kernel-packages team mailing list archive

[Benjamin Kerensa <bkerensa@xxxxxxxxxx>]

@Joseph:

This has been happening since the first 13.10 image was available and I
installed it so several months now. So it happened in 3.10 and is still
occuring in 3.11. I just had it happen again this evening and looked at
dmesg and saw some odd looking messages about iwlwifi:

[   80.035772] Call Trace:
[   80.035777]  [<ffffffff816f2351>] dump_stack+0x45/0x56
[   80.035781]  [<ffffffff81061cfd>] warn_slowpath_common+0x7d/0xa0
[   80.035783]  [<ffffffff81061dda>] warn_slowpath_null+0x1a/0x20
[   80.035788]  [<ffffffffa02ed225>] iwl_trans_pcie_send_hcmd+0x575/0x5d0 [iwlwifi]
[   80.035794]  [<ffffffffa0459b0b>] ? iwlagn_set_rxon_chain+0x16b/0x260 [iwldvm]
[   80.035799]  [<ffffffffa0459cc2>] iwl_dvm_send_cmd+0x52/0x130 [iwldvm]
[   80.035804]  [<ffffffffa045a0e1>] iwl_dvm_send_cmd_pdu+0x41/0x50 [iwldvm]
[   80.035808]  [<ffffffffa04628f4>] iwl_power_set_mode+0x1b4/0x300 [iwldvm]
[   80.035813]  [<ffffffffa0462ae7>] iwl_power_update_mode+0xa7/0x190 [iwldvm]
[   80.035818]  [<ffffffffa0466b91>] iwlagn_mac_config+0x2f1/0x390 [iwldvm]
[   80.035824]  [<ffffffffa0383892>] ieee80211_hw_config+0x72/0x320 [mac80211]
[   80.035835]  [<ffffffffa03bf3ae>] ieee80211_recalc_ps.part.21+0x17e/0x200 [mac80211]
[   80.035845]  [<ffffffffa03c0ca7>] ieee80211_rx_mgmt_beacon+0xd17/0x1110 [mac80211]
[   80.035848]  [<ffffffff8101a2e5>] ? native_sched_clock+0x15/0x80
[   80.035850]  [<ffffffff81098d68>] ? __enqueue_entity+0x78/0x80
[   80.035852]  [<ffffffff8109d96d>] ? enqueue_entity+0x2ad/0xb80
[   80.035854]  [<ffffffff81098206>] ? arch_vtime_task_switch+0x96/0xa0
[   80.035856]  [<ffffffff8109cef8>] ? check_preempt_wakeup+0x1a8/0x270
[   80.035858]  [<ffffffff81092675>] ? check_preempt_curr+0x85/0xa0
[   80.035860]  [<ffffffff810926a9>] ? ttwu_do_wakeup+0x19/0xd0
[   80.035863]  [<ffffffff810945b0>] ? try_to_wake_up+0x200/0x2b0
[   80.035865]  [<ffffffff8109b7ac>] ? update_curr+0xec/0x180
[   80.035874]  [<ffffffffa03c2503>] ieee80211_sta_rx_queued_mgmt+0x2c3/0x540 [mac80211]
[   80.035876]  [<ffffffff8109cef8>] ? check_preempt_wakeup+0x1a8/0x270
[   80.035878]  [<ffffffff81092675>] ? check_preempt_curr+0x85/0xa0
[   80.035880]  [<ffffffff810926a9>] ? ttwu_do_wakeup+0x19/0xd0
[   80.035882]  [<ffffffff810945b0>] ? try_to_wake_up+0x200/0x2b0
[   80.035885]  [<ffffffff8104deb9>] ? default_spin_lock_flags+0x9/0x10
[   80.035893]  [<ffffffffa039343c>] ieee80211_iface_work+0x25c/0x360 [mac80211]
[   80.035895]  [<ffffffff8107afd9>] ? pwq_activate_delayed_work+0x39/0x80
[   80.035897]  [<ffffffff8107cfbc>] process_one_work+0x17c/0x430
[   80.035899]  [<ffffffff8107dc0c>] worker_thread+0x11c/0x3c0
[   80.035901]  [<ffffffff8107daf0>] ? manage_workers.isra.24+0x2a0/0x2a0
[   80.035904]  [<ffffffff81084710>] kthread+0xc0/0xd0
[   80.035906]  [<ffffffff81084650>] ? kthread_create_on_node+0x120/0x120
[   80.035909]  [<ffffffff8170212c>] ret_from_fork+0x7c/0xb0
[   80.035912]  [<ffffffff81084650>] ? kthread_create_on_node+0x120/0x120
[   80.035913] ---[ end trace e07b3e760c09dab0 ]---
[   80.035916] iwlwifi 0000:02:00.0: Command POWER_TABLE_CMD: a command is already active!
[   80.035919] iwlwifi 0000:02:00.0: set power fail, ret = -5

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https://bugs.launchpad.net/bugs/1221857

Title:
  Wifi slowly degrades until no data transfer

Status in “linux” package in Ubuntu:
  Confirmed

Bug description:
  My wifi has been slowly degrading at random times to the point of no
  data transfer but network-manager still shows connected. Only thing
  that resolves it seems to be manually disconnecting from wifi AP via
  network-manager and reconnecting also toggling N off in iwlwifi seems
  to have some effect (maybe coincidence though)

  I have ruled out the issue being a result of interference by checking
  signal quality (iwconfig) when it occurs and my cable modem is online
  with no issues and so is Wireless AP and other devices do not have
  this issue.

  ProblemType: Bug
  DistroRelease: Ubuntu 13.10
  Package: linux-image-3.11.0-5-generic 3.11.0-5.10
  ProcVersionSignature: Ubuntu 3.11.0-5.10-generic 3.11.0
  Uname: Linux 3.11.0-5-generic x86_64
  ApportVersion: 2.12.1-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  bkerensa   1871 F.... pulseaudio
   /dev/snd/pcmC0D0p:   bkerensa   1871 F...m pulseaudio
  Date: Fri Sep  6 10:33:30 2013
  EcryptfsInUse: Yes
  HibernationDevice: RESUME=UUID=42166247-fbbd-410b-acc0-b951406b36bc
  InstallationDate: Installed on 2013-07-27 (41 days ago)
  InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
  MachineType: Dell Inc. Dell System Inspiron N411Z
  MarkForUpload: True
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-5-generic root=UUID=132b8e71-0e4d-42f4-bb3d-8b0a25d42a35 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.11.0-5-generic N/A
   linux-backports-modules-3.11.0-5-generic  N/A
   linux-firmware                            1.113
  SourcePackage: linux
  UpgradeStatus: Upgraded to saucy on 2013-07-27 (41 days ago)
  dmi.bios.date: 06/24/2011
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A00
  dmi.board.asset.tag: Base Board Asset Tag
  dmi.board.name: 0VK06J
  dmi.board.vendor: Dell Inc.
  dmi.board.version: FAB1
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.chassis.version: 0.1
  dmi.modalias: dmi:bvnDellInc.:bvrA00:bd06/24/2011:svnDellInc.:pnDellSystemInspironN411Z:pvr:rvnDellInc.:rn0VK06J:rvrFAB1:cvnDellInc.:ct8:cvr0.1:
  dmi.product.name: Dell System Inspiron N411Z
  dmi.sys.vendor: Dell Inc.

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