lkml.org 
[lkml]   [2003]   [Aug]   [12]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Subject2.6.0-test3+sk98lin driver with hardware bug make eth unusable
Date
I've already reported this problem to syskonnect few weeks ago (without 
success as I see).

There is a ASIC bug in several popular motherboards (including ASUS ones)
related to TX hardware checksum.

For packets smaller that 56 bytes (payload), as UDP dns queries, the asic
generates a bad checksum making the drivers unusable for "normal" Internet
usage:

12:50:26.602458 192.168.0.10.33520 > 192.168.0.3.53: [bad udp cksum 617e!]
55764+ [45727n] A? ponti.gallimedina.net. (39) (DF) (ttl 64, id 8705, len 67)
12:50:26.733664 192.168.0.10.33515 > 192.168.0.3.53: [bad udp cksum 5e7e!]...
12:50:40.603124 192.168.0.10.33520 > 192.168.0.3.53: [bad udp cksum 617e!]...
12:50:40.743436 192.168.0.10.33523 > 192.168.0.3.53: [bad udp cksum 607e!]...
12:50:54.604568 192.168.0.10.33526 > 192.168.0.3.53: [bad udp cksum 717e!]...
12:50:54.744493 192.168.0.10.33523 > 192.168.0.3.53: [bad udp cksum 607e!]...

The only solution is to comment out
#define USE_SK_TX_CHECKSUM
in skge.c

Could be this an option in Kconfig?

--
ricardo galli GPG id C8114D34
http://mnm.uib.es/~gallir/
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:47    [W:0.035 / U:1.340 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site