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[Bug 1445840] Re: 10ec:8176 10-20% packet loss on 802.11n 2.4GHz network

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** Description changed:

  With a Asus PCE-N10 PCI-E Adapter Wireless N I have 10-20% packet loss
  on a 802.11n 2.4GHz network, 2-3200ms latency pinging just the gateway
  192.168.1.1, with no network load on either the router or the WiFi
  chipset. The computer is ~4 feet away from a Verizon Jetpack MiFi 5510L,
  with no obstructions between them. Other clients (Ubuntu with different
- chipset, Windows) don't have this problem. The mainline 4.0 kernel works
- much better (0% packet loss, 1-150ms latency even with 24 Mbps load
- between the WiFi chipset and router).
+ chipset, Windows) don't have this problem.
  
- With Vivid live environment, situation has improved, but still get
- bursts of 2 packets with 300-450ms every 50-100 packets, with ~1% packet
- loss.
+ With Vivid live environment and mainline 4.0, situation has improved,
+ but still get bursts of 2 packets with 300-450ms every 50-100 packets,
+ with ~1% packet loss.
  
- Please backport all missing patches from:
- git clone git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git && git log --grep=rtl8192ce --pretty=oneline --abbrev-commit
- https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1445840/+attachment/4379473/+files/commits.txt
  
  ProblemType: Bug
  DistroRelease: Ubuntu 14.10
  Package: linux-image-3.16.0-34-generic 3.16.0-34.47
  ProcVersionSignature: Ubuntu 3.16.0-34.47-generic 3.16.7-ckt8
  Uname: Linux 3.16.0-34-generic x86_64
  ApportVersion: 2.14.7-0ubuntu8.4
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  moniker    3063 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Sat Apr 18 17:21:37 2015
  HibernationDevice: RESUME=UUID=4afac90c-1164-4d0f-95b5-e95c04ca0070
  InstallationDate: Installed on 2015-04-09 (9 days ago)
  InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
  MachineType: Hewlett-Packard HP ProDesk 400 G1 MT
  ProcFB:
   0 inteldrmfb
   1 radeondrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-34-generic root=UUID=e650b88a-c6af-4c6a-998a-58f6b206b264 ro quiet splash nomdmonddf nomdmonisw vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.16.0-34-generic N/A
   linux-backports-modules-3.16.0-34-generic  N/A
   linux-firmware                             1.138.1
  RfKill:
   0: phy0: Wireless LAN
    Soft blocked: no
    Hard blocked: no
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 12/11/2014
  dmi.bios.vendor: Hewlett-Packard
  dmi.bios.version: L02 v02.39
  dmi.board.asset.tag: MXL4090N3K
  dmi.board.name: 198E
  dmi.board.vendor: Hewlett-Packard
  dmi.chassis.asset.tag: MXL4090N3K
  dmi.chassis.type: 6
  dmi.chassis.vendor: Hewlett-Packard
  dmi.modalias: dmi:bvnHewlett-Packard:bvrL02v02.39:bd12/11/2014:svnHewlett-Packard:pnHPProDesk400G1MT:pvr:rvnHewlett-Packard:rn198E:rvr:cvnHewlett-Packard:ct6:cvr:
  dmi.product.name: HP ProDesk 400 G1 MT
  dmi.sys.vendor: Hewlett-Packard

** Tags removed: bisect-done cherry-pick kernel-fixed-upstream kernel-fixed-upstream-4.0
** Tags added: kernel-bug-exists-upstream kernel-bug-exists-upstream-4.0

** Description changed:

  With a Asus PCE-N10 PCI-E Adapter Wireless N I have 10-20% packet loss
  on a 802.11n 2.4GHz network, 2-3200ms latency pinging just the gateway
  192.168.1.1, with no network load on either the router or the WiFi
  chipset. The computer is ~4 feet away from a Verizon Jetpack MiFi 5510L,
  with no obstructions between them. Other clients (Ubuntu with different
  chipset, Windows) don't have this problem.
  
