linux-kernel - Re: "irq/matrix: Spread interrupts on allocation" breaks nouveau in mainline kernel

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Message-ID: <1516850941.6785.7.camel@gmx.de>
Date:   Thu, 25 Jan 2018 04:29:01 +0100
From:   Mike Galbraith <efault@....de>
To:     Lyude Paul <lyude@...hat.com>,
        "Ghannam, Yazen" <Yazen.Ghannam@....com>,
        Thomas Gleixner <tglx@...utronix.de>
Cc:     "hpa@...or.com" <hpa@...or.com>,
        "keith.busch@...el.com" <keith.busch@...el.com>,
        "mingo@...nel.org" <mingo@...nel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Borislav Petkov <bp@...en8.de>
Subject: Re: "irq/matrix: Spread interrupts on allocation" breaks nouveau in
 mainline kernel

On Wed, 2018-01-24 at 15:02 -0500, Lyude Paul wrote:
> Almost forgot to mention: I came across this patch because reverting it
> locally on the mainline kernel makes request_irq() behave normally (it doesn't
> attempt to allocate the same vector twice anymore) and nouveau starts doing
> suspend/resume correctly again

Ah, someone already hunted down my resume woes.  Yup, reverting
$subject fixed up my sole reason to use nouveau (to be able to _resume_
as well as suspend:).  If anyone needs a lab rat, just holler.

	-Mike