Jinliang Li

There is no replay packet for my ping request to httpbin.org. $ ping httpbin.org PING httpbin.org (34.197.247.180): 56 data bytes Request timeout for icmp_seq 0 Request timeout for icmp_seq 1...

[Bug Report]: work quque的工作队列和默认工作队列说明文档缺失

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### 联系方式 _No response_ ### 您发现了什么问题 A bug happened! 运行环境: 固件版本: ### 分支 master (Default) ### 请选择您发现此问题的解决方案名称 _No response_ ### 日志 ```shell 内核编程文档中work quque的工作队列和默认工作队列说明文档缺失，请补充说明其区别及使用方法。 https://g.alicdn.com/alios-things-3.3/doc/aos_kernel.html?spm=a2cti.24227744.0.0.61ee666cUrczBt#autotoc_md148 ```

### Description / Steps to reproduce the issue Duplicate CFLAGS(e.g. -mcpu=cortex-a7) in linking like the below: `arm-gnu-toolchain-12.2.rel1-x86_64-arm-none-eabi/bin/arm-none-eabi-g++ --specs=nosys.specs -Wl,--entry=__start -nostdlib -Wl,--gc-sections -Wl,--cref -Wl,-Map=nuttx.map CMakeFiles/nuttx.dir/empty.cxx.obj CMakeFiles/final_nuttx.dir/kasan_global_final.c.obj -o final_nuttx -mcpu=cortex-a7 -mfloat-abi=hard -mfpu=neon-vfpv4...

[BUG] qemu riscv64 bootup hang

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In the lastest code in master branch, bootup qemu riscv hang. **The issue disappear if adding some sinfo log in nx_start function.** lijinliang1@pc0: /work/nuttx$ cmake -B build -DBOARD_CONFIG=rv-virt:nsh64 -GNinja --...