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
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