diff options
| -rw-r--r-- | src/vnet/session/session.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/src/vnet/session/session.h b/src/vnet/session/session.h index c2984198bf7..fe8a85cd5f4 100644 --- a/src/vnet/session/session.h +++ b/src/vnet/session/session.h @@ -676,6 +676,17 @@ ho_session_alloc (void) s = session_alloc (0); s->session_state = SESSION_STATE_CONNECTING; s->flags |= SESSION_F_HALF_OPEN; + /* Not ideal. Half-opens are only allocated from main with worker barrier + * but can be cleaned up, i.e., session_half_open_free, from main without + * a barrier. In debug images, the free_bitmap can grow while workers peek + * the sessions pool, e.g., session_half_open_migrate_notify, and as a + * result crash while validating the session. To avoid this, grow the bitmap + * now. */ + if (CLIB_DEBUG) + { + session_t *sp = session_main.wrk[0].sessions; + clib_bitmap_validate (pool_header (sp)->free_bitmap, s->session_index); + } return s; } |