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

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Message-ID: <17982.43426.945725.747958@notabene.brown>
Date:	Mon, 7 May 2007 14:22:58 +1000
From:	Neil Brown <neilb@...e.de>
To:	Greg KH <greg@...ah.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: SCSI discover order strangeness [Bug 8412] New:
	CONFIG_MOUSE_PS2 makes RAID detection fail

On Tuesday May 1, greg@...ah.com wrote:
> 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.
> 

OK, thanks.  It turns out they are USB drives, so maybe it is a USB
problem, or maybe their expectations are wrong.

It also turns out that the email->bugzilla gateway completely failed
for me in trying to deal with this bug.  Ho hum.

NeilBrown
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