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[Bug 1168819] Re: 168c:0032 Slow wireless with AR9485 ath9k

To: kernel-packages@xxxxxxxxxxxxxxxxxxx
From: "Christopher M. Penalver" <christopher.m.penalver@xxxxxxxxx>
Date: Thu, 07 Nov 2013 11:50:07 -0000
Reply-to: Bug 1168819 <1168819@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx
Pending results of https://bugs.launchpad.net/ubuntu/+source/linux-
signed/+bug/1168819/comments/29 .

** Package changed: linux-signed (Ubuntu) => linux (Ubuntu)

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

** Summary changed:

- 168c:0032 Slow wireless with AR9485 ath9k
+ 168c:0032 [Asus G75VX] Slow wireless with AR9485 ath9k

** Tags added: needs-wifi-debug

** Description changed:

  With the latest raring kernel image (linux-signed-image-3.8.0-18-generic) my wireless connection becomes very slow after a few minutes (ping to my AP increases from < 1ms to ~ 900ms).
  Kernel 3.8.0.17.27 is still fine, other wireless devices continue to work fine if the problem occurs.
  HW is AR9485 (ath9k) 1x1 802.11n in Asus G75VX laptop, AP is Asus RT-AC66U.
  
- 
  # apt-cache policy linux-signed-image-3.8.0-18-generic
  linux-signed-image-3.8.0-18-generic:
-   Installed: 3.8.0-18.28
-   Candidate: 3.8.0-18.28
-   Version table:
-  *** 3.8.0-18.28 0
-         500 http://nl.archive.ubuntu.com/ubuntu/ raring-proposed/main amd64 Packages
-         100 /var/lib/dpkg/status
- 
+   Installed: 3.8.0-18.28
+   Candidate: 3.8.0-18.28
+   Version table:
+  *** 3.8.0-18.28 0
+         500 http://nl.archive.ubuntu.com/ubuntu/ raring-proposed/main amd64 Packages
+         100 /var/lib/dpkg/status
  
  03:00.0 Network controller: Atheros Communications Inc. AR9485 Wireless Network Adapter (rev 01)
- 	Subsystem: AzureWave Device 2c97
- 	Flags: bus master, fast devsel, latency 0, IRQ 17
- 	Memory at f5200000 (64-bit, non-prefetchable) [size=512K]
- 	Expansion ROM at f5280000 [disabled] [size=64K]
- 	Capabilities: [40] Power Management version 2
- 	Capabilities: [50] MSI: Enable- Count=1/4 Maskable+ 64bit+
- 	Capabilities: [70] Express Endpoint, MSI 00
- 	Capabilities: [100] Advanced Error Reporting
- 	Capabilities: [140] Virtual Channel
- 	Capabilities: [160] Device Serial Number 00-00-00-00-00-00-00-00
- 	Kernel driver in use: ath9k
- --- 
+  Subsystem: AzureWave Device 2c97
+  Flags: bus master, fast devsel, latency 0, IRQ 17
+  Memory at f5200000 (64-bit, non-prefetchable) [size=512K]
+  Expansion ROM at f5280000 [disabled] [size=64K]
+  Capabilities: [40] Power Management version 2
+  Capabilities: [50] MSI: Enable- Count=1/4 Maskable+ 64bit+
+  Capabilities: [70] Express Endpoint, MSI 00
+  Capabilities: [100] Advanced Error Reporting
+  Capabilities: [140] Virtual Channel
+  Capabilities: [160] Device Serial Number 00-00-00-00-00-00-00-00
+  Kernel driver in use: ath9k
+ ---
  ApportVersion: 2.9.2-0ubuntu8
  Architecture: amd64
  CRDA: Error: [Errno 2] No such file or directory
  DistroRelease: Ubuntu 13.04
  EcryptfsInUse: Yes
  HibernationDevice:
-  #RESUME=UUID=8c98d3e1-50af-4c74-820b-e3f29cefc50c
-  #RESUME=/dev/mapper/cryptswap1
+  #RESUME=UUID=8c98d3e1-50af-4c74-820b-e3f29cefc50c
+  #RESUME=/dev/mapper/cryptswap1
  InstallationDate: Installed on 2013-03-27 (17 days ago)
  InstallationMedia: Ubuntu-Server 12.10 "Quantal Quetzal" - Release amd64 (20121017.2)
  MachineType: ASUSTeK COMPUTER INC. G75VX
  MarkForUpload: True
  NonfreeKernelModules: nvidia zfs zunicode zavl zcommon znvpair
  Package: linux (not installed)
  ProcFB: 0 EFI VGA
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.8.0-17-generic.efi.signed root=UUID=93525b3d-45ae-49d5-be79-e00da8ca123b ro bootchart=disable
  ProcVersionSignature: Ubuntu 3.8.0-17.27-generic 3.8.6
  RelatedPackageVersions:
-  linux-restricted-modules-3.8.0-17-generic N/A
-  linux-backports-modules-3.8.0-17-generic  N/A
-  linux-firmware                            1.105
+  linux-restricted-modules-3.8.0-17-generic N/A
+  linux-backports-modules-3.8.0-17-generic  N/A
+  linux-firmware                            1.105
  Tags:  raring
  Uname: Linux 3.8.0-17-generic x86_64
  UpgradeStatus: Upgraded to raring on 2013-04-06 (8 days ago)
  UserGroups: adm audio cdrom dialout dip fax floppy fuse lpadmin netdev plugdev sambashare scanner tape vboxusers video
  dmi.bios.date: 02/27/2013
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: G75VX.206
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: G75VX
  dmi.board.vendor: ASUSTeK COMPUTER INC.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK COMPUTER INC.
  dmi.chassis.version: 1.0
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrG75VX.206:bd02/27/2013:svnASUSTeKCOMPUTERINC.:pnG75VX:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnG75VX:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
  dmi.product.name: G75VX
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK COMPUTER INC.
- --- 
- ApportVersion: 2.9.2-0ubuntu8
- Architecture: amd64
- DistroRelease: Ubuntu 13.04
- EcryptfsInUse: Yes
- InstallationDate: Installed on 2013-03-27 (23 days ago)
- InstallationMedia: Ubuntu-Server 12.10 "Quantal Quetzal" - Release amd64 (20121017.2)
- MarkForUpload: True
- NonfreeKernelModules: nvidia zfs zunicode zavl zcommon znvpair
- Package: linux-signed-image-3.8.0-19-generic 3.8.0-19.29
- PackageArchitecture: amd64
- ProcVersionSignature: Ubuntu 3.8.0-19.29-generic 3.8.8
- Tags: third-party-packages raring
- Uname: Linux 3.8.0-19-generic x86_64
- UpgradeStatus: Upgraded to raring on 2013-04-06 (14 days ago)
- UserGroups: adm audio cdrom dialout dip fax floppy fuse lpadmin netdev plugdev sambashare scanner tape vboxusers video

