No subject

fact I'm surprised that's changed (FreePBX's DAHDI module created the
current config -- i.e. the one I posted in my original email).  I'll
change that back and see if that makes a difference, but I'm pretty
sure I used the above configuration in a previous attempt with the
same results.

Also, I have indeed received the following messages prior to the
interface going down and these errors are what I was initially
researching:

[root at asterisk-master dahdi]# grep HDLC /var/log/asterisk/full
...
[2013-07-30 08:09:03] NOTICE[3621] chan_dahdi.c: PRI got event: HDLC
Bad FCS (8) on D-channel of span 1
[2013-07-30 08:09:03] NOTICE[3621] chan_dahdi.c: PRI got event: HDLC
Bad FCS (8) on D-channel of span 1
[2013-07-30 08:24:05] NOTICE[3621] chan_dahdi.c: PRI got event: HDLC
Bad FCS (8) on D-channel of span 1
[2013-07-30 08:24:05] NOTICE[3621] chan_dahdi.c: PRI got event: HDLC
Bad FCS (8) on D-channel of span 1
[2013-07-30 08:29:47] NOTICE[3621] chan_dahdi.c: PRI got event: HDLC
Bad FCS (8) on D-channel of span 1
[2013-07-30 08:29:47] NOTICE[3621] chan_dahdi.c: PRI got event: HDLC
Bad FCS (8) on D-channel of span 1
[2013-07-30 08:30:52] NOTICE[3621] chan_dahdi.c: PRI got event: HDLC
Abort (6) on D-channel of span 1
[2013-07-30 08:30:52] NOTICE[3621] chan_dahdi.c: PRI got event: HDLC
Abort (6) on D-channel of span 1
[2013-07-30 08:36:01] NOTICE[3621] chan_dahdi.c: PRI got event: HDLC
Bad FCS (8) on D-channel of span 1
[2013-07-30 08:36:01] NOTICE[3621] chan_dahdi.c: PRI got event: HDLC
Bad FCS (8) on D-channel of span 1
[2013-07-30 08:39:54] NOTICE[3621] chan_dahdi.c: PRI got event: HDLC
Abort (6) on D-channel of span 1
[2013-07-30 08:39:54] NOTICE[3621] chan_dahdi.c: PRI got event: HDLC
Abort (6) on D-channel of span 1

A lot of info I found while researching the above error mentioned
IRQ's, etc. and was one reason I posted the output of
/proc/interrupts, heh...but I'm pretty sure my issue is not one that
has to do with the IRQs.

Thanks for the suggestions!