Re: [Xenomai-help] system freeze with 2.3.x latest svn

[Stephan Zimmermann <s.zimmermann@domain.hid>]

Philippe Gerum schrieb:
> On Wed, 2007-02-07 at 15:58 +0100, Stephan Zimmermann wrote:
>> Hello,
>> I get the following message and a completely frozen system when I run my
>> applications after upgrading to branches/v2.3.x  rev. 2137. (Everything 
>> worked fine on revision 2077)
>>
>> 'Xenomai: fatal: re-enqueuing a relaxed thread in the RPI queue'
>>
>> Maybe I did s.th. stupid again?
> 
> No, I did, by committing a half-baked patch attempting to fix a priority
> inversion seen with the pSOS emulator. Now really, really fixed by #2139
> in v2.3.x, and #2140 in trunk/. Hopefully.

Works. Thx.

> 
>> I did 'svn -r 2137 up' in the source directory and recompiled 
>> everything (kernel, xenomai, my application). It's a AMD-X2 with Kernel 
>> 2.6.17.14, running Debian Sarge. My colleague tells me he saw the same 
>> when experimenting with trunk.
>>
>> some additional infos:
>>
>> 'svn info' gives me:
>> ------------------------------------------------------------------
>> linux1:~/xenomai_svn_test/xenomai$ svn info
>> Pfad: .
>> URL: http://svn.gna.org/svn/xenomai/branches/v2.3.x
>> UUID des Projektarchivs: c6d672ea-8702-0410-b560-f74c916a59fe
>> Revision: 2137
>> Knotentyp: Verzeichnis
>> Plan: normal
>> Letzter Autor: rpm
>> Letzte geänderte Rev: 2137
>> Letztes Änderungsdatum: 2007-02-07 12:13:48 +0100 (Mi, 07 Feb 2007)
>> Eigenschaften zuletzt geändert: 2007-01-22 13:20:30 +0100 (Mo, 22 Jan 2007)
>>
>>
>> the following code leads to the crash, shortly after entering main():
>> --------------------------------------------------------------------
>> #include <iostream>
>> #include <sys/mman.h>
>> #include <assert.h>
>> #include "native/task.h"
>> #include "native/timer.h"
>> #include "native/queue.h"
>> #include "native/intr.h"
>>
>> #include <sys/io.h>
>>
>> RT_TASK maintask;
>> RT_TASK inttask;
>> RT_TASK intcreatortask;
>>
>> #define LPT_BASE	0x378
>> #define LPT_INT		7
>>
>> bool finish = false;
>>
>> void int_task(void* cookie){
>> 	int err = 0;
>> 	int counter = 0;
>> 	RT_INTR lptint;
>> 	
>> 	err = rt_intr_create(&lptint,"parp_int",7,0);
>> 	std::cout << "interrupt create:" << err << std::endl;
>> 	
>> 	err = rt_intr_enable(&lptint);
>> 	std::cout << "interrupt enable:" << err << std::endl;
>> 	
>> 	// switch int mode on
>> 	outb_p(0x10, LPT_BASE + 2);
>> 	
>> 	// all pins = 0
>> 	outb_p(0x00, LPT_BASE );
>> 	
>> 	while(!finish){
>> 		err = rt_intr_wait(&lptint, 100);
>> 		if(err >= 0 ){
>> 			counter++;
>> 			std::cout << "got " << err << " loop: " << counter << std::endl;
>> 		}
>> 	}
>> 	
>> 	err = rt_intr_disable(&lptint);
>> 	std::cout << "interrupt disable:" << err << std::endl;
>> 	
>> 	err = rt_intr_delete(&lptint);
>> 	std::cout << "interrupt delete:" << err << std::endl;
>> }
>>
>> void int_creator_task(void* cookie){
>> 	char ob = 0x00;
>> 	for(int i = 0; i < 1000; i++){	
>> 		rt_task_sleep(100);
>> 		outb_p(ob,LPT_BASE);
>> 		if(ob){
>> 			ob = 0x00;
>> 		}else{
>> 			ob = 0xFF;
>> 		}
>> 	}
>> 	finish = true;
>> }
>>
>> int main(void){
>> 	int err;
>> 	
>> 	std::cout << "xenomai interrupt test" << std::endl;
>> 	mlockall(MCL_CURRENT | MCL_FUTURE);
>> 	
>> 	if (iopl(3)) {
>> 		printf("iopl err\n");
>> 		exit(1);
>> 	}
>> 	
>> 	err = rt_task_shadow (&maintask,"maintask",10,0);
>> 	std::cout << "task shadow:" << err << std::endl;
>> 	
>> 	err = rt_timer_set_mode(1000000);
>> 	std::cout << "timer set mode:" << err << std::endl;
>> 	
>> 	rt_task_spawn(&inttask,"interrupt-task",1024,50,T_JOINABLE,int_task,NULL);
>> 	
>> 	rt_task_spawn(&intcreatortask,"interrupt-creator-task",1024,50,T_JOINABLE,int_creator_task,NULL);
>> 	
>> 	rt_task_join(&intcreatortask);
>> 	rt_task_join(&inttask);
>> 	
>> 	std::cout << "task's finished, exiting" << std::endl;
>> 	
>> 	return 0;
>> }
>>
>>
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