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[Bug 1262388] Re: 8086:08b1 [Toshiba Satellite P55-A5312] Intel 7260 Wifi regularly crashes

 

Hi,

For information, 
I'm experiencing the same "Microcode SW error detected" problem with Intel 7260 wifi chipset. I've installed the firmware given by JamesE in comment #35 and I confirm the connectivity is much more stable. No more disconnect in 1 hour.

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https://bugs.launchpad.net/bugs/1262388

Title:
  8086:08b1 [Toshiba Satellite P55-A5312] Intel 7260 Wifi regularly
  crashes

Status in “linux” package in Ubuntu:
  Triaged

Bug description:
  My wifi connection is rather unstable in Saucy and Trusty using the
  default firmware and kernel. Once the abort occurs, wifi becomes very
  unstable, crashing every 5 mins.

  I've also tested kernel version 3.11.8, using Firmware
  iwlwifi-7260-7-ucode (ie. version 7) for the 7260 controller.

  So far, the following commit has helped in dealing with this issue:
  http://kernel.ubuntu.com/git?p=ubuntu/ubuntu-trusty.git;a=commitdiff;h=6960a059b2c618f32fe549f13287b3d2278c09e9

  Looking at dmesg, the failure appears to originate as:
  [ 398.780636] ieee80211 phy0: Hardware restart was requested
  [ 398.781020] iwlwifi 0000:02:00.0: L1 Disabled; Enabling L0S
  [ 398.781158] iwlwifi 0000:02:00.0: L1 Disabled; Enabling L0S
  [ 398.789161] iwlwifi 0000:02:00.0: Microcode SW error detected. Restarting 0x2000000.

  Then, after some register values (I can post these if you want), I get:
  [ 398.789618] iwlwifi 0000:02:00.0: Firmware error during reconfiguration! Abort.
  [ 398.789622] iwlwifi 0000:02:00.0: FW error in SYNC CMD MAC_CONTEXT_CMD

  Finally, I get the same warning in util.c:
  [ 398.789949] WARNING: CPU: 2 PID: 1474 at /home/apw/COD/linux/net/mac80211/util.c:1509 ieee80211_reconfig+0x15d9/0x1860 [mac80211]()

