[Bug 9625] New: Winedbg unable to read minidump, "Unknown mode ffffffff"

http://bugs.winehq.org/show_bug.cgi?id=9625

Summary: Winedbg unable to read minidump, "Unknown mode ffffffff"
           Product: Wine
           Version: 0.9.44.
          Platform: PC-x86-64
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: wine-debug
        AssignedTo: [e-mail]
        ReportedBy: [e-mail]

Created an attachment (id=8015)
 --> (http://bugs.winehq.org/attachment.cgi?id=8015)
Minidump causing the problem

When I try to read the attached Minidump, winedbg gives a lot of fixmes and
then spits out a probably wrong backtrace sprinkled with "Unknown mode
ffffffff".

[Bug 9625] Winedbg unable to read minidump, "Unknown mode ffffffff"

http://bugs.winehq.org/show_bug.cgi?id=9625

--- Comment #1 from Dennis Schridde   2007-09-10 08:34:40 ---
Created an attachment (id=8016)
 --> (http://bugs.winehq.org/attachment.cgi?id=8016)
winedbg messages

[Bug 9625] Winedbg unable to read minidump, "Unknown mode ffffffff"

http://bugs.winehq.org/show_bug.cgi?id=9625

--- Comment #2 from Vitaliy Margolen   2007-09-10 12:14:23 ---
What was used to produce this minidump?

[Bug 9625] Winedbg unable to read minidump, "Unknown mode ffffffff"

http://bugs.winehq.org/show_bug.cgi?id=9625

Vitaliy Margolen  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
   Attachment #8016|text/x-log                  |text/plain
          mime type|                            |

[Bug 9625] Winedbg unable to read minidump, "Unknown mode ffffffff"

http://bugs.winehq.org/show_bug.cgi?id=9625

--- Comment #3 from Dennis Schridde   2007-09-10 13:38:28 ---
This exe created the attached MiniDump:
http://files.wz2100.net/development/warzone2100.exe
The following code is responsible for it:
http://svn.gna.org/viewcvs/*checkout*/warzone/branches/2.0/lib/framework/exc...

[Bug 9625] Winedbg unable to read minidump, "Unknown mode ffffffff"

http://bugs.winehq.org/show_bug.cgi?id=9625

Eric Pouech  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |[e-mail]
             Status|UNCONFIRMED                 |ASSIGNED
     Ever Confirmed|0                           |1

--- Comment #4 from Eric Pouech   2008-01-13 10:08:25 ---
the minidump is broken (this program wrongly converts 32 bit unsigned integers
to 64 bit unsigned integers)
A proposed fixed has been sent to wine-patches and let the minidump be readable

[Bug 9625] Winedbg unable to read minidump, "Unknown mode ffffffff"

http://bugs.winehq.org/show_bug.cgi?id=9625

Eric Pouech  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|                            |FIXED

--- Comment #5 from Eric Pouech   2008-01-19 03:29:10 ---
this minidump is now loadable on winedbg in current git
closing the bug

[Bug 9625] Winedbg unable to read minidump, "Unknown mode ffffffff"

http://bugs.winehq.org/show_bug.cgi?id=9625

--- Comment #6 from Dennis Schridde   2008-01-19 05:04:42 ---
(In reply to comment #4)
> the minidump is broken (this program wrongly converts 32 bit unsigned integers
> to 64 bit unsigned integers)
> A proposed fixed has been sent to wine-patches and let the minidump be readable

Which program is "this program"? Warzone 2100 or winedbg?
In the first case I'd be eager to fix it, if you could tell me where that wrong
conversion happens.

[Bug 9625] Winedbg unable to read minidump, "Unknown mode ffffffff"

http://bugs.winehq.org/show_bug.cgi?id=9625

--- Comment #7 from Eric Pouech   2008-01-19 05:37:01 ---
warzone is to blame

[Bug 9625] Winedbg unable to read minidump, "Unknown mode ffffffff"

http://bugs.winehq.org/show_bug.cgi?id=9625

--- Comment #8 from Dennis Schridde   2008-01-19 06:03:03 ---
(In reply to comment #7)
> warzone is to blame

So we have a bug in the preparation for the minidump creation? Can you please
point me to the specific variables that are treated wrongly?
Code is still at
http://svn.gna.org/viewcvs/*checkout*/warzone/branches/2.0/lib/framework/exc...

[Bug 9625] Winedbg unable to read minidump, "Unknown mode ffffffff"

http://bugs.winehq.org/show_bug.cgi?id=9625

--- Comment #9 from Eric Pouech   2008-01-19 07:25:30 ---
looking again at the code, I rather puzzled by the outcome
the exception code looks fine (anyway some bad conversions seem to rather
happen in native dbghelp)
are you running on a 32bit or 64 bit platform ?

[Bug 9625] Winedbg unable to read minidump, "Unknown mode ffffffff"

http://bugs.winehq.org/show_bug.cgi?id=9625

--- Comment #10 from Dennis Schridde   2008-01-19 08:37:44 ---
That minidump was afaik created by a real 32bit Win98.
I was probably running a 64bit Linux already at that time...

[Bug 9625] Winedbg unable to read minidump, "Unknown mode ffffffff"

http://bugs.winehq.org/show_bug.cgi?id=9625

Eric Pouech  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |CLOSED

--- Comment #11 from Eric Pouech   2008-01-19 10:47:25 ---
well, looking *AGAIN* at the minidump, it turns out it hasn't been written by
the wine native dbghelp (it doesn't include version reference for modules, and
your file have them)
so unless you've patched dbghelp, microsoft is to blame here for the bug

[Bug 9625] Winedbg unable to read minidump, "Unknown mode ffffffff"

http://bugs.winehq.org/show_bug.cgi?id=9625

--- Comment #12 from Dennis Schridde   2008-01-19 11:28:14 ---
Ok, as long as I am not the wrong one. ;)