On Thu, Apr 26, 2007 at 06:02:52PM -0700, Tim Hockin wrote:
> This patch makes the MCE poller adjust the polling interval dynamically.
> If we find an MCE, poll 2x faster (down to 10 ms). When we stop finding
> MCEs, poll 2x slower (up to check_interval seconds). The check_interval
> tunable becomes the max polling interval.
Can you please fix the documentation then?
> If you start to take a lot of correctable errors (not exceptions), you
> log them faster and more accurately (less chance of overflowing the MCA
> registers). If you don't take a lot of errors, you will see no change.
AMD RevF can do this using the threshold interrupts too for DIMM errors
too without any delays -- perhaps it would also make sense to configure
this by default that it always triggers on all DIMM errors.
Right now it is just an option in /sys
The printk should not happen too often. Can you add some hardcoded
limit there than it doesn't happen more often than every hour or so
(or perhaps use a exponential backoff here too?)
It is only to tell users to check mcelog output.