14e4:4727 ubuntu slows down network

[Leo van den Berge]

Ubuntu 12.04 LTS (32) installed on a HP G62 (i5 processor) connected with wifi.
router = netgear WNR3500L
It's working great, speedtest showing 41/48 Mbps down/up.

However, other equipment in the house virtually comes to a halt.
Windows laptop goes under 1 Mbps down/up.
But also ipad, iphone, android phone, all are freezing.
As soon as i disconnect the wifi on ubuntu, other equipment goes back to normal speeds.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Grant Ashman (thoughtcoder)]

This seems to be caused by the "bcmwl" Broadcom driver for the bcm4313.
I can confirm this symptom as well - all other network connected devices grind to a halt with this driver - i.e. Streaming media on xbox360 is unusable - I put my laptop to sleep and BAM - all devices are good again... wake the laptop up, let it connect and instantly everything starts buffering and stuttering.

It doesn't happen with the brcmsmac driver, however I have other issues with that drive such as resume from suspend and Wifi signal strength.

[Grant Ashman (thoughtcoder)]

Interestingly, if I do a "sudo iwconfig eth1" with the bcmwl driver, I also get a kernel panic. Can anyone confirm this behaviour?
To confirm, I'm running Raring and seeing these symptoms where reporter states 12.04.2

[Joseph Salisbury (jsalisbury)]

Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v3.9 kernel[0] (Not a kernel in the daily directory) and install both the linux-image and linux-image-extra .deb packages.

If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'.

If you are unable to test the mainline kernel, for example it will not boot, please add the tag: 'kernel-unable-to-test-upstream'.
Once testing of the upstream kernel is complete, please mark this bug as "Confirmed".

Thanks in advance.

[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.9-rc2-raring/

[Leo van den Berge (leovandenberge)]

i'll give it a try later tonight.....

[Leo van den Berge (leovandenberge)]

downloaded the deb's, got some errors during installation related to missing linux header deb
added the header debs (generic i386 deb and all.deb)
re-installation gave some errors again, pointing me to /var/lib/dkms/bcmwl/6.20.155.1+bdcom/build/make.log
this is one bridge too far for me, sorry

rebooted the laptop with the new os
could not connect to my wifi as it no longer appears in the wifi connection menu
let me know if i can do anything extra from here on...
thx

[Grant Ashman (thoughtcoder)]

Confirming above - kernel itself works fine but the bmcwl driver won't install/initiate;

Log started: 2013-03-12 11:35:37
(Reading database ... 285377 files and directories currently installed.)
Preparing to replace bcmwl-kernel-source 6.20.155.1+bdcom-0ubuntu6 (using .../bcmwl-kernel-source_6.20.155.1+bdcom-0ubuntu6_amd64.deb) ...
Removing all DKMS Modules
Done.
Unpacking replacement bcmwl-kernel-source ...
Setting up bcmwl-kernel-source (6.20.155.1+bdcom-0ubuntu6) ...
Loading new bcmwl-6.20.155.1+bdcom DKMS files...
Building only for 3.9.0-030900rc2-generic
Building for architecture x86_64
Building initial module for 3.9.0-030900rc2-generic
Traceback (most recent call last):
  File "/usr/share/apport/package-hooks/dkms_packages.py", line 22, in <module>
    import apport
ImportError: No module named apport
Error! Bad return status for module build on kernel: 3.9.0-030900rc2-generic (x86_64)
Consult /var/lib/dkms/bcmwl/6.20.155.1+bdcom/build/make.log for more information.
FATAL: Module wl not found.
update-initramfs: deferring update (trigger activated)
Processing triggers for initramfs-tools ...
update-initramfs: Generating /boot/initrd.img-3.9.0-030900rc2-generic
Log ended: 2013-03-12 11:36:03

