netdev - Re: kernel panic in 4.2.3, rb_erase in sch

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Message-ID: <CAHA+R7MNxEkMfyQa56d0HRk2HxeqsduUfM3BkBh=Oxm2yNBVaA@mail.gmail.com>
Date:	Tue, 3 Nov 2015 14:06:05 -0800
From:	Cong Wang <cwang@...pensource.com>
To:	Denys Fedoryshchenko <nuclearcat@...learcat.com>
Cc:	Jamal Hadi Salim <jhs@...atatu.com>,
	"David S. Miller" <davem@...emloft.net>,
	netdev <netdev@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: kernel panic in 4.2.3, rb_erase in sch_fq

On Mon, Nov 2, 2015 at 6:11 AM, Denys Fedoryshchenko
<nuclearcat@...learcat.com> wrote:
> Hi!
>
> Actually seems i was getting this panic for a while (once per week) on
> loaded pppoe server, but just now was able to get full panic message.
> After checking commit logs on sch_fq.c i didnt seen any fixes, so probably
> upgrading to newer kernel wont help?


Can you share your `tc qdisc show dev xxxx` with us? And how to reproduce
it? I tried to setup htb+fq and then flip the interface back and forth
but I don't
see any crash.

Thanks.
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