modem-manager[11936]: segfault at 0 ip 000000000042926e sp 00007fff523359a0 error 4 in modem-manager[400000+66000]

[Sander Jonkers]

modemmanager reproducible crashes about 1-2 minute after inserting the UMTS USB dongle and selecting the corresponding UMTS service from the network icon. The crash seems to happen immediately after the connection is made and disconnected.

Crash report in dmesg:

[46326.745434] modem-manager[11936]: segfault at 0 ip 000000000042926e sp 00007fff523359a0 error 4 in modem-manager[400000+66000]

[46596.434661] usb 2-1.5: new high-speed USB device number 10 using ehci_hcd
[46596.529157] usb 2-1.5: New USB device found, idVendor=19d2, idProduct=2000
[46596.529165] usb 2-1.5: New USB device strings: Mfr=3, Product=2, SerialNumber=4
[46596.529171] usb 2-1.5: Product: ZTE WCDMA Technologies MSM
[46596.529175] usb 2-1.5: Manufacturer: ZTE,Incorporated
[46596.529179] usb 2-1.5: SerialNumber: MF1900ZTED010000
[46596.532081] scsi11 : usb-storage 2-1.5:1.0
[46597.544489] scsi 11:0:0:0: CD-ROM ZTE USB SCSI CD-ROM 2.31 PQ: 0 ANSI: 2
[46597.549692] sr1: scsi-1 drive
[46597.550000] sr 11:0:0:0: Attached scsi CD-ROM sr1
[46597.550254] sr 11:0:0:0: Attached scsi generic sg2 type 5
[46599.157374] usb 2-1.5: USB disconnect, device number 10
[46604.465307] usb 2-1.5: new high-speed USB device number 11 using ehci_hcd
[46604.559644] usb 2-1.5: New USB device found, idVendor=19d2, idProduct=0017
[46604.559652] usb 2-1.5: New USB device strings: Mfr=3, Product=2, SerialNumber=4
[46604.559657] usb 2-1.5: Product: ZTE WCDMA Technologies MSM
[46604.559662] usb 2-1.5: Manufacturer: ZTE,Incorporated
[46604.559666] usb 2-1.5: SerialNumber: MF1900ZTED010000
[46604.563740] option 2-1.5:1.0: GSM modem (1-port) converter detected
[46604.563942] usb 2-1.5: GSM modem (1-port) converter now attached to ttyUSB0
[46604.564175] option 2-1.5:1.1: GSM modem (1-port) converter detected
[46604.564359] usb 2-1.5: GSM modem (1-port) converter now attached to ttyUSB1
[46604.564567] option 2-1.5:1.2: GSM modem (1-port) converter detected
[46604.564866] usb 2-1.5: GSM modem (1-port) converter now attached to ttyUSB2
[46604.565571] scsi12 : usb-storage 2-1.5:1.4
[46605.564800] scsi 12:0:0:0: CD-ROM ZTE USB SCSI CD-ROM 2.31 PQ: 0 ANSI: 2
[46605.565654] scsi 12:0:0:1: Direct-Access ZTE MMC Storage 2.31 PQ: 0 ANSI: 2
[46605.569942] sr1: scsi-1 drive
[46605.570274] sr 12:0:0:0: Attached scsi CD-ROM sr1
[46605.570512] sr 12:0:0:0: Attached scsi generic sg2 type 5
[46605.570997] sd 12:0:0:1: Attached scsi generic sg3 type 0
[46605.574295] sd 12:0:0:1: [sdb] Attached SCSI removable disk
[46685.830048] modem-manager[12400]: segfault at 0 ip 000000000042926e sp 00007ffff0e86a10 error 4 in modem-manager[400000+66000]
[46685.958923] init: modemmanager main process (12400) killed by SEGV signal
[46685.958968] init: modemmanager main process ended, respawning

sander@R540:~$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 12.10
Release: 12.10
Codename: quantal
sander@R540:~$

sander@R540:~$ apt-cache policy modemmanager
modemmanager:
  Installed: 0.6.0.0.really-0ubuntu1
  Candidate: 0.6.0.0.really-0ubuntu1
  Version table:
 *** 0.6.0.0.really-0ubuntu1 0
        500 http://nl.archive.ubuntu.com/ubuntu/ quantal/main amd64 Packages
        100 /var/lib/dpkg/status
sander@R540:~$

[Sander Jonkers (jonkers)]

Rebooted the same machine into 12.04 LTS, and no problems there. So a problem in 12.10 / modemmanager 0.6.x?

