Samething Is happening to my server.
Spec's
32GB DDR3 2133Mhz ( 10GB For Java ) ( NOT OC'D)
Storage Is on SAN via ISCSI that has x8 240GB SSD's ( Along with DROBO b800i for backups )
i5 2400K ( NOT OC'D)
This has a 4port network card (1x for iscsi, 1x for drobo, 1x for mysql, 1x tekkit server)
Most of my plugins run VIA MySQL
Spec's for MySQL
8GB DDR3 1866Mhz
i7 930
x1 240GB SSD
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It's strange, I can say Overclocking isn't the issue. What's strange, when this happens on one server, java totally crashes, not just the server.
It seems Java itself Is crashing, which bukkit has nothing to report back on.
What's catching me more, It's giving no errors.
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One question though, are you guys using MySQL?