Re: kernel page fault panic in yesterday's current ( nfs_nget -> vfs_hash_insert -> bcmp )

From: Bjoern A. Zeeb (bzeeb-lists_at_lists.zabbadoz.net)
Date: 03/18/05

  • Next message: Ian FREISLICH: "Re: device pcic and card" 
    Date: Fri, 18 Mar 2005 06:53:38 +0000 (UTC)
To: Jonas <jonas.de.buhr@gmx.net>

    On Fri, 18 Mar 2005, Jonas wrote:

    Hi,

    > On Thu, 17 Mar 2005 18:11:25 -0800 (PST)
    > Don Lewis <truckman@FreeBSD.org> wrote:
    >
    > > I got this panic when running cvs to cvs update my /usr/ports tree in
    > > preparation for updating to today's kernel, world, and ports.
    >
    > > I'm going to go ahead with the kernel and world update and see if the
    > > problem is reproduceable afterwards.
    >
    > i also get a 'lock order reversal' but already at boot time.
    > i'm using the bfe driver from the sources of Fri Mar 18 03:06:05 CET 2005
    ...
    > lock order reversal
    > 1st 0xc1dde8a0 rtentry (rtentry) @ /usr/src/sys/netinet/if_ether.c:445
    > 2nd 0xc1be1364 bfe0 (network driver) @ /usr/src/sys/dev/bfe/if_bfe.c:1341

    this is one is the same like with sk, bge, ... seen lately. As already
    said - I had been told there is work in progress.
    I'll add it to 'the LOR page'[1] later today.

    [1] see: http://www.freebsd.org/doc/faq/troubleshoot.html#LOCK-ORDER-REVERSAL

    For debugging of the page fault you might want to setup serial console:
    http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/serialconsole-setup.html
    and save the output (minicom -C .., cu .. | tee -a ... | just paste). 

    -- 
Bjoern A. Zeeb				bzeeb at Zabbadoz dot NeT
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