  With Vivid live environment and mainline 4.0, situation has improved,
  but still get bursts of 2 packets with 300-450ms every 50-100 packets,
  with ~1% packet loss.
- 
  
  ProblemType: Bug
  DistroRelease: Ubuntu 14.10
  Package: linux-image-3.16.0-34-generic 3.16.0-34.47
  ProcVersionSignature: Ubuntu 3.16.0-34.47-generic 3.16.7-ckt8
  Uname: Linux 3.16.0-34-generic x86_64
  ApportVersion: 2.14.7-0ubuntu8.4
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  moniker    3063 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Sat Apr 18 17:21:37 2015
  HibernationDevice: RESUME=UUID=4afac90c-1164-4d0f-95b5-e95c04ca0070
  InstallationDate: Installed on 2015-04-09 (9 days ago)
  InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
  MachineType: Hewlett-Packard HP ProDesk 400 G1 MT
  ProcFB:
   0 inteldrmfb
   1 radeondrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-34-generic root=UUID=e650b88a-c6af-4c6a-998a-58f6b206b264 ro quiet splash nomdmonddf nomdmonisw vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.16.0-34-generic N/A
   linux-backports-modules-3.16.0-34-generic  N/A
   linux-firmware                             1.138.1
  RfKill:
   0: phy0: Wireless LAN
    Soft blocked: no
    Hard blocked: no
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 12/11/2014
  dmi.bios.vendor: Hewlett-Packard
  dmi.bios.version: L02 v02.39
  dmi.board.asset.tag: MXL4090N3K
  dmi.board.name: 198E
  dmi.board.vendor: Hewlett-Packard
  dmi.chassis.asset.tag: MXL4090N3K
  dmi.chassis.type: 6
  dmi.chassis.vendor: Hewlett-Packard
  dmi.modalias: dmi:bvnHewlett-Packard:bvrL02v02.39:bd12/11/2014:svnHewlett-Packard:pnHPProDesk400G1MT:pvr:rvnHewlett-Packard:rn198E:rvr:cvnHewlett-Packard:ct6:cvr:
  dmi.product.name: HP ProDesk 400 G1 MT
  dmi.sys.vendor: Hewlett-Packard

** Description changed:

  With a Asus PCE-N10 PCI-E Adapter Wireless N I have 10-20% packet loss
  on a 802.11n 2.4GHz network, 2-3200ms latency pinging just the gateway
  192.168.1.1, with no network load on either the router or the WiFi
  chipset. The computer is ~4 feet away from a Verizon Jetpack MiFi 5510L,
  with no obstructions between them. Other clients (Ubuntu with different
  chipset, Windows) don't have this problem.
  
