From: Oliver Neukum <oneukum@suse.com>
To: wim@djo.tudelft.nl
Cc: linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org
Subject: Re: crash by cdc_acm driver in kernels 4.8-rc1/5
Date: Thu, 08 Sep 2016 14:20:38 +0200 [thread overview]
Message-ID: <1473337238.32073.2.camel@suse.com> (raw)
In-Reply-To: <20160908115803.GA28274@djo.tudelft.nl>
On Thu, 2016-09-08 at 13:58 +0200, Wim Osterholt wrote:
> L.S.
>
> up to vanilla kernel 4.7.3 I've seen no problems.
> On two different dekstops running vanilla kernel-4.8 I can force a
> crash by
> inserting an USB-modem that requires module cdc_acm.ko .
> (Strangely enough that doesn't happen on my laptop.)
>
> The moment that cdc_acm loads (manually or automatically - the
> hardware needs
> to be present) a kernel oops occurs.
> The system remains responsive for a while, but a reboot is necessairy.
> If you try a neat shutdown, the system will hang forever after
> 'remounting fs
> read-only'. You'll need a power-down.
>
> The oops tells things that I didn't all write down, but it says
> null pointer dereference at 00000246
That is the important part. I am sorry, but without the oops
nobody can help you. Please capture it
dmesg > /root/oops.txt
and report it.
Regards
Oliver
next prev parent reply other threads:[~2016-09-08 12:25 UTC|newest]
Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-08 11:58 crash by cdc_acm driver in kernels 4.8-rc1/5 Wim Osterholt
2016-09-08 12:20 ` Oliver Neukum [this message]
2016-09-08 12:58 ` Wim Osterholt
2016-09-08 13:05 ` Oliver Neukum
2016-09-08 15:00 ` Wim Osterholt
2016-09-08 16:54 ` Wim Osterholt
2016-09-09 13:24 ` Wim Osterholt
2016-09-12 2:43 ` Wim Osterholt
2016-09-20 13:05 ` Oliver Neukum
2016-09-20 15:45 ` Wim Osterholt
2016-09-21 12:21 ` Oliver Neukum
2016-09-21 16:21 ` Wim Osterholt
2016-09-21 16:41 ` Wim Osterholt
2016-09-22 14:40 ` Oliver Neukum
2016-09-22 17:56 ` Wim Osterholt
2016-09-22 19:21 ` Wim Osterholt
2016-09-23 10:04 ` Wim Osterholt
2016-09-27 16:34 ` Wim Osterholt
2016-09-28 9:16 ` Oliver Neukum
2016-09-28 14:46 ` Wim Osterholt
2016-09-28 15:08 ` Wim Osterholt
2016-09-28 15:23 ` Oliver Neukum
2016-09-29 13:26 ` Wim Osterholt
2016-10-06 10:53 ` Oliver Neukum
2016-10-17 14:10 ` Oliver Neukum
2016-10-17 15:20 ` Wim Osterholt
2016-10-18 12:18 ` Oliver Neukum
2016-10-18 14:51 ` Wim Osterholt
2016-11-05 13:34 ` Wim Osterholt
2016-11-15 0:16 ` Wim Osterholt
2016-11-15 11:07 ` Oliver Neukum
2016-11-15 11:26 ` poma
2016-11-15 13:29 ` Wim Osterholt
2016-11-16 12:34 ` Oliver Neukum
2016-11-16 15:07 ` Wim Osterholt
2016-11-17 1:57 ` Wim Osterholt
2016-11-17 9:14 ` Wim Osterholt
2016-11-17 16:11 ` Wim Osterholt
2016-11-21 13:19 ` Oliver Neukum
2016-11-21 15:58 ` Wim Osterholt
2016-11-21 20:23 ` Wim Osterholt
2016-11-21 23:49 ` poma
2016-11-22 17:50 ` Bjørn Mork
2016-11-23 0:48 ` Wim Osterholt
2016-11-22 15:38 ` Wim Osterholt
2016-11-22 18:08 ` Bjørn Mork
2016-11-23 0:54 ` Wim Osterholt
2016-11-23 7:37 ` Bjørn Mork
2016-11-23 15:02 ` Alan Stern
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