Problem with function select on kernel 2.6.29.6-rt23

["Jürgen Mell" <mell@hedrich-winders.com>]

Hi,

I have an application which connects via a network socket to a server 
running on the same machine (IP 127.0.0.1) This application uses the 
function 'select' to wait for new data from the server or until a two 
seconds timeout. This works well until there is network traffic on the 
external network interfaces (eth* or WLAN). When there is network 
traffic on the external interfaces, the select function does not wait 
anymore but it returns with a return code of zero, indicating not data 
available on the socket. This happens nearly immediately (after 8 to 9 
microseconds) and not after the specified two seconds interval. The 
timeout parameter of select is updated accordingly (it shows eg. 1 s 
999991 us).
Up to now I could not test this with another kernel but I will try to do 
it this afternoon. Are there any known problems with select? Is there 
any way to circumvent this?

Any help would be greatly appreciated!

        Jürgen

-- 
Jürgen Mell (Software-Entwicklung)       mell@hedrich-winders.com
Tel.:  +49-511-762-18226                 http://www.hedrich-winding.com
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