[Bug 49011] New: Royal Quest crashes wineserver

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=49011

Bug ID: 49011
           Summary: Royal Quest crashes wineserver
           Product: Wine
           Version: 5.7
          Hardware: x86
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: wineserver
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

Click "PLAY" in the launcher, click "Log In" -> boom. (Usually anyway, I think
a couple times I was able to pick a character then got the crash after clicking
"Enter".)

Requested run of gdb gave this:

Reading symbols from /opt/wine-devel/bin/wineserver...Reading symbols from
/usr/lib/debug/.build-id/95/97696b2e8b609fa120eaaaf5340792be83679b.debug...done.
done.
[New LWP 15901]
Core was generated by `/opt/wine-devel/bin/wineserver'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  req_get_thread_context (req=0x5618cb954488, reply=0x7ffc8c5c7b20)
    at thread.c:1851
1851    thread.c: No such file or directory.
(gdb) backtrace
#0  req_get_thread_context (req=0x5618cb954488, reply=0x7ffc8c5c7b20)
    at thread.c:1851
#1  0x00005618c9521ec3 in call_req_handler (thread=<optimized out>)
    at request.c:310
#2  0x00005618c9528630 in thread_poll_event (fd=<optimized out>, event=1)
    at thread.c:368
#3  0x00005618c9502ef6 in main_loop_epoll () at fd.c:476
#4  0x00005618c950316e in main_loop () at fd.c:937
#5  0x00005618c94f39e6 in main ()

And regression test yielded this:

c4dab9b76eb7397f6e5325ff4bdf792cf500e571 is the first bad commit
commit c4dab9b76eb7397f6e5325ff4bdf792cf500e571
Author: Jacek Caban 
Date:   Wed Apr 22 14:33:23 2020 +0200

server: Block by waiting on context handle in get_thread_context.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=48052
    Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=45546
    Signed-off-by: Jacek Caban 
    Signed-off-by: Alexandre Julliard

:040000 040000 23489508911b463430ec94f084243ab7b6b47a49
376d2675fd4f00819efed8efdbc00d0c80580eb9 M    dlls
:040000 040000 0fe4c763311f30a02a6341d5e9ec9529d5efa701
35da9ef4fc5f1a4c732d0f1b748387e938787293 M    include
:040000 040000 40c59f9f5407f93d2223a2d546a47bd6864f2ae2
8c7414aad06eeeee9148960c93dcad26cc7cc00f M    server