Got flash algorithm overflowed stack when using flash loader converted from KEIL pack FLM

I got following errors when using flash loader converted from Keil pack FLM, the FLM working well under KEIL and Segger JLINK, but failed when using in pyocd, seems pyocd could only download one flash sector.

[=================================                 ]  68%0003571 C flash algorithm overflowed stack (4096 bytes) [__main__]
Traceback (most recent call last):
  File "/opt/homebrew/lib/python3.10/site-packages/pyocd/__main__.py", line 161, in run
    status = cmd.invoke()
  File "/opt/homebrew/lib/python3.10/site-packages/pyocd/subcommands/load_cmd.py", line 125, in invoke
    programmer.program(filename,
  File "/opt/homebrew/lib/python3.10/site-packages/pyocd/flash/file_programmer.py", line 170, in program
    self._loader.commit()
  File "/opt/homebrew/lib/python3.10/site-packages/pyocd/flash/loader.py", line 289, in commit
    perf = builder.program(chip_erase=chipErase,
  File "/opt/homebrew/lib/python3.10/site-packages/pyocd/flash/builder.py", line 509, in program
    flash_operation = self._sector_erase_program_double_buffer(progress_cb)
  File "/opt/homebrew/lib/python3.10/site-packages/pyocd/flash/builder.py", line 949, in _sector_erase_program_double_buffer
    result = self.flash.wait_for_completion(timeout=program_timeout)
  File "/opt/homebrew/lib/python3.10/site-packages/pyocd/flash/flash.py", line 648, in wait_for_completion
    raise exceptions.FlashFailure(f"flash algorithm overflowed stack ({self.begin_stack - self.end_stack} bytes)")
pyocd.core.exceptions.FlashFailure: flash algorithm overflowed stack (4096 bytes)

Start with the stack-trace path in pyocd/flash/flash.py, then follow the calls from pyocd/flash/builder.py through pyocd/flash/loader.py and pyocd/flash/file_programmer.py. Reproduce the reported failure with the converted Keil FLM and determine why programming more than one sector triggers the 4096-byte stack overflow; done requires a confirmed cause and a regression test or clearly documented reproduction.