@@ -814,10 +814,10 @@ int main(int argc, char **argv, char **envp)
thread_cpu = cpu;
/*
- * Reserving too much vm space via mmap can run into problems
- * with rlimits, oom due to page table creation, etc. We will
- * still try it, if directed by the command-line option, but
- * not by default.
+ * Reserving too much vm space via mmap can run into problems with rlimits,
+ * oom due to page table creation, etc. We will still try it, if directed
+ * by the command-line option, but not by default. Unless we're running a
+ * target address space of 32 or fewer bits on a host with 64 bits.
*/
max_reserved_va = MAX_RESERVED_VA(cpu);
if (reserved_va != 0) {