matiamic commented on PR #18503:
URL: https://github.com/apache/nuttx/pull/18503#issuecomment-4017495121
The following is a scenario in which `ps` is called from the telnet session.
<details><summary>Calling ps from the telnet client</summary><p>
```
michal@michal-ThinkPad-X250:~$ telnet 10.0.0.2
Trying 10.0.0.2...
Connected to 10.0.0.2.
Escape character is '^]'.
NuttShell (NSH) NuttX-12.12.0
nsh> ps
nsh: &ps: command not found
nsh> ps
PID PPID GROUP PRI POLICY TYPE NPX STATE EVENT SIGMASK
STACK COMMAND
```
</p></details>
<details><summary>Serial console crash dump</summary><p>
```
telnetd [4:100]
NuttShell (NSH) NuttX-12.12.0
nsh> dump_assert_info: Current Version: NuttX 12.12.0 f8307643a0 Mar 7
2026 22:52:03 arm
dump_assert_info: Assertion failed panic: at file: :0 task: <noname>
process: <noname> 0x800fff1
up_dump_register: R0: 00000000 R1: 300039e4 R2: 30003578 R3: 00000000
up_dump_register: R4: 30003c5c R5: 08048678 R6: 00000000 FP: 00000000
up_dump_register: R8: 00000000 SB: 00000000 SL: 00000000 R11: 00000000
up_dump_register: IP: 00000000 SP: 30003a10 LR: 0800ca6b PC: 0803605c
up_dump_register: xPSR: 21000000 BASEPRI: 00000000 CONTROL: 00000000
up_dump_register: EXC_RETURN: ffffffed
dump_stackinfo: User Stack:
dump_stackinfo: base: 0x30003578
dump_stackinfo: size: 00002000
dump_stackinfo: sp: 0x30003a10
stack_dump: 0x300039f0: 00000000 00000000 00000000 00000000 00000000
00000000 00000000 08036059
stack_dump: 0x30003a10: 30004060 00000000 30003a68 08028433 53205850
0800d9a1 30003a68 00000c01
stack_dump: 0x30003a30: 080499fc 300034ac 30007ff8 00000001 00000030
30004090 30003280 08028559
stack_dump: 0x30003a50: 00000000 080499fc 30003a68 00000028 08035dab
00000c01 00000001 30004060
stack_dump: 0x30003a70: 080181d3 080499fc 08049934 30004060 080499b0
08016b53 080499a4 0804999c
stack_dump: 0x30003a90: 08018289 080499fc 080498fc 30003d60 08049978
08049970 00003ba0 00000000
stack_dump: 0x30003ab0: 30003c5c 08018401 30003af3 08040225 24008d70
30003ba0 00000001 30003d60
stack_dump: 0x30003ad0: ffffffff 08003717 fffffffe 300031d8 00000000
00003c5c 08048678 08013985
stack_dump: 0x30003af0: 0000401b 08048c37 30003c4c 08014135 30004018
30003ba0 00000001 30003d60
stack_dump: 0x30003b10: 30003b38 30004018 0801836d 080491f4 30003c5c
08010d63 3000401a 00000000
stack_dump: 0x30003b30: 30003c4c 30003ba0 00000001 30003d60 08048659
30004018 00000000 30003be8
stack_dump: 0x30003b50: 30003b9c 30003d60 30003be8 00000000 30003b98
ffffffff 00000000 00000001
stack_dump: 0x30003b70: 00000000 30003c5c 08048678 080122c7 30003b94
30002f80 30004018 30003d60
stack_dump: 0x30003b90: 00000001 00000000 30004018 3000401b 30004018
00000000 00000000 00000000
stack_dump: 0x30003bb0: 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000
stack_dump: 0x30003bd0: 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000
stack_dump: 0x30003bf0: 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000
stack_dump: 0x30003c10: 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000
stack_dump: 0x30003c30: 00000000 00000000 00000000 00000000 00000000
00000000 00000000 ffffffff
stack_dump: 0x30003c50: ffffffff 00000000 00000000 00000000 00000000
0000000a 0000000a 08048400
stack_dump: 0x30003c70: 30003cb8 00003c78 080483fc 00000001 00000040
00000001 240001c0 08012389
stack_dump: 0x30003c90: 30004018 30003d60 08048378 00000005 00000300
080299ef 08010085 3000401a
stack_dump: 0x30003cb0: 00000002 30003fb0 30004018 30004018 00000001
0800ffbf 00000000 000002f8
stack_dump: 0x30003cd0: 30003560 00000001 00000002 30003d60 30003d60
00000003 00000000 00000000
stack_dump: 0x30003cf0: 00000000 0801000d 30003560 00000001 00000000
30003d60 00000000 0800aab5
stack_dump: 0x30003d10: 00000000 30003560 00000001 0800fff1 00000000
08005ab9 00000000 30003560
stack_dump: 0x30003d30: 00000000 300031d8 00000001 00000001 00000000
00000000 00000000 00000000
dump_tasks: PID GROUP PRI POLICY TYPE NPX STATE EVENT SIGMASK
STACKBASE STACKSIZE COMMAND
dump_tasks: ---- --- --- -------- ------- --- ------- ----------
---------------- 0x24000840 2048 irq
dump_task: 0 0 0 FIFO Kthread - Ready
0000000000000000 0x2400a150 1000 <noname>
dump_task: 1 0 224 RR Kthread - Waiting Semaphore
0000000000000000 0x30000328 1976 <noname> 0x240000b8 0x24000100
dump_task: 2 0 100 RR Kthread - Waiting Semaphore
0000000000000000 0x30000bd8 1976 <noname> 0x2400011c 0x24000164
dump_task: 3 3 100 RR Task - Waiting Semaphore
0000000000000000 0x30001758 2000 <noname>
dump_task: 4 4 100 RR Task - Waiting Semaphore
0000000000000000 0x300026f8 2008 <noname>
```
</p></details>
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