for greater insight.
- Walter
Here's a summary of the relevant part of my backtrace again:
1 _CheckNotSysLevel (complains!) 2 GDI_CheckNotLock 3 DeleteDC 4 GetDIBits 5 MFDRV_CreateBrushIndirect 6 MFDRV_SelectBrush 7 BRUSH_SelectObject 8 SelectObject - calls GDI_GetObjPtr, which does _EnterSysLevel.
On Thu, 28 Oct 2004, Emanuele Gissi wrote:
Hi, I really did my best to understand how I can help improving Wine, but I did not succed.
Well, everything started when I installed a win application on my Debian 3.1, Wine 2004.07.16 deb (clean install, no dlls).
The application is ALOHA (http://www.epa.gov/ceppo/cameo/aloha.htm) It's a free application from US-Environment Protection Agency used for chemical emergency planning (I am an officer firefighter).
On Wine it has a problem that prevents its wide use. After having entered all the needed data (or loading the included prova.alo example in "planning mode"), Wine crashes when tring to show the chemical footprint result.
The application works perfectly on Codeweavers Crossover Office 3.0.1 (trial). And I am ready to buy it (as they support the free Wine, I think.)
But I would like to understand why it does not work on Wine!
The included log finishes with this: [...] warn:heap:HEAP_ValidateInUseArena Heap 40360000: invalid in-use arena magic for 403bd120 warn:heap:HEAP_ValidateInUseArena Heap 40360000: invalid in-use arena magic for 403b46f0 warn:heap:HEAP_ValidateInUseArena Heap 40360000: invalid in-use arena magic for 403b6948 warn:heap:HEAP_ValidateInUseArena Heap 40360000: invalid in-use arena magic for 403b1570 warn:heap:HEAP_ValidateInUseArena Heap 40360000: invalid in-use arena magic for 403b11c0 warn:gdi:GDI_GetObjPtr Invalid handle (nil) warn:gdi:GDI_GetObjPtr Invalid handle (nil) warn:gdi:GDI_GetObjPtr Invalid handle (nil) err:syslevel:_CheckNotSysLevel Holding lock 0x408f15e0 level 3 wine: Unhandled exception (thread 0009), starting debugger...
- What should I do next time I encounter a similar problem with an app? That
is: how to use winedbg? 2) Why does ALOHA work on Crossover and not on Wine? 3) Which are the main differences between Crossover and Wine? 4) Does Codewaver really contribute back to Wine?
I thank you in advance.
(Please, CC: me as I am not on the list for now)
Ing. Emanuele Gissi - Ispettore Antincendio Comando Provinciale dei Vigili del Fuoco di Ravenna viale Randi, 25 - 48100 Ravenna - Italia tel: 0544 281.501 - fax: 0544 281.531