linux-kernel - Re: ACPI Regression on Dell E1501

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Message-ID: <adair9g2ctk.fsf@cisco.com>
Date:	Fri, 22 Jun 2007 09:06:47 -0700
From:	Roland Dreier <rdreier@...co.com>
To:	trenn@...e.de
Cc:	Tim Gardner <tim.gardner@...onical.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Chuck Ebbert <cebbert@...hat.com>, lenb@...nel.org,
	linux-acpi@...r.kernel.org, linux-kernel@...r.kernel.org,
	ebiederm@...ssion.com
Subject: Re: ACPI Regression on Dell E1501

 > pci=nomsi let the machine still boot.
 > 
 > I tried a bit and I think I got it, for me it's this one:
 > 
 > commit 78b7611c4a1e3ff008abc4751b566cb533d68f3d

Really??  That's "msi: mask the msix vector before we unmap it" and
A) it looks *really* obviously correct and B) it should only have an
effect if a driver using MSI-X releases an IRQ.

What testing did you do to pick out that change?  Does your system
work OK with just that patch reverted?

 - R.
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