Re: [PATCH 0/6] perf/x86/intel/pt: Fix tracing across kexec, kdump and suspend

[Peter Zijlstra]

On Mon, Nov 02, 2026 at 09:40:33AM +0200, Adrian Hunter wrote:
> Hi
> 
> Intel PT writes trace data directly to physical memory, so tracing must
> be stopped whenever the trace buffers or the hardware state describing
> them can no longer be relied on.  This series fixes several cases where
> that does not currently happen:

Same is true for PEBS, no? I also saw that AMD/IBS is already
registering a syscore handler.

Perhaps it should be a perf wide thing, than than having individual bits
and pieces do their own thing?