From: Sam Bingner <sam@bingner.com>
To: Martin Wilck <mwilck@arcor.de>,
Francis Moreau <francis.moro@gmail.com>,
"linux-raid@vger.kernel.org" <linux-raid@vger.kernel.org>
Subject: Re: MD array keeps resyncing after rebooting
Date: Sat, 3 Aug 2013 00:08:24 +0000 [thread overview]
Message-ID: <CE216D89.13F0C%sam@bingner.com> (raw)
In-Reply-To: <51FBF830.5060606@arcor.de>
On 8/2/13 8:19 AM, "Martin Wilck" <mwilck@arcor.de> wrote:
>On 08/02/2013 02:46 PM, Francis Moreau wrote:
>
>>Please tell me if you can find something suspicous.
>
>The spec says that the VD GUID consists of the vendor ID ("LSI " in
>your case), controller type (the controller's PCI ID,
>8086:1d60:0000:0000), the 4-byte time stamp, and a "random number"
>(0000 1450). Strangely, I also have an LSI fake RAID and it uses the
>same random number. It even generated the same number through several
>RAID creations. Seems to be a truly strange random number generator :-)
>
Perhaps the author reads xkcd and wrote something similar to the following:
int getRandomNumber()
{
return 0x1450; // chosen by fair dice roll.
// guaranteed to be random.
}
http://xkcd.com/221/
Sam
next prev parent reply other threads:[~2013-08-03 0:08 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-23 9:46 MD array keeps resyncing after rebooting Francis Moreau
2013-07-23 12:55 ` Francis Moreau
2013-07-23 18:52 ` Martin Wilck
2013-07-23 18:52 ` Martin Wilck
2013-07-23 20:01 ` Francis Moreau
2013-07-23 21:21 ` Martin Wilck
2013-07-24 4:32 ` Francis Moreau
2013-07-24 13:50 ` Francis Moreau
2013-07-25 18:58 ` Martin Wilck
2013-07-25 19:06 ` Martin Wilck
2013-07-25 20:23 ` Francis Moreau
2013-07-29 15:46 ` Francis Moreau
2013-07-25 20:21 ` Francis Moreau
2013-07-31 19:36 ` Francis Moreau
2013-08-01 13:28 ` Francis Moreau
2013-08-01 18:15 ` Martin Wilck
2013-08-02 12:49 ` Francis Moreau
[not found] ` <CAC9WiBhGyE=OJdSeL_OsPxtirhJ2=3WRsk=uBPiOTzMjBCf-dA@mail.gmail.com>
2013-08-02 18:19 ` Martin Wilck
2013-08-03 0:08 ` Sam Bingner [this message]
2013-08-03 11:02 ` Francis Moreau
2013-08-08 7:18 ` Francis Moreau
2013-08-24 18:54 ` Martin Wilck
2013-08-26 7:44 ` Francis Moreau
2013-08-31 19:23 ` Francis Moreau
2013-09-01 17:05 ` Martin Wilck
2013-08-05 6:08 ` NeilBrown
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