ATA interrupt storm after making a kernel dump

[Marcel Moolenaar]

gang,

I got the following when manually creating a kernel core dump from
within DDB:

\begin{console}
FreeBSD/sparc64 (u5.pn.xcllnt.net) (ttyu1)

login: ~KDB: enter: Break sequence on console
[thread pid 23 tid 100011 ]
Stopped at      kdb_enter+0x3c: ta              %xcc, 1
db> call doadump
Dumping 256 MB (1 chunks)
   chunk at 0: 268435456 bytes ... ok

Dump complete
= 0xa
db> c
Interrupt storm detected on "vec2016: atapci0"; throttling interrupt 
source
FreeBSD/sparc64 (u5.pn.xcllnt.net) (ttyu1)

login:
\end{console}

I don't get the interrupt storm triggered on any of the other platforms
I can test. It may not be worth looking into. On the other hand, it may
be symptomatic for more fundamental problems.

Details about the machine can be found here:
	http://www.xcllnt.net/~marcel/machines/u5

FYI,

-- 
  Marcel Moolenaar         USPA: A-39004          marcel at xcllnt.net