Vitaly Kuznetsov <vkuzn...@redhat.com> writes: > A hang on CPU0 onlining after a preceding offlining is observed. Trace > shows that CPU0 is stuck in check_tsc_sync_target() waiting for source > CPU to run check_tsc_sync_source() but this never happens. Source CPU, > in its turn, is stuck on synchronize_sched() which is called from > native_cpu_up() -> do_boot_cpu() -> unregister_nmi_handler(). > > Fix the issue by moving unregister_nmi_handler() from do_boot_cpu() to > native_cpu_up() after cpu onlining is done. > > Signed-off-by: Vitaly Kuznetsov <vkuzn...@redhat.com> > --- > It's been awile since my v1 submission, no comments so far. Resending.
Sorry, but ping? I haven't received a single comment on this since the initial submission on June, 26 - is it so bad? :-) -- Vitaly