** Attachment removed: "Dependencies.txt"
   https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1168819/+attachment/3648875/+files/Dependencies.txt

** Attachment removed: "ProcEnviron.txt"
   https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1168819/+attachment/3648876/+files/ProcEnviron.txt

** Description changed:

  With the latest raring kernel image (linux-signed-image-3.8.0-18-generic) my wireless connection becomes very slow after a few minutes (ping to my AP increases from < 1ms to ~ 900ms).
  Kernel 3.8.0.17.27 is still fine, other wireless devices continue to work fine if the problem occurs.
  HW is AR9485 (ath9k) 1x1 802.11n in Asus G75VX laptop, AP is Asus RT-AC66U.
- 
- # apt-cache policy linux-signed-image-3.8.0-18-generic
- linux-signed-image-3.8.0-18-generic:
-   Installed: 3.8.0-18.28
-   Candidate: 3.8.0-18.28
-   Version table:
-  *** 3.8.0-18.28 0
-         500 http://nl.archive.ubuntu.com/ubuntu/ raring-proposed/main amd64 Packages
-         100 /var/lib/dpkg/status
- 
- 03:00.0 Network controller: Atheros Communications Inc. AR9485 Wireless Network Adapter (rev 01)
-  Subsystem: AzureWave Device 2c97
-  Flags: bus master, fast devsel, latency 0, IRQ 17
-  Memory at f5200000 (64-bit, non-prefetchable) [size=512K]
-  Expansion ROM at f5280000 [disabled] [size=64K]
-  Capabilities: [40] Power Management version 2
-  Capabilities: [50] MSI: Enable- Count=1/4 Maskable+ 64bit+
-  Capabilities: [70] Express Endpoint, MSI 00
-  Capabilities: [100] Advanced Error Reporting
-  Capabilities: [140] Virtual Channel
-  Capabilities: [160] Device Serial Number 00-00-00-00-00-00-00-00
-  Kernel driver in use: ath9k
+ ~
  ---
  ApportVersion: 2.9.2-0ubuntu8
  Architecture: amd64
  CRDA: Error: [Errno 2] No such file or directory
  DistroRelease: Ubuntu 13.04
  EcryptfsInUse: Yes
  HibernationDevice:
   #RESUME=UUID=8c98d3e1-50af-4c74-820b-e3f29cefc50c
   #RESUME=/dev/mapper/cryptswap1
  InstallationDate: Installed on 2013-03-27 (17 days ago)
  InstallationMedia: Ubuntu-Server 12.10 "Quantal Quetzal" - Release amd64 (20121017.2)
  MachineType: ASUSTeK COMPUTER INC. G75VX
  MarkForUpload: True
  NonfreeKernelModules: nvidia zfs zunicode zavl zcommon znvpair
  Package: linux (not installed)
  ProcFB: 0 EFI VGA
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.8.0-17-generic.efi.signed root=UUID=93525b3d-45ae-49d5-be79-e00da8ca123b ro bootchart=disable
  ProcVersionSignature: Ubuntu 3.8.0-17.27-generic 3.8.6
  RelatedPackageVersions:
   linux-restricted-modules-3.8.0-17-generic N/A
   linux-backports-modules-3.8.0-17-generic  N/A
   linux-firmware                            1.105
  Tags:  raring
  Uname: Linux 3.8.0-17-generic x86_64
  UpgradeStatus: Upgraded to raring on 2013-04-06 (8 days ago)
  UserGroups: adm audio cdrom dialout dip fax floppy fuse lpadmin netdev plugdev sambashare scanner tape vboxusers video
  dmi.bios.date: 02/27/2013
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: G75VX.206
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: G75VX
  dmi.board.vendor: ASUSTeK COMPUTER INC.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK COMPUTER INC.
  dmi.chassis.version: 1.0
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrG75VX.206:bd02/27/2013:svnASUSTeKCOMPUTERINC.:pnG75VX:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnG75VX:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
  dmi.product.name: G75VX
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK COMPUTER INC.

