Re: bug report: Sun Blade 100 kernel panics during boot under 3.0.3

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On Wed, Aug 24, 2011 at 03:50:53PM -0400, Jim Faulkner wrote:
> On Mon, Aug 22, 2011 at 05:36:02PM -0700, David Miller wrote:
> 
> > Unfortunately we need the very first crash message that happens, but
> > even your first snapshot is after other crashes have occurred.
> > 
> > You'll need to build a kernel with CONFIG_BOOT_PRINTK_DELAYED enabled
> > and then you can boot with boot_delay=xxx (where "xxx" is something
> > like 100, it's in milliseconds) to slow down the message printing so
> > that you can capture the first message cleanly.
> 
> OK, I've attached several images of the kernel panic w/ boot_delay to
> the bug:
> 
> https://bugzilla.kernel.org/show_bug.cgi?id=41522

https://bugzilla.kernel.org/attachment.cgi?id=70042 (the third image) looks
like it first finds two address space collisions with ali7101... but they're
both listed at 0000:00:03.0 (i.e. not a collision of two different PCI
devices but one and the same), and that quirk code in drivers/pci/quirks.c
is ancient (2005, 2007).

The next problem is a WARN about 0000:00:07.0 being added twice, but latest
change in that sabre_* function seems to be a generic OF matching code
change, so that's not immediately suspicious either.

It looks as if something is generally screwing with the PCI detection logic
from the get-go.

Do you happen to have a working kernel to fall back to, and then do a
git bisect?

-- 
     2. That which causes joy or happiness.
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