Merge pull request #4871 from martin-frbg/issue4868

Ensure a buffer has been allocated for each thread before invoking it

driver/others/blas_server.c

@@ -1076,6 +1076,8 @@ fprintf(STDERR, "Server[%2ld] Calculation started.  Mode = 0x%03x M = %3ld N=%3l
       main_status[cpu] = MAIN_RUNNING1;
 #endif
 
+if (buffer == NULL) blas_thread_buffer[cpu] = blas_memory_alloc(2);
+	
 //For target LOONGSON3R5, applying an offset to the buffer is essential
 //for minimizing cache conflicts and optimizing performance.
 #if defined(ARCH_LOONGARCH64) && !defined(NO_AFFINITY)