hujun260 opened a new pull request, #13349:
URL: https://github.com/apache/nuttx/pull/13349
## Summary
In SMP, we have encountered the situation many times where calling
spin_lock_irqsave first and then calling enter_critical_section subsequently,
this can lead to a deadlock.
Configuring NuttX and compile:
$ ./tools/configure.sh -l qemu-armv8a:nsh_smp
$ make
Running with qemu
$ qemu-system-aarch64 -cpu cortex-a53 -smp 4 -nographic \
-machine virt,virtualization=on,gic-version=3 \
-net none -chardev stdio,id=con,mux=on -serial chardev:con \
-mon chardev=con,mode=readline -kernel ./nuttx
## Impact
none
## Testing
ostest
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