[ 80.113892] usb 2-1.5: new high-speed USB device number 3 using ehci_hcd
[ 80.249975] Initializing USB Mass Storage driver...
[ 80.250102] scsi5 : usb-storage 2-1.5:1.0
[ 80.250214] usbcore: registered new interface driver usb-storage
[ 80.250217] USB Mass Storage support registered.
[ 80.327526] usbcore: registered new interface driver uas
[ 81.248939] scsi 5:0:0:0: CD-ROM ZTE USB SCSI CD-ROM 2.31 PQ: 0 ANSI: 2
[ 81.253352] sr1: scsi-1 drive
[ 81.253568] sr 5:0:0:0: Attached scsi CD-ROM sr1
[ 81.253705] sr 5:0:0:0: Attached scsi generic sg2 type 5
[ 82.909364] usb 2-1.5: USB disconnect, device number 3
[ 88.220380] usb 2-1.5: new high-speed USB device number 4 using ehci_hcd
[ 88.319036] scsi6 : usb-storage 2-1.5:1.4
[ 88.358778] usbcore: registered new interface driver usbserial
[ 88.358796] USB Serial support registered for generic
[ 88.358851] usbcore: registered new interface driver usbserial_generic
[ 88.358853] usbserial: USB Serial Driver core
[ 88.400647] USB Serial support registered for GSM modem (1-port)
[ 88.400734] option 2-1.5:1.0: GSM modem (1-port) converter detected
[ 88.400863] usb 2-1.5: GSM modem (1-port) converter now attached to ttyUSB0
[ 88.400891] option 2-1.5:1.1: GSM modem (1-port) converter detected
[ 88.400991] usb 2-1.5: GSM modem (1-port) converter now attached to ttyUSB1
[ 88.401018] option 2-1.5:1.2: GSM modem (1-port) converter detected
[ 88.401168] usb 2-1.5: GSM modem (1-port) converter now attached to ttyUSB2
[ 88.401222] usbcore: registered new interface driver option
[ 88.401225] option: v0.7.2:USB Driver for GSM modems
[ 89.318654] scsi 6:0:0:0: CD-ROM ZTE USB SCSI CD-ROM 2.31 PQ: 0 ANSI: 2
[ 89.322897] scsi 6:0:0:1: Direct-Access ZTE MMC Storage 2.31 PQ: 0 ANSI: 2
[ 89.332656] sr1: scsi-1 drive
[ 89.332934] sr 6:0:0:0: Attached scsi CD-ROM sr1
[ 89.333903] sr 6:0:0:0: Attached scsi generic sg2 type 5
[ 89.334173] sd 6:0:0:1: Attached scsi generic sg3 type 0
[ 89.337719] sd 6:0:0:1: [sdb] Attached SCSI removable disk
[ 166.230341] PPP BSD Compression module registered
[ 166.247097] PPP Deflate Compression module registered

sander@R540:~$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 12.04 LTS
Release: 12.04
Codename: precise
sander@R540:~$

sander@R540:~$ apt-cache policy modemmanager
modemmanager:
  Installed: 0.5.2.0-0ubuntu2
  Candidate: 0.5.2.0-0ubuntu2
  Version table:
 *** 0.5.2.0-0ubuntu2 0
        500 http://nl.archive.ubuntu.com/ubuntu/ precise/main amd64 Packages
        100 /var/lib/dpkg/status
sander@R540:~$

ifconfig:

ppp0 Link encap:Point-to-Point Protocol
          inet addr:10.46.241.202 P-t-P:10.64.64.64 Mask:255.255.255.255
          UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1500 Metric:1
          RX packets:7 errors:0 dropped:0 overruns:0 frame:0
          TX packets:8 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:3
          RX bytes:130 (130.0 B) TX bytes:181 (181.0 B)
...

