Error reading from istream: Error reading from file descriptor: No such device

Tue Mar 10 12:02:21 UTC 2020

Hi,

so no one here have an idea about these line ?

Mar 10 11:57:17 wan049htz kernel: [ 4574.899202] qmi_wwan 1-4.4:1.10: nonzero urb status received: -71
Mar 10 11:57:17 wan049htz kernel: [ 4574.899492] qmi_wwan 1-4.4:1.10: wdm_int_callback - 0 bytes
Mar 10 11:57:17 wan049htz kernel: [ 4574.995226] qmi_wwan 1-4.4:1.10: nonzero urb status received: -71
Mar 10 11:57:17 wan049htz kernel: [ 4574.995511] qmi_wwan 1-4.4:1.10: wdm_int_callback - 0 bytes

when using this commande line :

qmicli -d /dev/cdc-wdm1 --wds-start-network=apn='free',username='free',password='free'  --client-no-release-cid '

Regards,

Nicolas

Le 06/03/2020 à 09:56, Nicolas RENAULT a écrit :

Hi,

Le 06/03/2020 à 09:38, Aleksander Morgado a écrit :

Hey,

I have a problem :

* Debian stretch  / kernel 4.9.0.12
* Sierra Wireless, Incorporated  MC7304
* libqmi 1.22.6

when launching connections :

Loading profile at /etc/qmi-network.conf...
     APN: free
     APN user: free
     APN password: free
     qmi-proxy: no
Checking data format with 'qmicli -d /dev/cdc-wdm1 --wda-get-data-format '...
[06 Mar 2020, 07:53:15] -Warning ** [/dev/cdc-wdm1] requested auto mode but no MBIM QMUX support available
Device link layer protocol retrieved: 802-3
Getting expected data format with 'qmicli -d /dev/cdc-wdm1 --get-expected-data-format'...
[06 Mar 2020, 07:53:15] -Warning ** [/dev/cdc-wdm1] requested auto mode but no MBIM QMUX support available
Expected link layer protocol retrieved: 802-3
Device and kernel link layer protocol match: 802-3
Starting network with 'qmicli -d /dev/cdc-wdm1 --wds-start-network=apn='free',username='free',password='free',ip-type=4  --client-no-release-cid '...
[06 Mar 2020, 07:53:15] -Warning ** [/dev/cdc-wdm1] requested auto mode but no MBIM QMUX support available
[06 Mar 2020, 07:53:22] -Warning ** Error reading from istream: Error reading from file descriptor: No such device
error: operation failed: operation failed and couldn't be aborted: Cannot write message: Error writing to file descriptor: No such device
Saving state at /tmp/qmi-network-state-cdc-wdm1... (CID: 9)
error: network start failed, no packet data handle
[06 Mar 2020, 07:54:00] -Warning ** [/dev/cdc-wdm1] requested auto mode but no MBIM QMUX support available
error: couldn't release client: QMI protocol error (3): 'Internal'
Clearing state at /tmp/qmi-network-state-cdc-wdm1...

I deploy libqmi on lot of the same hardware but got problem on the two last installation.
I think the main events is "Error reading from istream: Error reading from file descriptor: No such device"

Yes that is the main event. This totally looks like the device reboots
itself for some reason? Can you run "dmesg -w" while you run the test
to see if the device goes away and comes back?

