Re: rtl8192se: ping router gives mdev of 25387.102???

From: Norbert Preining
Date: Sat Sep 15 2012 - 00:15:12 EST


Hi Larry, hi all,

On Fr, 14 Sep 2012, wrote:
> I am running on top of default kernel git, will try wireless-testing, too.

I tried now with wireless-testing from yesterday, and had the same problem.
Actually, I got even *better* results:
64 bytes from 192.168.0.1: icmp_req=75 ttl=255 time=137856 ms
64 bytes from 192.168.0.1: icmp_req=76 ttl=255 time=136848 ms
64 bytes from 192.168.0.1: icmp_req=78 ttl=255 time=134943 ms

...
rtt min/avg/max/mdev = 1.110/46967.879/137856.232/49666.671 ms, pipe 138


So now we are mdev of 50secs sometimes ;-)


Another interesting things:
At home I have the problems with the NEC router, but I am now at
the university. I am writing this email over a very very stable
ssh link to another server.

Here is the output iof ifconfig:
$ ifconfig
eth0 Link encap:Ethernet HWaddr 60:eb:69:c9:0c:ea
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:20418 errors:0 dropped:0 overruns:0 frame:0
TX packets:20418 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:1950587 (1.8 MiB) TX bytes:1950587 (1.8 MiB)

wlan0 Link encap:Ethernet HWaddr 88:9f:fa:f9:07:28
inet addr:150.65.206.200 Bcast:150.65.207.255 Mask:255.255.252.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:232640 errors:0 dropped:1 overruns:0 frame:0
TX packets:69798 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:85599897 (81.6 MiB) TX bytes:8925832 (8.5 MiB)


But the kernel is convinced that I am not connected ...:
$ iw dev wlan0 link
Not connected.
$ iwconfig wlan0
wlan0 IEEE 802.11bgn ESSID:off/any
Mode:Managed Access Point: Not-Associated Tx-Power=20 dBm
Retry long limit:7 RTS thr=2347 B Fragment thr:off
Encryption key:off
Power Management:off


And no, I guarantee you there is no ethernet cable plugged in ;-)

I can only assume that is a problem with iwconfig/iw being too old,
although according to the output of iwconfig it is fine:
# iw --version
iw version 3.4
# iwconfig --version
iwconfig Wireless-Tools version 30
Compatible with Wireless Extension v11 to v22.

Kernel Currently compiled with Wireless Extension v22.

wlan0 Recommend Wireless Extension v21 or later,
Currently compiled with Wireless Extension v22.

# uname -a
Linux tofuschnitzel 3.6.0-rc5-wl+ #19 SMP PREEMPT Fri Sep 14 13:14:15 JST 2012 x86_64 GNU/Linux


Best wishes

Norbert
------------------------------------------------------------------------
Norbert Preining preining@{jaist.ac.jp, logic.at, debian.org}
JAIST, Japan TeX Live & Debian Developer
DSA: 0x09C5B094 fp: 14DF 2E6C 0307 BE6D AD76 A9C0 D2BF 4AA3 09C5 B094
------------------------------------------------------------------------
CHICAGO (n.)
The foul-smelling wind which precedes an underground railway train.
--- Douglas Adams, The Meaning of Liff
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/