Re: [PATCH] link scsi_debug later

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On Fri, 17 Mar 2006 21:29:24 -0800 Andrew Morton wrote:

> "Randy.Dunlap" <rdunlap@xxxxxxxxxxxx> wrote:
> >
> > From: Randy Dunlap <rdunlap@xxxxxxxxxxxx>
> > 
> > Link scsi-debug driver after SATA so that scsi-debug does not
> > interfere with real SCSI device ordering.
> > Yes, I was bitten by this.
> > 
> 
> What does "bitten" mean?

It means that I got the usual "VFS: could not find root filesystem on
device (8,8)"  (or however it is spelled).
Oh, and that I had to add netconsole to see what was causing it,
but that is easy enough to do.

> Is this a regression?

It's probably been like this ever since SATA was added (libata)
and only happens if SCSI_DEBUG=y (so I changed it to =m).
I can't say that it's a regression since this occurred on a new
machine.

> If so, relative to which release?
> 
> Potentially this sort of thing can have serious effects.  Like, non-booting
> machines.  Is that the case here?

Yes, it was.

> Is this 2.6.16 material?

Well... I would say yes, I don't think it's too risky for that.

> Stuff like that, thanks.

OK, I'll try to be more verbose in the future (on patches).

---
~Randy
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