BCM43225: Horrible ping with Broadcom sta driver
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
bcmwl (Ubuntu) |
Confirmed
|
Undecided
|
Unassigned |
Bug Description
Wlan chip is as follows:
02:00.0 Network controller: Broadcom Corporation BCM43225 802.11b/g/n (rev 01)
Problem:
As the wl driver seems to be the default for this card I ended up with this driver after a upgrade to quantal.
However, with this driver, compared to the brcmsmac driver, I get really horrible pings on the LAN.
-------
Steps to reproduce:
I attach a console log for demonstration.
max@max-laptop:~$ cat /proc/net/wireless
Inter-| sta-| Quality | Discarded packets | Missed | WE
face | tus | link level noise | nwid crypt frag retry misc | beacon | 22
eth1: 0000 4. -66. -92. 0 0 0 1 0 0
max@max-laptop:~$ lsmod|grep wl
wl 2573568 0
lib80211 14381 2 lib80211_
max@max-laptop:~$ ping 192.168.2.1
PING 192.168.2.1 (192.168.2.1) 56(84) bytes of data.
64 bytes from 192.168.2.1: icmp_req=1 ttl=64 time=139 ms
64 bytes from 192.168.2.1: icmp_req=2 ttl=64 time=161 ms
64 bytes from 192.168.2.1: icmp_req=3 ttl=64 time=185 ms
64 bytes from 192.168.2.1: icmp_req=4 ttl=64 time=208 ms
^C
--- 192.168.2.1 ping statistics ---
4 packets transmitted, 4 received, 0% packet loss, time 3003ms
rtt min/avg/max/mdev = 139.551/
max@max-laptop:~$ sudo rmmod wl && sudo modprobe brcmsmac
[sudo] password for max:
WARNING: Deprecated config file /etc/modprobe.conf, all config files belong into /etc/modprobe.d/.
max@max-laptop:~$ cat /proc/net/wireless
Inter-| sta-| Quality | Discarded packets | Missed | WE
face | tus | link level noise | nwid crypt frag retry misc | beacon | 22
wlan0: 0000 46. -64. -256 0 0 0 0 34 0
max@max-laptop:~$ ping 192.168.2.1
PING 192.168.2.1 (192.168.2.1) 56(84) bytes of data.
64 bytes from 192.168.2.1: icmp_req=1 ttl=64 time=1.33 ms
64 bytes from 192.168.2.1: icmp_req=2 ttl=64 time=1.25 ms
64 bytes from 192.168.2.1: icmp_req=3 ttl=64 time=15.5 ms
64 bytes from 192.168.2.1: icmp_req=4 ttl=64 time=1.22 ms
^C
--- 192.168.2.1 ping statistics ---
4 packets transmitted, 4 received, 0% packet loss, time 3004ms
rtt min/avg/max/mdev = 1.225/4.
max@max-laptop:~$
Maybe wl should not be recommended for this chip.
ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: bcmwl-kernel-source 5.100.82.
ProcVersionSign
Uname: Linux 3.5.0-15-generic x86_64
ApportVersion: 2.5.2-0ubuntu4
Architecture: amd64
CheckboxSubmission: 69266ec2d9afabf
CheckboxSystem: 2954e74ba17fb0e
Date: Sun Sep 23 13:23:18 2012
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Beta amd64 (20110901)
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
LANG=de_DE.UTF-8
SHELL=/bin/bash
SourcePackage: bcmwl
UpgradeStatus: Upgraded to quantal on 2012-09-15 (7 days ago)
Status changed to 'Confirmed' because the bug affects multiple users.