[Bug 42653] New: Wine x64 have wrong DRX registers usage.

https://bugs.winehq.org/show_bug.cgi?id=42653

Bug ID: 42653
           Summary: Wine x64 have wrong DRX registers usage.
           Product: Wine
           Version: 2.3
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: -unknown
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

Created attachment 57589
  --> https://bugs.winehq.org/attachment.cgi?id=57589
Source file to reproduce fatal error

I attached source file to reproduce the problem. I run compiled executable on
Ubuntu 16.10 with Wine 2.3 Staging and get following output:
DR0 - 0 ; DR1 - 2 ; DR2 - 4e8e0; DR3 - 23f680 ; DR6 - 2 ; DR7 - 90

Why Wine x64 using DRX registers?

This behavior can cause many fatal errors in programs and must be fixed!
I will provide any additional info if needed.

[Bug 42653] Wine x64 have wrong DRX registers usage.

https://bugs.winehq.org/show_bug.cgi?id=42653

--- Comment #1 from Denis  ---
Wine x86 2.3 does not have such a problem.

[Bug 42653] Wine x64 does not set debug registers in exception record

https://bugs.winehq.org/show_bug.cgi?id=42653

Michael Müller  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |[e-mail]
            Summary|Wine x64 have wrong DRX     |Wine x64 does not set debug
                   |registers usage.            |registers in exception
                   |                            |record

--- Comment #2 from Michael Müller  ---
The problem is not that Wine is using the debug registers on x64 for its own
purposes, but that the debug registers are not set in the exception record.
Your test application basically reads uninitialized memory.

Andrew Wesie sent a patch a month ago to fix the issue, but it was not merged:
https://www.winehq.org/pipermail/wine-patches/2017-February/158003.html

[Bug 42653] Wine x64 does not set debug registers in exception record

https://bugs.winehq.org/show_bug.cgi?id=42653

--- Comment #3 from Denis  ---
Hello!
Any good news?
This generic bug must be fixed.

[Bug 42653] Wine x64 does not set debug registers in exception record

https://bugs.winehq.org/show_bug.cgi?id=42653

Alexandre Julliard  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |FIXED
      Fixed by SHA1|                            |a1b563f41c2246f94467b17d67a
                   |                            |369cfbe144a2d
             Status|UNCONFIRMED                 |RESOLVED

--- Comment #4 from Alexandre Julliard  ---
Hopefully fixed by a1b563f41c2246f94467b17d67a369cfbe144a2d, please retest.

[Bug 42653] Wine x64 does not set debug registers in exception record

https://bugs.winehq.org/show_bug.cgi?id=42653

Alexandre Julliard  changed:

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

--- Comment #5 from Alexandre Julliard  ---
Closing bugs fixed in 2.13.