  With Vivid live environment and mainline 4.0, situation has improved,
  but still get bursts of 2 packets with 300-450ms every 50-100 packets,
  with ~1% packet loss.
+ 
+ Attempted to use older Asus provided driver from http://www.asus.com/us/Networking/PCEN10/HelpDesk_Download/ :
+ sudo make
+ [sudo] password for moniker: 
+ make[1]: Entering directory '/usr/src/linux-headers-4.0.0-040000-generic'
+ gcc: error: /lib/modules/4.0.0-040000-generic/build/include/linux/autoconf.h: No such file or directory
+ gcc: fatal error: no input files
+ compilation terminated.
+ scripts/Makefile.build:49: *** CFLAGS was changed in "/home/moniker/Desktop/Linux/HAL/rtl8192/Makefile". Fix it to use ccflags-y.  Stop.
+ Makefile:1390: recipe for target '_module_/home/moniker/Desktop/Linux/HAL/rtl8192' failed
+ make[1]: *** [_module_/home/moniker/Desktop/Linux/HAL/rtl8192] Error 2
+ make[1]: Leaving directory '/usr/src/linux-headers-4.0.0-040000-generic'
+ Makefile:35: recipe for target 'all' failed
+ make: *** [all] Error 2
+ 
+ Attempted to use Realtek driver from http://www.realtek.com.tw/downloads/downloadsView.aspx?Langid=1&PNid=21&PFid=48&Level=5&Conn=4&DownTypeID=3&GetDown=false&Downloads=true :
+ sudo make
+ [sudo] password for moniker: 
+ make -C /lib/modules/4.0.0-040000-generic/build M=/home/moniker/Desktop/linux2 modules
+ make[1]: Entering directory '/usr/src/linux-headers-4.0.0-040000-generic'
+   CC [M]  /home/moniker/Desktop/linux2/base.o
+ In file included from /home/moniker/Desktop/linux2/base.c:39:0:
+ /home/moniker/Desktop/linux2/pci.h:247:15: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘rtl_pci_probe’
+  int __devinit rtl_pci_probe(struct pci_dev *pdev,
+                ^
+ /home/moniker/Desktop/linux2/base.c: In function ‘_rtl_init_mac80211’:
+ /home/moniker/Desktop/linux2/base.c:365:4: error: ‘struct ieee80211_hw’ has no member named ‘channel_change_time’
+   hw->channel_change_time = 100;
+     ^
+ /home/moniker/Desktop/linux2/base.c: In function ‘rtl_action_proc’:
+ /home/moniker/Desktop/linux2/base.c:885:32: error: ‘struct ieee80211_conf’ has no member named ‘channel’
+        rx_status.freq = hw->conf.channel->center_freq;
+                                 ^
+ /home/moniker/Desktop/linux2/base.c:886:32: error: ‘struct ieee80211_conf’ has no member named ‘channel’
+        rx_status.band = hw->conf.channel->band;
+                                 ^
+ /home/moniker/Desktop/linux2/base.c: In function ‘rtl_beacon_statistic’:
+ /home/moniker/Desktop/linux2/base.c:1160:2: error: implicit declaration of function ‘compare_ether_addr’ [-Werror=implicit-function-declaration]
+   if (compare_ether_addr(hdr->addr3, rtlpriv->mac80211.bssid))
+   ^
+ /home/moniker/Desktop/linux2/base.c: In function ‘rtl_send_smps_action’:
+ /home/moniker/Desktop/linux2/base.c:1451:24: error: ‘struct ieee80211_conf’ has no member named ‘channel’
+    info->band = hw->conf.channel->band;
+                         ^
+ /home/moniker/Desktop/linux2/base.c: In function ‘rtl_store_debug_level’:
+ /home/moniker/Desktop/linux2/base.c:1684:2: error: implicit declaration of function ‘strict_strtoul’ [-Werror=implicit-function-declaration]
+   ret = strict_strtoul(buf, 0, &val);
+   ^
+ cc1: some warnings being treated as errors
+ scripts/Makefile.build:258: recipe for target '/home/moniker/Desktop/linux2/base.o' failed
+ make[2]: *** [/home/moniker/Desktop/linux2/base.o] Error 1
+ Makefile:1390: recipe for target '_module_/home/moniker/Desktop/linux2' failed
+ make[1]: *** [_module_/home/moniker/Desktop/linux2] Error 2
+ make[1]: Leaving directory '/usr/src/linux-headers-4.0.0-040000-generic'
+ Makefile:27: recipe for target 'all' failed
+ make: *** [all] Error 2
+ 
  
