[realtek] System hang with heavy network traffic using rtl8139c

[R. Steve McKown]

I saw your patch in the archives, but got the impression that your crash 
did not lock up the entire system. Did you experience a total system 
lockup? In my case, there is no oops, no sysrq, just a complete system hang.

Thank you for your suggestions. I will try them out and report the 
results to the list.

Stephan Brauss wrote:

>Hello, 
>
>maybe I had a similar problem. In my case, the rtl8139 chip reports
>a negative buffer size and a following dev_alloc_skb() crashed my system.
>The problem was caused by receive buffer overruns that occur if the CPU is not fast
>enough to fetch all data. Please check if you see rtl8139-realted kernel messages 
>during the test.
>I reported this problem to the realtek list some time ago, but, as far as I know,
>it is not included in the test version 1.18 until know.
>  
>