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Date:      Sat, 26 May 2007 10:04:46 +0000 (UTC)
From:      "Bjoern A. Zeeb" <bzeeb-lists@lists.zabbadoz.net>
To:        Joao Barros <joao.barros@gmail.com>
Cc:        freebsd-fs@freebsd.org, freebsd-current <freebsd-current@freebsd.org>, Pawel Jakub Dawidek <pjd@freebsd.org>
Subject:   Re: ZFS: LOR in dbuf.c
Message-ID:  <20070526100322.N13311@maildrop.int.zabbadoz.net>
In-Reply-To: <70e8236f0705260236x527b0484m96bc77ae51d8b287@mail.gmail.com>
References:  <70e8236f0705260236x527b0484m96bc77ae51d8b287@mail.gmail.com>

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On Sat, 26 May 2007, Joao Barros wrote:

> Hi Pawel,
>
> I upgraded my sources last night (just before your 2 commits) and now
> I get this constant LOR every 5 seconds:
>
> lock order reversal:
> 1st 0xc7b90c20 zfs:&dr->dt.di.dr_mtx (zfs:&dr->dt.di.dr_mtx) @
> /usr/src/sys/modules/zfs/../../contrib/opensolaris/uts/common/fs/zfs/dbuf.c:1866
> 2nd 0xc48e17e4 zfs:&db->db_mtx (zfs:&db->db_mtx) @
> /usr/src/sys/modules/zfs/../../contrib/opensolaris/uts/common/fs/zfs/dbuf.c:1888

please check http://sources.zabbadoz.net/freebsd/lor.html and follow
the instruction there. Read to the end of the page.

-- 
Bjoern A. Zeeb				bzeeb at Zabbadoz dot NeT



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