BZ738242: tweak memory allocation estimation logic

* runtime/transport/relay_v2.c (_stp_transport_data_fs_init):
  In BULK_MODE, stop overestimating the number of pages we will
  need: it's num_online_cpus rather than num_possible_cpus.

diff --git a/runtime/transport/relay_v2.c b/runtime/transport/relay_v2.c
index ff621a4896afe0a3effbf16870bc72189c9831b8..763436de86f50fa0bc42cad011ced01b94a65852 100644 (file)
--- a/runtime/transport/relay_v2.c
+++ b/runtime/transport/relay_v2.c
@@ -305,7 +305,7 @@ static int _stp_transport_data_fs_init(void)
        /* Create "trace" file. */
        npages = _stp_subbuf_size * _stp_nsubbufs;
 #ifdef STP_BULKMODE
-       npages *= num_possible_cpus();
+       npages *= num_online_cpus();
 #endif
        npages >>= PAGE_SHIFT;
        si_meminfo(&si);