From: Riccardo Magliocchetti <riccardo.magliocchetti@gmail.com>
To: Oliver Neukum <oneukum@suse.de>
Cc: linux-usb@vger.kernel.org,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Oliver Neukum <oliver@neukum.name>,
Greg Kroah-Hartman <gregkh@suse.de>
Subject: Re: [2.6.39] crash in acm_ctrl_msg+0x16/0x59
Date: Mon, 30 May 2011 11:19:20 +0200 [thread overview]
Message-ID: <4DE36118.4050706@gmail.com> (raw)
In-Reply-To: <201105300754.14490.oneukum@suse.de>
Hi,
Il 30/05/2011 07:54, Oliver Neukum ha scritto:
> Am Sonntag, 29. Mai 2011, 16:04:02 schrieb Riccardo Magliocchetti:
>
>> mtp-probe: bus: 6, device: 4 was not an MTP device
>> [20462.901834] cdc_acm 6-1:1.0: ttyACM0: USB ACM device
>> [20462.904417] usbcore: registered new interface driver cdc_acm
>> [20462.904420] cdc_acm: v0.26:USB Abstract Control Model driver for USB
>> modems and ISDN adapters
>> [20463.624142] usb 6-1: USB disconnect, device number 4
>> [20463.641859] CPU 0
>>
>> This is the stracktrace:
>>
>> acm_ctrl_msg+0x16/0x59
>> mutex_lock+0x13/0x2a
>> acm_port_down+0x4c/0xcb
>> acm_tty_close+0x75/0x93
>> tty_release+0x1b5/0x47c
>> ? compat_do_readv_write+0x199/0x1ae
>> fput+0xf8/0x1ad
>> filp_close+0x69/0x75
>> sys_close+0x8a/0xea
>> sysenter_dispatch+0x07/0x32
>
> So we are trying to talk to a device that is already gone.
> Is there anything unusual about your device? Could you
> post "lsusb -v"?
Yes, the unusual thing is that is very prone to freezing when booting,
in fact it freezed when i got the crash in the laptop. Will post lsusb
output later in the day.
thanks,
riccardo
next prev parent reply other threads:[~2011-05-30 9:19 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-29 14:04 [2.6.39] crash in acm_ctrl_msg+0x16/0x59 Riccardo Magliocchetti
2011-05-30 5:54 ` Oliver Neukum
2011-05-30 9:19 ` Riccardo Magliocchetti [this message]
2011-05-30 19:32 ` Riccardo Magliocchetti
2011-05-31 8:37 ` Oliver Neukum
2011-06-01 7:05 ` Riccardo Magliocchetti
2011-06-01 7:34 ` Oliver Neukum
2011-06-01 18:04 ` Riccardo Magliocchetti
2011-06-02 19:34 ` Oliver Neukum
2011-06-03 7:06 ` Riccardo Magliocchetti
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