  Edit:  I have since upgraded to kernel 3.13, and although the crash still occurs, iwlwifi tries to restart itself.  I can see the wifi icon disconnect and then reconnect automatically a few seconds later.  This trace is from syslog:
  Dec 18 16:27:58 RoganJosh-JME kernel: [  407.310204] ieee80211 phy0: Hardware restart was requested
  Dec 18 16:27:58 RoganJosh-JME kernel: [  407.310566] iwlwifi 0000:02:00.0: L1 Disabled; Enabling L0S
  Dec 18 16:27:58 RoganJosh-JME kernel: [  407.310720] iwlwifi 0000:02:00.0: L1 Disabled; Enabling L0S
  Dec 18 16:27:58 RoganJosh-JME kernel: [  407.319280] iwlwifi 0000:02:00.0: Microcode SW error detected.  Restarting 0x2000000.
  ..
  ..
  Dec 18 16:27:58 RoganJosh-JME kernel: [  407.319749] iwlwifi 0000:02:00.0: Firmware error during reconfiguration - reprobe!
  ..
  Dec 18 16:27:58 RoganJosh-JME kernel: [  407.319778] Workqueue: events ieee80211_restart_work [mac80211]
  Dec 18 16:27:58 RoganJosh-JME kernel: [  407.319781]  ffff88019450b218 ffff8800d9313a98 ffffffff81757304 0000000000000000
  Dec 18 16:27:58 RoganJosh-JME kernel: [  407.319786]  ffff880194508000 ffff8800d9313b28 ffffffffa02cd100 ffff880196b6c000
  Dec 18 16:27:58 RoganJosh-JME kernel: [  407.319790]  ffffffff00000019 00000015d9120000 0000000000000019 ffff880000000000
  Dec 18 16:27:58 RoganJosh-JME kernel: [  407.319794] Call Trace:
  Dec 18 16:27:58 RoganJosh-JME kernel: [  407.319801]  [<ffffffff81757304>] dump_stack+0x46/0x58
  Dec 18 16:27:58 RoganJosh-JME kernel: [  407.319813]  [<ffffffffa02cd100>] iwl_pcie_send_hcmd_sync+0x580/0x590 [iwlwifi]
  Dec 18 16:27:58 RoganJosh-JME kernel: [  407.319819]  [<ffffffff810ad760>] ? __wake_up_sync+0x20/0x20
  Dec 18 16:27:58 RoganJosh-JME kernel: [  407.319828]  [<ffffffffa02ce53a>] iwl_trans_pcie_send_hcmd+0x2a/0x80 [iwlwifi]
  Dec 18 16:27:58 RoganJosh-JME kernel: [  407.319836]  [<ffffffffa0585d3e>] iwl_mvm_send_cmd+0x2e/0xa0 [iwlmvm]
  Dec 18 16:27:58 RoganJosh-JME kernel: [  407.319841]  [<ffffffffa0585ded>] iwl_mvm_send_cmd_pdu+0x3d/0x40 [iwlmvm]
  Dec 18 16:27:58 RoganJosh-JME kernel: [  407.319847]  [<ffffffffa0583ff3>] iwl_mvm_mac_ctxt_send_cmd+0x33/0x70 [iwlmvm]
  Dec 18 16:27:58 RoganJosh-JME kernel: [  407.319853]  [<ffffffffa0584e00>] iwl_mvm_mac_ctxt_cmd_station+0xe0/0x140 [iwlmvm]
  Dec 18 16:27:58 RoganJosh-JME kernel: [  407.319858]  [<ffffffffa0585526>] iwl_mvm_mac_ctx_send+0x56/0xa0 [iwlmvm]
  Dec 18 16:27:58 RoganJosh-JME kernel: [  407.319863]  [<ffffffffa058597e>] iwl_mvm_mac_ctxt_add+0x2e/0xc0 [iwlmvm]
  Dec 18 16:27:58 RoganJosh-JME kernel: [  407.319868]  [<ffffffffa058134a>] iwl_mvm_mac_add_interface+0xfa/0x2d0 [iwlmvm]
  Dec 18 16:27:58 RoganJosh-JME kernel: [  407.319872]  [<ffffffff81611787>] ? led_trigger_event+0x47/0x60
  Dec 18 16:27:58 RoganJosh-JME kernel: [  407.319891]  [<ffffffffa04de924>] ieee80211_reconfig+0x5e4/0x1840 [mac80211]
  Dec 18 16:27:58 RoganJosh-JME kernel: [  407.319903]  [<ffffffffa04b9f48>] ? ieee80211_scan_cancel+0xb8/0x1b0 [mac80211]
  Dec 18 16:27:58 RoganJosh-JME kernel: [  407.319913]  [<ffffffffa04b11d7>] ieee80211_restart_work+0x87/0xb0 [mac80211]
  Dec 18 16:27:58 RoganJosh-JME kernel: [  407.319917]  [<ffffffff810843cf>] process_one_work+0x17f/0x4c0
  Dec 18 16:27:58 RoganJosh-JME kernel: [  407.319920]  [<ffffffff810855fb>] worker_thread+0x11b/0x3d0
  Dec 18 16:27:58 RoganJosh-JME kernel: [  407.319924]  [<ffffffff810854e0>] ? manage_workers.isra.21+0x190/0x190
  Dec 18 16:27:58 RoganJosh-JME kernel: [  407.319927]  [<ffffffff8108c599>] kthread+0xc9/0xe0
  Dec 18 16:27:58 RoganJosh-JME kernel: [  407.319932]  [<ffffffff8108c4d0>] ? flush_kthread_worker+0xb0/0xb0
  Dec 18 16:27:58 RoganJosh-JME kernel: [  407.319936]  [<ffffffff8176ce7c>] ret_from_fork+0x7c/0xb0
  Dec 18 16:27:58 RoganJosh-JME kernel: [  407.319940]  [<ffffffff8108c4d0>] ? flush_kthread_worker+0xb0/0xb0
  Dec 18 16:27:58 RoganJosh-JME kernel: [  407.319944] iwlwifi 0000:02:00.0: Failed to send MAC context (action:1): -5
  Dec 18 16:27:58 RoganJosh-JME kernel: [  407.320045] iwlwifi 0000:02:00.0: PHY ctxt cmd error. ret=-5
  Dec 18 16:27:58 RoganJosh-JME kernel: [  407.320047] iwlwifi 0000:02:00.0: Failed to add PHY context
  Dec 18 16:27:58 RoganJosh-JME kernel: [  407.320049] ------------[ cut here ]------------
  Dec 18 16:27:58 RoganJosh-JME kernel: [  407.320067] WARNING: CPU: 2 PID: 867 at /home/apw/COD/linux/net/mac80211/util.c:1531 ieee80211_reconfig+0x15b9/0x1840 [mac80211]()

