[Bug 50842] The 64-bit msado15:msado15 test crashes

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=50842

Bernhard Übelacker <bernhardu at mailbox.org> changed:

           What    |Removed                     |Added
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                 CC|                            |bernhardu at mailbox.org

--- Comment #1 from Bernhard Übelacker <bernhardu at mailbox.org> ---
Created attachment 71355
  --> https://bugs.winehq.org/attachment.cgi?id=71355
rr-debugging of testbot executable with wine

Hello François, I tried to reproduce this with an patch with just a few
extra traces, but that did not show the crash.
https://testbot.winehq.org/JobDetails.pl?Key=104228

So I downloaded the winetest64-latest.exe from the last batch test run,
extracted msado15_test.exe and with this the crash is reproducible on
testbot. Unfortunately those executables have the debug information stripped.

But still I wondered if the crashing address shown might be inside the
test executable image itself.
Therefore I tried to debug it inside wine setting the breakpoint to 0x408817
and it stopped:
=> 0x408817:    mov    (%rcx),%rax

And running backwards it seems this value in $rcx got created in wine by
CoCreateInstance at msado15.c:596 and is finally the value of the variable
recordset.

So one theory might be that the variable recordset gets overwritten later.

But is there a way to submit jobs to testbot, so they will run
through winetest64-latest.exe, like in the batch runs?

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