Some more investigation revealed that the cassini driver leaks the data portion of all RXed packets, this makes the driver completely unusable.
We've tested the following combinations: * 2.6.17 (patched, but no cassini related patches) * 2.6.22 Ubuntu Gutsy. It still worked in 2.6.12 where we originally backported the driver from 2.6.14. The sk_buff count in slabinfo stays normal, so the skbs are properly freed. I'm suspicious about all this cas_page_t wrappers. Is there a maintainer for this driver? All our previous questions went unanswered. On Tue, 2007-12-04 at 15:19 +0100, Laszlo Attila Toth wrote: > Hello, > > we got the following message: > SKB BUG: Invalid truesize (376) len=514, sizeof(sk_buff)=248 > > It only occurs on larger traffic (at speed 100 Mbps: always), but not > when downloading a small web page. > > In cas_rx_process_pkt() the the skb's truesize is only set via skb_put() > but it is not used if there are fragments, also skb->len is increased by > the fragment's size, but the truesize member is unchanged. I compared it > to the implementation in e1000 where all of the len, datalen and > trusize members are increased. > > If I modify the code to add the fragment's size to the truesize member, > the driver allocates all available memory after a while. > > Regards, > Attila > -- > To unsubscribe from this list: send the line "unsubscribe netdev" in > the body of a message to [EMAIL PROTECTED] > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- Bazsi -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
