Debugging DecodingErrors #4
Description
Hi! I keep getting DecodingErrors intermittently that crash mmcterm (example below) when connecting on either channels.
I have my doubts that it's a hardware problem, but I'd like to find out more.
What's a good way to debug this?
Example exception, while in MMC console via network (mmcterm -c 0 IPADDR 0x76):
pyipmi exception: short SDUException in thread rx:
Traceback (most recent call last):
File "/home/cweickhm/.local/lib/python3.12/site-packages/mmcterm/mmcterm.py", line 421, in reader
status, rx_data = self.ipmi.poll_xchg(bytearray(tx_part))
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/cweickhm/.local/lib/python3.12/site-packages/mmcterm/mmcterm.py", line 152, in poll_xchg
return self.raw_cmd(IpmiCode.SOI_POLL_XCHG, tx_data)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/cweickhm/.local/lib/python3.12/site-packages/mmcterm/mmcterm.py", line 110, in raw_cmd
raw_reply = self.conn.raw_command(0, 0x30, data)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/cweickhm/.local/lib/python3.12/site-packages/pyipmi/__init__.py", line 225, in raw_command
return self.interface.send_and_receive_raw(self.target, lun, netfn,
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/cweickhm/.local/lib/python3.12/site-packages/pyipmi/interfaces/rmcp.py", line 656, in send_and_receive_raw
return self._send_and_receive(target=target,
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/cweickhm/.local/lib/python3.12/site-packages/pyipmi/interfaces/rmcp.py", line 613, in _send_and_receive
rx_data = self._receive_ipmi_msg(self.ignore_sdu_length)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/cweickhm/.local/lib/python3.12/site-packages/pyipmi/interfaces/rmcp.py", line 439, in _receive_ipmi_msg
data = msg.unpack(pdu)
^^^^^^^^^^^^^^^
File "/home/cweickhm/.local/lib/python3.12/site-packages/pyipmi/interfaces/rmcp.py", line 328, in unpack
raise DecodingError('short SDU')
pyipmi.errors.DecodingError: short SDU
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/usr/lib/python3.12/threading.py", line 1073, in _bootstrap_inner
self.run()
File "/usr/lib/python3.12/threading.py", line 1010, in run
self._target(*self._args, **self._kwargs)
File "/home/cweickhm/.local/lib/python3.12/site-packages/mmcterm/mmcterm.py", line 423, in reader
self.reader_abort(f'pyipmi exception: {e}')
File "/home/cweickhm/.local/lib/python3.12/site-packages/mmcterm/mmcterm.py", line 396, in reader_abort
self.console.cancel()
File "/home/cweickhm/.local/lib/python3.12/site-packages/mmcterm/mmcterm.py", line 333, in cancel
fcntl.ioctl(self.fd, termios.TIOCSTI, b'\0')
OSError: [Errno 5] Input/output error