New subject: [Bug 35928] Crash handlers/debuggers fail to display user-interface when invoked for crashing (non-interactive) service processes (inherited Wine service window station/desktop)

5 Apr 2014


      https://bugs.winehq.org/show_bug.cgi?id=35928
Bug ID: 35928
           Summary: Crash handlers/debuggers fail to display
                    user-interface when invoked for crashing
                    (non-interactive) service processes (inherited Wine
                    service window station/desktop)
           Product: Wine
           Version: 1.7.16
          Hardware: x86
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: -unknown
          Assignee: wine-bugs@winehq.org
          Reporter: focht@gmx.net
Hello folks,
bug 35924 is about a crash in a win32 service which triggers 'winedbg'
just-in-time debugger/crash handler.
Unfortunately 'winedbg' fails to bring up its user interface hence you don't
get a chance to see/save the crash info.
The win32 service is connected to Wine's default service window station and
desktop '__wineservice_winstation\Default' objects (invisible).
--- snip ---
$ pwd
/home/focht/.wine/drive_c/Program Files/Echobit/Evolve
...
$ WINEDEBUG=+tid,+seh,+relay,+win,+user,+server wine ./EvolveClient.exe
...
...
log.txt 2>&1
...
0043: new_process( inherit_all=0, create_flags=00000400, socket_fd=41,
exe_file=00f4, process_access=001fffff, process_attr=00000000,
thread_access=001fffff, thread_attr=00000000, cpu=x86, info_size=844,
info={debug_flags=0,console_flags=0,console=0000,hstdin=ffffffff,hstdout=ffffffff,hstderr=0004,x=0,y=0,xsize=0,ysize=0,xchars=0,ychars=0,attribute=00,flags=0,show=0,curdir=L"C:\windows\",dllpath=L"C:\windows\system32;.;C:\windows\system32;C:\windows\system;C:\windows;C:\windows\system32;C:\windows;C:\windows\system32\wbem",imagepath=L"C:\Program
Files\Echobit\Evolve\EvoSvc.exe",cmdline=L""C:\Program
Files\Echobit\Evolve\EvoSvc.exe" -service -logfile
"C:\users\Public\Application
Data\Echobit\Evolve\EvoSvc.log"",title=L"C:\Program
Files\Echobit\Evolve\EvoSvc.exe",desktop=L"__wineservice_winstation\Default",...
)
0043: *fd* 01c6 -> 232 
...
0045: create_winstation( flags=00000000, access=0000037f, attributes=000000c0,
name=L"__wineservice_winstation" )
0045: create_winstation() = OBJECT_NAME_EXISTS { handle=0050 }
0045: set_process_winstation( handle=0050 )
0045: set_process_winstation() = 0
0045: create_desktop( flags=00000000, access=000001ff, attributes=000000c0,
name=L"Default" )
0045: create_desktop() = OBJECT_NAME_EXISTS { handle=0054 }
0045: set_thread_desktop( handle=0054 )
0045: set_thread_desktop() = 0 
...
0045:Call advapi32.StartServiceCtrlDispatcherW(0033fd74) ret=0042d7e1
0045:trace:seh:raise_exception code=c0000005 flags=0 addr=0x7edb86ca
ip=7edb86ca tid=0045
0045:trace:seh:raise_exception  info[0]=00000000
0045:trace:seh:raise_exception  info[1]=00000003
0045:trace:seh:raise_exception  eax=00000003 ebx=7ede1000 ecx=0051810a
edx=00000008 esi=0033fd30 edi=0033fd34
0045:trace:seh:raise_exception  ebp=0033fca8 esp=0033fc98 cs=0023 ds=002b
es=002b fs=0063 gs=006b flags=00010202
0045:trace:seh:call_stack_handlers calling handler at 0x50bbf0 code=c0000005
flags=0
0045:Call KERNEL32.GetLastError() ret=78ab0706
0045:Ret  KERNEL32.GetLastError() retval=000000b7 ret=78ab0706
0045:trace:seh:call_stack_handlers handler at 0x50bbf0 returned 1
0045:trace:seh:call_stack_handlers calling handler at 0x4a1269 code=c0000005
flags=0
0045:Call KERNEL32.GetLastError() ret=78ab0706
0045:Ret  KERNEL32.GetLastError() retval=000000b7 ret=78ab0706
0045:trace:seh:call_stack_handlers handler at 0x4a1269 returned 1
0045:trace:seh:call_stack_handlers calling handler at 0x7bc9ebbf code=c0000005
flags=0
0045:Call KERNEL32.UnhandledExceptionFilter(0033f764) ret=7bc9ebf9
0045: create_event( access=001f0003, attributes=00000002, manual_reset=1,
initial_state=0, objattr={rootdir=0000,sd={},name=L""} )
0045: create_event() = 0 { handle=0084 }
wine: Unhandled page fault on read access to 0x00000003 at address 0x7edb86ca
(thread 0045), starting debugger...
...
0045:trace:seh:start_debugger Starting debugger "winedbg --auto 68 132" 
...
