Hi All, No joy.. the system seized up again within a few hours of coming back up. > > Now trying another suggestion sent to me by a direct poster: > > * Recommendation from Sun (Oracle) to work around a bug: > * 6958068 - Nehalem deeper C-states cause erratic scheduling behavior > set idle_cpu_prefer_mwait = 0 > set idle_cpu_no_deep_c = 1 > > Was apparently the cause of a similar symptom for them and we are using > Nehalem. > > At this point I'm running out of options, so it can't hurt to try it.
So far the system has been running without any lock ups since very late Monday evening -- we're now almost 48 hours on. So far so good, but it's hard to be certain this is the solution, since I could never prove it was the root cause. For now I'm just continuing to test and build confidence level. More time will make me more confident. Maybe a week or so.... Regards, -- Lachlan Mulcahy Senior DBA, Marin Software Inc. San Francisco, USA AU Mobile: +61 458 448 721 US Mobile: +1 (415) 867 2839 Office : +1 (415) 671 6080
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