linux-kernel - An error about block I/O subsystem

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Message-ID: <CAK2Ky6x+cLG3SJYWNoM+HVfg9wNRTTDZXaRWJjC6uXp=yH4ocA@mail.gmail.com>
Date:	Thu, 16 Jan 2014 15:23:00 +0800
From:	韩磊 <bonben1989@...il.com>
To:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: An error about block I/O subsystem

I have implented an I/O scheduler in Linux 2.6.But when I use fio to
test it,the kernel message often print some words,like this
"deadline_rb: forced dispatching is broken (nr_sorted=1),please report
this"

I have no idea about it,maybe my scheduler has some problems.But I
want to know why!
Thank you!
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