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: linux-image-3.8.0-34-generic 3.8.0-34.49~precise1
  ProcVersionSignature: Ubuntu 3.8.0-34.49~precise1-generic 3.8.13.12
  Uname: Linux 3.8.0-34-generic x86_64
  AlsaVersion: Advanced Linux Sound Architecture Driver Version k3.8.0-34-generic.
  ApportVersion: 2.0.1-0ubuntu17.6
  Architecture: amd64
  ArecordDevices:
   **** List of CAPTURE Hardware Devices ****
   card 2: PCH [HDA Intel PCH], device 0: STAC92xx Analog [STAC92xx Analog]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC2:  jamesmeast   1960 F.... pulseaudio
   /dev/snd/controlC0:  jamesmeast   1960 F.... pulseaudio
   /dev/snd/controlC1:  jamesmeast   1960 F.... pulseaudio
  CRDA:
   country CN:
    (2402 - 2482 @ 40), (N/A, 20)
    (5735 - 5835 @ 40), (N/A, 30)
  Card0.Amixer.info:
   Card hw:0 'MID'/'HDA Intel MID at 0xf7d14000 irq 60'
     Mixer name	: 'Intel Haswell HDMI'
     Components	: 'HDA:80862807,1179fa40,00100000'
     Controls      : 7
     Simple ctrls  : 1
  Card0.Amixer.values:
   Simple mixer control 'IEC958',0
     Capabilities: pswitch pswitch-joined penum
     Playback channels: Mono
     Mono: Playback [on]
  Card1.Amixer.info:
   Card hw:1 'Speaker'/'           Logitech Logitech Speaker at usb-0000:00:1d.0-1.2, full speed'
     Mixer name	: 'USB Mixer'
     Components	: 'USB046d:0a10'
     Controls      : 3
     Simple ctrls  : 1
  Card2.Amixer.info:
   Card hw:2 'PCH'/'HDA Intel PCH at 0xf7d10000 irq 61'
     Mixer name	: 'IDT 92HD99BXX'
     Components	: 'HDA:111d76e5,1179fa4e,00100303'
     Controls      : 19
     Simple ctrls  : 9
  Date: Wed Dec 18 16:39:34 2013
  HibernationDevice: RESUME=UUID=24d8f789-5daa-4fd3-a941-8321de03a19c
  InstallationMedia: Ubuntu 12.04.3 LTS "Precise Pangolin" - Release amd64 (20130820.1)
  MachineType: TOSHIBA Satellite P55-A
  MarkForUpload: True
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.8.0-34-generic.efi.signed root=UUID=8e841222-9826-40f5-9aba-d1949b774240 ro acpi_osi=Linux acpi_backlight=vendor quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.8.0-34-generic N/A
   linux-backports-modules-3.8.0-34-generic  N/A
   linux-firmware                            1.79.9
  SourcePackage: linux-lts-raring
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 10/09/2013
  dmi.bios.vendor: TOSHIBA
  dmi.bios.version: 1.40
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: VG10ST
  dmi.board.vendor: TOSHIBA
  dmi.board.version: To be filled by O.E.M.
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: TOSHIBA
  dmi.chassis.version: To Be Filled By O.E.M.
  dmi.modalias: dmi:bvnTOSHIBA:bvr1.40:bd10/09/2013:svnTOSHIBA:pnSatelliteP55-A:pvrPSPMJU-01U02J:rvnTOSHIBA:rnVG10ST:rvrTobefilledbyO.E.M.:cvnTOSHIBA:ct10:cvrToBeFilledByO.E.M.:
  dmi.product.name: Satellite P55-A
  dmi.product.version: PSPMJU-01U02J
  dmi.sys.vendor: TOSHIBA

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