Messages in this thread | | | Subject | Re: "irq/matrix: Spread interrupts on allocation" breaks nouveau in mainline kernel | From | Lyude Paul <> | Date | Wed, 24 Jan 2018 12:49:10 -0500 |
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Hi, please ignore the warning: it happens before and after the regressing commit (I didn't actually mean to include it on the log I gave here, whoops). As for how I determined nouveau is getting assigned the same IRQ vector as another device, I checked using /sys/kernel/debug/irq. Additionally; when nouveau does initialize properly after resume (e.g. after reverting this patch) I see it get assigned a seperate vector from the other devices.
On Wed, 2018-01-24 at 13:52 +0100, Thomas Gleixner wrote: > On Tue, 23 Jan 2018, Lyude Paul wrote: > > > JFYI: I confirmed this patch is definitely broken. I'm seeing nouveau get > > assigned the same MSI vector as another device on the system, which would > > explain why interrupts suddenly stop working. I'll keep looking into it > > further > > tomorrow. > > How did you determine that it is the same MSI vector as another device? > > Thanks, > > tglx > -- Cheers, Lyude Paul
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