On 09/07/15 09:26, Chao Peng wrote: > For booting cpu, the socket number is not needed to be 0 so > it needs to be computed by cpu number. > > For secondary cpu, phys_proc_id is not valid in CPU_PREPARE > notifier(cpu_smpboot_alloc), so cpu_to_socket(cpu) can't be used. > Instead, pre-allocate secondary_cpu_mask in cpu_smpboot_alloc() > and later consume it in smp_store_cpu_info(). > > This patch also change socket_cpumask type from 'cpumask_var_t *' > to 'cpumask_t **' so that smaller NR_CPUS works. > > Reported-by: Boris Ostrovsky <boris.ostrov...@oracle.com> > Signed-off-by: Chao Peng <chao.p.p...@linux.intel.com>
I have thrown this patch into my XenServer upstream testing branch, to get a wide coverage of servers. (So far, on a random sample of 24 servers from our testing pool, not a single one has successfully booted with the original bug present.) ~Andrew _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel
