Re: [PATCH] abort secondary CPU bring-up gracefully if do_boot_cpu timed out on cpu_callin_mask

[Ingo Molnar]

* Igor Mammedov <imammedo@xxxxxxxxxx> wrote:

> Master CPU may timeout before cpu_callin_mask is set and cancel
> booting CPU, but being onlined CPU still continues to boot, sets
> cpu_active_mask (CPU_STARTING notifiers) and spins in
> check_tsc_sync_target() for master cpu to arrive. Following attempt
> to online another cpu hangs in stop_machine, initiated from here:

The changelog needs to prominently contain a description of the 
practical relevance of this patch: has the hang triggered on any 
system and under what circumstances, and did the patch resolve the 
hang, etc.?

Thanks,

	Ingo
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