From: Andrew Morton <akpm@linux-foundation.org>
To: linux-ide@vger.kernel.org
Cc: bugme-daemon@bugzilla.kernel.org, syed.azam@hp.com
Subject: Re: [Bugme-new] [Bug 10379] New: when unloading ahci driver on ATI SB700 controller and Western digital cavier 160 GB Hard drive cache is not flushed to the media
Date: Tue, 1 Apr 2008 23:04:21 -0700 [thread overview]
Message-ID: <20080401230421.04a4592e.akpm@linux-foundation.org> (raw)
In-Reply-To: <bug-10379-10286@http.bugzilla.kernel.org/>
On Tue, 1 Apr 2008 22:41:06 -0700 (PDT) bugme-daemon@bugzilla.kernel.org wrote:
> http://bugzilla.kernel.org/show_bug.cgi?id=10379
>
> Summary: when unloading ahci driver on ATI SB700 controller and
> Western digital cavier 160 GB Hard drive cache is not
> flushed to the media
> Product: Drivers
> Version: 2.5
> KernelVersion: 2.6.23.11
> Platform: All
> OS/Version: Linux
> Tree: Mainline
> Status: NEW
> Severity: normal
> Priority: P1
> Component: Other
> AssignedTo: drivers_other@kernel-bugs.osdl.org
> ReportedBy: syed.azam@hp.com
>
>
> Latest working kernel version:unknown
> Earliest failing kernel version:2.6.23.11
> Distribution:vanilla kernel
> Hardware Environment: ATI SB700 and Western digital 160 GB HD in legacy ide
> mode using ahci/atiixp
> Software Environment: AHCI
> Problem Description:
> rmmod ahci (no syncronization of sda)
> modprobe ahci (drive is reset)
>
> the painful soloution is to rmmod and modprobe ahci driver
>
> The need to remove the ahci module is there because some small data writes are
> not flushed to the media even after sync command is issued. if Reboot is issued
> it works but if you lose power or suddenly switch off using power button the
> writes which allegdley already returned success are not yet commited to media.
>
> MS Windows does not have this issue.
>
> HD experts told me that comreset is needed.
>
>
>
>
>
>
> Steps to reproduce:
>
parent reply other threads:[~2008-04-02 6:04 UTC|newest]
Thread overview: expand[flat|nested] mbox.gz Atom feed
[parent not found: <bug-10379-10286@http.bugzilla.kernel.org/>]
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