http://bugs.winehq.org/show_bug.cgi?id=25310
Summary: Bugs in RtlUnwindEx Product: Wine Version: unspecified Platform: x86-64 OS/Version: Linux Status: UNCONFIRMED Severity: normal Priority: P2 Component: ntdll AssignedTo: wine-bugs@winehq.org ReportedBy: mkoegler@auto.tuwien.ac.at
MSDN (http://msdn.microsoft.com/en-us/library/ms680615(VS.85).aspx) describes the passed context as scratch-space, not something that the application has to initialize. The wine implemetation expect a valid context.
Looking at the debug output, it is also clearly visible, that the wine implementation unwinds the stack pointer one stack frame to far.
The attached patch fixes these problems: * RtlUnwindEx is called via DEFINE_REGS_ENTRYPOINT and the new context is used as starting point. * Stay at the same context, if the target stack frame has been reached.
There have been more infomation about the internal of RtlUnwindEx published: http://www.nynaeve.net/?p=113
The patch make RtlUnwindEx more compilant with this description - it is still incomplete.
http://bugs.winehq.org/show_bug.cgi?id=25310
--- Comment #1 from mkoegler@auto.tuwien.ac.at 2010-11-26 15:51:38 CST --- Created an attachment (id=32148) --> (http://bugs.winehq.org/attachment.cgi?id=32148) Patch for RtlUnwindEx
http://bugs.winehq.org/show_bug.cgi?id=25310
Austin English austinenglish@gmail.com changed:
What |Removed |Added ---------------------------------------------------------------------------- Keywords| |patch
--- Comment #2 from Austin English austinenglish@gmail.com 2010-11-26 20:19:50 CST --- Patches should be sent to wine-patches@winehq.org.
http://bugs.winehq.org/show_bug.cgi?id=25310
--- Comment #3 from Dmitry Timoshkov dmitry@codeweavers.com 2010-11-27 07:15:26 CST --- Wine version? Is that a pure theoretical problem or you have an application and a test case showing the bug?
http://bugs.winehq.org/show_bug.cgi?id=25310
--- Comment #4 from mkoegler@auto.tuwien.ac.at 2010-11-27 10:04:44 CST --- The patch is for a GIT snapshot - somewhere between 1.3.7 and 1.3.8.
Its enough to allow one program at my site to run without segfaulting under Linux too.
http://bugs.winehq.org/show_bug.cgi?id=25310
Dmitry Timoshkov dmitry@codeweavers.com changed:
What |Removed |Added ---------------------------------------------------------------------------- Version|unspecified |1.3.7
--- Comment #5 from Dmitry Timoshkov dmitry@codeweavers.com 2010-11-29 02:14:16 CST --- (In reply to comment #4)
The patch is for a GIT snapshot - somewhere between 1.3.7 and 1.3.8.
Its enough to allow one program at my site to run without segfaulting under Linux too.
Please provide a test case to prove that the patch is correct.
Patches are not picked up from bugzilla, they should be sent to wine-patches, or if you need a review to wine-devel.
http://bugs.winehq.org/show_bug.cgi?id=25310
--- Comment #6 from butraxz@gmail.com 2013-06-21 15:10:15 CDT --- This ticket has not been updated for over 900 days.
Is this still an issue in wine version 1.6-rc3 or higher or is this to be closed as abandoned ?
https://bugs.winehq.org/show_bug.cgi?id=25310
Sebastian Lackner sebastian@fds-team.de changed:
What |Removed |Added ---------------------------------------------------------------------------- CC| |sebastian@fds-team.de
--- Comment #7 from Sebastian Lackner sebastian@fds-team.de --- (In reply to mkoegler from comment #0)
Looking at the debug output, it is also clearly visible, that the wine implementation unwinds the stack pointer one stack frame to far.
It is impossible to solve this bug without further information (test application, more detailed description why specific changes are necessary, ...), but based on the description it could be similar to or a duplicate of https://bugs.winehq.org/show_bug.cgi?id=34254 . This bug is also related to Wine unwinding the stack too far.
https://bugs.winehq.org/show_bug.cgi?id=25310
Sebastian Lackner sebastian@fds-team.de changed:
What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Resolution|--- |ABANDONED
--- Comment #8 from Sebastian Lackner sebastian@fds-team.de --- The problem with unwinding one frame too far was resolved in 33c3990e4d5f637807eee55367b9f49f761571ef (see bug 34254). Nevertheless, since its impossible to test without any further response I will close as abandoned.
https://bugs.winehq.org/show_bug.cgi?id=25310
Béla Gyebrószki gyebro69@gmail.com changed:
What |Removed |Added ---------------------------------------------------------------------------- Status|RESOLVED |CLOSED
--- Comment #9 from Béla Gyebrószki gyebro69@gmail.com --- Closing abandoned bugs.
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