Messages in this thread | | | Date | Thu, 6 Mar 2014 08:08:32 +0100 | From | Ingo Molnar <> | Subject | Re: [PATCH] abort secondary CPU bring-up gracefully if do_boot_cpu timed out on cpu_callin_mask |
| |
* Igor Mammedov <imammedo@redhat.com> 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
| |