From: Cong Wang <xiyou.wangcong@gmail.com>
To: "Alan J. Wylie" <alan@wylie.me.uk>
Cc: "Holger Hoffstätte" <holger@applied-asynchrony.com>,
"Jamal Hadi Salim" <jhs@mojatatu.com>,
regressions@lists.linux.dev, "Jiri Pirko" <jiri@resnulli.us>,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
"Octavian Purdila" <tavip@google.com>,
"Toke Høiland-Jørgensen" <toke@redhat.com>,
stable@vger.kernel.org, "Greg KH" <gregkh@linuxfoundation.org>
Subject: Re: [REGRESSION] 6.14.3 panic - kernel NULL pointer dereference in htb_dequeue
Date: Mon, 28 Apr 2025 16:59:36 -0700 [thread overview]
Message-ID: <aBAWaAubkkTH9FAK@pop-os.localdomain> (raw)
In-Reply-To: <20250428223436.48529979@frodo.int.wylie.me.uk>
On Mon, Apr 28, 2025 at 10:34:36PM +0100, Alan J. Wylie wrote:
> On Mon, 28 Apr 2025 14:02:20 -0700
> Cong Wang <xiyou.wangcong@gmail.com> wrote:
>
> > I doubt it is related to iptables. I will try some TCP traffic on my
> > side later, but I suspect this is related to the type of packets.
> >
> > Meanwhile, since I still can't reproduce it here, do you mind applying
> > both of my patches on top of -net and test again?
> >
[...]
>
> With those patches applied, I've run 5 or 6 SpeedTests, no panics.
>
> There's several WARNINGS in the log, though, about one per run.
My bad, acctually I reproducced it with iperf (TCP traffic) using your
reproducer. I saw the warning/crash within 10 seconds. With the fix I
sent out, I didn't see any after ~10 mininutes, so it should be working
probably.
Thanks!
next prev parent reply other threads:[~2025-04-28 23:59 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-04-21 9:40 [REGRESSION] 6.14.3 panic - kernel NULL pointer dereference in htb_dequeue Alan J. Wylie
2025-04-21 11:50 ` Holger Hoffstätte
2025-04-21 12:10 ` Alan J. Wylie
2025-04-21 19:06 ` Alan J. Wylie
2025-04-21 19:47 ` Holger Hoffstätte
2025-04-21 20:09 ` Alan J. Wylie
2025-04-22 16:51 ` Alan J. Wylie
2025-04-22 17:20 ` Holger Hoffstätte
2025-04-22 20:42 ` Cong Wang
2025-04-22 20:47 ` Alan J. Wylie
2025-04-22 21:49 ` Cong Wang
2025-04-23 9:51 ` Alan J. Wylie
2025-04-23 19:32 ` Cong Wang
2025-04-24 6:53 ` Alan J. Wylie
2025-04-24 12:53 ` Alan J. Wylie
2025-04-25 16:08 ` Cong Wang
2025-04-27 19:11 ` Cong Wang
2025-04-27 19:42 ` Alan J. Wylie
2025-04-27 20:35 ` Alan J. Wylie
2025-04-28 21:02 ` Cong Wang
2025-04-28 21:34 ` Alan J. Wylie
2025-04-28 23:59 ` Cong Wang [this message]
2025-04-28 11:45 ` Greg KH
2025-04-28 12:28 ` Holger Hoffstätte
2025-04-28 23:38 ` Cong Wang
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