[Desktop-packages] [Bug 1408963] Re: [Xbuntu 14.04, 14.10 and 15.04] Network manager stops working: iwl3945 0000:03:00.0: BSM uCode verification failed at addr ...; wlan0: deauthenticating from... by

2017-10-09 Thread Gabor Simon 
The same here, "Error sending C_SCAN: enqueue_hcmd failed" and "BSM
uCode verification failed at addr" and all the other niceties, for this
good ol' piece of hw that have been working flawlessly under other OSes,
so it's definitely a sw issue.

I don't really hope for getting a solution, but anyway, won't hurt to
mention.

Additionally, if you let me comment on the issue policy here:

* this bug has been reported more than 2.5 years ago
* it affects several Ubuntu versions
* it affects a lot of users (more than 54, just not everybody registers for 
adding a 'meetoo')
* it makes the OS virtually unusable (i know, still can ping localhost, hooray)
* nobody has taken any steps to solve it, *not even asking a fine question*
* the ticket hasn't even been assigned to anyone
* and its importance is still 'LOW'

That last word 'LOW', my dear Sirs, is the exact quality of the support
here, not because of the lack of success solving the problem, but
because not even being interested in trying to.

Since this OS is free, I got exactly the worth for my money, so I don't 
complain,
but whenever I'll happen to need *paid* support for some company IT business, 
hell sure that it won't be Canonical whom I'll contact in the first 100 place.

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Title:
  [Xbuntu 14.04, 14.10 and 15.04] Network manager stops working: iwl3945
  :03:00.0: BSM uCode verification failed at addr ...; wlan0:
  deauthenticating from... by local choice (Reason: 3=DEAUTH_LEAVING),

Status in network-manager package in Ubuntu:
  Confirmed

Bug description:
  From time to time, the system loses all wireles networks and kubuntu
  network manager applet goes blank - not even one network is shown. All
  wifi connections are broken. Rebooting fixes the issue, switching to
  WICD on-the-fly enables to continue browsing without rebooting, so it
  seems to be no hardware issue or iwl3945 issue.

  What to expect: stable connections and flawless network managing.
  What happens: so above.

  Further informations about the system, the network configuration, the
  package version can be found in the attachment, also parts of rsyslog
  and dmesg.

  Interesting, according to some helpers, are the following lines:
  dmesg:   wlan0: deauthenticating from 02:26:4d:ac:8f:45 by local choice 
(Reason: 3=DEAUTH_LEAVING)

  lsb_release -a
  No LSB modules are available.
  Distributor ID: Ubuntu
  Description:Ubuntu 14.10
  Release:14.10
  Codename:   utopic

  apt-cache policy network-manager
  network-manager:
    Installiert:   0.9.8.8-0ubuntu28
    Installationskandidat: 0.9.8.8-0ubuntu28
    Versionstabelle:
   *** 0.9.8.8-0ubuntu28 0
  500 http://de.archive.ubuntu.com/ubuntu/ utopic/main amd64 Packages
  100 /var/lib/dpkg/status

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[Desktop-packages] [Bug 1408963] Re: [Xbuntu 14.04, 14.10 and 15.04] Network manager stops working: iwl3945 0000:03:00.0: BSM uCode verification failed at addr ...; wlan0: deauthenticating from... by

2017-10-10 Thread Gabor Simon 
Thanks for the kernel bugzilla link, Dik, its power-save saving
suspicion seems valid, at least now I had a full day of uptime without
this wifi failure.

So, for anyone else who also wants to give it a try:

1. If you are using NetworkManager, then check
'/etc/NetworkManager/conf.d/default-wifi-powersave-on.conf', and try
setting 'wifi.powersave = 0'

2. If you aren't using NetworkManager, then you may add an udev rule for 
turning it off:
Add this to '/etc/udev/rules.d/90-iwl3945-quirk.rules':
# disable power saving, as per https://bugzilla.kernel.org/show_bug.cgi?id=93041
ACTION=="add", SUBSYSTEM=="net", ENV{DEVTYPE}=="wlan", 
ENV{ID_NET_DRIVER}=="iwl3945", RUN+="/sbin/iw dev %E{INTERFACE} set power_save 
off"

NOTE: the '90-...' is important, as it must be evaluated after
'80-drivers.rules' (I think).

3. You may set it manually via 'iw dev  set power_save off', but it will 
last only
until something overrides it, or until reboot.


I collected some dmesg stack traces, this was the most relevant one (the rest 
came from generic ieee80211 code).

