more debugger issues

[Chipzz]

Hi all!

As a saw a few updates to the debugger a couple of days ago, I decided
to give the debugger another go. The problem with the stack trace is
gone now, but now I get another problem when I attach to a running
process, set a breakpoint and continue, the program crashes. When I in-
stead don't set a breakpoint and continue, the program keeps running
"fine":

When setting the breakpoint:

chipzz at Vector:~/.wine-clean/win/dotnet.inst$ winedbg
fixme:console:SetConsoleCtrlHandler (0x4059e880,1) - no error checking or testing yet
Wine-dbg>info process
 pid      threads  parent   executable (all id:s are in hex)
 00000008 4        00000000 'H:\.wine-clean\win\dotnet.inst\install.exe'
Wine-dbg>attach 8
fixme:dbghelp:addr_to_linear Failed to linearize address 8000:00000000 (mode 0)
In 32 bit mode.
Wine-dbg>bt
Backtrace:
=>1 0x40107b4b __read+0x4b in libc.so.6 (0x40307c54)
  2 0x401cc472 NTDLL_wait_for_multiple_objects+0x122 in ntdll (0x40307cf8)
  3 0x401ca9dc vm86_return_end+0xc55 in ntdll (0x40307d1c)
  4 0x40067678 (0x423bcc4c)
  5 0x401cc472 NTDLL_wait_for_multiple_objects+0x122 in ntdll (0x423bccf0)
  6 0x401cc4e6 NtWaitForMultipleObjects+0x66 in ntdll (0x423bcd18)
  7 0x404e25a5 WaitForMultipleObjectsEx+0xb5 in kernel32 (0x423bce48)
  8 0x40cd54cc X11DRV_MsgWaitForMultipleObjectsEx+0x5c in x11drv (0x423bcf80)
  9 0x408d9294 MsgWaitForMultipleObjectsEx+0x134 in user32 (0x423bd128)
  10 0x408d9351 MsgWaitForMultipleObjects+0x41 in user32 (0x423bd148)
  11 0x4163b91a (0x40915980)
  12 0x7d8920ec (0x83e58955)
fixme:dbghelp:addr_to_linear Failed to linearize address 8000:00000000 (mode 0)
  13 0x8000:0x0000 (0x11b7:0x0800)
  14 0x8000:0x0800 (0x11b7:0x0000)
Wine-dbg>break MessageBoxA
err:dbghelp:pe_load_dbg_file -Unable to peruse .DBG file ole32.dbg ("H:\\.wine-clean\\win\\dotnet.inst")
err:dbghelp:pe_load_dbg_file -Unable to peruse .DBG file oleaut32.dbg ("H:\\.wine-clean\\win\\dotnet.inst")
err:dbghelp:pe_load_dbg_file -Unable to peruse .DBG file rpcrt4.dbg ("H:\\.wine-clean\\win\\dotnet.inst")
err:dbghelp_msc:codeview_process_info Unknown CODEVIEW signature 53445352 in module msvcr80
fixme:dbghelp:symt_get_info Unsupported sym-tag SymTagPublicSymbol for get-type
Many symbols with name 'MessageBoxA', choose the one you want (<cr> to abort):
[1]: 0x408db030 MessageBoxA in user32
[2]: 0x40ad7760 MessageBoxA in shell32
[3]: 0x40107b00 __libc_read in libc.so.6
=> 1
Breakpoint 1 at 0x408db030 MessageBoxA in user32
Wine-dbg>c

First chance exception: page fault on read access to 0x00000040 in 32-bit code (0x4281009e).
Register dump:
 CS:0023 SS:002b DS:002b ES:002b FS:11af GS:0000
 EIP:4281009e ESP:423be038 EBP:423be0a4 EFLAGS:00010246(   - 00      -RIZP1)
 EAX:00000000 EBX:00000000 ECX:77710800 EDX:00000000
 ESI:00000000 EDI:000000a0
Stack dump:
0x423be038:  79655066 796fc52b 00000000 000000a0
0x423be048:  00000000 00000000 40340000 00000002
0x423be058:  00000034 404bec3f 00000007 423be084
0x423be068:  70a948ad 00000409 00000001 403b62f8
0x423be078:  ffffffff 79670df4 ffffffff 423be0b8
0x423be088:  70a95755 00000001 354ae8a4 423be044
0235: sel=11af base=40306000 limit=00001fff 32-bit rw-
Backtrace:
=>1 0x4281009e (0x423be0a4)
  2 0x796fc558 (0x423be0dc)
  3 0x796fc705 (0x423be12c)
  4 0x796fd494 (0x423be1d0)
  5 0x00750073 (0x00690056)
  6 0x00000000 (0x00000000)
0x4281009e: movl        0x40(%eax),%eax
Wine-dbg>c
First chance exception: page fault on read access to 0x00000040 in 32-bit code (0x4281009e).
...
etc.

When not setting the breakpoint:

chipzz at Vector:~/.wine-clean/win/dotnet.inst$ winedbg
fixme:console:SetConsoleCtrlHandler (0x4059e880,1) - no error checking or testing yet
Wine-dbg>attach 8
fixme:dbghelp:addr_to_linear Failed to linearize address 8000:00000000 (mode 0)
In 32 bit mode.
Wine-dbg>c

Also, ctrl-c doesn't work to stop the program being debugged.
Wien version is wine CVS Aug 23.

Any help is appreciated!

kr,

Chipzz AKA
Jan Van Buggenhout

PS: Please cc me as I'm not on the list.
-- 

------------------------------------------------------------------------
                 UNIX isn't dead - It just smells funny
                           Chipzz at ULYSSIS.Org
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"Baldric, you wouldn't recognize a subtle plan if it painted itself pur-
 ple and danced naked on a harpsicord singing 'subtle plans are here a-
 gain'."