root@leviathan:/var/lib/dkms/bcmwl/6.20.155.1+bdcom/build# cat make.log
DKMS make.log for bcmwl-6.20.155.1+bdcom for kernel 3.9.0-030900rc2-generic (x86_64)
Tue Mar 12 11:35:50 EST 2013
make: Entering directory `/usr/src/linux-headers-3.9.0-030900rc2-generic'
CFG80211 API is prefered for this kernel version
Using CFG80211 API
  LD /var/lib/dkms/bcmwl/6.20.155.1+bdcom/build/built-in.o
  CC [M] /var/lib/dkms/bcmwl/6.20.155.1+bdcom/build/src/shared/linux_osl.o
  CC [M] /var/lib/dkms/bcmwl/6.20.155.1+bdcom/build/src/wl/sys/wl_linux.o
  CC [M] /var/lib/dkms/bcmwl/6.20.155.1+bdcom/build/src/wl/sys/wl_iw.o
  CC [M] /var/lib/dkms/bcmwl/6.20.155.1+bdcom/build/src/wl/sys/wl_cfg80211.o
/var/lib/dkms/bcmwl/6.20.155.1+bdcom/build/src/wl/sys/wl_cfg80211.c:1578:2: warning: initialization from incompatible pointer type [enabled by default]
/var/lib/dkms/bcmwl/6.20.155.1+bdcom/build/src/wl/sys/wl_cfg80211.c:1578:2: warning: (near initialization for ‘wl_cfg80211_ops.set_tx_power’) [enabled by default]
/var/lib/dkms/bcmwl/6.20.155.1+bdcom/build/src/wl/sys/wl_cfg80211.c:1579:2: warning: initialization from incompatible pointer type [enabled by default]
/var/lib/dkms/bcmwl/6.20.155.1+bdcom/build/src/wl/sys/wl_cfg80211.c:1579:2: warning: (near initialization for ‘wl_cfg80211_ops.get_tx_power’) [enabled by default]
/var/lib/dkms/bcmwl/6.20.155.1+bdcom/build/src/wl/sys/wl_cfg80211.c: In function ‘wl_update_bss_info’:
/var/lib/dkms/bcmwl/6.20.155.1+bdcom/build/src/wl/sys/wl_cfg80211.c:2025:3: warning: passing argument 1 of ‘cfg80211_put_bss’ from incompatible pointer type [enabled by default]
In file included from /var/lib/dkms/bcmwl/6.20.155.1+bdcom/build/src/wl/sys/wl_cfg80211.c:33:0:
include/net/cfg80211.h:3302:6: note: expected ‘struct wiphy *’ but argument is of type ‘struct cfg80211_bss *’
/var/lib/dkms/bcmwl/6.20.155.1+bdcom/build/src/wl/sys/wl_cfg80211.c:2025:3: error: too few arguments to function ‘cfg80211_put_bss’
In file included from /var/lib/dkms/...

[Launchpad Janitor (janitor)]

[Expired for linux (Ubuntu) because there has been no activity for 60 days.]

[Eriks Ocakovskis (e-ocakovskis)]

I have fixed this issue for my Ubuntu 12.04 by disabling additional wireless drivers.
Applications -> System Settings -> Additional Drivers -> Broadcom STA proprietary wireless driver.

[axelsvag (darinsson)]

I have exactly the same problemn with my Lenovo with the same wireless hardware and ubuntu 13.04 usin additional driver "STA" slows down the whole network disable all is good except very poor performance of the lenovo but all other in the network are happy)))))))))))))))))))))))))

[penalvch (penalvch)]

Leo van den Berge, could you please confirm this issue exists with the latest development release of Ubuntu? ISO images are available from http://cdimage.ubuntu.com/daily-live/current/ . If the issue remains, could you please run the following command in the development release from a Terminal (Applications->Accessories->Terminal), as it will automatically gather and attach updated debug information to this report:

apport-collect -p linux <replace-with-bug-number>

Also, could you please test the latest upstream kernel available following https://wiki.ubuntu.com/KernelMainlineBuilds ? It will allow additional upstream developers to examine the issue. Please do not test the daily folder, but the one all the way at the bottom. Once you've tested the upstream kernel, please comment on which kernel version specifically you tested. If this bug is fixed in the mainline kernel, please add the following tags:
kernel-fixed-upstream
kernel-fixed-upstream-VERSION-NUMBER

where VERSION-NUMBER is the version number of the kernel you tested. For example:
kernel-fixed-upstream-v3.11-rc3

This can be done by clicking on the yellow circle with a black pencil icon next to the word Tags located at the bottom of the bug description. As well, please remove the tag:
needs-upstream-testing

If the mainline kernel does not fix this bug, please add the following tags:
kernel-bug-exists-upstream
kernel-bug-exists-upstream-VERSION-NUMBER

As well, please remove the tag:
needs-upstream-testing

If you are unable to test the mainline kernel, please comment as to why specifically you were unable to test it and add the following tags:
kernel-unable-to-test-upstream
kernel-unable-to-test-upstream-VERSION-NUMBER

Once testing of the upstream kernel is complete, please mark this bug's Status as Confirmed. Please let us know your results. Thank you for your understanding.

[Launchpad Janitor (janitor)]

[Expired for linux (Ubuntu) because there has been no activity for 60 days.]

[Daniel Voyce (voycey)]

This is still an issue

[penalvch (penalvch)]

Daniel Voyce, it will help immensely if you filed a new report via a terminal:
ubuntu-bug linux

Please feel free to subscribe me to it.

[Launchpad Janitor (janitor)]

[Expired for linux (Ubuntu) because there has been no activity for 60 days.]