[ 7729.780167] [ cut here ]
[ 7729.780189] WARNING: CPU: 1 PID: 4563 at 
/build/linux-CQR1pk/linux-4.10.0/drivers/net/wireless/intel/iwlegacy/common.c:3178
 il_enqueue_hcmd+0x35c/0x3d0 [iwlegacy]
[ 7729.780191] Modules linked in: uas usb_storage ccm pcmcia coretemp kvm_intel 
kvm input_leds joydev arc4 irqbypass iwl3945 iwlegacy serio_raw mac80211 
yenta_socket snd_hda_codec_conexant snd_hda_codec_generic pcmcia_rsrc lpc_ich 
pcmcia_core snd_hda_intel cfg80211 snd_hda_codec snd_hda_core snd_hwdep snd_pcm 
snd_timer snd soundcore shpchp toshiba_acpi sparse_keymap industrialio wmi 
mac_hid parport_pc ppdev lp parport ip_tables x_tables autofs4 raid10 raid456 
async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq 
libcrc32c raid1 raid0 multipath linear hid_generic i915 8139too usbhid 
i2c_algo_bit psmouse drm_kms_helper syscopyarea 8139cp sysfillrect sysimgblt 
pata_acpi fb_sys_fops mii drm hid fjes video
[ 7729.780260] CPU: 1 PID: 4563 Comm: kworker/u4:1 Tainted: GW   
4.10.0-19-generic #21-Ubuntu
[ 7729.780261] Hardware name: TOSHIBA SATELLITE L100/SATELLITE L100, BIOS V3.00 
   12/25/2008
[ 7729.780307] Workqueue: phy0 ieee80211_scan_work [mac80211]
[ 7729.780309] Call Trace:
[ 7729.780318]  dump_stack+0x58/0x73
[ 7729.780321]  __warn+0xea/0x110
[ 7729.780330]  ? il_enqueue_hcmd+0x35c/0x3d0 [iwlegacy]
[ 7729.780332]  warn_slowpath_null+0x2a/0x30
[ 7729.780340]  il_enqueue_hcmd+0x35c/0x3d0 [iwlegacy]
[ 7729.780344]  ? default_send_IPI_single+0x2c/0x30
[ 7729.780347]  ? native_smp_send_reschedule+0x1f/0x40
[ 7729.780354]  il_send_cmd_sync+0x40/0x340 [iwlegacy]
[ 7729.780360]  il3945_request_scan+0x3e6/0x5a0 [iwl3945]
[ 7729.780368]  il_mac_hw_scan+0x108/0x180 [iwlegacy]
[ 7729.780400]  __ieee80211_start_scan+0x22d/0x6a0 [mac80211]
[ 7729.780433]  ieee80211_scan_work+0x3db/0x4b0 [mac80211]
[ 7729.780437]  process_one_work+0x1b8/0x420
[ 7729.780440]  worker_thread+0x37/0x4c0
[ 7729.780442]  ? process_one_work+0x420/0x420
[ 7729.780445]  kthread+0xd5/0x100
[ 7729.780447]  ? process_one_work+0x420/0x420
[ 7729.780449]  ? kthread_create_on_node+0x30/0x30
[ 7729.780453]  ret_from_fork+0x21/0x2c
[ 7729.780456] ---[ end trace 2fddf3f499f47c42 ]---

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You received this bug notification because you are a member of Desktop
Packages, which is subscribed to network-manager in Ubuntu.
https://bugs.launchpad.net/bugs/1408963

Title:
  [Xbuntu 14.04, 14.10 and 15.04] Network manager stops working: iwl3945
  :03:00.0: BSM uCode verification failed at addr ...; wlan0:
  deauthenticating from... by local choice (Reason: 3=DEAUTH_LEAVING),

Status in network-manager package in Ubuntu:
  Confirmed

Bug description:
  From time to time, the system loses all wireles networks and kubuntu
  network manager applet goes blank - not even one network is shown. All
  wifi connections are broken. Rebooting fixes the issue, switching to
  WICD on-the-fly enables to continue browsing without rebooting, so it
  seems to be no hardware issue or iwl3945 issue.

  What to expect: stable connections and flawless network managing.
  What happens: so above.

  Further informations about the system, the network configuration, the
  package version can be found in the attachment, also parts of rsyslog
  and dmesg.

  Interesting, according to some helpers, are the following lines:
  dmesg:   wlan0: deauthenticating from 02:26:4d:ac:8f:45 by local choice 
(Reason: 3=DEAUTH_LEAVING)

  lsb_release -a
  No LSB modules are available.
  Distributor ID: Ubuntu
  Description:Ubuntu 14.10
  Release:14.10
  Codename:   utopic

  apt-cache policy network-manager
  network-manager:
    Installiert:   0.9.8.8-0ubuntu28
    Installationskandidat: 0.9.8.8-0ubuntu28
    Versionstabelle:
   *** 0.9.8.8-0ubuntu28 0
  500 http://de.archive.ubuntu.com/ubuntu/ utopic/main amd64 Packages
  100 /var/lib/dpkg/status

To manage n