** Tags added: needs-bisect

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https://bugs.launchpad.net/bugs/1168819

Title:
  168c:0032 [Asus G75VX] Slow wireless with AR9485 ath9k

Status in The Linux Kernel:
  Unknown
Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  With the latest raring kernel image (linux-signed-image-3.8.0-18-generic) my wireless connection becomes very slow after a few minutes (ping to my AP increases from < 1ms to ~ 900ms).
  Kernel 3.8.0.17.27 is still fine, other wireless devices continue to work fine if the problem occurs.
  HW is AR9485 (ath9k) 1x1 802.11n in Asus G75VX laptop, AP is Asus RT-AC66U.
  ~
  ---
  ApportVersion: 2.9.2-0ubuntu8
  Architecture: amd64
  CRDA: Error: [Errno 2] No such file or directory
  DistroRelease: Ubuntu 13.04
  EcryptfsInUse: Yes
  HibernationDevice:
   #RESUME=UUID=8c98d3e1-50af-4c74-820b-e3f29cefc50c
   #RESUME=/dev/mapper/cryptswap1
  InstallationDate: Installed on 2013-03-27 (17 days ago)
  InstallationMedia: Ubuntu-Server 12.10 "Quantal Quetzal" - Release amd64 (20121017.2)
  MachineType: ASUSTeK COMPUTER INC. G75VX
  MarkForUpload: True
  NonfreeKernelModules: nvidia zfs zunicode zavl zcommon znvpair
  Package: linux (not installed)
  ProcFB: 0 EFI VGA
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.8.0-17-generic.efi.signed root=UUID=93525b3d-45ae-49d5-be79-e00da8ca123b ro bootchart=disable
  ProcVersionSignature: Ubuntu 3.8.0-17.27-generic 3.8.6
  RelatedPackageVersions:
   linux-restricted-modules-3.8.0-17-generic N/A
   linux-backports-modules-3.8.0-17-generic  N/A
   linux-firmware                            1.105
  Tags:  raring
  Uname: Linux 3.8.0-17-generic x86_64
  UpgradeStatus: Upgraded to raring on 2013-04-06 (8 days ago)
  UserGroups: adm audio cdrom dialout dip fax floppy fuse lpadmin netdev plugdev sambashare scanner tape vboxusers video
  dmi.bios.date: 02/27/2013
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: G75VX.206
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: G75VX
  dmi.board.vendor: ASUSTeK COMPUTER INC.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK COMPUTER INC.
  dmi.chassis.version: 1.0
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrG75VX.206:bd02/27/2013:svnASUSTeKCOMPUTERINC.:pnG75VX:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnG75VX:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
  dmi.product.name: G75VX
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK COMPUTER INC.

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