  ProblemType: Bug
  DistroRelease: Ubuntu 14.10
  Package: linux-image-3.16.0-34-generic 3.16.0-34.47
  ProcVersionSignature: Ubuntu 3.16.0-34.47-generic 3.16.7-ckt8
  Uname: Linux 3.16.0-34-generic x86_64
  ApportVersion: 2.14.7-0ubuntu8.4
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  moniker    3063 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Sat Apr 18 17:21:37 2015
  HibernationDevice: RESUME=UUID=4afac90c-1164-4d0f-95b5-e95c04ca0070
  InstallationDate: Installed on 2015-04-09 (9 days ago)
  InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
  MachineType: Hewlett-Packard HP ProDesk 400 G1 MT
  ProcFB:
   0 inteldrmfb
   1 radeondrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-34-generic root=UUID=e650b88a-c6af-4c6a-998a-58f6b206b264 ro quiet splash nomdmonddf nomdmonisw vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.16.0-34-generic N/A
   linux-backports-modules-3.16.0-34-generic  N/A
   linux-firmware                             1.138.1
  RfKill:
   0: phy0: Wireless LAN
    Soft blocked: no
    Hard blocked: no
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 12/11/2014
  dmi.bios.vendor: Hewlett-Packard
  dmi.bios.version: L02 v02.39
  dmi.board.asset.tag: MXL4090N3K
  dmi.board.name: 198E
  dmi.board.vendor: Hewlett-Packard
  dmi.chassis.asset.tag: MXL4090N3K
  dmi.chassis.type: 6
  dmi.chassis.vendor: Hewlett-Packard
  dmi.modalias: dmi:bvnHewlett-Packard:bvrL02v02.39:bd12/11/2014:svnHewlett-Packard:pnHPProDesk400G1MT:pvr:rvnHewlett-Packard:rn198E:rvr:cvnHewlett-Packard:ct6:cvr:
  dmi.product.name: HP ProDesk 400 G1 MT
  dmi.sys.vendor: Hewlett-Packard

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https://bugs.launchpad.net/bugs/1445840

Title:
  10ec:8176 10-20% packet loss on 802.11n 2.4GHz network

Status in linux package in Ubuntu:
  Triaged

Bug description:
  With a Asus PCE-N10 PCI-E Adapter Wireless N I have 10-20% packet loss
  on a 802.11n 2.4GHz network, 2-3200ms latency pinging just the gateway
  192.168.1.1, with no network load on either the router or the WiFi
  chipset. The computer is ~4 feet away from a Verizon Jetpack MiFi
  5510L, with no obstructions between them. Other clients (Ubuntu with
  different chipset, Windows) don't have this problem.

  With Vivid live environment and mainline 4.0, situation has improved,
  but still get bursts of 2 packets with 300-450ms every 50-100 packets,
  with ~1% packet loss.

  Attempted to use older Asus provided driver from http://www.asus.com/us/Networking/PCEN10/HelpDesk_Download/ :
  sudo make
  [sudo] password for moniker: 
  make[1]: Entering directory '/usr/src/linux-headers-4.0.0-040000-generic'
  gcc: error: /lib/modules/4.0.0-040000-generic/build/include/linux/autoconf.h: No such file or directory
  gcc: fatal error: no input files
  compilation terminated.
  scripts/Makefile.build:49: *** CFLAGS was changed in "/home/moniker/Desktop/Linux/HAL/rtl8192/Makefile". Fix it to use ccflags-y.  Stop.
  Makefile:1390: recipe for target '_module_/home/moniker/Desktop/Linux/HAL/rtl8192' failed
  make[1]: *** [_module_/home/moniker/Desktop/Linux/HAL/rtl8192] Error 2
  make[1]: Leaving directory '/usr/src/linux-headers-4.0.0-040000-generic'
  Makefile:35: recipe for target 'all' failed
  make: *** [all] Error 2

