From: Wolfgang Walter <linux@stwm.de>
To: Cong Wang <xiyou.wangcong@gmail.com>
Cc: LKML <linux-kernel@vger.kernel.org>,
Hannes Frederic Sowa <hannes@stressinduktion.org>,
Linux Kernel Network Developers <netdev@vger.kernel.org>
Subject: Re: kernel >= 4.0: crashes when using traceroute6 with isatap
Date: Thu, 07 May 2015 00:11:20 +0200 [thread overview]
Message-ID: <1489362.AtetvSCXN1@h2o.as.studentenwerk.mhn.de> (raw)
In-Reply-To: <CAM_iQpWei83_pEoiDWKvHHaj02_D6WGEUHYfEJWM05-RuN3CEw@mail.gmail.com>
Am Mittwoch, 6. Mai 2015, 11:15:18 schrieben Sie:
> (Cc'ing netdev.)
>
> On Sat, May 2, 2015 at 5:29 AM, Wolfgang Walter <linux@stwm.de> wrote:
> > Am Samstag, 2. Mai 2015, 02:16:36 schrieb Wolfgang Walter:
> >> Hello,
> >>
> >> kernel 4.0 (and 4.0.1) crashes immediately when I use traceroute6 with an
> >> isatap-tunnel.
> >
> > I did some further tests. To trigger the crash you need
> >
> > * isatap-tunnel (probably any sit-tunnel will do it)
> > * raw-socket
> > * udp
> >
> > Using icmpv6 or tcp i.e. does not trigger it.
>
> Do you have a script to reproduce it?
>
>
> Thanks for the bug report!
You need a isatap-server with say ipv4-address $X
Then, on host with 4.0, start isatapd: isatapd --mtu 1280 $X
then do
traceroute6 www.google.de
Regards,
--
Wolfgang Walter
Studentenwerk München
Anstalt des öffentlichen Rechts
next prev parent reply other threads:[~2015-05-06 22:11 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1770409.aMESoOv08f@h2o.as.studentenwerk.mhn.de>
[not found] ` <1958390.Ugr57PpLDS@h2o.as.studentenwerk.mhn.de>
2015-05-06 18:15 ` kernel >= 4.0: crashes when using traceroute6 with isatap Cong Wang
2015-05-06 19:10 ` Eric Dumazet
2015-05-06 22:04 ` Wolfgang Walter
2015-05-06 22:42 ` Eric Dumazet
2015-05-07 0:04 ` Wolfgang Walter
2015-05-12 16:34 ` Vlad Yasevich
2015-05-06 22:11 ` Wolfgang Walter [this message]
2015-05-12 20:18 ` Vlad Yasevich
2015-05-12 20:36 ` Eric Dumazet
2015-05-12 20:46 ` Vlad Yasevich
2015-05-14 0:32 ` Wolfgang Walter
[not found] ` <1431002384.22756.0.camel@edumazet-glaptop2.roam.corp.google.com>
[not found] ` <12346713.ZyFExCo3ux@h2o.as.studentenwerk.mhn.de>
[not found] ` <2088438.42IY8hjjd5@h2o.as.studentenwerk.mhn.de>
[not found] ` <1431122268.22756.41.camel@edumazet-glaptop2.roam.corp.google.com>
2015-05-08 22:22 ` [PATCH net] Revert "ipv6: Allow for partial checksums on non-ufo packets" Eric Dumazet
2015-05-10 23:53 ` David Miller
2015-05-12 18:05 ` Vlad Yasevich
2015-05-12 19:07 ` Eric Dumazet
2015-05-06 18:14 kernel >= 4.0: crashes when using traceroute6 with isatap Cong Wang
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