Re: SCSI discover order strangeness [Bug 8412] New:CONFIG_MOUSE_PS2 makes RAID detection fail

From: Neil Brown
Date: Mon May 07 2007 - 00:23:40 EST


On Tuesday May 1, greg@xxxxxxxxx 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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