John Kasunich wrote:
> Jon Elson wrote:
> 
>>Hello,
>>
>>I was doing some testing with a fresh checkout from the trunk, 
>>and I had a problem that a bunch of messages in 
>>hal/drivers/hal_ppmc.c did not write messages to the kernel log.
>>
>>The lines are of the form :
>>rtapi_print_msg(RTAPI_MSG_INFO, "something\n");
>>
>>and always used to print out with the .ini file parameter
>>DEBUG set to at least 1, I think.  I tried several numbers here, 
>>including 0x7FFFFFFF, and they still didn't print to the file.
>>I did get lines from RTAPI_MSG_ERR, but not from INFO.
>>
>>Is this possibly a bug, or an intended change in the rtapi behavior?
> 
> 
> It's not a change, it has always worked that way.  It's also not really 
> a bug, but maybe it is a behavior that could/should be changed.
> 
> RTAPI is a wrapper API for handling realtime OS stuff, and has no clue 
> about EMC specific things like the DEBUG parameter in the ini file.  It 
> has it's own completely independent way of setting debug level - an 
> entry in the /proc file system (/proc/rtapi/debug) determines what level 
> of messages will be printed out.  You can do "echo 5 >/proc/rtapi/debug" 
> to force all messages to be printed.  (Actually I think 4 will work.)
> 
> It would not be hard to tweak the EMC run script so that if DEBUG is set 
> at or above a certain value, it would set /proc/rtapi/debug accordingly.
> Maybe I'll look into that tonight.
Thanks.  The ini DEBUG certainly did tuirn on a bunch more info 
when I set it to 7FFFFFFF, in the fluury of messages, I didn't 
realize NONE of them were coming from RT modules.  There are a 
bunch of bits defined to control specific message levels, but 
there are still some left.

Jon

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