linux-kernel - Re: 2.6.24 regression: pan hanging unkilleable and un-straceable

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Message-ID: <27437.1201152611@turing-police.cc.vt.edu>
Date:	Thu, 24 Jan 2008 00:30:11 -0500
From:	Valdis.Kletnieks@...edu
To:	Nick Piggin <nickpiggin@...oo.com.au>
Cc:	Mike Galbraith <efault@....de>, Frederik Himpe <fhimpe@...enet.be>,
	linux-kernel@...r.kernel.org
Subject: Re: 2.6.24 regression: pan hanging unkilleable and un-straceable

On Tue, 22 Jan 2008 16:25:58 +1100, Nick Piggin said:
>
> Index: linux-2.6/kernel/sched.c
> ===================================================================
> --- linux-2.6.orig/kernel/sched.c
> +++ linux-2.6/kernel/sched.c
> @@ -4920,8 +4920,7 @@ static void show_task(struct task_struct
>  	printk(KERN_CONT "%5lu %5d %6d\n", free,
>  		task_pid_nr(p), task_pid_nr(p->real_parent));
>  
> -	if (state != TASK_RUNNING)
> -		show_stack(p, NULL);
> +	show_stack(p, NULL);
>  }

Maybe something like this would be better?

	if (state == TASK_RUNNING)
		printk("running task, stack trace may be inaccurate\n");
	show_stack(p, NULL);

Just a thought....

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