Public bug reported:
I have a problem with Huawei's GSM modem.
The device works correctly, but periodically restarts in mass storage mode.
Bus 002 Device 072: ID 12d1:1003 Huawei Technologies Co., Ltd. E220
HSDPA Modem / E230/E270/E870 HSDPA/HSUPA Modem
When the device reboots, I see the following entries in dmesg
[ 2920.234149] usb-storage 2-1.2:1.2: USB Mass Storage device detected
[ 2920.234879] scsi host88: usb-storage 2-1.2:1.2
[ 2920.249986] usbcore: registered new interface driver option
[ 2920.250011] usbserial: USB Serial support registered for GSM modem (1-port)
[ 2921.237843] scsi 88:0:0:0: CD-ROM HUAWEI Mass Storage 2.31
PQ: 0 ANSI: 2
[ 2921.244733] sr 88:0:0:0: [sr1] scsi-1 drive
[ 2921.244936] sr 88:0:0:0: Attached scsi CD-ROM sr1
[ 2921.245308] sr 88:0:0:0: Attached scsi generic sg2 type 5
[ 3075.739072] generic ttyUSB0: usb_serial_generic_read_bulk_callback - urb
stopped: -32
[ 3075.740502] generic ttyUSB0: usb_serial_generic_read_bulk_callback - urb
stopped: -32
[ 3076.591034] generic ttyUSB0: usb_serial_generic_write_bulk_callback - urb
stopped: -32
[ 3076.592478] generic ttyUSB0: usb_serial_generic_write_bulk_callback - urb
stopped: -32
[ 3077.252186] generic ttyUSB0: generic converter now disconnected from ttyUSB0
[ 3077.252243] usbserial_generic 2-1.2:1.0: device disconnected
[ 3077.252390] generic ttyUSB1: generic converter now disconnected from ttyUSB1
[ 3077.252415] usbserial_generic 2-1.2:1.1: device disconnected
[ 3077.323440] usb 2-1.2: reset full-speed USB device number 72 using ehci-pci
[ 3077.395427] usb 2-1.2: device descriptor read/64, error -32
[ 3077.571409] usb 2-1.2: device descriptor read/64, error -32
[ 3077.747391] usb 2-1.2: reset full-speed USB device number 72 using ehci-pci
[ 3077.819418] usb 2-1.2: device descriptor read/64, error -32
[ 3077.995413] usb 2-1.2: device descriptor read/64, error -32
[ 3078.171393] usb 2-1.2: reset full-speed USB device number 72 using ehci-pci
[ 3078.579382] usb 2-1.2: device not accepting address 72, error -32
[ 3078.651382] usb 2-1.2: reset full-speed USB device number 72 using ehci-pci
[ 3079.059371] usb 2-1.2: device not accepting address 72, error -32
[ 3079.060697] usb 2-1.2: USB disconnect, device number 72
[ 3080.747303] usb 2-1.2: new full-speed USB device number 73 using ehci-pci
[ 3080.842355] usb 2-1.2: New USB device found, idVendor=12d1, idProduct=1003
[ 3080.842358] usb 2-1.2: New USB device strings: Mfr=1, Product=2,
SerialNumber=0
[ 3080.842361] usb 2-1.2: Product: HUAWEI Mobile
[ 3080.842363] usb 2-1.2: Manufacturer: HUAWEI Technologies
[ 3080.843387] usb-storage 2-1.2:1.0: USB Mass Storage device detected
[ 3080.844249] scsi host89: usb-storage 2-1.2:1.0
[ 3080.988474] usb 2-1.2: USB disconnect, device number 73
[ 3082.099272] usb 2-1.2: new full-speed USB device number 74 using ehci-pci
[ 3082.194840] usb 2-1.2: New USB device found, idVendor=12d1, idProduct=1003
[ 3082.194843] usb 2-1.2: New USB device strings: Mfr=1, Product=2,
SerialNumber=0
[ 3082.194846] usb 2-1.2: Product: HUAWEI Mobile
[ 3082.194849] usb 2-1.2: Manufacturer: HUAWEI Technologies
[ 3082.195867] usb-storage 2-1.2:1.0: USB Mass Storage device detected
[ 3082.196278] usbserial_generic 2-1.2:1.0: The "generic" usb-serial driver is
only for testing and one-off prototypes.
[ 3082.196281] usbserial_generic 2-1.2:1.0: Tell linux-...@vger.kernel.org to
add your device to a proper driver.
[ 3082.196284] usbserial_generic 2-1.2:1.0: generic converter detected
[ 3082.196358] usb 2-1.2: generic converter now attached to ttyUSB1
[ 3082.196631] usb-storage 2-1.2:1.1: USB Mass Storage device detected
[ 3082.196726] usbserial_generic 2-1.2:1.1: The "generic" usb-serial driver is
only for testing and one-off prototypes.
[ 3082.196729] usbserial_generic 2-1.2:1.1: Tell linux-...@vger.kernel.org to
add your device to a proper driver.
[ 3082.196731] usbserial_generic 2-1.2:1.1: generic converter detected
[ 3082.196808] usb 2-1.2: generic converter now attached to ttyUSB2
[ 3082.196876] usb-storage 2-1.2:1.2: USB Mass Storage device detected
[ 3082.197513] scsi host92: usb-storage 2-1.2:1.2
[ 3083.197619] scsi 92:0:0:0: CD-ROM HUAWEI Mass Storage 2.31
PQ: 0 ANSI: 2
[ 3083.203598] sr 92:0:0:0: [sr1] scsi-1 drive
[ 3083.203766] sr 92:0:0:0: Attached scsi CD-ROM sr1
[ 3083.203880] sr 92:0:0:0: Attached scsi generic sg2 type 5
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 16.04.6 LTS
Release: 16.04
Codename: xenial
Linux sql 4.4.0-210-generic #242-Ubuntu SMP Fri Apr 16 09:57:56 UTC 2021
x86_64 x86_64 x86_64 GNU/Linux
** Affects: linux (Ubuntu)
Importance: Undecided
Status: Incomplete
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https://bugs.launchpad.net/bugs/1973735
Title:
GSM modem reset in mass storage mode
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