[GitHub] [incubator-nuttx] masayuki2009 commented on pull request #5529: risc-v/qemu-rv: Supports SMP up to 8 cores and other minor changes

[GitBox]

masayuki2009 commented on pull request #5529:
URL: https://github.com/apache/incubator-nuttx/pull/5529#issuecomment-1075984650


   @no1wudi 
   
   I tried this PR but  the `smp` application does not work.
   
   ```
   $ ~/opensource/QEMU/qemu-6.1.1/build/riscv64-softmmu/qemu-system-riscv64 
-nographic -cpu rv64 -M virt -bios none -kernel ./nuttx
   qemu-system-riscv64: clint: invalid write: 00000004
   qemu-system-riscv64: clint: invalid write: 00000008
   qemu-system-riscv64: clint: invalid write: 0000000c
   qemu-system-riscv64: clint: invalid write: 00000010
   qemu-system-riscv64: clint: invalid write: 00000014
   qemu-system-riscv64: clint: invalid write: 00000018
   qemu-system-riscv64: clint: invalid write: 0000001c
   
   NuttShell (NSH) NuttX-10.2.0
   nsh> uname -a
   NuttX 10.2.0 ab18b7b3d3 Mar 23 2022 15:43:23 risc-v rv-virt
   nsh> ps
     PID GROUP CPU PRI POLICY   TYPE    NPX STATE    EVENT     SIGMASK   STACK  
 USED  FILLED COMMAND
       0     0   0   0 FIFO     Kthread N-- Assigned           00000000 002000 
001088  54.4%  CPU0 IDLE
       1     1   1   0 FIFO     Kthread N-- Running            00000000 002000 
002000 100.0%! CPU1 IDLE
       2     2   2   0 FIFO     Kthread N-- Running            00000000 002000 
002000 100.0%! CPU2 IDLE
       3     3   3   0 FIFO     Kthread N-- Running            00000000 002000 
002000 100.0%! CPU3 IDLE
       4     4   4   0 FIFO     Kthread N-- Running            00000000 002000 
002000 100.0%! CPU4 IDLE
       5     5   5   0 FIFO     Kthread N-- Running            00000000 002000 
002000 100.0%! CPU5 IDLE
       6     6   6   0 FIFO     Kthread N-- Running            00000000 002000 
002000 100.0%! CPU6 IDLE
       7     7   7   0 FIFO     Kthread N-- Running            00000000 002000 
002000 100.0%! CPU7 IDLE
       8     8   0 100 RR       Task    --- Running            00000000 002016 
001952  96.8%! nsh_main
   nsh> free
                      total       used       free    largest  nused  nfree
           Umem:   33379360      13648   33365712   33365712     58      1
   nsh> help
   help usage:  help [-v] [<cmd>]
   
     ?      cat    cd     free   help   ls     mount  ps     uname  
   
   Builtin Apps:
     ostest  sh      nsh     smp     
   nsh> smp
     Main[0]: Running on CPU0
     Main[0]: Initializing barrier
   qemu-system-riscv64: clint: invalid write: 00000004
   ```
   


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