This patch allocates the memory used by the ts_end field added by commit 6c737d05. When allocating lots of subbuffer for a channel (512 or more), zalloc_shm() will fail to allocate all the objects because the allocated memory map didn't take account the newly added field.
Signed-off-by: Gabriel-Andrew Pollo-Guilbert <gabriel.pollo-guilb...@efficios.com> --- libringbuffer/ring_buffer_backend.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/libringbuffer/ring_buffer_backend.c b/libringbuffer/ring_buffer_backend.c index a0ef7446..431b8eae 100644 --- 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; -- 2.21.0 _______________________________________________ lttng-dev mailing list lttng-dev@lists.lttng.org https://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev