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: Wed, 28 Sep 2016 17:23:30 +0200 [thread overview]
Message-ID: <1475076210.4635.18.camel@suse.com> (raw)
In-Reply-To: <20160928150856.GA1424@djo.tudelft.nl>
On Wed, 2016-09-28 at 17:08 +0200, Wim Osterholt wrote:
> On Wed, Sep 28, 2016 at 11:16:04AM +0200, Oliver Neukum wrote:
> > this should show you where it crashes. In addition I've attached
> > a patch with paranoid debugging. Could you compile and test a kernel
> > with it?
> >
> > Regards
> > Oliver
>
> If you mean
> echo "module cdc_acm +mpf" > /sys/kernel/debug/dynamic_debug/control
> etc, then it will take some time because I don't have the cabling not
> available now for a serial dump.
>
> Just 4.8-rc8 with the patched modules gave an oops of less than one screen
> while the machine stayed responsive long enough to grab it with the mouse
> and put it in a file:
>
> HP src # sync
> HP src # [ 3744.914184] BUG: unable to handle kernel NULL pointer dereference at 00000249
The last view lines before that please with the debugging level ramped
up to 9 please.
Regards
Oliver
next prev parent reply other threads:[~2016-09-28 15:23 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
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 [this message]
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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