Re: re(4) incorrect checksum

On Thu, Jan 11, 2007 at 12:14:34PM +0100, Rene Ladan wrote:
Pietro Cerutti schreef:
Hi lists,

FreeBSD gahrtop.localhost 6.2-PRERELEASE FreeBSD 6.2-PRERELEASE #1:
Tue Jan 9 19:34:13 CET 2007
root@gahrtop:/usr/obj/usr/src/sys/GAHRTOP i386

CPU: Intel(R) Core(TM)2 CPU T7200 @ 2.00GHz (2000.15-MHz
686-class CPU)
Cores per package: 2

re0: <RealTek 8168B/8111B PCIe Gigabit Ethernet> port 0xc800-0xc8ff
mem 0xff2ff000-0xff2fffff irq 17 at device 0.0 on pci2

($FreeBSD: src/sys/dev/re/if_re.c,v 1.46.2.20 2006/09/21 11:08:28
yongari Exp $)

I get checksum errors on every packet I send, example:

Checksum: 0x0bc5 [incorrect, should be 0x78fe (maybe caused by
checksum offloading?)]

I think this could be the cause of some web pages (e.g. Gmail in
standard view [html view works well]) not to be displayed.

I tracked down the problem to the re(4) driver just because wlan works
good...

Any ideas?

I'm also seeing these www problems with my re(4) card (chipid
0x816810ec), see
http://lists.freebsd.org/pipermail/freebsd-current/2006-December/068333.html


Does your re(4) also work when you disable checksum offload?

Wireless is ok.

Thanx,

Regards,
Rene
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Regards,
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