Hi Sujith, Any update on this problem? I tried it on .31-rc9 (using ubuntu's ubuntu-karmic.git - which is rebased to -rc9) again, and the problem still exists.
As I mentioned earlier, the driver absolutely drops the WLAN connection when subjected to network IO (apparently, anything >10MiB cannot be transferred over the network without rmmod + modprobe exercise a couple of times). Last night, I tried to scp a 60MiB tar from desktop to laptop - I had to rmmod + modprobe the driver twice. It gives good speeds when the transfer starts initially; but as it progresses, the transfer speed keeps dropping to really unusable levels - just a few (<10) KiB's per second. :( The same file when scp'ed from Vista (pre-installed on the laptop) has absolutely no problems - gets over in ~1min - maybe even less - I didn't see the actual clock time; but it's measurably low wrt linux. Are there any patches that you'd like me to try on top of the mainline/ubuntu's tree? Thanks, Kunal On Tue, Aug 25, 2009 at 2:28 AM, Kunal Gangakhedkar <kunal.gangakhed...@gmail.com> wrote: > On Wednesday 19 Aug 2009 9:21:13 am Sujith wrote: >> Kunal Gangakhedkar wrote: >> > Any way we can help debug this issue? >> > It gets really annoying when the driver goes berserk in the middle of a >> > big file transfer - even on LAN. :( >> > >> > rmmod'ing and modprobe'ing the driver again seems to get it working; but, >> > as the network load increases, the driver again starts faltering. >> > >> > The problem starts especially under load on the network - say, while >> > transferring ISOs from desktop to laptop, or updating ubuntu packages. >> > >> > When the driver exhibits the problem, the ping times on the LAN also go >> > berserk - ranging from ~1ms to ~700ms while sitting next to the wireless >> > router (Linksys WRT54GL running OpenWRT Kamikaze 8.09) with packets lost. >> > The router is working fine because my other laptop (IBM Thinkpad R51 >> > running ipw2200) never has any problems with the WLAN. >> > >> > I'm using linux kernel 2.6.31-4-generic (x86_64) on kubuntu jaunty on >> > this new HP laptop (dv6 series). The kernel is built by myself from >> > ubuntu-karmic.git (git://kernel.ubuntu.com/ubuntu/ubuntu-karmic.git) >> > >> > Config options related to ath9k in the kernel: >> > >> > ku...@plutonium:/boot$ grep 'CONFIG_ATH9K' config-2.6.31-4-generic >> > CONFIG_ATH9K=m >> > CONFIG_ATH9K_DEBUG=y >> >> Can you load the driver with the modparam 'debug=0x200' and post the kernel >> log when this issue happens ? Thanks. >> >> Sujith > > Attaching the gzipped log with ath9k loaded with modparam "debug=0x200". > The commands I used to get the logs are: > $ grep -P "(ath(9k)?|wlan)" /var/log/kern.log > ~/ath9k.log > $ gzip -9 ath9k.log > > Please let me know if anything more is needed. > > Kunal > _______________________________________________ ath9k-devel mailing list ath9k-devel@lists.ath9k.org https://lists.ath9k.org/mailman/listinfo/ath9k-devel
