John Baldwin wrote:
On Friday 02 March 2007 12:28, Kris Kennaway wrote:
On Fri, Mar 02, 2007 at 10:13:54AM -0700, Scott Long wrote:
John Baldwin wrote:
jhb 2007-03-02 17:01:45 UTC
FreeBSD src repository
Modified files:
sys/kern kern_intr.c
Log:
- Don't do the interrupt storm protection stuff for software interrupt
handlers.
- Use pause() when throtting during an interrupt storm.
Reported by: kris (1)
Revision Changes Path
1.142 +3 -2 src/sys/kern/kern_intr.c
Actually, having this helped detect a problem with a CAM driver.
Scott
I saw it under normal operation when doing a lot of loopback traffic
on an 8-core.
Also, if it ever kicked in for softclock, the system would deadlock.
Can it be selectively enabled?
Scott
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