p = m->base + (j << m->log2_page_size) + i * alloc_size;
p += bm->ext_hdr_size;
+ /*
+ * Waste 1 buffer (maximum) so that 0 is never a valid buffer index.
+ * Allows various places to ASSERT (bi != 0). Much easier
+ * than debugging downstream crashes in successor nodes.
+ */
+ if (p == m->base)
+ continue;
+
vlib_buffer_copy_template ((vlib_buffer_t *) p, &bp->buffer_template);
bi = vlib_get_buffer_index (vm, (vlib_buffer_t *) p);
VLIB_EARLY_CONFIG_FUNCTION (vlib_buffers_configure, "buffers");
+#if VLIB_BUFFER_ALLOC_FAULT_INJECTOR > 0
+u32
+vlib_buffer_alloc_may_fail (vlib_main_t * vm, u32 n_buffers)
+{
+ f64 r;
+
+ r = random_f64 (&vm->buffer_alloc_success_seed);
+
+ /* Fail this request? */
+ if (r > vm->buffer_alloc_success_rate)
+ n_buffers--;
+ /* 5% chance of returning nothing at all */
+ if (r > vm->buffer_alloc_success_rate && r > 0.95)
+ n_buffers = 0;
+
+ return n_buffers;
+}
+#endif
/** @endcond */
/*