Subject: Fw: [Bug 16483] New: linux 2.6.30 kernel update to 2.6.34 appear networking's bug

From: Stephen Hemminger <[email-masked]>
Date: Wed, 4 Aug 2010 09:59:32 -0700

Cryptic bug report, more info in bugzilla comments.

Begin forwarded message:

Date: Fri, 30 Jul 2010 07:57:46 GMT
From: [email-masked]
To: [email-masked]
Subject: [Bug 16483] New: linux 2.6.30 kernel update to 2.6.34 appear networking's bug

https://bugzilla.kernel.org/show_bug.cgi?id=16483

           Summary: linux 2.6.30 kernel update to 2.6.34 appear
                    networking's bug
           Product: Networking
           Version: 2.5
    Kernel Version: 2.6.34
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: high
          Priority: P1
         Component: IPV4
        AssignedTo: [email-masked]
        ReportedBy: [email-masked]
        Regression: No

linux 2.6.30 kernel update to 2.6.34 appear networking's bug
my server machine install linux 5.5 and 2.6.30 kernel,it has two NIC:eth0 and
eth1.
eth0 and eth1 have different's ip and gateway .all configuration is normal.i
can ping both the eth0 and eth1 .but,when i update to kernel 2.6.34,i can't
ping both the eth0 and eth1,only can ping  the eth0 when the default gw is
eth0's gw.when i change the default gw to eth1's gw ,i can ping the eth1
only,eth0 can't ping .Very strange!
when i use the kernel 2.6.30 to boot the system ,all is normal ,i can ping both
eth0 and eth1 .but when i use the kernel 2.6.34,one of the ethX is normal only.
   the follows show how i update 2.6.30 to 2.6.34:
mv linux-2.6.34.tar.bz2  /usr/src
cd /usr/src/
tar -xvf linux-2.6.34.tar.bz2
ln -s /usr/src/linux-2.6.34  /usr/src/linux 

cd linux
make menuconfig 
#cp the boot initilization configuration to  /usr/src/linux/.config
cp /boot/config-2.6.18-194.el5 /usr/src/linux/.config
make menuconfig

# choose ip range      network -> Netfilter > Core NetFilter >iprange
select:
（1）General setup ---> Prompt for development and/or incomplete code/drivers。 
（2） Networking ---> Networking options ---> Network packet filtering framework
(Netfilter) ---> Core Netfilter Configuration ---> 和 IP: Netfilter
Configuration ---> (select all)
vi .config
CONFIG_NF_CONNTRACK_IPV4=y
CONFIG_SYSFS_DEPRECATED_V2=y

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