[Prism54-users] scanning function degrade problem...
Jianpeng Dong
jdong@otcwireless.com
Wed, 4 Feb 2004 10:38:15 -0800
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Hi,
I noticed that under the following condition, the scanning function of the
driver degrades rapidly until it won't be able to scan at all and generated
the following error message:
islpci_mgt_response(): queue empty, retrying (jiffies left = 90)
islpci_mgt_response(): queue empty, retrying (jiffies left = 80)
islpci_mgt_response(): queue empty, retrying (jiffies left = 70)
islpci_mgt_response(): queue empty, retrying (jiffies left = 60)
islpci_mgt_response(): queue empty, retrying (jiffies left = 50)
islpci_mgt_response(): queue empty, retrying (jiffies left = 40)
islpci_mgt_response(): queue empty, retrying (jiffies left = 30)
islpci_mgt_response(): queue empty, retrying (jiffies left = 20)
islpci_mgt_response(): queue empty, retrying (jiffies left = 10)
islpci_mgt_response(): queue empty, retrying (jiffies left = 0)
Actions taken by repeating:
iwconfig eth0 mode master
iwconfig eth0 ssid myssid
iwconfig eth0 channel 4
iwconfig eth0 mode managed
iwlist eth0 scanning
The reason I want to change the mode is that because I want to do the
scanning, but when the mode is master, the scanning function does not
perform well (a lot of wireless networks are missing during the scanning).
In addition, if I only used managed more, the scanning can be repeatedly
performed quite nicely without any problem for up to 40 times ( I did not
have time to try more...). If I only used the master mode, the scanning
function also degrades after dozens of times and then the only network it
can find is itself.
Thanks and best,
JP
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<DIV><FONT face=3DArial size=3D2><SPAN=20
class=3D698292618-04022004>Hi,</SPAN></FONT></DIV>
<DIV><FONT face=3DArial size=3D2><SPAN=20
class=3D698292618-04022004></SPAN></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2><SPAN class=3D698292618-04022004>I =
noticed that under=20
the following condition, the scanning function of the driver degrades =
rapidly=20
until it won't be able to scan at all and generated the following <FONT=20
color=3D#0000ff>error message:</FONT></SPAN></FONT></DIV>
<DIV><FONT face=3DArial size=3D2><SPAN=20
class=3D698292618-04022004></SPAN></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2><SPAN=20
class=3D698292618-04022004>islpci_mgt_response(): queue empty, retrying =
(jiffies=20
left =3D 90)
<DIV><FONT face=3DArial size=3D2><SPAN=20
class=3D698292618-04022004>islpci_mgt_response(): queue empty, retrying =
(jiffies=20
left =3D 80)
<DIV><FONT face=3DArial size=3D2><SPAN=20
class=3D698292618-04022004>islpci_mgt_response(): queue empty, retrying =
(jiffies=20
left =3D 70)
<DIV><FONT face=3DArial size=3D2><SPAN=20
class=3D698292618-04022004>islpci_mgt_response(): queue empty, retrying =
(jiffies=20
left =3D 60)
<DIV><FONT face=3DArial size=3D2><SPAN=20
class=3D698292618-04022004>islpci_mgt_response(): queue empty, retrying =
(jiffies=20
left =3D 50)
<DIV><FONT face=3DArial size=3D2><SPAN=20
class=3D698292618-04022004>islpci_mgt_response(): queue empty, retrying =
(jiffies=20
left =3D 40)
<DIV><FONT face=3DArial size=3D2><SPAN=20
class=3D698292618-04022004>islpci_mgt_response(): queue empty, retrying =
(jiffies=20
left =3D 30)
<DIV><FONT face=3DArial size=3D2><SPAN=20
class=3D698292618-04022004>islpci_mgt_response(): queue empty, retrying =
(jiffies=20
left =3D 20)</SPAN></FONT></DIV>
<DIV><FONT face=3DArial size=3D2><SPAN class=3D698292618-04022004>
<DIV><FONT face=3DArial size=3D2><SPAN=20
class=3D698292618-04022004>islpci_mgt_response(): queue empty, retrying =
(jiffies=20
left =3D 10)</SPAN></FONT></DIV>
<DIV><FONT face=3DArial size=3D2><SPAN class=3D698292618-04022004>
<DIV><FONT face=3DArial size=3D2><SPAN=20
class=3D698292618-04022004>islpci_mgt_response(): queue empty, retrying =
(jiffies=20
left =3D 0)</SPAN></FONT></DIV>
<DIV><FONT face=3DArial size=3D2><SPAN=20
class=3D698292618-04022004></SPAN></FONT> </DIV>
<DIV><FONT face=3DArial color=3D#0000ff size=3D2><SPAN=20
class=3D698292618-04022004>Actions taken by =
repeating:</SPAN></FONT></DIV>
<DIV><FONT face=3DArial size=3D2><SPAN =
class=3D698292618-04022004>iwconfig eth0 mode=20
master</SPAN></FONT></DIV>
<DIV><FONT face=3DArial size=3D2><SPAN =
class=3D698292618-04022004>iwconfig eth0 ssid=20
myssid</SPAN></FONT></DIV>
<DIV><FONT face=3DArial size=3D2><SPAN =
class=3D698292618-04022004>iwconfig eth0=20
channel 4</SPAN></FONT></DIV>
<DIV><FONT face=3DArial size=3D2><SPAN =
class=3D698292618-04022004>iwconfig eth0 mode=20
managed</SPAN></FONT></DIV>
<DIV><FONT face=3DArial size=3D2><SPAN class=3D698292618-04022004>iwlist =
eth0=20
scanning</SPAN></FONT></DIV>
<DIV><FONT face=3DArial size=3D2><SPAN=20
class=3D698292618-04022004></SPAN></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2><SPAN class=3D698292618-04022004>The =
reason I want to=20
change the mode is that because I want to do the scanning, but when the =
mode is=20
master, the scanning function does not perform well (a lot of wireless =
networks=20
are missing during the scanning). In addition, if I only used managed =
more, the=20
scanning can be repeatedly performed quite nicely without any problem =
for up to=20
40 times ( I did not have time to try more...). If I only used the =
master mode,=20
the scanning function also degrades after dozens of times and then the =
only=20
network it can find is itself.</SPAN></FONT></DIV>
<DIV><FONT face=3DArial size=3D2><SPAN=20
class=3D698292618-04022004></SPAN></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2><SPAN class=3D698292618-04022004>Thanks =
and=20
best,</SPAN></FONT></DIV>
<DIV><FONT face=3DArial size=3D2><SPAN=20
class=3D698292618-04022004></SPAN></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2><SPAN=20
class=3D698292618-04022004>JP</SPAN></FONT></DIV></SPAN></FONT></DIV></SP=
AN></FONT></DIV></SPAN></FONT></DIV></SPAN></FONT></DIV></SPAN></FONT></D=
IV></SPAN></FONT></DIV></SPAN></FONT></DIV></SPAN></FONT></DIV></SPAN></F=
ONT></DIV></BODY></HTML>
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