Re: qmi wwan interface does not work in this version 3.5.rc7.next.20120720

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Am Sonntag, 22. Juli 2012, 08:54:32 schrieben Sie:

> "Thomas Schäfer" <tschaefer@xxxxxxxxxxx> wrote:
> >with
> >
> >http://download.opensuse.org/repositories/Kernel:/linux-
> >next/standard/x86_64/kernel-vanilla-3.5.rc7.next.20120720-1.1.x86_64.rpm
> >
> >No one of my sticks works in qmi/wwan mode anymore. The modules seems
> >to be
> >loaded, option and qmi_wwan, but the dial-in-skripts do nothing.
> >While removing the stick, the system crashes.
> 
> Do you have more details about this crash? netconsole is very useful if
> you can connect by ethernet to another pc.

(That is a good idea)

This happens with the Huawei E398 (supported since 3.4)


dmesg 
[  133.764128] usb 1-4: new high-speed USB device number 3 using ehci_hcd
[  133.899087] usb 1-4: New USB device found, idVendor=12d1, idProduct=1505
[  133.899102] usb 1-4: New USB device strings: Mfr=3, Product=2, SerialNumber=0
[  133.899111] usb 1-4: Product: HUAWEI Mobile
[  133.899120] usb 1-4: Manufacturer: Huawei Technologies
[  133.959452] usbcore: registered new interface driver uas
[  133.969406] Initializing USB Mass Storage driver...
[  133.970572] scsi4 : usb-storage 1-4:1.0
[  133.970960] usbcore: registered new interface driver usb-storage
[  133.970967] USB Mass Storage support registered.
[  134.716146] usb 1-4: USB disconnect, device number 3
[  144.604138] usb 1-4: new high-speed USB device number 4 using ehci_hcd
[  144.739362] usb 1-4: New USB device found, idVendor=12d1, idProduct=1506
[  144.739377] usb 1-4: New USB device strings: Mfr=4, Product=3, SerialNumber=0
[  144.739387] usb 1-4: Product: HUAWEI Mobile
[  144.739395] usb 1-4: Manufacturer: Huawei Technologies
[  144.744396] scsi5 : usb-storage 1-4:1.5
[  144.745587] scsi6 : usb-storage 1-4:1.6
[  144.800200] usbcore: registered new interface driver usbserial
[  144.800264] usbcore: registered new interface driver usbserial_generic
[  144.800309] USB Serial support registered for generic
[  144.800325] usbserial: USB Serial Driver core
[  144.812227] usbcore: registered new interface driver cdc_wdm
[  144.816522] usbcore: registered new interface driver option
[  144.816580] USB Serial support registered for GSM modem (1-port)
[  144.816821] option 1-4:1.0: GSM modem (1-port) converter detected
[  144.817153] usb 1-4: GSM modem (1-port) converter now attached to ttyUSB0
[  144.817223] option 1-4:1.1: GSM modem (1-port) converter detected
[  144.822070] usb 1-4: GSM modem (1-port) converter now attached to ttyUSB1
[  144.822163] option 1-4:1.2: GSM modem (1-port) converter detected
[  144.822628] usb 1-4: GSM modem (1-port) converter now attached to ttyUSB2
[  144.843517] qmi_wwan 1-4:1.3: cdc-wdm0: USB WDM device
[  144.844156] qmi_wwan 1-4:1.3: wwan0: register 'qmi_wwan' at usb-0000:00:1d.7-4, WWAN/QMI device, 00:a0:c6:00:00:00
[  144.844266] usbcore: registered new interface driver qmi_wwan
[  145.745563] scsi 5:0:0:0: CD-ROM            HUAWEI   Mass Storage     2.31 PQ: 0 ANSI: 0
[  145.746478] scsi 5:0:0:0: Attached scsi generic sg1 type 5
[  145.749398] scsi 6:0:0:0: Direct-Access     HUAWEI   SD Storage       2.31 PQ: 0 ANSI: 2
[  145.750483] sd 6:0:0:0: Attached scsi generic sg2 type 0
[  145.751473] sd 6:0:0:0: [sdb] 31116288 512-byte logical blocks: (15.9 GB/14.8 GiB)
[  145.752841] sd 6:0:0:0: [sdb] Write Protect is off
[  145.752862] sd 6:0:0:0: [sdb] Mode Sense: 0f 0e 00 00
[  145.753848] sd 6:0:0:0: [sdb] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[  145.762461]  sdb: sdb1
[  145.766371] sd 6:0:0:0: [sdb] Attached SCSI removable disk
[  145.787558] sr0: scsi-1 drive
[  145.787572] cdrom: Uniform CD-ROM driver Revision: 3.20
[  145.789625] sr 5:0:0:0: Attached scsi CD-ROM sr0
[  243.145559] usb 1-4: USB disconnect, device number 4
[  243.147961] option1 ttyUSB0: option_instat_callback: error -108
[  243.148375] option1 ttyUSB0: GSM modem (1-port) converter now disconnected from ttyUSB0
[  243.148471] BUG: unable to handle kernel NULL pointer dereference at           (null)
[  243.148508] IP: [<ffffffffa0468527>] stop_read_write_urbs+0x37/0x80 [usb_wwan]
