Multipath routing changes? "[kernel] Badness in dst_release at include/net/dst.h:154"

From: Mike Kirk (mike.kirk_at_sympatico.ca)
Date: 09/07/05

  • Next message: Zhang, Yanmin: "RE: [PATCH 2/3 htlb-fault] Demand faulting for hugetlb" 
    To: <linux-kernel@vger.kernel.org>
Date:	Tue, 6 Sep 2005 23:17:34 -0400

    Hi all,

    This is regarding an external patch to enable routing over multiple network
    connections, but I'm wondering if it's revealing another problem:

    Up to 2.6.10 and the corresponding patch here:
    (http://www.ssi.bg/~ja/#routes-2.6) allowed me to combine cable and DSL
    Internet connections. 2.6.11/12/13 (stock kernel from kernel.org + patch
    from that URL) all give errors such as (from 2.6.13):

            Sep 6 22:51:08 [kernel] Badness in dst_release at
    include/net/dst.h:154
                - Last output repeated 15 times -

    ...with occasional lines like this:

            Sep 6 22:54:02 [kernel] [<c03748ac>] __kfree_skb+0xec/0x100

    Other than the error messages the system seems to run fine, but it only uses
    one of the two Internet connections. Rebooting to 2.6.10 makes the problem
    go away and the traffic is balanced over both connections again.

    I've emailed the patch maintainer and he mentioned recent kernels have
    change multipath routing code and few other people have reported this
    problem. I realize since it's an external patch it's not your job to figure
    it out, but I thought I'd post my log entries in case I'm seeing a legit
    kernel error message.

    Regards,

       Mike

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