I have a SCO UNIX Open Server 5.0.7 system that had been running fine for years
however it started panicking with the error too many queued CPU interrupts.
after the 1st time it waited a couple months until it did it again, as time went on it got more frequent. now it is doing it a couple times a week.
I found a knowledge base article on the SCO web site that addressed it and said to adjust MAXACPUS, I have cranked that up to their max and still no good.
I am not an expert on SCO, just know enough to be dangerous. to the best of my knowledge the system is fully patched.
the system is an HP ML570 g4, 4 dual core CPU,s, 4gig memory, p600 controller card.
don't know now if I am looking at a software or hardware issue. if hardware what piece?
any ideas anyone?
thanks in advance
Tom
This situation rarely occurs anymore, because hardware runs so fast.
For SCO, likely you're running very old hardware too.
My guess is you have some sort of failing device, like a disk or disk controller.
With failing disks, interrupts can get thrown in excess.
You might try simply replacing your disk.
Tip: You can test this theory by installing SCO on a fresh disk + installing the fresh installed disk. If problem persists, then likely the disk controller board will have to be replaced.
Tip: Rather than guessing, refer to your logs + look for hardware failures or odd messages.
SCO systems are rare these days, so you'll have to dig around to find the correct log file locations.
Likely /var/log/* will be your starting point.