I start XWin.exe via a shortcut when logging into Windows 7 (64-bit).
Recently, I replaced my Cygwin installation with the 64-bit version.
Now, XWin.exe crashes (SIGSEGV) every time I restart or shutdown
Windows.
I produced a gdb backtrace by cancelling the restart quickly after the
problem occurred. Additional files are attached.
(gdb) bt full
#0 0x0001004071ea in winMsgWindowProc (hwnd=optimized out,
message=optimized out,
wParam=optimized out, lParam=optimized out)
at /usr/src/debug/xorg-server-1.14.2-2/hw/xwin/winmsgwindow.c:58
pScreen = optimized out
hwnd = optimized out
message = 22
wParam = optimized out
lParam = optimized out
#1 0x77139bd1 in USER32!TranslateMessageEx ()
from /cygdrive/c/Windows/system32/USER32.dll
No symbol table info available.
#2 0x050c in ?? ()
No symbol table info available.
#3 0x0001 in ?? ()
No symbol table info available.
#4 0x in ?? ()
No symbol table info available.
On a different note, when running gdb, I noticed that XWin.exe twice
receives a SIGSYS when starting. That does not affect normal
operations.
Please let me know if you need additional information.
Andreas Girgensohn
C:\Users\andreasgtcsh
[andreasg@panoramix ...Users/andreasg]$ gdb --args /usr/bin/XWin -multiwindow
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..
Reading symbols from /usr/bin/XWin...Reading symbols from
/usr/lib/debug/usr/bin/XWin.exe.dbg...done
.
done.
(gdb) r
Starting program: /usr/bin/XWin -multiwindow
[New Thread 3312.0xcf4]
[New Thread 3312.0xce8]
[New Thread 3312.0x10b0]
[New Thread 3312.0x10ac]
[New Thread 3312.0x10e0]
[New Thread 3312.0x128c]
[New Thread 3312.0x1288]
[New Thread 3312.0xe60]
[New Thread 3312.0xe5c]
[Thread 3312.0x10ac exited with code 0]
[Thread 3312.0x10e0 exited with code 0]
[Thread 3312.0x128c exited with code 0]
[Thread 3312.0x1288 exited with code 0]
[Thread 3312.0xe60 exited with code 0]
[New Thread 3312.0xe4c]
[New Thread 3312.0xe58]
[New Thread 3312.0xe50]
Program received signal SIGSYS, Bad system call.
CheckForShmSyscall () at /usr/src/debug/xorg-server-1.14.2-2/Xext/shm.c:188
188 if (shmid != -1) {
(gdb) where
#0 CheckForShmSyscall () at /usr/src/debug/xorg-server-1.14.2-2/Xext/shm.c:188
#1 ShmExtensionInit () at /usr/src/debug/xorg-server-1.14.2-2/Xext/shm.c:1257
#2 0x in ?? ()
(gdb)
Program received signal SIGSYS, Bad system call.
CheckForShmSyscall () at
/usr/src/debug/xorg-server-1.14.2-2/Xext/xf86bigfont.c:118
118 if (shmid != -1) {
(gdb) where
#0 CheckForShmSyscall () at
/usr/src/debug/xorg-server-1.14.2-2/Xext/xf86bigfont.c:118
#1 XFree86BigfontExtensionInit () at
/usr/src/debug/xorg-server-1.14.2-2/Xext/xf86bigfont.c:714
#2 0x in ?? ()
(gdb) handle SIGSYS nostop
SignalStop Print Pass to program Description
SIGSYSNoYes Yes Bad system call
(gdb) r
Starting program: /usr/bin/XWin -multiwindow
[New Thread 6080.0x17c8]
[New Thread 6080.0x13e4]
[New Thread 6080.0x17dc]
[New Thread 6080.0x14f8]
[New Thread 6080.0x1584]
[New Thread 6080.0x17e8]
[New Thread 6080.0x17ec]
[New Thread 6080.0x1280]
[New Thread 6080.0x1198]
[Thread 6080.0x14f8 exited with code 0]
[Thread 6080.0x1584 exited with code 0]
[Thread 6080.0x17e8 exited with code 0]
[Thread 6080.0x17ec exited with code 0]
[Thread 6080.0x1280 exited with code 0]
[New Thread 6080.0x17a4]
[New Thread 6080.0xe70]
[New Thread 6080.0x143c]
Program received signal SIGSYS, Bad system call.
Program received signal SIGSYS, Bad system call.
[New Thread 6080.0x93c]
[New Thread 6080.0x7f8]
[New Thread 6080.0x177c]
[New Thread 6080.0x1fc]
[New Thread 6080.0x494]
[New Thread 6080.0x754]
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 6080.0x17a4]
0x0001004071ea in winMsgWindowProc (hwnd=optimized out,
message=optimized out,
wParam=optimized out, lParam=optimized out)
at /usr/src/debug/xorg-server-1.14.2-2/hw/xwin/winmsgwindow.c:58
58 PostMessage(pScreenPriv-hwndScreen, WM_GIVEUP, 0, 0);
(gdb) where
#0 0x0001004071ea in winMsgWindowProc (hwnd=optimized out,
message=optimized out,
wParam=optimized
