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[TJ <ubuntu@xxxxxx>]

The latest kernel 3.16 driver doesn't Panic but it still has driver
failures that render the driver and device unable to scan and find
networks.

No need for a bisect since this driver is in staging, and is a work-in-
progress. For Trusty 3.13 kernel it may be necessary to disable building
the module since there is nothing we can do downstream to make it work.

[   13.738475] rtl8821ae: module is from the staging directory, the
quality is unknown, you have been warned.

-- v3.16 kernel --
[   14.019892] WARNING: CPU: 0 PID: 321 at /home/apw/COD/linux/net/wireless/reg.c:1555 wiphy_apply_custom_regulatory+0xbc/0xe0 [cfg80211]()
[   14.019894] wiphy should have REGULATORY_CUSTOM_REG
[   14.019896] Modules linked in: asus_nb_wmi(+) intel_soc_dts_thermal(-) intel_powerclamp asus_wmi sparse_keymap coretemp rtl8821ae(C+) kvm mac80211 crct10dif_pclmul btusb crc32_pclmul ghash_clmulni_intel bluetooth uvcvideo cryptd cfg80211 videobuf2_vmalloc joydev videobuf2_memops videobuf2_core snd_soc_rt5640 v4l2_common snd_hda_intel(+) snd_soc_rl6231 serio_raw snd_hda_controller videodev snd_soc_core media snd_hda_codec snd_compress snd_pcm_dmaengine rtsx_pci_ms snd_seq_midi snd_seq_midi_event snd_rawmidi snd_hwdep 6lowpan_iphc lpc_ich(+) memstick snd_pcm snd_seq wmi i915(+) snd_seq_device snd_timer snd i2c_hid hid soundcore dw_dmac video dw_dmac_core drm_kms_helper drm i2c_designware_platform i2c_algo_bit i2c_designware_core parport_pc spi_pxa2xx_platform pwm_lpss ppdev mac_hid lp 8250_dw mei_txe parport mei snd_soc_sst_acpi iosf_mbi rtsx_pci_sdmmc psmouse r8169 mii ahci rtsx_pci libahci sdhci_acpi sdhci
[   14.019972] CPU: 0 PID: 321 Comm: systemd-udevd Tainted: G         C    3.16.0-031600-generic #201408031935
[   14.019975] Hardware name: ASUSTeK COMPUTER INC. X551MA/X551MA, BIOS X551MA.402 02/08/2014
[   14.019978]  0000000000000613 ffff8800b1633a18 ffffffff82786525 0000000000003f8a
[   14.019984]  ffff8800b1633a68 ffff8800b1633a58 ffffffff8207207c ffffffffc0a9bfb8
[   14.019988]  ffffffffc0a8d1e0 ffff8800aff00260 ffffffffc0a48ab0 ffff8800aff01840
[   14.019993] Call Trace:
[   14.020003]  [<ffffffff82786525>] dump_stack+0x46/0x58
[   14.020010]  [<ffffffff8207207c>] warn_slowpath_common+0x8c/0xc0
[   14.020031]  [<ffffffffc0a48ab0>] ? rtl_regd_init+0x310/0x310 [rtl8821ae]
[   14.020036]  [<ffffffff82072166>] warn_slowpath_fmt+0x46/0x50
[   14.020053]  [<ffffffffc078327c>] wiphy_apply_custom_regulatory+0xbc/0xe0 [cfg80211]
[   14.020067]  [<ffffffffc0a48ab0>] ? rtl_regd_init+0x310/0x310 [rtl8821ae]
[   14.020080]  [<ffffffffc0a488f2>] rtl_regd_init+0x152/0x310 [rtl8821ae]
[   14.020095]  [<ffffffffc0a43c81>] rtl_init_core+0x41/0x170 [rtl8821ae]
[   14.020110]  [<ffffffffc0a57cd9>] rtl_pci_probe+0x289/0x910 [rtl8821ae]
[   14.020116]  [<ffffffff823d4c0e>] local_pci_probe+0x4e/0xa0
[   14.020121]  [<ffffffff823d5d25>] ? pci_match_device+0xe5/0x110
[   14.020126]  [<ffffffff823d5e49>] __pci_device_probe+0xb9/0xf0
[   14.020131]  [<ffffffff823d5eba>] pci_device_probe+0x3a/0x60
[   14.020137]  [<ffffffff824c4091>] really_probe+0x91/0x380
[   14.020141]  [<ffffffff824c4507>] driver_probe_device+0x47/0xa0
[   14.020146]  [<ffffffff824c460b>] __driver_attach+0xab/0xb0
[   14.020150]  [<ffffffff824c4560>] ? driver_probe_device+0xa0/0xa0
[   14.020155]  [<ffffffff824c241e>] bus_for_each_dev+0x5e/0x90
[   14.020159]  [<ffffffff824c3c4e>] driver_attach+0x1e/0x20
[   14.020163]  [<ffffffff824c37d4>] bus_add_driver+0x124/0x260
[   14.020168]  [<ffffffff824c4f04>] driver_register+0x64/0xf0
[   14.020172]  [<ffffffff823d4f8c>] __pci_register_driver+0x4c/0x50
[   14.020184]  [<ffffffffc096a02b>] rtl8821ae_module_init+0x2b/0x1000 [rtl8821ae]
[   14.020192]  [<ffffffffc096a000>] ? 0xffffffffc0969fff
[   14.020198]  [<ffffffff82002157>] do_one_initcall+0xd7/0x200
[   14.020203]  [<ffffffff821c3684>] ? kfree+0x134/0x170
[   14.020209]  [<ffffffff8277b6c1>] do_init_module+0x30/0x181
[   14.020215]  [<ffffffff820f4a89>] load_module+0x4b9/0x5f0
[   14.020219]  [<ffffffff820f20c0>] ? show_initstate+0x50/0x50
[   14.020223]  [<ffffffff820f4d6e>] SyS_finit_module+0xae/0xd0
[   14.020230]  [<ffffffff82793fad>] system_call_fastpath+0x1a/0x1f
[   14.020233] ---[ end trace c3657046d4a5b2fe ]---

