Anders Karlsson wrote:
> Hi,
>
> randomly we get lockups during termination of DirectFB version 1.2.3. We did
> not see this in earlier versions of the same code. As far as we know we have
> the expected exit handling and it worked fine, without complaints, before.
>
> When I connect a gdb against the locked process I get the following backtrace:
>
> ---------------------------------------------------------------------------------
> (gdb) bt
> #0 0xb7f97424 in __kernel_vsyscall ()
> #1 0xb7c5aca9 in __lll_lock_wait () from /lib/i686/cmov/libpthread.so.0
> #2 0xb7c560d3 in _L_lock_291 () from /lib/i686/cmov/libpthread.so.0
> #3 0xb7c55b36 in pthread_mutex_lock () from /lib/i686/cmov/libpthread.so.0
> #4 0xb7d63866 in pthread_mutex_lock () from /lib/i686/cmov/libc.so.6
> #5 0xb7c7131e in fusion_reactor_detach_global ()
>
> from
> /usr/local/sdk/directfb/custom/local/directfb-1.2.3/lib/libfusion-1.2.so.0
> #6 0xb7f728dd in dfb_input_detach_global ()
>
> from
> /usr/local/sdk/directfb/custom/local/directfb-1.2.3/lib/libdirectfb-1.2.so.0
> #7 0xb7f87fd0 in dfb_windowstack_destroy ()
>
> from
> /usr/local/sdk/directfb/custom/local/directfb-1.2.3/lib/libdirectfb-1.2.so.0
> #8 0xb7f7700a in context_destructor ()
>
> from
> /usr/local/sdk/directfb/custom/local/directfb-1.2.3/lib/libdirectfb-1.2.so.0
> #9 0xb7c70ea6 in object_reference_watcher ()
>
> from
> /usr/local/sdk/directfb/custom/local/directfb-1.2.3/lib/libfusion-1.2.so.0
> #10 0xb7c71de0 in fusion_ref_down ()
> from
> /usr/local/sdk/directfb/custom/local/directfb-1.2.3/lib/libfusion-1.2.so.0
> #11 0xb7f2effa in IDirectFB_Destruct ()
>
> from
> /usr/local/sdk/directfb/custom/local/directfb-1.2.3/lib/libdirectfb-1.2.so.0
> #12 0xb7f2f12c in IDirectFB_Release ()
>
> from
> /usr/local/sdk/directfb/custom/local/directfb-1.2.3/lib/libdirectfb-1.2.so.0
> #13 0x08048f21 in main (argc=Cannot access memory at address 0x80
> ) at blit.c:92
> ---------------------------------------------------------------------------------
>
> The line at row 92 is my DirectFB release:
> 92 dfb->Release( dfb );
>
>
> Has anything changed in this area?
Yes, please look at the 1.2.2 changes
http://www.directfb.org/index.php?path=Main%2FNews&entry=2008-08-15-0.dok
I can't find the error with the stack trace. Please provide a trace of all
threads
or turn on DirectFB debugging messages, preferably with trace support for nice
indent
using "--enable-debug --enable-trace" and option "debug" at runtime.
--
Best regards,
Denis Oliver Kropp
.------------------------------------------.
| DirectFB - Hardware accelerated graphics |
| http://www.directfb.org/ |
"------------------------------------------"
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