From 883c87320594878c1276e5ea4d0a4ab73f611542 Mon Sep 17 00:00:00 2001 From: Liguang Li Date: Thu, 22 Jun 2017 16:56:29 +0800 Subject: [PATCH] Fix: Expand the shmobj size for the sequence number This patch fixes a bug which was introduced by: 1ff31389b ("Generate and export the sequence number") Signed-off-by: Liguang Li Signed-off-by: Mathieu Desnoyers --- libringbuffer/ring_buffer_backend.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/libringbuffer/ring_buffer_backend.c b/libringbuffer/ring_buffer_backend.c index 961f118a..2a181ef8 100644 --- a/libringbuffer/ring_buffer_backend.c +++ b/libringbuffer/ring_buffer_backend.c @@ -118,7 +118,7 @@ int lib_ring_buffer_backend_allocate(const struct lttng_ust_lib_ring_buffer_conf bufb->buf_rsb.id = subbuffer_id(config, 0, 1, 0); /* Allocate subbuffer packet counter table */ - align_shm(shmobj, __alignof__(struct lttng_ust_lib_ring_buffer_backend_subbuffer)); + align_shm(shmobj, __alignof__(struct lttng_ust_lib_ring_buffer_backend_counts)); set_shmp(bufb->buf_cnt, zalloc_shm(shmobj, sizeof(struct lttng_ust_lib_ring_buffer_backend_counts) * num_subbuf)); @@ -333,6 +333,8 @@ int channel_backend_init(struct channel_backend *chanb, shmsize += sizeof(struct lttng_ust_lib_ring_buffer_backend_pages) * num_subbuf_alloc; shmsize += offset_align(shmsize, __alignof__(struct lttng_ust_lib_ring_buffer_backend_subbuffer)); shmsize += sizeof(struct lttng_ust_lib_ring_buffer_backend_subbuffer) * num_subbuf; + shmsize += offset_align(shmsize, __alignof__(struct lttng_ust_lib_ring_buffer_backend_counts)); + shmsize += sizeof(struct lttng_ust_lib_ring_buffer_backend_counts) * num_subbuf; /* Per-cpu buffer size: control (after backend) */ shmsize += offset_align(shmsize, __alignof__(struct commit_counters_hot)); shmsize += sizeof(struct commit_counters_hot) * num_subbuf; -- 2.34.1