[  243.148556] PGD 79d60067 PUD 79d61067 PMD 0 
[  243.148590] Oops: 0000 [#1] SMP 
[  243.148617] Modules linked in: sr_mod cdrom qmi_wwan usbnet option cdc_wdm usb_wwan usbserial usb_storage uas fuse af_packet ip6table_filter ip6_tables iptable_filter ip_tables x_tables tun edd 
cpufreq_conservative cpufreq_userspace cpufreq_powersave snd_pcm_oss snd_mixer_oss acpi_cpufreq snd_seq mperf snd_seq_device coretemp arc4 sg hp_wmi sparse_keymap uvcvideo videobuf2_core 
videodev videobuf2_vmalloc videobuf2_memops rtl8192ce rtl8192c_common rtlwifi joydev pcspkr microcode mac80211 i2c_i801 lpc_ich r8169 snd_hda_codec_idt cfg80211 snd_hda_intel snd_hda_codec rfkill 
snd_hwdep snd_pcm wmi snd_timer ac snd soundcore snd_page_alloc battery uhci_hcd i915 drm_kms_helper drm i2c_algo_bit ehci_hcd thermal usbcore video usb_common button processor thermal_sys
[  243.149007] CPU 1 
[  243.149027] Pid: 135, comm: khubd Not tainted 3.5.0-rc7-next-20120720-1-vanilla #1 Hewlett-Packard HP Mini 110-3700                /1584
[  243.149072] RIP: 0010:[<ffffffffa0468527>]  [<ffffffffa0468527>] stop_read_write_urbs+0x37/0x80 [usb_wwan]
[  243.149118] RSP: 0018:ffff880037e75b30  EFLAGS: 00010286
[  243.149133] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff88005912aa28
[  243.149150] RDX: ffff88005e95f028 RSI: 0000000000000000 RDI: ffff88005f7c1a10
[  243.149166] RBP: ffff880037e75b60 R08: 0000000000000000 R09: ffffffff812cea90
[  243.149182] R10: 0000000000000000 R11: 0000000000000001 R12: ffff88006539b440
[  243.149198] R13: ffff88006539b440 R14: 0000000000000000 R15: 0000000000000000
[  243.149216] FS:  0000000000000000(0000) GS:ffff88007ee80000(0000) knlGS:0000000000000000
[  243.149233] CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[  243.149248] CR2: 0000000000000000 CR3: 0000000079fe0000 CR4: 00000000000007e0
[  243.149264] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  243.149280] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[  243.149298] Process khubd (pid: 135, threadinfo ffff880037e74000, task ffff880037d40600)
[  243.149313] Stack:
[  243.149323]  ffff880037e75b40 ffff88006539b440 ffff8800799bc830 ffff88005f7c1800
[  243.149348]  0000000000000001 ffff88006539b448 ffff880037e75b70 ffffffffa04685e9
[  243.149371]  ffff880037e75bc0 ffffffffa0473765 ffff880037354988 ffff88007b594800
[  243.149395] Call Trace:
[  243.149419]  [<ffffffffa04685e9>] usb_wwan_disconnect+0x9/0x10 [usb_wwan]
[  243.149447]  [<ffffffffa0473765>] usb_serial_disconnect+0xd5/0x120 [usbserial]
[  243.149511]  [<ffffffffa0046b48>] usb_unbind_interface+0x58/0x1a0 [usbcore]
[  243.149545]  [<ffffffff8139ebd7>] __device_release_driver+0x77/0xe0
[  243.149567]  [<ffffffff8139ec67>] device_release_driver+0x27/0x40
[  243.149587]  [<ffffffff8139e5cf>] bus_remove_device+0xdf/0x150
[  243.149608]  [<ffffffff8139bc78>] device_del+0x118/0x1a0
[  243.149661]  [<ffffffffa0044590>] usb_disable_device+0xb0/0x280 [usbcore]
[  243.149718]  [<ffffffffa003c6fd>] usb_disconnect+0x9d/0x140 [usbcore]
[  243.149770]  [<ffffffffa003da7d>] hub_port_connect_change+0xad/0x8a0 [usbcore]
[  243.149825]  [<ffffffffa0043bf5>] ? usb_control_msg+0xe5/0x110 [usbcore]
[  243.149878]  [<ffffffffa003e6e3>] hub_events+0x473/0x760 [usbcore]
[  243.149931]  [<ffffffffa003ea05>] hub_thread+0x35/0x1d0 [usbcore]
[  243.149955]  [<ffffffff81061960>] ? add_wait_queue+0x60/0x60
[  243.150004]  [<ffffffffa003e9d0>] ? hub_events+0x760/0x760 [usbcore]
[  243.150026]  [<ffffffff8106133e>] kthread+0x8e/0xa0
[  243.150047]  [<ffffffff8157ec04>] kernel_thread_helper+0x4/0x10
[  243.150068]  [<ffffffff810612b0>] ? flush_kthread_work+0x120/0x120
[  243.150088]  [<ffffffff8157ec00>] ? gs_change+0xb/0xb
[  243.150101] Code: fd 41 54 53 48 83 ec 08 80 7f 1a 00 74 57 49 89 fc 31 db 90 49 8b 7c 24 20 45 31 f6 48 81 c7 10 02 00 00 e8 bc 64 f3 e0 49 89 c7 <4b> 8b 3c 37 49 83 c6 08 e8 4c a5 bd ff 49 83 fe 20 
75 ed 45 30 
[  243.150257] RIP  [<ffffffffa0468527>] stop_read_write_urbs+0x37/0x80 [usb_wwan]
[  243.150282]  RSP <ffff880037e75b30>
[  243.150294] CR2: 0000000000000000
[  243.177170] ---[ end trace fba433d9015ffb8c ]---




