From: Ralf Baechle
Date: April 27 1999 12:38pm
Subject: Re: MySQL: 990422 15:57:50  Can't create interrupt-thread (error 11, errno: 0)
List-Archive: http://lists.mysql.com/mysql/2467
Message-Id: <19990427143806.A501@uni-koblenz.de>
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On Sun, Apr 25, 1999 at 03:58:02PM +0300, Michael Widenius wrote:

> Robert> I finally got MySQL working on the Cobalt RaQ Cube (w/ binutils, glibc,
> Robert> and egcs upgrades) but I can't get it to run, when I run
> Robert> mysql_install_db it dumps lots of error messages out and this is the one
> Robert> that keeps MySQL from running properly, what could be causing this?
> 
> Robert> 990422 15:57:50  Can't create interrupt-thread (error 11, errno: 0)

> Robert> glibc 2.0.7 (r20 RPM)

> This means that there is probably a bug in pthread_create() or in
> the signal handling in your libraries :(

The clone(2) wrapper in libc was buggy for a long time; people may want
to try this test program.  I don't know if Cobalt fixed it in their RPMs
or not.

  Ralf

#include <pthread.h>
#include <stdio.h>

void* new_thread(void* arg)
{
	int i;
	printf("Thread[%s] stack at %x\n",arg, &i);
	for (i = 0; i< 4; i++) {
	    printf("Thread[%s] %d\n", arg, i);
	    sched_yield();
	}
	return(NULL);
}

#define NUM_OF_THREAD 100
main(int argc, char **argv)

{
        int num = NUM_OF_THREAD;
	pthread_t thread[NUM_OF_THREAD];
	
	char *args[NUM_OF_THREAD];
	int i;
	int last;
	void *status;

	if (argc > 1)
	    num = atoi(argv[1]);
	if (num>NUM_OF_THREAD)
	    num = NUM_OF_THREAD;
	printf("Original thread stack at %x\n", &i);

	for (i = 0 ; i < num; i++) {
	    args[i] = (char *)malloc(80);
	    sprintf(args[i], "%04d", i);
	    if (pthread_create(&thread[i],
			       NULL,
			       new_thread, (void *)args[i])) {
		printf("Error: creating new thread[%d]\n", i);
		break;
	    }
	}

	last = i;

	for (i = 0 ; i < last; i++) {
	    pthread_join(thread[i], &status);
	    printf("thread[%d] return status' address %p\n",i, status);
	}
	printf("%d threads created\n", last);
	exit(0);
}