matt@accuvax.nwu.edu (Matt Larson) (12/30/89)
A company that I write software for is having an interesting problem. We are
having trouble tracking down the cause. Hopefully someone out there will have
an idea. Here's the situation:
The system is a DTK motherboard, 25 Mhz, two serial ports at COM1 and COM2,
a DigiBoard 16i, two floppies, and a tape drive. None have conflicting memory
addresses, interrupts, or DMA channels. The system runs SCO XENIX 2.3.2GT -
they have an ESDI drive. Every so often this ugly message appears:
dfalloc: PANIC: frame not free at exit
This, of course, brings the system to a crashing halt. I have not been able
to isolate what causes this to happen; at this point, it still appears random.
However, if I reboot without cycling power, the system does not recognize COM2
on its boot-up checklist. If I cycle power, COM2 is recognized and behaves
fine.
We have tried re-installing the DigiBoard software at SCO's suggestion with no
luck. We are also on our second standard COM1/COM2 serial board.
Any suggestions or comments would be greatly appreciated.
--
Matt Larson Internet: matt@holmes.home.nwu.edu
Voice: (708) 492-9854 UUCP: ...!{oddjob,gargoyle}!nucsrl!holmes!matt
"I believe in the fundamental interconnectedness of all things." - Dirk Gently