On Thu, 16 Jul 2015, Michael L. Squires wrote:
I've not worked with 10.x a lot, so please excuse novice mistakes.
I upgraded the OS on a quad Opteron Tyan S4881 (known to have SMP bugs, but I
haven't seen any and I've been running this system for years). I upgraded
from an earlier version of FreeBSD-10.x to
FreeBSD 10.2-BETA1 r285551.
Problem: during boot, when accessing the DVD drive attached to the EIDE bus
there is an interrupt storm on interrupt 16. After a few minutes of errors
the boot continues successfully and the system appears to behave normally
after that. I do not use the DVD drive except for installs, which are
infrequent.
The earlier kernel does not exhibit this behavior.
This problem has vanished with FreeBSD 10.2-BETA2.
I think the original posting was incorrect, problem was with the Adaptec
SCSI card at boot.
Mike Squires
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FreeBSD 10.2-BETA2 #7 r285816: Fri Jul 24 00:32:09 EDT 2015
r...@superxeon.familysquires.net:/usr/obj/usr/src/sys/OPTERON8 amd64
FreeBSD clang version 3.4.1 (tags/RELEASE_34/dot1-final 208032) 20140512
CPU: AMD Opteron(tm) Processor 850 (2405.51-MHz K8-class CPU)
Origin="AuthenticAMD" Id=0x20f51 Family=0xf Model=0x25 Stepping=1
Features=0x78bfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,MMX,FXSR,SSE,SSE2>
Features2=0x1<SSE3>
AMD Features=0xe2500800<SYSCALL,NX,MMX+,FFXSR,LM,3DNow!+,3DNow!>
AMD Features2=0x1<LAHF>
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