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: Tue, 18 Oct 2016 14:18:43 +0200 [thread overview]
Message-ID: <1476793123.2637.3.camel@suse.com> (raw)
In-Reply-To: <20161017152042.GA26559@djo.tudelft.nl>
On Mon, 2016-10-17 at 17:20 +0200, Wim Osterholt wrote:
> On Mon, Oct 17, 2016 at 04:10:45PM +0200, Oliver Neukum wrote:
> > Hi,
> >
> > I got one of those devices. However, I don't get a crash.
> > Could you please give me instructions on how you trigger it?
>
> That's not too hard, just plug it in. :-)
>
> However you must have set cdc_acm in your kernel, or availabe as a module.
> It happens on all my machines on kernels 4.8 and 4.9.
> Now, all my kernel configs will differ a bit, but must have something
> peculiar in common. Or you've received a totally different device.
>
> Here's one config at http://webserver.djo.tudelft.nl/.config-4.8.1
>
> Many options are inherited by 'make oldconfig' from version to version,
> without me knowing what it all means. So maybe it's just a weird combination
> of options then?
Oct 18 14:05:07 linux-dtbq.site kernel: usb 1-9: new full-speed USB device number 10 using xhci_hcd
Oct 18 14:05:07 linux-dtbq.site mtp-probe[2583]: checking bus 1, device 10: "/sys/devices/pci0000:00/0000:00:14.0/usb1/1-9"
Oct 18 14:05:07 linux-dtbq.site mtp-probe[2583]: bus: 1, device: 10 was not an MTP device
Oct 18 14:05:07 linux-dtbq.site kernel: usb 1-9: New USB device found, idVendor=0572, idProduct=1340
Oct 18 14:05:07 linux-dtbq.site kernel: usb 1-9: New USB device strings: Mfr=1, Product=2, SerialNumber=3
Oct 18 14:05:07 linux-dtbq.site kernel: usb 1-9: Product: USB Modem
Oct 18 14:05:07 linux-dtbq.site kernel: usb 1-9: Manufacturer: Conexant
Oct 18 14:05:07 linux-dtbq.site kernel: usb 1-9: SerialNumber: 12345678
Oct 18 14:05:07 linux-dtbq.site kernel: cdc_acm 1-9:1.0: ttyACM0: USB ACM device
Oct 18 14:05:07 linux-dtbq.site kernel: usbcore: registered new interface driver cdc_acm
Oct 18 14:05:07 linux-dtbq.site kernel: cdc_acm: USB Abstract Control Model driver for USB modems and ISDN adapters
Oct 18 14:05:11 linux-dtbq.site ModemManager[901]: <info> Creating modem with plugin 'Generic' and '1' ports
Oct 18 14:05:11 linux-dtbq.site ModemManager[901]: <info> Modem for device at '/sys/devices/pci0000:00/0000:00:14.0/usb1/1-9' successfully created
Oct 18 14:05:11 linux-dtbq.site ModemManager[901]: <warn> Modem couldn't be initialized: couldn't load current capabilities: Failed to determine modem capabilities.
Oct 18 14:05:11 linux-dtbq.site NetworkManager[945]: <warn> (ttyACM0): failed to look up interface index
Oct 18 14:05:11 linux-dtbq.site NetworkManager[945]: <info> (ttyACM0): device state change: unmanaged -> unavailable (reason 'none') [10 20 0]
Oct 18 14:05:11 linux-dtbq.site NetworkManager[945]: <info> (ttyACM0): deactivating device (reason 'none') [0]
Oct 18 14:05:11 linux-dtbq.site NetworkManager[945]: <info> (ttyACM0): modem state 'unknown'
Oct 18 14:05:11 linux-dtbq.site NetworkManager[945]: <info> (ttyACM0): new Broadband device (driver: 'cdc_acm' ifindex: 0)
Oct 18 14:05:11 linux-dtbq.site NetworkManager[945]: <info> (ttyACM0): exported as /org/freedesktop/NetworkManager/Devices/3
It definitely does not crash and is probed and your .config is not
extremely unusual.
I am afraid unless you test the last patch I sent we will not make
progress. Something odd is going on.
Regards
Oliver
next prev parent reply other threads:[~2016-10-18 12:24 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
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 [this message]
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
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1476793123.2637.3.camel@suse.com \
--to=oneukum@suse.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-usb@vger.kernel.org \
--cc=wim@djo.tudelft.nl \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).