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why does my program runs in conflicting mode?

 
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Old 07-17-2006
why does my program runs in conflicting mode?
my pragram runs with 3 threads, 2 work threads, one main thread. the 2 work threads run with the same mode and the same code. but now, one of the work thread can't work, and it uses the cpu more than 80%, sometimes uses 100% cpu resource. the another work thread work well.

when I viewed the HP perf agent log, it displays that my program's InterestReason is C, the StopReason is SLEEP or SYSTM, the CPU % is 100.53, the RealTm CPU % is 100.04 ,the other CPU % is nearly 0

RealTm CPU % is 100.04 , that's say, my program use the CPU crueltly, but the the StopReason is SLEEP or SYSTM, it seemed that my program is calling sleep or locked by the mutex, I was puzzled with the conflicting information, can you help me?
 
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LEARN ABOUT OSF1

thread_halt_self

thread_halt_self(9r)													      thread_halt_self(9r)

NAME

       thread_halt_self - General: Handles asynchronous traps for self-terminating kernel threads

SYNOPSIS

       void thread_halt_self(
	       void );

ARGUMENTS

       None

DESCRIPTION

       The  thread_halt_self  routine performs the work associated with a variety of asynchronous traps (ASTs) for a kernel thread that terminates
       itself. A kernel thread terminates itself (or one kernel thread terminates another kernel thread) by calling the thread_terminate routine.

       The thread_halt_self routine examines the AST-related member of the thread structure pointer associated with the kernel thread  that  wants
       to terminate itself. This thread structure pointer was returned in a previous call to kernel_isrthread or kernel_thread_w_arg and passed by
       you to the thread_terminate routine. This AST-related member is set to a bit that identifies the specific AST  trap  associated	with  this
       kernel  thread.	Based on the AST bit set in this member, thread_halt_self does the appropriate cleanup work before the kernel thread exits
       from the kernel.

NOTES

       A kernel thread that terminates itself must call thread_halt_self immediately after the call to thread_terminate.  The reason for  this	is
       that  thread_terminate  only prepares the self-terminating kernel thread to stop execution. The thread_halt_self routine completes the work
       needed to stop execution of the self-terminating kernel thread by performing the appropriate cleanup work.

RETURN VALUES

       None

SEE ALSO

       Routines: thread_terminate(9r)

															      thread_halt_self(9r)