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gdb/2389: gdb-6.7.50.20071219 causes SIGSEGV inside debugged application

>Number:         2389
>Category:       gdb
>Synopsis:       gdb-6.7.50.20071219 causes SIGSEGV inside debugged application
>Confidential:   no
>Severity:       critical
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Fri Dec 21 10:08:01 UTC 2007
>Closed-Date:
>Last-Modified:
>Originator:     Bogdan Slusarczyk
>Release:        6.7.50.20071219
>Organization:
>Environment:
windowsXP, sample executable built using Dev-cpp (mingw + gcc3.4.5), gdb built with cygwin + gcc3.4.4
>Description:
It seems that gdb causes SIGSEGV inside debugged executable. Gdb6.7.1 doesn't cause such problem.
Attached zip has: full gdb output (log.txt), executable source (test.cpp), dll source (dll.h, dllmain.cpp).
>How-To-Repeat:
1) run executable and gdb using 'gdb -q -nw -i mi' (gdb -i mi works too)
2) attach to process by pid, load symbols for executable (-file-exec-and-symbols) and for dll (-file-symbol-file)
3) don't set breakpoint, just let process exit normally (-exec-continue)
4) don't close gdb, run executable again and attach again
5) set breakpoint (-break-insert) and let process hit this breakpoint (-exec-continue)
6) call -exec-continue: you should get SIGTRAP, call -exec-continue again: you should get SIGSEGV (from debugged process)
>Fix:

>Release-Note:
>Audit-Trail:
>Unformatted:
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