Debug Trace
2. The Tool
The MUP1 client tool 'mup1ct' is used to control trace.
The command below is used to show the help. The output only shows the help for the 'sysrq trace' and 'listen' commands.
$ mup1ct -h
mup1ct [options] sysrq trace <TRACE-SPECIFIER>[,<TRACE-SPECIFIER>...]
This is used to set a trace level, where <TRACE-SPECIFIER> is defined as:
<MODULE>:<LEVEL>
Where:
<MODULE>: Is the name of a given module. An "empty string" may be used as an alias
for all modules.
<LEVEL>: Can be specified as one of: 'off', 'error', 'info', 'debug',
'noise', 'get'.
Here 'get' is special as it will trigger the given trace level
to be printed as a MUP1-Trace message.
All other will cause an update of the trace level.
Default value is 'get'
If multiple trace-specifier are given, then they will be evaluated in
sequence.
Example:
mup1ct -t sysrq trace : # Print all trace levels
mup1ct -t sysrq trace :off # Disable all traces
mup1ct -t sysrq trace port:info # Set trace level in 'port' to info level
mup1ct [options] listen
This command will not issue any requests, but simply listen to the UART line
and if used in combination with '-t' then it shall print traces.
Notice the default "waiting" ('-w') time here is infinite.3. Port Polling Trace
The 'sysrq trace' command can be used to show and enable debug trace for the port module:
$ mup1ct -d termhub://10.205.27.92:4113 -t sysrq trace port
Module Level
-------- --------
port error
$ mup1ct -d termhub://10.205.27.92:4113 -t sysrq trace port:debugThe 'listen' command can be used to show trace output, for example for one second using '-w' option:
$ mup1ct -d termhub://10.205.27.92:4113 -t -w 1 listen
00:07:24-097202 port/debug 764 : enter port 6 link_old 0 link 0 link_down 0
00:07:24-131201 port/debug 764 : enter port 7 link_old 0 link 0 link_down 0
00:07:24-165202 port/debug 764 : enter port 8 link_old 0 link 0 link_down 0
00:07:24-199202 port/debug 764 : enter port 9 link_old 0 link 0 link_down 0
00:07:24-233203 port/debug 764 : enter port 10 link_old 0 link 0 link_down 0
00:07:24-267203 port/debug 764 : enter port 11 link_old 0 link 0 link_down 0
00:07:24-301203 port/debug 764 : enter port 12 link_old 0 link 0 link_down 0
00:07:24-335203 port/debug 764 : enter port 13 link_old 0 link 0 link_down 0
00:07:24-369203 port/debug 764 : enter port 14 link_old 0 link 0 link_down 0
00:07:24-403203 port/debug 764 : enter port 15 link_old 0 link 0 link_down 0
00:07:24-437203 port/debug 764 : enter port 16 link_old 0 link 0 link_down 0
00:07:24-471204 port/debug 764 : enter port 17 link_old 0 link 0 link_down 0
00:07:24-505203 port/debug 764 : enter port 18 link_old 0 link 0 link_down 0
00:07:24-539204 port/debug 764 : enter port 19 link_old 0 link 0 link_down 0
00:07:24-573204 port/debug 764 : enter port 20 link_old 0 link 0 link_down 0
00:07:24-607204 port/debug 764 : enter port 21 link_old 0 link 0 link_down 0
00:07:24-641204 port/debug 764 : enter port 22 link_old 0 link 0 link_down 0
00:07:24-675205 port/debug 764 : enter port 23 link_old 0 link 0 link_down 0
00:07:24-709144 port/debug 764 : enter port 24 link_old 1 link 1 link_down 0
00:07:24-743143 port/debug 764 : enter port 25 link_old 1 link 1 link_down 0
00:07:24-777144 port/debug 764 : enter port 26 link_old 0 link 0 link_down 1
00:07:24-811145 port/debug 764 : enter port 27 link_old 0 link 0 link_down 1
00:07:24-845206 port/debug 764 : enter port 28 link_old 1 link 1 link_down 0
00:07:24-879255 port/debug 764 : enter port 0 link_old 1 link 1 link_down 0
00:07:24-913255 port/debug 764 : enter port 1 link_old 1 link 1 link_down 0
00:07:24-947256 port/debug 764 : enter port 2 link_old 1 link 1 link_down 0
00:07:24-981256 port/debug 764 : enter port 3 link_old 1 link 1 link_down 0
00:07:25-015205 port/debug 764 : enter port 4 link_old 0 link 0 link_down 0
00:07:25-049205 port/debug 764 : enter port 5 link_old 0 link 0 link_down 0
End of listen