[Xcb] [Socket handoff] Waiting forever...

[Christoph Pfister]

2009/1/2 Clemens Eisserer <linuxhippy at gmail.com>:
> Hi,
>
> I am using the new socket-handoff functionality to mix protocoll
> generated by XLib and some self-written protocol.
> I am experiencing strange problems, where XCB seems to wait forever on
> the server - like the stack-traces illustrate at the end of the email.
<snip>

It looks like there are two different threads accessing Xlib (!)
functions which isn't allowed without a proper setup (and I guess it's
nearly impossible to do this using standard java functions).

Christoph


> Thank you in advance and a happy new year, Clemens
>
> #0  0xb7f9d416 in __kernel_vsyscall ()
> #1  0x009885f1 in select () from /lib/libc.so.6
> #2  0x7fe29035 in _xcb_conn_wait () from /opt/xorg/lib/libxcb.so.1
> #3  0x7fe2b33a in xcb_wait_for_reply () from /opt/xorg/lib/libxcb.so.1
> #4  0x7fe93078 in _XReply () from /opt/xorg/lib/libX11.so.6
> #5  0x7fe877ea in XSync () from /opt/xorg/lib/libX11.so.6
> #6  0x7ff8ac18 in X11SD_GetSharedImage ()
> #7  0x7ff8c57c in X11SD_GetRasInfo ()
> #8  0x7ffda2ac in Java_sun_java2d_loops_Blit_Blit ()
>
>
> #0  0xb7f24416 in __kernel_vsyscall ()
> #1  0x009885f1 in select () from /lib/libc.so.6
> #2  0xacc5a035 in _xcb_conn_wait () from /opt/xorg/lib/libxcb.so.1
> #3  0xacc5c33a in xcb_wait_for_reply () from /opt/xorg/lib/libxcb.so.1
> #4  0xaccc4078 in _XReply () from /opt/xorg/lib/libX11.so.6
> #5  0xaccbd7fb in _XPrivSyncFunction () from /opt/xorg/lib/libX11.so.6
> #6  0xacc992cc in XChangeProperty () from /opt/xorg/lib/libX11.so.6
> #7  0xacdb5ede in Java_sun_awt_X11_XlibWrapper_XChangePropertyImpl ()