wangfq 421334ec48 perf(vd960DBN): RAM 瘦身 — .bss 省 4.8KB, 栈 1.9KB→~6.7KB (2026-08-17) ...

栈溢出根因确认后 .bss 瘦身四刀:
- net_config.h: ETH_MAX_PACKET_SIZE 1520→768 (MSS=700最大帧758B, 省3.76KB)
- iot_mqtt_srv.c: payload[1400]→800 (loop_data最大~604B, 省600B)
- iot_mqtt_srv.h: IOT_MQTT_SEND_BUF_LEN 1024→800 (_iot_send_buf/resp/buf 同步, 省224B)
- net_srv.c: MAX_MQTTBUF_LEN 1024→800 (512仍不够勿回改, 省224B)

⚠ ETH 768 为 MSS=700 最小安全值; 若现场有大UDP包截断改回1024。
待办: .map 确认 BLE 栈占用; RECE_BUF_LEN/ARP 表可再省; 局部大数组转static。

2026-08-17 14:10:52 +08:00

..

incidents

fix(mqtt): 修复 loop_data>512B 溢出发垃圾包致 broker RST 重连风暴 (现场P0)

2026-07-15 14:58:03 +08:00

devlog.md

perf(vd960DBN): RAM 瘦身 — .bss 省 4.8KB, 栈 1.9KB→~6.7KB (2026-08-17)

2026-08-17 14:10:52 +08:00