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[Brad Figg <brad.figg@xxxxxxxxxxxxx>]

This bug is missing log files that will aid in diagnosing the problem.
>From a terminal window please run:

apport-collect 1591644

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable
to run this command, please add a comment stating that fact and change
the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.

** Changed in: linux (Ubuntu)
       Status: New => Incomplete

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https://bugs.launchpad.net/bugs/1591644

Title:
  Regression: YOTA LU150 modem does not work in 16.04

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  On the Ubuntu 15.10 and older versions YOTA LU150 modem work fine, but on Ubuntu 16.04 it does not work.
  lsusb on 15.10:
  Bus 002 Device 007: ID 1076:8002 GCT Semiconductor, Inc. LU150 LTE Modem [Yota LU150]
  Bus 002 Device 005: ID 148f:5370 Ralink Technology, Corp. RT5370 Wireless Adapter
  Bus 002 Device 004: ID 192f:0916 Avago Technologies, Pte. 
  Bus 002 Device 003: ID 1c4f:0002 SiGma Micro Keyboard TRACER Gamma Ivory
  Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
  Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
  Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  dmesg on 15.10:
  [ 2849.691015] usb 2-1.6: new high-speed USB device number 11 using ehci-pci
  [ 2849.783810] usb 2-1.6: New USB device found, idVendor=1076, idProduct=8002
  [ 2849.783815] usb 2-1.6: New USB device strings: Mfr=1, Product=2, SerialNumber=0
  [ 2849.783818] usb 2-1.6: Product: Modem Yota
  [ 2849.783820] usb 2-1.6: Manufacturer: GCT SEMICONDUCTOR Inc
  [ 2849.784907] rndis_host 2-1.6:1.0: dev can't take 1558 byte packets (max 1458), adjusting MTU to 1400
  [ 2849.785881] rndis_host 2-1.6:1.0 eth1: register 'rndis_host' at usb-0000:00:1d.0-1.6, RNDIS device, 00:09:3b:f0:1a:40