  Attempted to use Realtek driver from http://www.realtek.com.tw/downloads/downloadsView.aspx?Langid=1&PNid=21&PFid=48&Level=5&Conn=4&DownTypeID=3&GetDown=false&Downloads=true :
  sudo make
  [sudo] password for moniker: 
  make -C /lib/modules/4.0.0-040000-generic/build M=/home/moniker/Desktop/linux2 modules
  make[1]: Entering directory '/usr/src/linux-headers-4.0.0-040000-generic'
    CC [M]  /home/moniker/Desktop/linux2/base.o
  In file included from /home/moniker/Desktop/linux2/base.c:39:0:
  /home/moniker/Desktop/linux2/pci.h:247:15: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘rtl_pci_probe’
   int __devinit rtl_pci_probe(struct pci_dev *pdev,
                 ^
  /home/moniker/Desktop/linux2/base.c: In function ‘_rtl_init_mac80211’:
  /home/moniker/Desktop/linux2/base.c:365:4: error: ‘struct ieee80211_hw’ has no member named ‘channel_change_time’
    hw->channel_change_time = 100;
      ^
  /home/moniker/Desktop/linux2/base.c: In function ‘rtl_action_proc’:
  /home/moniker/Desktop/linux2/base.c:885:32: error: ‘struct ieee80211_conf’ has no member named ‘channel’
         rx_status.freq = hw->conf.channel->center_freq;
                                  ^
  /home/moniker/Desktop/linux2/base.c:886:32: error: ‘struct ieee80211_conf’ has no member named ‘channel’
         rx_status.band = hw->conf.channel->band;
                                  ^
  /home/moniker/Desktop/linux2/base.c: In function ‘rtl_beacon_statistic’:
  /home/moniker/Desktop/linux2/base.c:1160:2: error: implicit declaration of function ‘compare_ether_addr’ [-Werror=implicit-function-declaration]
    if (compare_ether_addr(hdr->addr3, rtlpriv->mac80211.bssid))
    ^
  /home/moniker/Desktop/linux2/base.c: In function ‘rtl_send_smps_action’:
  /home/moniker/Desktop/linux2/base.c:1451:24: error: ‘struct ieee80211_conf’ has no member named ‘channel’
     info->band = hw->conf.channel->band;
                          ^
  /home/moniker/Desktop/linux2/base.c: In function ‘rtl_store_debug_level’:
  /home/moniker/Desktop/linux2/base.c:1684:2: error: implicit declaration of function ‘strict_strtoul’ [-Werror=implicit-function-declaration]
    ret = strict_strtoul(buf, 0, &val);
    ^
  cc1: some warnings being treated as errors
  scripts/Makefile.build:258: recipe for target '/home/moniker/Desktop/linux2/base.o' failed
  make[2]: *** [/home/moniker/Desktop/linux2/base.o] Error 1
  Makefile:1390: recipe for target '_module_/home/moniker/Desktop/linux2' failed
  make[1]: *** [_module_/home/moniker/Desktop/linux2] Error 2
  make[1]: Leaving directory '/usr/src/linux-headers-4.0.0-040000-generic'
  Makefile:27: recipe for target 'all' failed
  make: *** [all] Error 2

  
  ProblemType: Bug
  DistroRelease: Ubuntu 14.10
  Package: linux-image-3.16.0-34-generic 3.16.0-34.47
  ProcVersionSignature: Ubuntu 3.16.0-34.47-generic 3.16.7-ckt8
  Uname: Linux 3.16.0-34-generic x86_64
  ApportVersion: 2.14.7-0ubuntu8.4
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  moniker    3063 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Sat Apr 18 17:21:37 2015
  HibernationDevice: RESUME=UUID=4afac90c-1164-4d0f-95b5-e95c04ca0070
  InstallationDate: Installed on 2015-04-09 (9 days ago)
  InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
  MachineType: Hewlett-Packard HP ProDesk 400 G1 MT
  ProcFB:
   0 inteldrmfb
   1 radeondrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-34-generic root=UUID=e650b88a-c6af-4c6a-998a-58f6b206b264 ro quiet splash nomdmonddf nomdmonisw vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.16.0-34-generic N/A
   linux-backports-modules-3.16.0-34-generic  N/A
   linux-firmware                             1.138.1
  RfKill:
   0: phy0: Wireless LAN
    Soft blocked: no
    Hard blocked: no
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 12/11/2014
  dmi.bios.vendor: Hewlett-Packard
  dmi.bios.version: L02 v02.39
  dmi.board.asset.tag: MXL4090N3K
  dmi.board.name: 198E
  dmi.board.vendor: Hewlett-Packard
  dmi.chassis.asset.tag: MXL4090N3K
  dmi.chassis.type: 6
  dmi.chassis.vendor: Hewlett-Packard
  dmi.modalias: dmi:bvnHewlett-Packard:bvrL02v02.39:bd12/11/2014:svnHewlett-Packard:pnHPProDesk400G1MT:pvr:rvnHewlett-Packard:rn198E:rvr:cvnHewlett-Packard:ct6:cvr:
  dmi.product.name: HP ProDesk 400 G1 MT
  dmi.sys.vendor: Hewlett-Packard

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References

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