0045: new_process( inherit_all=1, create_flags=00000400, socket_fd=12,
exe_file=0088, process_access=001fffff, process_attr=00000000,
thread_access=001fffff, thread_attr=00000000, cpu=x86, info_size=556,
info={debug_flags=0,console_flags=0,console=0000,hstdin=0004,hstdout=0008,hstderr=000c,x=0,y=0,xsize=0,ysize=0,xchars=0,ychars=0,attribute=00,flags=1,show=1,curdir=L"C:\windows\",dllpath=L"C:\Program
Files\Echobit\Evolve;.;C:\windows\system32;C:\windows\system;C:\windows;C:\windows\system32;C:\windows;C:\windows\system32\wbem",imagepath=L"C:\windows\system32\winedbg.exe",cmdline=L"winedbg
--auto 68
132",title=L"C:\windows\system32\winedbg.exe",desktop=L"",shellinfo=L"",runtime=L""}...
0045: *fd* 01c6 -> 239 
0045: new_process() = 0 { info=008c, pid=0046, phandle=0090, tid=0047,
thandle=0094 }
...
0045: select() = PENDING { timeout=infinite, call={APC_NONE}, apc_handle=0000 }
0047: *fd* 5 <- 239
0047: *fd* 7 <- 240
0047: init_thread( unix_pid=28628, unix_tid=28628, debug_level=1, teb=7ffd8000,
entry=7ffdf000, reply_fd=5, wait_fd=7, cpu=x86 )
0047: init_thread() = 0 { pid=0046, tid=0047, server_start=1cf50cde49be514
(-74.1316280), info_size=1744, version=454, all_cpus=00000001 }
0047:Call user32.LoadCursorW(00000000,00007f00) ret=f72ceb04
0047:Call user32.GetDesktopWindow() ret=f706cd2f
0047: get_desktop_window( force=0 )
0047: get_desktop_window() = 0 { top_window=00000000, msg_window=00000000 }
0047: get_process_winstation( )
0047: get_process_winstation() = 0 { handle=0010 }
0047: set_user_object_info( handle=0010, flags=00000000, obj_flags=00000000 )
0047: set_user_object_info() = 0 { is_desktop=0, old_obj_flags=00000000,
name=L"" }
0047:trace:win:GetDesktopWindow not starting explorer since winstation is not
visible
0047: get_desktop_window( force=1 )
0047: get_desktop_window() = 0 { top_window=00010058, msg_window=0001005a } 
...
0047:Call KERNEL32.LoadLibraryA(7ede80e6 "user32.dll") ret=7edcf276
0047:Ret  KERNEL32.LoadLibraryA() retval=f7160000 ret=7edcf276
0047:Call KERNEL32.GetProcAddress(f7160000,7ede8142 "DialogBoxParamW")
ret=7edcf2ae
0047:Ret  KERNEL32.GetProcAddress() retval=f7162da0 ret=7edcf2ae
0047:Call user32.DialogBoxParamW(7eda0000,00000064,00000000,7eda9fb7,00000000)
ret=7edaa856
...
0047:trace:win:WIN_CreateWindowEx L"Program Error" #8002 ex=00010001
style=80c800cc 3406512,3407044 279x241 parent=(nil) menu=(nil) inst=0x7eda0000
params=(nil)
0047:trace:win:dump_window_styles style: WS_POPUP WS_CAPTION WS_SYSMENU
000000cc
0047:trace:win:dump_window_styles exstyle: WS_EX_DLGMODALFRAME
WS_EX_CONTROLPARENT 
...
0047: create_window( parent=00010058, owner=00000000, atom=8002,
instance=7eda0000, class=L"" )
0047: create_window() = 0 { handle=00010066, parent=00010058, owner=00000000,
extra=30, class_ptr=0012ed18 } 
...
0047:Call window proc 0xf71880b7
(hwnd=0x10066,msg=WM_NCCREATE,wp=00000000,lp=0033f8e0)
0047:trace:win:WIN_SetWindowLong 0x10066 0 0 W
0047: set_window_text( handle=00010066, text=L"Program Error" )
0047: set_window_text() = 0
0047:Ret  window proc 0xf71880b7 
...
0047:Call window proc 0xf71880b7
(hwnd=0x10066,msg=WM_CREATE,wp=00000000,lp=0033f8e0)
0047:trace:win:WIN_SetWindowLong 0x10066 0 0 W
0047:Ret  window proc 0xf71880b7
(hwnd=0x10066,msg=WM_CREATE,wp=00000000,lp=0033f8e0) retval=00000000
Application tried to create a window, but no driver could be loaded.
The explorer process failed to start.
0047:trace:win:WIN_DestroyWindow 0x10066 
...
--- snip ---
When 'winedbg' is spawned from crashing non-interactive win32 service process
it inherits the parent window station object.
Not sure how this scenario should be handled .. making an exception and giving
'winedbg' the default interactive window station/desktop or forcing 'winedbg'
to non-ui mode to have at least a console trace?
$ sha1sum EvolveSetup.exe 
0c9f92f1ed5f97bced68c1185525dfe78900f795  EvolveSetup.exe
$ du -sh EvolveSetup.exe 
3.2M    EvolveSetup.exe
$ wine --version
wine-1.7.16
Regards
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[Bug 35928] New: Crash handlers/debuggers fail to display user-interface when invoked for crashing (non-interactive) service processes (inherited Wine service window station/desktop)