<br><br><div class="gmail_quote">2012/7/9 Sebastian Huber <span dir="ltr"><<a href="mailto:sebastian.huber@embedded-brains.de" target="_blank">sebastian.huber@embedded-brains.de</a>></span><br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
On 07/09/2012 08:28 AM, Ashi wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<br>
2012/7/6 Sebastian Huber <<a href="mailto:sebastian.huber@embedded-brains.de" target="_blank">sebastian.huber@embedded-<u></u>brains.de</a><br>
<mailto:<a href="mailto:sebastian.huber@embedded-brains.de" target="_blank">sebastian.huber@<u></u>embedded-brains.de</a>>><div class="im"><br>
<br>
On 07/06/2012 11:49 AM, Ashi wrote:<br>
<br>
I've a problem of _Thread_Disable_dispatch() function in below code.<br>
It's my<br>
implementation of _POSIX_Keys_Run_destructors() function. I come across the<br>
problem when I run the psxkey03 test:if _Thread_Disable_dispatch() was<br>
commented out, psxkey03 can run without problem. when<br>
_Thread_Disable_dispatch() added at line 1(as below), psxkey03 will fail. I<br>
debug it in sparc-rtems4.11-gdb, and find psxkey03 runs into<br>
_Internal_error_Occurred() function then stop. I know<br>
_POSIX_Keys_Get()(at line<br>
12) will also disable thread dispatch--does this lead to the problem?<br>
However,<br>
can't figure out where exactly the problem exists, could anyone explain<br>
it? Thanks!<br>
<br>
<br>
The _Thread_Disable_dispatch() can nest. I suppose you want to acquire a<br>
resource in the destructor which is not free. The path to<br>
_Internal_error_Occurred() should show the problem.<br>
<br>
Sebastian, I follow the calls in gdb, and find the error is:<br>
Program received signal SIGINT, Interrupt.<br>
0x020168b8 in _Internal_error_Occurred (the_source=INTERNAL_ERROR_<u></u>CORE,<br>
is_internal=true, the_error=5)<br>
at ../../../../../../rtems/c/src/<u></u>../../cpukit/score/src/interr.<u></u>c:58<br>
58 _CPU_Fatal_halt( the_error );<br>
</div></blockquote>
<br>
What is the call stack here?<br>
<br></blockquote><div>Hi, Sebastian, the call stack is:<br><br><span class="st"> <em></em></span> #0 0x020168bc in _Internal_error_Occurred (the_source=INTERNAL_ERROR_CORE, is_internal=true, the_error=5) at ../../../../../../rtems/c/src/../../cpukit/score/src/interr.c:58<br>
#1 0x0202ae58 in _Thread_Handler () at ../../../../../../rtems/c/src/../../cpukit/score/src/threadhandler.c:197<br>#2 0x0202acb0 in _Thread_Handler () at ../../../../../../rtems/c/src/../../cpukit/score/src/threadhandler.c:89<br>
<br>and the info local shows:<br>level = 4198629<br><br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
The error=5 is probably INTERNAL_ERROR_THREAD_EXITTED (see also Internal_errors_Core_list). How did you terminate the task?<div class="HOEnZb"><div class="h5"><br></div></div></blockquote><div>the task is terminated by Ctrl+C in sparc-rtems-gdb. <br>
However, as I said in my last post, the problem is gone when I add _Thread_Enable_dispatch() at the end of each while iteration...is it proper?<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div class="HOEnZb"><div class="h5">
<br>
-- <br>
Sebastian Huber, embedded brains GmbH<br>
<br>
Address : Obere Lagerstr. 30, D-82178 Puchheim, Germany<br>
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<br>
<br>
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</div></div></blockquote></div><br><br clear="all"><br>-- <br>Best wishes!<br>Zhongwei Yao<br><br>