Fix: allocate ts_end in ringbuffer shared memory

[lttng-ust.git] / libringbuffer / ring_buffer_backend.c

diff --git a/libringbuffer/ring_buffer_backend.c b/libringbuffer/ring_buffer_backend.c
index a0ef74461bd12606b9d3bd6eaa14ac2ae9f600ab..431b8eae949250c1d51bbbe981aac84c42ee5edf 100644 (file)
--- a/libringbuffer/ring_buffer_backend.c
+++ b/libringbuffer/ring_buffer_backend.c
@@ -341,6 +341,9 @@ int channel_backend_init(struct channel_backend *chanb,
        shmsize += sizeof(struct commit_counters_hot) * num_subbuf;
        shmsize += offset_align(shmsize, __alignof__(struct commit_counters_cold));
        shmsize += sizeof(struct commit_counters_cold) * num_subbuf;
+       /* Sampled timestamp end */
+       shmsize += offset_align(shmsize, __alignof__(uint64_t));
+       shmsize += sizeof(uint64_t) * num_subbuf;
 
        if (config->alloc == RING_BUFFER_ALLOC_PER_CPU) {
                struct lttng_ust_lib_ring_buffer *buf;