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SubjectRe: Network problem with 2.6.18-mm1 ?
Sukadev Bhattiprolu wrote:
>
> I am unable to get networking to work with 2.6.18-mm1 on my system.
>
> But 2.6.18 kernel on same system works fine. Here is some info about
> the system/debug attempts. Attached are the lspci output and config.
>
> Appreciate any help. Please let me know if you need more info.
>
> Suka
>
> System info:
>
> x326, 2 CPU (AMD Opteron Processor 250)
>
> Kernel info:
>
> $ uname -a
> Linux elm3b166 2.6.18-mm1 #4 SMP PREEMPT Tue Sep 26 18:11:58 PDT 2006
> x86_64 GNU/Linux
>
> Config tokens differing between the 2.6.18 kernel that works and
> the 2.6.18-mm1 that does not are:
>
> Tokens in 2.6.18 but not in 2.6.18-mm1 config
>
> CONFIG_SCSI_FC_ATTRS=y
> CONFIG_SCSI_SATA_SIL=y
> CONFIG_SCSI_SATA=y
>
> Tokens in 2.6.18-mm1 but not in 2.6.18 config
>
> CONFIG_PROC_SYSCTL=y
> CONFIG_SATA_SIL=y
> CONFIG_ATA=y
> CONFIG_ARCH_POPULATES_NODE_MAP=y
> CONFIG_CRYPTO_ALGAPI=y
> CONFIG_MICROCODE_OLD_INTERFACE=y
> CONFIG_BLOCK=y
> CONFIG_VIDEO_V4L1_COMPAT=y
> CONFIG_ZONE_DMA=y
> CONFIG_FB_DDC=y
>
> All drivers compiled into kernel in both cases.
>
> Debug info:
>
> Checked hardware connections :-)
> (Rebooting on 2.6.18 kernel works - consistently)
>
> $ ethtool -i eth0
> driver: e1000
> version: 7.2.7-k2
> firmware-version: N/A
>
> $ ip addr
> seems fine (up, broadcasting etc)
>
> $ ip -s link
> shows no errors/drops/overruns
>
> $ ip route
> shows the correct gw
>
> $ ethtool -S eth0
>
> shows non-zero tx/rx packets/bytes but *rx_missed_errors*
> quite large (~138K) and increasing over time
>
> $ ping <own-ip-addr>
> works fine
>
> $ ping <gateway>
> no response.
>
> $ tcpdump -i eth0 host <broken-host>
>
> while pinging gateway, tcpdump shows messages like:
>
> 18:03:45.936161 arp who-has <gateway> tell <broken-host>
>
> (Config file and lspci output are attached)

how about dmesg? Perhaps it shows some valuable information.

also, since this is a networking problem, please include `ifconfig eth0` and the full
output of `ethtool eth0` and `ethtool -S eth0`

Cheers,

Auke
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