netdev - Re: Fw: [Bug 60669] Kernel panic when using negative priority for HTB class

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Message-ID: <ktfdq8$882$1@ger.gmane.org>
Date:	Fri, 2 Aug 2013 04:50:16 +0000 (UTC)
From:	Cong Wang <xiyou.wangcong@...il.com>
To:	netdev@...r.kernel.org
Subject: Re: Fw: [Bug 60669] Kernel panic when using negative priority for
 HTB class

On Fri, 02 Aug 2013 at 04:12 GMT, Stephen Hemminger <stephen@...workplumber.org> wrote:
>
> --- Comment #2 from _Vi <vi0oss@...il.com> ---
> Reproducible on 3.11.0-rc3
>
> Looks like negative priority value is essential for the kernel panic.
>

There is a check for prio:

                if ((cl->prio = hopt->prio) >= TC_HTB_NUMPRIO)
		                        cl->prio = TC_HTB_NUMPRIO - 1;
					

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