** Tags removed: needs-reverse-bisect

** Changed in: linux (Ubuntu)
       Status: Incomplete => Triaged

** Summary changed:

- [Gigabyte GB-BXi7-4470R] Kernel panic in rtl8821ae
+ Kernel panic in rtl8821ae with 3.13.0-30

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1341275

Title:
  Kernel panic in rtl8821ae with 3.13.0-30

Status in “linux” package in Ubuntu:
  Triaged

Bug description:
  After updating the system to linux-image-3.13.0-30-generic (trusty-
  updates), the encounters a kernel panic during boot in the rtl8821ae
  module. This prevents the system from booting.

  This appears to be an issue relating to the mPCI WiFi+BT module
  (Realtek Semiconductor Co., Ltd. RTL8821AE 802.11ac PCIe Wireless
  Network Adapter) included with the system.

  A workaround is to boot using the older linux-image-3.13.0-24-generic
  (trusty).

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-30-generic 3.13.0-30.55
  ProcVersionSignature: Ubuntu 3.13.0-24.47-generic 3.13.9
  Uname: Linux 3.13.0-24-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.2
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  dcoles     2324 F.... pulseaudio
   /dev/snd/pcmC1D0p:   dcoles     2324 F...m pulseaudio
   /dev/snd/controlC0:  dcoles     2324 F.... pulseaudio
  CurrentDesktop: GNOME
  Date: Sun Jul 13 20:35:13 2014
  HibernationDevice: RESUME=UUID=489d6aeb-add6-485d-8056-de392a8591b7
  InstallationDate: Installed on 2014-03-14 (120 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20140310)
  MachineType: GIGABYTE M4HM87P-00
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-24-generic.efi.signed root=/dev/mapper/ubuntu--vg-root ro quiet splash
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-24-generic N/A
   linux-backports-modules-3.13.0-24-generic  N/A
   linux-firmware                             1.127.4
  SourcePackage: linux
  StagingDrivers: rtl8821ae
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 02/06/2014
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: F3
  dmi.board.asset.tag: To be filled by O.E.M.
  dmi.board.name: M4HM87P-00
  dmi.board.vendor: GIGABYTE
  dmi.board.version: 1.x
  dmi.chassis.asset.tag: To Be Filled By O.E.M.
  dmi.chassis.type: 3
  dmi.chassis.vendor: To Be Filled By O.E.M.
  dmi.chassis.version: To Be Filled By O.E.M.
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrF3:bd02/06/2014:svnGIGABYTE:pnM4HM87P-00:pvr1.x:rvnGIGABYTE:rnM4HM87P-00:rvr1.x:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
  dmi.product.name: M4HM87P-00
  dmi.product.version: 1.x
  dmi.sys.vendor: GIGABYTE

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