[Sander Jonkers (jonkers)]

On 12.10: Another UMTS dongle, with another SIM, work with problems (dmesg below). So it has to do with the dongle hardware / driver?

[51000.600177] usb 2-1.5: new high-speed USB device number 16 using ehci_hcd
[51000.694750] usb 2-1.5: New USB device found, idVendor=12d1, idProduct=1446
[51000.694758] usb 2-1.5: New USB device strings: Mfr=3, Product=2, SerialNumber=0
[51000.694763] usb 2-1.5: Product: HUAWEI Mobile
[51000.694768] usb 2-1.5: Manufacturer: Huawei Technologies
[51000.698512] scsi29 : usb-storage 2-1.5:1.0
[51000.698995] scsi30 : usb-storage 2-1.5:1.1
[51001.696254] scsi 29:0:0:0: CD-ROM HUAWEI Mass Storage 2.31 PQ: 0 ANSI: 2
[51001.696518] scsi 30:0:0:0: Direct-Access HUAWEI TF CARD Storage PQ: 0 ANSI: 2
[51001.699691] sr1: scsi-1 drive
[51001.699925] sr 29:0:0:0: Attached scsi CD-ROM sr1
[51001.700117] sr 29:0:0:0: Attached scsi generic sg2 type 5
[51001.700703] sd 30:0:0:0: Attached scsi generic sg3 type 0
[51001.705038] sd 30:0:0:0: [sdb] Attached SCSI removable disk
[51002.129486] usb 2-1.5: USB disconnect, device number 16
[51006.418667] usb 2-1.5: new high-speed USB device number 17 using ehci_hcd
[51006.513211] usb 2-1.5: New USB device found, idVendor=12d1, idProduct=14ac
[51006.513216] usb 2-1.5: New USB device strings: Mfr=4, Product=3, SerialNumber=0
[51006.513219] usb 2-1.5: Product: HUAWEI Mobile
[51006.513222] usb 2-1.5: Manufacturer: Huawei Technologies
[51006.518244] option 2-1.5:1.0: GSM modem (1-port) converter detected
[51006.518521] usb 2-1.5: GSM modem (1-port) converter now attached to ttyUSB0
[51006.520660] cdc_ether 2-1.5:1.1: wwan0: register 'cdc_ether' at usb-0000:00:1d.0-1.5, Mobile Broadband Network Device, 02:50:f3:00:00:00
[51006.520966] option 2-1.5:1.3: GSM modem (1-port) converter detected
[51006.521109] usb 2-1.5: GSM modem (1-port) converter now attached to ttyUSB1
[51006.521231] option 2-1.5:1.4: GSM modem (1-port) converter detected
[51006.521372] usb 2-1.5: GSM modem (1-port) converter now attached to ttyUSB2
[51006.521713] scsi31 : usb-storage 2-1.5:1.5
[51006.522071] scsi32 : usb-storage 2-1.5:1.6
[51007.517893] scsi 31:0:0:0: CD-ROM HUAWEI Mass Storage 2.31 PQ: 0 ANSI: 2
[51007.521583] sr1: scsi-1 drive
[51007.521731] sr 31:0:0:0: Attached scsi CD-ROM sr1
[51007.521818] sr 31:0:0:0: Attached scsi generic sg2 type 5
[51007.523122] scsi 32:0:0:0: Direct-Access HUAWEI TF CARD Storage PQ: 0 ANSI: 2
[51007.523873] sd 32:0:0:0: Attached scsi generic sg3 type 0
[51007.525610] sd 32:0:0:0: [sdb] Attached SCSI removable disk

ppp0 Link encap:Point-to-Point Protocol
          inet addr:10.255.36.117 P-t-P:10.64.64.64 Mask:255.255.255.255
          UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1500 Metric:1
          RX packets:3276 errors:2 dropped:0 overruns:0 frame:0
          TX packets:3356 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:3
          RX bytes:1729084 (1.7 MB) TX bytes:410818 (410.8 KB)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.