Re: linux-next: build failure after merge of the perf tree

[Mark Brown]

On Mon, Jan 19, 2026 at 04:37:12PM +0000, James Clark wrote:
> On 19/01/2026 4:09 pm, Mark Brown wrote:

> > After merging the perf tree, today's linux-next build (arm64 perf)
> > failed like this:

> > Exception processing /tmp/next/perf/pmu-events/arch/arm64/arm/cortex-a510/pmu.json

> Do you have a clean checkout? a66f6242fbf52 removes this file and at the
> same time removes the definition from common-and-microarch.json. I think you
> would get this build error if cortex-a510/pmu.json exists as a stale file
> with that commit applied.

No, all the -next builds are done incrementally so the working tree will
start with whatever the last commit that got built was.  This would also
break bisection cases...

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