yf13 commented on PR #12812:
URL: https://github.com/apache/nuttx/pull/12812#issuecomment-2261819515
I tried this patch set locally but `vfork_test()` got `illegal instruction`
exception:
```
user_main: vfork() test
riscv_exception: EXCEPTION: Illegal instruction. MCAUSE: 00000002, EPC:
80203a40, MTVAL: 00000000
riscv_exception: PANIC!!! Exception = 00000002
_assert: Current Version: NuttX 12.4.0 d4f7a40037-dirty Aug 1 2024
09:52:17 risc-v
_assert: Assertion failed panic: at file: :0 task: leaks process: leaks
0x8004ace4
up_dump_register: EPC: 80203a40
up_dump_register: A0: 00000000 A1: 00000000 A2: 00000000 A3: 00000000
up_dump_register: A4: 00000000 A5: 00000000 A6: 00000000 A7: 00000000
up_dump_register: T0: 00000000 T1: 00000000 T2: 00000000 T3: 00000000
up_dump_register: T4: 00000000 T5: 00000000 T6: 00000000
up_dump_register: S0: 80202f00 S1: 00000000 S2: 00000000 S3: 00000000
up_dump_register: S4: 00000000 S5: 00000000 S6: 00000000 S7: 00000000
up_dump_register: S8: 00000000 S9: 00000000 S10: 00000000 S11: 00000000
up_dump_register: SP: 80204850 FP: 80202f00 TP: 00000000 RA: 80203a40
dump_stack: User Stack:
dump_stack: base: 0x80203d78
dump_stack: size: 00002984
dump_stack: sp: 0x80204850
stack_dump: 0x80204830: 00000000 00000000 00000000 00000000 00000000
00000bb0 80202f00 80203a40
stack_dump: 0x80204850: 80202da0 80202da4 80203a60 8005220a 00000000
00000019 80203a60 00000000
stack_dump: 0x80204870: 80202da0 8004ace4 80203a80 80051072 0007a000
80203a80 80203a80 0a052342
stack_dump: 0x80204890: 0007a000 8004ace4 80203ac0 8004ad28 000ff3c4
00000001 00000012 000fc4f8
stack_dump: 0x802048b0: 00002ecc 000fc4f8 00005e48 00000000 00000000
00000000 00000000 00000000
stack_dump: 0x802048d0: 801030b8 8004ace4 80203ae0 800400ba 00000000
00000000 00000005 80202f10
stack_dump: 0x802048f0: 00000000 00000000 80203af0 80006fb4 00000000
00000000 80203b00 80006fb4
stack_dump: 0x80204910: 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000
dump_tasks: PID GROUP PRI POLICY TYPE NPX STATE EVENT SIGMASK
STACKBASE STACKSIZE USED FILLED COMMAND
dump_tasks: ---- --- --- -------- ------- --- ------- ----------
---------------- 0x80100980 2048 836 40.8% irq
dump_task: 0 0 0 FIFO Kthread - Ready
0000000000000000 0x80102010 2032 656 32.2% Idle_Task
dump_task: 1 1 100 RR Task - Waiting Semaphore
0000000000000000 0x80201000 3024 2076 68.6% nsh_main
dump_task: 12 12 50 RR Task - Waiting Semaphore
0000000000000000 0x802020f8 3032 1164 38.3% leaks
dump_task: 13 13 100 RR Task - Waiting Semaphore
0000000000000000 0x80202f50 2992 1212 40.5% leaks Arg1 Arg2
Arg3 Arg4
dump_task: 14 14 100 RR Task - Running
0000000000000000 0x80203d78 2984 624 20.9% leaks Arg1 Arg2
Arg3 Arg4
```
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