Hello all,
I've been trying to chase down an issue for about one month now.
Config:
Debian Etch (4.04a) w/xfce, kernel 2.6.18-6-686, VIA PC2500E mobo, Moxa
Smartio C168H/PCI (rev 01)
Symptoms:
I run a Perl based home automation software package, Misterhouse (been
running it on various versions of Debian since ~'98). It interfaces to
numerous serial devices through the mobo's ttyS0 and the Moxa ttyMx
ports. It uses the SerialPort.pm PERL module (POSIX) for initializing
and utilizing ports.
At the top of the hour, some [other] process resets either ttyM0 or
ttyS0 (randomly determined at boot?) which causes the home automation
software to lose communication to the device.
Question:
How can I determine what process is resetting the port? Is there any
logging available to list PIDs that access a port? ...or a way to attach
a debugger to "the system" so I can identify the process?
I used strace on the home automation process to verify that it wasn't
clobbering itself, but I have no idea what other processes may be
"candidates", so I need to watch this from the system level.
Thank you,
Rick Bolen
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