kernel-packages team mailing list archive

[Marko Hrastovec <1453028@xxxxxxxxxxxxxxxxxx>]

I am trying to connect ad business. I now know that there are some Cisco
Access Points. I tried it at home yesterday and the error is not present
there. Well, sometimes it takes some time to start to occur, but then it
occurs regularly.

After extensive tests with different kernels I am more and more
convinced that kernel is not to blame. It has happened much more often
with some kernels, so I concluded that kernel is the reason. As I am
looking into WIFI driver source some things are strange to me there. I
didn't have time to experiment with the driver yet and I will ASAP. I
will definitely explore drivers's power management and why driver is
repeatedly going into adapter power off and then power on. Unfortunately
the driver is poor with comments and I can only guess what developers
were thinking, but going into power off only because power state was
checked four times does not seem logical.

Until I investigate and try to fix the driver, do with this bug report
whatever you have to do. I am sorry for possible false alarm.

-- 
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https://bugs.launchpad.net/bugs/1453028

Title:
  Kernel drops connection with rtl8192cu fixed driver

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  I have experienced a strange error a month ago when Ubuntu 14.10
  upgraded the linux kernel. rtl8192cu fixed driver stopped working. The
  error is mentioned here:
  http://askubuntu.com/questions/546195/ubuntu-14-10-rtl8192cu-
  bug/609057#609057

  The kernel 3.16.0-33-generic (maybe also some older) had this error
  and an update from 3.16.0-33-generic to 3.16.0-34-generic fixed the
  issue.

  Identical issue popped up again with a kernel update in Ubuntu 15.04
  from 3.19.0-15 to 3.19.0-16. Obviously the patches applied in
  3.16.0-34-generic shall be applied to 3.19.0-16-generic again.

  The following lines appear in the syslog all the time and the wireless
  connection is not working:

