From 8dc63c8824fc1a00c873c16e8a16a14fca7c8cca Mon Sep 17 00:00:00 2001 From: Gaurav Yadav Date: Sun, 21 May 2017 12:31:29 +0530 Subject: glusterd : volume profile command on one of the node crashes glusterd When volume profile command is issued on one of the node glusterd crashes. Its a race condition which may hit when profile command and status command is being executed from node A and node B respectively. While doing so event GD_OP_STATE_BRICK_OP_SENT/GD_OP_STATE_BRICK_COMMITTED is being triggered. As handling of event is not thread safe, hence context got modify and glusterd crashes. With the fix now we are validating the context before using it. Change-Id: Ic07c3cdc5644677b0e40ff0fac6fcca834158913 BUG: 1452956 Signed-off-by: Gaurav Yadav Reviewed-on: https://review.gluster.org/17350 Smoke: Gluster Build System CentOS-regression: Gluster Build System Reviewed-by: Samikshan Bairagya NetBSD-regression: NetBSD Build System Reviewed-by: Atin Mukherjee --- xlators/mgmt/glusterd/src/glusterd-op-sm.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) (limited to 'xlators') diff --git a/xlators/mgmt/glusterd/src/glusterd-op-sm.c b/xlators/mgmt/glusterd/src/glusterd-op-sm.c index 1a12b0e7160..9b68967f445 100644 --- a/xlators/mgmt/glusterd/src/glusterd-op-sm.c +++ b/xlators/mgmt/glusterd/src/glusterd-op-sm.c @@ -7606,7 +7606,7 @@ out: static int glusterd_op_ac_rcvd_brick_op_acc (glusterd_op_sm_event_t *event, void *ctx) { - int ret = 0; + int ret = -1; glusterd_op_brick_rsp_ctx_t *ev_ctx = NULL; char *op_errstr = NULL; glusterd_op_t op = GD_OP_NONE; @@ -7617,13 +7617,14 @@ glusterd_op_ac_rcvd_brick_op_acc (glusterd_op_sm_event_t *event, void *ctx) xlator_t *this = NULL; this = THIS; - GF_ASSERT (this); - GF_ASSERT (event); - GF_ASSERT (ctx); + GF_VALIDATE_OR_GOTO ("glusterd", this, out); + GF_VALIDATE_OR_GOTO (this->name, event, out); + GF_VALIDATE_OR_GOTO (this->name, ctx, out); ev_ctx = ctx; + GF_VALIDATE_OR_GOTO(this->name, ev_ctx, out); req_ctx = ev_ctx->commit_ctx; - GF_ASSERT (req_ctx); + GF_VALIDATE_OR_GOTO (this->name, req_ctx, out); op = req_ctx->op; op_ctx = glusterd_op_get_ctx (); -- cgit