Re: ksoftirqd uses 99% CPU triggered by network traffic (maybe RLT-8139 related)

[Hector Martin <hector@marcansoft.com>]

Pasi Sjoholm wrote:

>Ok, now I have tested it for 6 hours without crashing the driver. The 
>system's load has been something like 5-6 the whole time. I also made some 
>network load with ~90Mbps-incoming and ~90Mbps-outgoing traffic. 
>
>I haven't had time to test anything else but I'm quite sure that there is 
>no need for that anymore because the stability we have reached. 
>
>I'll let you know if there's any problems within next few days but I would 
>recommend that those patches would be included in 2.6.8. (without that "if 
>(received > 0) {").
>
>Many thanks for your help to resolve this problem. 
>
>Hector, have you tested these patches?
>
>  
>
Wow.. I gotta learn some more about kernel hacking someday.. lol

I applied both (new) -10 and -20 patches and removed the test.

I doubled the debug-messages that get sent to the PC (the UDP traffic) 
but it froze (the sender) and stopped sending them after 5 minutes. I 
guess that's because of the crappy TCP/IP stack on the other side (this 
is a PlayStation2 application i'm developing, and the homebrew PS2 
TCP/IP stack doesn't have a good reputation.) I'm back to normal 
debugging, I'll test it for a couple of hours. So far, no problem.