On Wed, 30 Mar 2011, YongHyeon PYUN wrote:
Okay, I did a test run with RX checksum, TX checksum and both disabled.
In all three cases the crash occurs within about 20 minutes. I'm either
not sure that age(4) is the problem but it has definedly something to do
with the problem, since with another nic driver the same scenario is
rock solid...
OK.
The workload: It's a NFS3 server (FreeBSDs non-experimental
implementation), serving and receiving file with about 250 to 500
megabytes at about 20mb/s. The clients are FreeBSD 7 and 8 systems and
are mounting the shares via TCP. The connection is 1000mbit/s via a
"dumb" gigabit switch.
That's too broad to narrow down the issue. :-(
I'm not sure but your box seem to have more than 4GB memory. Could
you limit the available memory to 3GB via loader.conf and test it
again?
All boxes are quadcore machines with 8GB RAM, running FreeBSD/amd64.
After limiting the memory via hw.physmem to 3GB the problems are gone.
The box is running crashfree for more than 6 hours and has served over
300GB of data via age(4).
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