  lsusb on 16.04 freezes, ^C does not kill it.
  dmesg on 16.04:
  [   50.355199] usb 2-1.6: new high-speed USB device number 6 using ehci-pci
  [   50.447992] usb 2-1.6: New USB device found, idVendor=1076, idProduct=8001
  [   50.447997] usb 2-1.6: New USB device strings: Mfr=1, Product=2, SerialNumber=0
  [   50.448000] usb 2-1.6: Product: Modem Yota
  [   50.448002] usb 2-1.6: Manufacturer: GCT SEMICONDUCTOR Inc
  [   50.448229] usb-storage 2-1.6:1.0: USB Mass Storage device detected
  [   50.448634] scsi host5: usb-storage 2-1.6:1.0
  [   51.447979] scsi 5:0:0:0: CD-ROM            GDM Mass                       PQ: 0 ANSI: 0 CCS
  [   51.472471] sr 5:0:0:0: [sr0] scsi3-mmc drive: 0x/0x caddy
  [   51.472475] cdrom: Uniform CD-ROM driver Revision: 3.20
  [   51.472662] sr 5:0:0:0: Attached scsi CD-ROM sr0
  [   51.472752] sr 5:0:0:0: Attached scsi generic sg2 type 5
  [   52.460550] usb 2-1.6: USB disconnect, device number 6
  [   52.460999] cdrom: issuing MRW background format suspend
  [   53.427117] usb 2-1.6: new high-speed USB device number 7 using ehci-pci
  [   53.519890] usb 2-1.6: New USB device found, idVendor=1076, idProduct=8002
  [   53.519895] usb 2-1.6: New USB device strings: Mfr=1, Product=2, SerialNumber=0
  [   53.519898] usb 2-1.6: Product: Modem Yota
  [   53.519900] usb 2-1.6: Manufacturer: GCT SEMICONDUCTOR Inc
  [   53.545260] usbcore: registered new interface driver cdc_ether
  [   53.552769] BUG: unable to handle kernel NULL pointer dereference at 0000000000000003
  [   53.552805] IP: [<ffffffffc05152a1>] usbnet_generic_cdc_bind+0x171/0x710 [cdc_ether]
  [   53.552834] PGD 0 
  [   53.552843] Oops: 0000 [#1] SMP 
  [   53.552858] Modules linked in: rndis_host(+) cdc_ether usbnet mii zram lz4_compress intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm snd_hda_codec_via snd_hda_codec_generic snd_hda_codec_hdmi snd_hda_intel snd_hda_codec irqbypass ppdev snd_seq_midi crct10dif_pclmul snd_hda_core crc32_pclmul snd_seq_midi_event snd_hwdep snd_pcm aesni_intel snd_rawmidi joydev input_leds aes_x86_64 snd_seq lrw gf128mul snd_seq_device parport_pc glue_helper parport snd_timer shpchp ablk_helper ie31200_edac snd cryptd mac_hid serio_raw mei_me edac_core 8250_fintek soundcore mei lpc_ich intel_smartconnect autofs4 squashfs overlay nls_utf8 isofs dm_mirror dm_region_hash dm_log amdkfd amd_iommu_v2 hid_generic radeon i2c_algo_bit psmouse ttm drm_kms_helper syscopyarea sysfillrect pata_acpi sysimgblt
  [   53.553175]  fb_sys_fops usbhid uas hid drm usb_storage atl1c video fjes
  [   53.553208] CPU: 2 PID: 3092 Comm: systemd-udevd Not tainted 4.4.0-21-generic #37-Ubuntu
  [   53.553235] Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./H61M-VS, BIOS P2.70 09/10/2012
  [   53.553267] task: ffff8800c03b6040 ti: ffff8800be168000 task.ti: ffff8800be168000
  [   53.553292] RIP: 0010:[<ffffffffc05152a1>]  [<ffffffffc05152a1>] usbnet_generic_cdc_bind+0x171/0x710 [cdc_ether]
  [   53.553328] RSP: 0018:ffff8800be16b960  EFLAGS: 00010286
  [   53.553346] RAX: 0000000000000000 RBX: ffff8800d96a3840 RCX: 0000000000000000
  [   53.553369] RDX: 0000000000000000 RSI: ffff8800d582ec00 RDI: ffff8800d99d6800
  [   53.553393] RBP: ffff8800be16ba20 R08: ffff8800d82f0112 R09: ffff88011a001400
  [   53.553416] R10: ffff8800be2e4800 R11: 0000000000003ae9 R12: ffff8800d582ec00
  [   53.553440] R13: 0000000000000001 R14: ffffffffc05c1068 R15: ffff8800d96a3938
  [   53.553464] FS:  00007fc9f00088c0(0000) GS:ffff88011ed00000(0000) knlGS:0000000000000000
  [   53.553490] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  [   53.553509] CR2: 0000000000000003 CR3: 000000011581b000 CR4: 00000000001406e0
  [   53.553533] Stack:
  [   53.553541]  0000000000000000 0000000000000001 ffff8800d96a32a0 0000000000000000
  [   53.553569]  0000000000000000 ffff8800d82f0112 ffff8800d82f011b 0000000000000000
  [   53.553598]  0000000000000000 0000000000000000 0000000000000000 0000000000000000
  [   53.553627] Call Trace:
  [   53.553639]  [<ffffffffc05bf8d2>] generic_rndis_bind+0x62/0x500 [rndis_host]
  [   53.553666]  [<ffffffff8171bcd3>] ? alloc_netdev_mqs+0x303/0x440
  [   53.553687]  [<ffffffffc05bfd83>] rndis_bind+0x13/0x20 [rndis_host]
  [   53.553710]  [<ffffffffc04fd3e0>] usbnet_probe+0x320/0x8c0 [usbnet]
  [   53.553733]  [<ffffffff816154fd>] usb_probe_interface+0x1bd/0x300
  [   53.553755]  [<ffffffff8154bd12>] driver_probe_device+0x222/0x4a0
  [   53.553776]  [<ffffffff8154c014>] __driver_attach+0x84/0x90
  [   53.553795]  [<ffffffff8154bf90>] ? driver_probe_device+0x4a0/0x4a0
  [   53.553817]  [<ffffffff8154993c>] bus_for_each_dev+0x6c/0xc0
  [   53.553837]  [<ffffffff8154b4ce>] driver_attach+0x1e/0x20
  [   53.553857]  [<ffffffff8154b00b>] bus_add_driver+0x1eb/0x280
  [   53.553876]  [<ffffffff8154c920>] driver_register+0x60/0xe0
  [   53.553896]  [<ffffffff81613e44>] usb_register_driver+0x84/0x140
  [   53.553917]  [<ffffffffc05c4000>] ? 0xffffffffc05c4000
  [   53.553936]  [<ffffffffc05c401e>] rndis_driver_init+0x1e/0x1000 [rndis_host]
  [   53.553961]  [<ffffffff81002123>] do_one_initcall+0xb3/0x200
  [   53.553982]  [<ffffffff811eaeb3>] ? kmem_cache_alloc_trace+0x183/0x1f0
  [   53.554007]  [<ffffffff8118c163>] do_init_module+0x5f/0x1cf
  [   53.554027]  [<ffffffff81109df7>] load_module+0x1667/0x1c00
  [   53.554046]  [<ffffffff811063a0>] ? __symbol_put+0x60/0x60
  [   53.554067]  [<ffffffff812126b0>] ? kernel_read+0x50/0x80
  [   53.554086]  [<ffffffff8110a5d4>] SYSC_finit_module+0xb4/0xe0
  [   53.554106]  [<ffffffff8110a61e>] SyS_finit_module+0xe/0x10
  [   53.554127]  [<ffffffff818244f2>] entry_SYSCALL_64_fastpath+0x16/0x71
  [   53.554148] Code: ff 48 8b 95 60 ff ff ff 48 8b 85 58 ff ff ff 48 8b 3b 48 89 93 f8 00 00 00 48 8b 55 88 48 89 83 00 01 00 00 48 89 93 08 01 00 00 <0f> b6 70 03 e8 76 dc 0e c1 48 89 83 10 01 00 00 48 8b 83 00 01 
  [   53.554288] RIP  [<ffffffffc05152a1>] usbnet_generic_cdc_bind+0x171/0x710 [cdc_ether]
  [   53.554316]  RSP <ffff8800be16b960>
  [   53.554328] CR2: 0000000000000003
  [   53.559718] ---[ end trace 03724a5632380ce0 ]---

  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: bash 4.3-14ubuntu1
  ProcVersionSignature: Ubuntu 4.2.0-36.42-generic 4.2.8-ckt8
  Uname: Linux 4.2.0-36-generic i686
  ApportVersion: 2.19.1-0ubuntu5
  Architecture: i386
  CurrentDesktop: LXDE
  Date: Sun Jun 12 12:15:26 2016
  ExecutablePath: /bin/bash
  InstallationDate: Installed on 2014-11-03 (586 days ago)
  InstallationMedia: Lubuntu 14.04.1 LTS "Trusty Tahr" - Release i386 (20140722.2)
  SourcePackage: bash
  UpgradeStatus: Upgraded to wily on 2015-10-27 (228 days ago)

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