linux-kernel - Re: Loud "pop" coming from hard drive on reboot

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Date:	Sun, 15 Apr 2007 22:06:25 +0300
From:	auxsvr@...il.com
To:	linux-kernel@...r.kernel.org
Subject: Re: Loud "pop" coming from hard drive on reboot

On Sunday 15 April 2007 19:07, emisca wrote:
> I can confirm this, I have a Seagate Momentus 5400.3 sata disk, and it
> spins off, respin up and again off when I halt my notebook.
> I had before this disk an IBM/Hitachi one, and it doesn't have this
> behaviour.
>
> Take a look at this bug report:
> https://bugs.launchpad.net/ubuntu/+source/linux-source-2.6.17/+bug/67810
>
> There are some references and some patches against 2.6.20 kernel. This
> bug is confirmed there.
>
> Bye
>

I had the same problem with 2 WD disks on a desktop machine for 2 years, until 
I activated ACPI S3 (suspend to RAM) in the BIOS. According to this bug 
report (https://bugzilla.novell.com/show_bug.cgi?id=229210) the problem may 
be due to bad interaction between libata and the shutdown command. Tejun Heo, 
whom I thank for his support, has already proposed a patch to fix this. From 
the description there, it looks like it may also fix the reboot problem this 
thread is about.

Regards
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