during the ifup , on dmesg

[ 5470.976648] qmi_wwan 1-4.4:1.10: nonzero urb status received: -71
[ 5470.976938] qmi_wwan 1-4.4:1.10: wdm_int_callback - 0 bytes
[ 5471.072679] qmi_wwan 1-4.4:1.10: nonzero urb status received: -71
[ 5471.072963] qmi_wwan 1-4.4:1.10: wdm_int_callback - 0 bytes
[ 5471.168718] qmi_wwan 1-4.4:1.10: nonzero urb status received: -71
[ 5471.169004] qmi_wwan 1-4.4:1.10: wdm_int_callback - 0 bytes
[ 5471.170556] usb 1-4.4: USB disconnect, device number 11
[ 5471.171488] qcserial ttyUSB0: Qualcomm USB modem converter now
disconnected from ttyUSB0
[ 5471.171598] qcserial 1-4.4:1.0: device disconnected
[ 5471.172970] qcserial ttyUSB1: Qualcomm USB modem converter now
disconnected from ttyUSB1
[ 5471.173078] qcserial 1-4.4:1.2: device disconnected
[ 5471.174313] qcserial ttyUSB2: Qualcomm USB modem converter now
disconnected from ttyUSB2
[ 5471.174422] qcserial 1-4.4:1.3: device disconnected
[ 5471.174908] qmi_wwan 1-4.4:1.8 wwan0: unregister 'qmi_wwan'
usb-0000:00:14.0-4.4, WWAN/QMI device
[ 5471.202621] qmi_wwan 1-4.4:1.10 wwan1: unregister 'qmi_wwan'
usb-0000:00:14.0-4.4, WWAN/QMI device

error Warning ** Error reading from istream: Error reading from file
descriptor: No such device

[ 5482.373961] usb 1-4.4: new high-speed USB device number 12 using xhci_hcd
[ 5482.474860] usb 1-4.4: config 1 has an invalid interface number: 8
but max is 5
[ 5482.474875] usb 1-4.4: config 1 has an invalid interface number: 10
but max is 5
[ 5482.474885] usb 1-4.4: config 1 has an invalid interface number: 11
but max is 5
[ 5482.474895] usb 1-4.4: config 1 has no interface number 1
[ 5482.474905] usb 1-4.4: config 1 has no interface number 4
[ 5482.474913] usb 1-4.4: config 1 has no interface number 5
[ 5482.475729] usb 1-4.4: New USB device found, idVendor=1199,
idProduct=68c0, bcdDevice= 0.06
[ 5482.475744] usb 1-4.4: New USB device strings: Mfr=1, Product=2,
SerialNumber=3
[ 5482.475753] usb 1-4.4: Product: MC7304
[ 5482.475762] usb 1-4.4: Manufacturer: Sierra Wireless, Incorporated
[ 5482.484238] qcserial 1-4.4:1.0: Qualcomm USB modem converter detected
[ 5482.485152] usb 1-4.4: Qualcomm USB modem converter now attached to
ttyUSB0
[ 5482.487081] qcserial 1-4.4:1.2: Qualcomm USB modem converter detected
[ 5482.487251] usb 1-4.4: Qualcomm USB modem converter now attached to
ttyUSB1
[ 5482.488371] qcserial 1-4.4:1.3: Qualcomm USB modem converter detected
[ 5482.488529] usb 1-4.4: Qualcomm USB modem converter now attached to
ttyUSB2
[ 5482.490115] qmi_wwan 1-4.4:1.8: cdc-wdm0: USB WDM device
[ 5482.490566] qmi_wwan 1-4.4:1.8 wwan0: register 'qmi_wwan' at
usb-0000:00:14.0-4.4, WWAN/QMI device, b6:a2:88:6d:70:90
[ 5482.491955] qmi_wwan 1-4.4:1.10: cdc-wdm1: USB WDM device
[ 5482.492544] qmi_wwan 1-4.4:1.10 wwan1: register 'qmi_wwan' at
usb-0000:00:14.0-4.4, WWAN/QMI device, b6:a2:88:6d:70:90

effective modem reboot I thinks.

So now , what is "qmi_wwan 1-4.4:1.10: nonzero urb status received: -71"

Do I have the take care of "Warning ** [/dev/cdc-wdm1] requested auto mode but no MBIM QMUX support available".

No, you can ignore that. I think we should avoid printing that warning
if MBIM support was not built in libqmi, it's very misleading. Again,
just ignore that specific message.

regards,

Nicolas.

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