This results in a black screen . After a while the X11/Desktop comes back.


> 
> >May be it is a merge problem of the different trees, or some thing
> >went
> >wrong.
> 
> Something must definitely have gone wrong. I am on vacation with no
> real keyboard, like always when this happens...

Don't panic. Here is Sunday too.


> Could I ask you to collect
> as much information as possible until I have a chance to look at it? A
> git bisect session would be very useful. At least we need to know what
> the latest working version you have tested is.

With 3.5rc6 + the patches for the ZTE MF821D, 
all three LTE-devices (Huawei 398, Vodafone K5005, ZTE MF821D) worked.

This was at 12.July 2012. (compiled by me)


After the confirmations about the applied patches for the ZTE MF821D 
qmi_wwan by davem net-next and option by  gregkh
 I thought, this could be the right time to try a kernel the easy way - from a repository of my distribution.

Here are the infos about the kernel:


rpm -qi kernel-vanilla
Name        : kernel-vanilla                                                                
Version     : 3.5.rc7.next.20120720
Release     : 1.1                                                                               
Architecture: x86_64
Install Date: So 22 Jul 2012 00:21:19 CEST                                                                        
Group       : System/Kernel                                                                                       
Size        : 149684229                                                                                           
License     : GPL-2.0                                                                                             
Signature   : DSA/SHA1, Sa 21 Jul 2012 08:17:28 CEST, Key ID dcbb9d72a29f6635                                     
Source RPM  : kernel-vanilla-3.5.rc7.next.20120720-1.1.nosrc.rpm                                                  
Build Date  : Sa 21 Jul 2012 08:13:31 CEST                                                                        
Build Host  : build09                                                                                             
Relocations : (not relocatable)
Vendor      : obs://build.opensuse.org/Kernel                                                                            
URL         : http://www.kernel.org/                                                                                     
Summary     : The Standard Kernel - without any SUSE patches                                                             
Description :
The standard kernel - without any SUSE patches                                                                              


Source Timestamp: 2012-07-20 08:02:11 +0200
GIT Revision: 41e65a27f08db17978346a46c8fda9bcfd1ee0cc                                                                         
GIT Branch: linux-next
Distribution: Kernel:linux-next




Regards,
Thomas




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