[Bug 11045] Bug in MPT Fusion 2.6.26-rc7 unbootable

[bugme-daemon@bugzilla.kernel.org]

http://bugzilla.kernel.org/show_bug.cgi?id=11045





------- Comment #8 from anonymous@kernel-bugs.osdl.org  2008-07-08 10:24 -------
Reply-To: James.Bottomley@HansenPartnership.com

On Tue, 2008-07-08 at 10:51 -0600, Bjorn Helgaas wrote:
> On Tuesday 08 July 2008 08:08:46 am James Bottomley wrote:
> > That said, this line:
> > 
> > mptbase: ioc0: ERROR - Doorbell ACK timeout (count=4999), IntStatus=80000009!
> > 
> > is absolutely characteristic of a lost interrupt.
> > 
> > With the current LSI driver, we have two possible causes for this.  One
> > is the usual ACPI screw up that we never seem to be able to fix.
> 
> Which ACPI screw up is that?  And what's the usual recipe?

The usual screw up where subtle ACPI breakage from release to release
causes some IRQs to get misrouted.

Usually you start with noacpi and cycle through the pci routing options

> I know about the ancient "pci=routeirq" recipe, but as far as I know,
> there are no current problems that require that.

If you actually read this bug report, you'll see there was a message

ACPI: Resource is not an IRQ entry

Just before the fusion IRQ failed to get delivered, so I think it's a
good indicator that there *are* ACPI problems ...

James


-- 
Configure bugmail: http://bugzilla.kernel.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the assignee for the bug, or are watching the assignee.