Vlad, This is the fix for http://bugs.openfabrics.org/bugzilla/show_bug.cgi?id=2367
Could you apply the patch to OFED-3.5 daily build? Without the fix we cannot test the NES driver with OFED-3.5-RC1. Thank you, Tatyana -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Tatyana Nikolova Sent: Tuesday, August 07, 2012 5:47 PM To: [email protected] Cc: [email protected] Subject: [ewg] [PATCH] RDMA/ucma.c: Different fix for ucma context uid=0, causing iWarp RDMA applications to fail in connection establishment Fix for ucma context uid=0, causing iWarp RDMA applications to fail in connection establishment. This is a new patch addressing the librdmacm segfault when RDMA_CM_EVENT_ESTABLISHED event shows up with evt->id_priv = NULL In the ucma_event_handler(), ctx->file->mut is moved up to prevent race conditions and protect from assigning zero ucma ctx->uid to asynchronously generated events. Signed-off-by: Tatyana Nikolova <[email protected]> Signed-off-by: Sean Hefty <[email protected]> --- drivers/infiniband/core/ucma.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/drivers/infiniband/core/ucma.c b/drivers/infiniband/core/ucma.c index 8002ae6..88c50d2 100644 --- a/drivers/infiniband/core/ucma.c +++ b/drivers/infiniband/core/ucma.c @@ -267,6 +267,7 @@ static int ucma_event_handler(struct rdma_cm_id *cm_id, if (!uevent) return event->event == RDMA_CM_EVENT_CONNECT_REQUEST; + mutex_lock(&ctx->file->mut); uevent->cm_id = cm_id; ucma_set_event_context(ctx, event, uevent); uevent->resp.event = event->event; @@ -277,7 +278,6 @@ static int ucma_event_handler(struct rdma_cm_id *cm_id, ucma_copy_conn_event(&uevent->resp.param.conn, &event->param.conn); - mutex_lock(&ctx->file->mut); if (event->event == RDMA_CM_EVENT_CONNECT_REQUEST) { if (!ctx->backlog) { ret = -ENOMEM; -- 1.7.4.2 _______________________________________________ ewg mailing list [email protected] http://lists.openfabrics.org/cgi-bin/mailman/listinfo/ewg _______________________________________________ ewg mailing list [email protected] http://lists.openfabrics.org/cgi-bin/mailman/listinfo/ewg
