openresty nginx进程每次接受请求后频繁退出重启

[12408...@qq.com]

openresty版本 openresty-1.19.3.2

平台：国产化平台龙芯3B4000 MIPS架构

通过 gdb ，调试 nginx的worker进程
报错信息如下：

Program received signal SIGSEGV, Segmentation fault.
ngx_http_lua_pcre_malloc_done (old_pool=0x0) at ../ngx_lua-0.10.15/src/ngx_http_lua_pcrefix.c:94

看源码ngx_http_lua_util.c：
ngx_int_t
ngx_http_lua_run_thread(lua_State *L, ngx_http_request_t *r,
    ngx_http_lua_ctx_t *ctx, volatile int nrets)
 {
....
....
 #if (NGX_PCRE)
            /* XXX: work-around to nginx regex subsystem */
            //ngx_http_lua_pcre_malloc_done(old_pool);
#endif

.....

}

然后调用
ngx_http_lua_pcrefix.c

void
ngx_http_lua_pcre_malloc_done(ngx_pool_t *old_pool)
{
    dd("lua pcre pool was %p", ngx_http_lua_pcre_pool);

    ngx_http_lua_pcre_pool = old_pool;  //应该是因为 old_pool等于0x0导致的异常 。

    dd("lua pcre pool is %p", ngx_http_lua_pcre_pool);

    if (old_pool == NULL) {
        pcre_malloc = old_pcre_malloc;
        pcre_free = old_pcre_free;
    }
}

请专家帮忙看看