Kafabih Rahmat:

1) To confirm a regression, did this issue start to happen after an
update? if so, which and when precisely?

2) To keep this relevant to upstream, please continue to test latest
mainline kernel (now 4.18-rc1) as it becomes available. Could you please
advise?

3) There is no need to assign yourself unless you will submit a fix
patch towards this upstream soon.

4) Regarding your comment:
>"Another bug I found..."

This report is only scoped to the segmentation fault. Also, anything you
found while testing an upstream kernel is not supported here in Ubuntu.

** Tags added: bios-outdated-9acn32ww kernel-bug-exists-upstream-4.17.2
needs-upstream-testing

** Attachment removed: "lspci-vnvn.log"
   
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1775772/+attachment/5150111/+files/lspci-vnvn.log

** Attachment removed: "version.log"
   
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1775772/+attachment/5150112/+files/version.log

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

** Changed in: linux (Ubuntu)
     Assignee: Kafabih Rahmat (kafabih-kr) => (unassigned)

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You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1775772

Title:
  Atheros Wireless ath9k random segmentation fault
  ath9k_cmn_rx_skb_postprocess+0x4b/0x130 [ath9k_common]

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Hello, I got random segmentation fault on my Wireless card Atheros QCA9565 / 
AR9565 here I also attached dmesg and another logs.
  --- 
  ProblemType: Bug
  ApportVersion: 2.20.9-0ubuntu7.2
  Architecture: amd64
  CRDA:
   global
   country 98: DFS-UNSET
        (2402 - 2472 @ 20), (N/A, 20), (N/A)
        (5735 - 5815 @ 20), (N/A, 23), (N/A)
  CurrentDesktop: KDE
  DistroRelease: Ubuntu 18.04
  InstallationDate: Installed on 2018-04-14 (64 days ago)
  InstallationMedia: Kubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 
(20160719)
  MachineType: LENOVO 20369
  Package: linux (not installed)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-23-generic 
root=UUID=a14e83f1-8214-4bdd-a01d-d6cebd312997 ro quiet splash vt.handoff=1
  ProcVersionSignature: Ubuntu 4.15.0-23.25-generic 4.15.18
  RelatedPackageVersions:
   linux-restricted-modules-4.15.0-23-generic N/A
   linux-backports-modules-4.15.0-23-generic  N/A
   linux-firmware                             1.173.1
  Tags:  bionic
  Uname: Linux 4.15.0-23-generic x86_64
  UpgradeStatus: Upgraded to bionic on 2018-04-27 (50 days ago)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo vboxusers
  _MarkForUpload: True
  dmi.bios.date: 10/20/2014
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 9ACN29WW
  dmi.board.asset.tag: No Asset Tag
  dmi.board.name: Lancer 4A2
  dmi.board.vendor: LENOVO
  dmi.board.version: NANANANANO DPK
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Lenovo G40-70
  dmi.modalias: 
dmi:bvnLENOVO:bvr9ACN29WW:bd10/20/2014:svnLENOVO:pn20369:pvrLenovoG40-70:rvnLENOVO:rnLancer4A2:rvrNANANANANODPK:cvnLENOVO:ct10:cvrLenovoG40-70:
  dmi.product.family: IDEAPAD
  dmi.product.name: 20369
  dmi.product.version: Lenovo G40-70
  dmi.sys.vendor: LENOVO

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