linux-kernel - Re: SCSI discover order strangeness [Bug 8412] New: CONFIG_MOUSE

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Message-ID: <20070502033102.GA7890@kroah.com>
Date:	Tue, 1 May 2007 20:31:02 -0700
From:	Greg KH <greg@...ah.com>
To:	Neil Brown <neilb@...e.de>
Cc:	bugme-daemon@...zilla.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: SCSI discover order strangeness [Bug 8412] New:
	CONFIG_MOUSE_PS2 makes RAID detection fail

On Tue, May 01, 2007 at 07:46:36PM +1000, Neil Brown wrote:
> 
> My first thought was that the new threaded device discovery was
> allowing md init to happen before scsi discovery was complete.  Maybe
> the presence of CONFIG_MOUSE_PS2 makes some bit go faster...
> 
> However 
>   # CONFIG_SCSI_SCAN_ASYNC is not set
> 
> so maybe not...
> 
> Greg (or anyone else reading): you know about this threaded
> discovery.. could it allow some discovery to complete after userspace
> has started, and does CONFIG_SCSI_SCAN_ASYNC affect it?

This kind of threaded discovery is different from the bus-level threaded
probing that I originally proposed a while back, and then later
retracted due to bugs.

So this is just a scsi thing, I know nothing about it.

thanks,

greg k-h
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