disable thread dispatch problem

[Ashi]

2012/7/6 Sebastian Huber <sebastian.huber at embedded-brains.de>

> On 07/06/2012 11:49 AM, Ashi wrote:
>
>> I've a problem of _Thread_Disable_dispatch() function in below code. It's
>> my
>> implementation of _POSIX_Keys_Run_destructors() function. I come across
>> the
>> problem when I run the psxkey03 test:if _Thread_Disable_dispatch() was
>> commented out, psxkey03 can run without problem. when
>> _Thread_Disable_dispatch() added at line 1(as below), psxkey03 will fail.
>> I
>> debug it in sparc-rtems4.11-gdb, and find psxkey03 runs into
>> _Internal_error_Occurred() function then stop. I know
>> _POSIX_Keys_Get()(at line
>> 12) will also disable thread dispatch--does this lead to the problem?
>> However,
>> can't figure out where exactly the problem exists, could anyone explain
>> it? Thanks!
>>
>
> The _Thread_Disable_dispatch() can nest.  I suppose you want to acquire a
> resource in the destructor which is not free.  The path to
> _Internal_error_Occurred() should show the problem.
>
> Sebastian, I follow the calls in gdb, and find the error is:
 Program received signal SIGINT, Interrupt.
0x020168b8 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
58      _CPU_Fatal_halt( the_error );

-- 
> Sebastian Huber, embedded brains GmbH
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-- 
Best wishes!
Zhongwei Yao
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