Hi, Is there anyone who has/had SL-6 machines running > 200 days ? There is a kernel bug that causes a system crash when the uptime goes over 208.5 days. This was noted by an Scientific Linux user on the SL Japanese mailing list [1]. According to available info, the patch [2] is now in kernel 3.1.5. RHEL/SL 6 is affected in the sense that the buggy code is there. SL 6 has been out long enough to see this bug in action and so I wondered if someone has already encountered a crash. I searched TUV's bugzilla but have not been able to find one that looks related. If your system's uptime is approaching 200 days, you might want to do a 'planned' reboot to avoid possible crashes. Akemi [1] https://groups.google.com/group/sl-users-jp/browse_thread/thread/bb37e85ab4cc2e1?hl=ja [2] http://www.google.com/url?sa=D&q=http://git.kernel.org/%3Fp%3Dlinux/kernel/git/tip/tip.git%3Ba%3Dcommitdiff%3Bh%3D4cecf6d401a01d054afc1e5f605bcbfe553cb9b9&usg=AFQjCNFaSQTxnRMEckhXsYkZlRloks3WJg