  May  8 08:01:20 computer NetworkManager[969]: <info> (wlan4): supplicant interface state: associating -> disconnected
  May  8 08:01:20 computer NetworkManager[969]: <info> (wlan4): supplicant interface state: disconnected -> scanning
  May  8 08:01:21 computer kernel: [70436.589191] survey done event(1c) band:0 for wlan4
  May  8 08:01:24 computer kernel: [70439.508489] ==>rtw_ps_processor .fw_state(8)
  May  8 08:01:24 computer kernel: [70439.508494] ==>ips_enter cnts:952
  May  8 08:01:24 computer kernel: [70439.508496] ===> rtw_ips_pwr_down...................
  May  8 08:01:24 computer kernel: [70439.508959] ====> rtw_ips_dev_unload...
  May  8 08:01:24 computer kernel: [70439.532197] usb_read_port_cancel
  May  8 08:01:24 computer kernel: [70439.532398] usb_read_port_complete()-1284: RX Warning! bDriverStopped(0) OR bSurpriseRemoved(0) bReadPortCancel(1)
  May  8 08:01:24 computer kernel: [70439.532669] usb_read_port_complete()-1284: RX Warning! bDriverStopped(0) OR bSurpriseRemoved(0) bReadPortCancel(1)
  May  8 08:01:24 computer kernel: [70439.532898] usb_read_port_complete()-1284: RX Warning! bDriverStopped(0) OR bSurpriseRemoved(0) bReadPortCancel(1)
  May  8 08:01:24 computer kernel: [70439.533149] usb_read_port_complete()-1284: RX Warning! bDriverStopped(0) OR bSurpriseRemoved(0) bReadPortCancel(1)
  May  8 08:01:24 computer kernel: [70439.533207] usb_write_port_cancel
  May  8 08:01:24 computer kernel: [70439.533222] ==> rtl8192cu_hal_deinit
  May  8 08:01:24 computer kernel: [70439.533224] bkeepfwalive(0)
  May  8 08:01:24 computer kernel: [70439.533225] card disble without HWSM...........
  May  8 08:01:24 computer kernel: [70439.538277] <=== rtw_ips_pwr_down..................... in 28ms
  May  8 08:01:26 computer kernel: [70441.592759] _rtw_pwr_wakeup call ips_leave....
  May  8 08:01:26 computer kernel: [70441.592765] ==>ips_leave cnts:952
  May  8 08:01:26 computer kernel: [70441.592766] ===>  rtw_ips_pwr_up..............
  May  8 08:01:26 computer kernel: [70441.592770] ===> ips_netdrv_open.........
  May  8 08:01:26 computer kernel: [70441.597595]  ===> FirmwareDownload91C() fw:Rtl819XFwImageArray_TSMC
  May  8 08:01:26 computer kernel: [70441.597599] FirmwareDownload92C accquire FW from embedded image
  May  8 08:01:26 computer kernel: [70441.597602] fw_ver=v88, fw_subver=2, sig=0x88c0
  May  8 08:01:26 computer kernel: [70441.622978] fw download ok!
  May  8 08:01:26 computer kernel: [70441.622981] Set RF Chip ID to RF_6052 and RF type to 2.
  May  8 08:01:27 computer kernel: [70442.002524] IQK:Start!!!
  May  8 08:01:27 computer kernel: [70442.014279] Path A IQK Success!!
  May  8 08:01:27 computer kernel: [70442.019030] Path B IQK Success!!
  May  8 08:01:27 computer kernel: [70442.027535] Path A IQK Success!!
  May  8 08:01:27 computer kernel: [70442.032330] Path B IQK Success!!
  May  8 08:01:27 computer kernel: [70442.044917] Path A IQK Success!!
  May  8 08:01:27 computer kernel: [70442.049671] Path B IQK Success!!
  May  8 08:01:27 computer kernel: [70442.054424] IQK: final_candidate is 1
  May  8 08:01:27 computer kernel: [70442.054428] IQK: RegE94=100 RegE9C=3f9 RegEA4=fc RegEAC=3ff RegEB4=101 RegEBC=8 RegEC4=fe RegECC=1
  May  8 08:01:27 computer kernel: [70442.054428]  Path A IQ Calibration Success !
  May  8 08:01:27 computer kernel: [70442.056546] Path B IQ Calibration Success !
  May  8 08:01:27 computer kernel: [70442.169850] pdmpriv->TxPowerTrackControl = 1
  May  8 08:01:27 computer kernel: [70442.174477] rtl8192cu_hal_init in 584ms
  May  8 08:01:27 computer kernel: [70442.187114] <===  rtw_ips_pwr_up.............. in 596ms
  May  8 08:01:27 computer kernel: [70442.187233] ==> ips_leave.....LED(0x00028080)...
  May  8 08:01:28 computer kernel: [70443.496206] survey done event(1e) band:0 for wlan4
  May  8 08:01:29 computer kernel: [70444.190567] ==>rtw_ps_processor .fw_state(8)
  May  8 08:01:29 computer kernel: [70444.190572] ==>ips_enter cnts:953
  May  8 08:01:29 computer kernel: [70444.190574] ===> rtw_ips_pwr_down...................
  May  8 08:01:29 computer kernel: [70444.190825] ====> rtw_ips_dev_unload...
  May  8 08:01:29 computer kernel: [70444.214200] usb_read_port_cancel
  May  8 08:01:29 computer kernel: [70444.214400] usb_read_port_complete()-1284: RX Warning! bDriverStopped(0) OR bSurpriseRemoved(0) bReadPortCancel(1)
  May  8 08:01:29 computer kernel: [70444.214650] usb_read_port_complete()-1284: RX Warning! bDriverStopped(0) OR bSurpriseRemoved(0) bReadPortCancel(1)
  May  8 08:01:29 computer kernel: [70444.214901] usb_read_port_complete()-1284: RX Warning! bDriverStopped(0) OR bSurpriseRemoved(0) bReadPortCancel(1)
  May  8 08:01:29 computer kernel: [70444.215150] usb_read_port_complete()-1284: RX Warning! bDriverStopped(0) OR bSurpriseRemoved(0) bReadPortCancel(1)
  May  8 08:01:29 computer kernel: [70444.215194] usb_write_port_cancel
  --- 
  ApportVersion: 2.17.2-0ubuntu1
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  markoh     2199 F.... pulseaudio
   /dev/snd/controlC0:  markoh     2199 F.... pulseaudio
  CurrentDesktop: GNOME
  DistroRelease: Ubuntu 15.04
  EcryptfsInUse: Yes
  HibernationDevice: RESUME=UUID=b3f4c3e3-52b4-4b7a-bb72-2f1d04fbbcca
  InstallationDate: Installed on 2013-04-12 (755 days ago)
  InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
  MachineType: Hewlett-Packard HP Compaq 8200 Elite SFF PC
  Package: linux (not installed)
  ProcFB:
   0 nouveaufb
   1 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-16-generic root=UUID=94938447-8a12-42d6-8ba3-9ba5b20d585d ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.19.0-16.16-generic 3.19.3
  RelatedPackageVersions:
   linux-restricted-modules-3.19.0-16-generic N/A
   linux-backports-modules-3.19.0-16-generic  N/A
   linux-firmware                             1.143
  RfKill:
   
  Tags:  vivid
  Uname: Linux 3.19.0-16-generic x86_64
  UpgradeStatus: Upgraded to vivid on 2015-04-17 (21 days ago)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo vboxusers wireshark
  _MarkForUpload: True
  dmi.bios.date: 11/10/2011
  dmi.bios.vendor: Hewlett-Packard
  dmi.bios.version: J01 v02.15
  dmi.board.asset.tag: CZC204270Y
  dmi.board.name: 1495
  dmi.board.vendor: Hewlett-Packard
  dmi.chassis.asset.tag: CZC204270Y
  dmi.chassis.type: 6
  dmi.chassis.vendor: Hewlett-Packard
  dmi.modalias: dmi:bvnHewlett-Packard:bvrJ01v02.15:bd11/10/2011:svnHewlett-Packard:pnHPCompaq8200EliteSFFPC:pvr:rvnHewlett-Packard:rn1495:rvr:cvnHewlett-Packard:ct6:cvr:
  dmi.product.name: HP Compaq 8200 Elite SFF PC
  dmi.sys.vendor: Hewlett-Packard

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