Mailinglist Archive: opensuse-bugs (4197 mails)

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[Bug 739090] New: very high ping, vanishes after rmmod / modprobe
  • From: bugzilla_noreply@xxxxxxxxxx
  • Date: Sun, 1 Jan 2012 23:59:15 +0000
  • Message-id: <bug-739090-21960@http.bugzilla.novell.com/>

https://bugzilla.novell.com/show_bug.cgi?id=739090

https://bugzilla.novell.com/show_bug.cgi?id=739090#c0


Summary: very high ping, vanishes after rmmod / modprobe
Classification: openSUSE
Product: openSUSE 12.1
Version: Final
Platform: x86-64
OS/Version: Other
Status: NEW
Severity: Major
Priority: P5 - None
Component: Network
AssignedTo: bnc-team-screening@xxxxxxxxxxxxxxxxxxxxxx
ReportedBy: rens.groenewegen@xxxxxxxxx
QAContact: qa@xxxxxxx
Found By: ---
Blocker: ---


User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:9.0) Gecko/20100101
Firefox/9.0

iwlagn intel driver with centrino N 1030 wifi card in laptop dell inspiron 14z

with openSuSE 12.1 and openSuSE 11.4

ping are very high after system boot. (linux only, not with windows 7 )
remote desktop VNC, rdesktop is unusable. XBMC does not work with DLNA/Upnp
servers.

then after unloading and modprobe iwlagn again, with parameter to disable N
networking, ping around 2-4 msec (still high, but acceptable)

since this is a laptop, that goes into sleep and resume all the time, i need to
perform this sequence many times a day, which is irritating.... :-)

my other laptop does not have the issue (realtek, not intel, but also opensuse)


see ping stats below:
=>ping gamez
PING gamez.fritz.box (192.168.1.20) 56(84) bytes of data.
64 bytes from gamez.fritz.box (192.168.1.20): icmp_seq=1 ttl=64 time=4.10 ms
64 bytes from gamez.fritz.box (192.168.1.20): icmp_seq=2 ttl=64 time=1.83 ms
64 bytes from gamez.fritz.box (192.168.1.20): icmp_seq=3 ttl=64 time=0.952 ms
64 bytes from gamez.fritz.box (192.168.1.20): icmp_seq=4 ttl=64 time=1.93 ms
64 bytes from gamez.fritz.box (192.168.1.20): icmp_seq=5 ttl=64 time=0.979 ms
64 bytes from gamez.fritz.box (192.168.1.20): icmp_seq=6 ttl=64 time=1.10 ms
64 bytes from gamez.fritz.box (192.168.1.20): icmp_seq=7 ttl=64 time=6.04 ms
64 bytes from gamez.fritz.box (192.168.1.20): icmp_seq=8 ttl=64 time=7.60 ms
64 bytes from gamez.fritz.box (192.168.1.20): icmp_seq=9 ttl=64 time=1.27 ms
64 bytes from gamez.fritz.box (192.168.1.20): icmp_seq=10 ttl=64 time=9.71 ms
^C
--- gamez.fritz.box ping statistics ---
10 packets transmitted, 10 received, 0% packet loss, time 9013ms
rtt min/avg/max/mdev = 0.952/3.554/9.713/3.016 ms
linux-53g0:root[/etc/init.d]
=>ping gamez
PING gamez.fritz.box (192.168.1.20) 56(84) bytes of data.
64 bytes from gamez.fritz.box (192.168.1.20): icmp_seq=1 ttl=64 time=7.91 ms
64 bytes from gamez.fritz.box (192.168.1.20): icmp_seq=3 ttl=64 time=35.4 ms
64 bytes from gamez.fritz.box (192.168.1.20): icmp_seq=4 ttl=64 time=58.1 ms
64 bytes from gamez.fritz.box (192.168.1.20): icmp_seq=6 ttl=64 time=97.1 ms
64 bytes from gamez.fritz.box (192.168.1.20): icmp_seq=7 ttl=64 time=120 ms
^C
--- gamez.fritz.box ping statistics ---
8 packets transmitted, 5 received, 37% packet loss, time 7013ms
rtt min/avg/max/mdev = 7.918/63.841/120.542/40.716 ms
linux-53g0:root[/etc/init.d]
=>rmmod iwlagn
linux-53g0:root[/etc/init.d]
=>modprobe iwlagn 11n_disable=1
linux-53g0:root[/etc/init.d]
=>ping gamez
PING gamez.fritz.box (192.168.1.20) 56(84) bytes of data.
64 bytes from gamez.fritz.box (192.168.1.20): icmp_seq=1 ttl=64 time=6.35 ms
64 bytes from gamez.fritz.box (192.168.1.20): icmp_seq=2 ttl=64 time=2.35 ms
64 bytes from gamez.fritz.box (192.168.1.20): icmp_seq=3 ttl=64 time=4.67 ms
64 bytes from gamez.fritz.box (192.168.1.20): icmp_seq=4 ttl=64 time=4.61 ms
64 bytes from gamez.fritz.box (192.168.1.20): icmp_seq=5 ttl=64 time=2.24 ms
64 bytes from gamez.fritz.box (192.168.1.20): icmp_seq=6 ttl=64 time=2.23 ms
^C
--- gamez.fritz.box ping statistics ---
6 packets transmitted, 6 received, 0% packet loss, time 5007ms
rtt min/avg/max/mdev = 2.231/3.745/6.355/1.577 ms
linux-53g0:root[/etc/init.d]
=>


Reproducible: Always

Steps to Reproduce:
1. boot, do ping: ping very high
2. rmmod / modprobe
3. ping ok again
4. sleep system or hibernate
5. ping very high
6. rmmod/modprobe
7. ping ok again.


Expected Results:
stabke ping, under 1 msec, like the results when in microsoft windows 7 (x64)

when loading windows driver with ndiswrapper, problem goes away.

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