On Thu, Apr 05, 2007 at 09:45:15AM -0700, Don O'Neil wrote: > More info on my problem..... > > I swapped out the MB, CPU's, RAM, Power Supply and I still have the problem > with the kernel panicing when running on SMP. > > When I re-build the kernel for NO SMP, the machine is rock solid, even under > VERY high loads. > > I setup the old MB, CPU's, RAM & Power Supply on the bench, with a new > 6.1-STABLE-200608 AND 6.2-RELEASE install and run dozens of copies of the > stress port. Even with it bringing loads up to >250, and eating up all > available RAM and SWAP I could not get the kernel to panic. > > The ONLY difference between the bench setup and the production setup is a > 3-Ware Escalade RAID card. I am going to setup another array on the bench > with a spare card I have and see if I can get it to panic under that setup > (which will be identical hardware wise to the production box). The only > thing I can think of right now is one of the following: > > 1) Bad RAID card or cables <- unlikely since it should show up even in > uniprocessor mode > 2) Problem with the TWE driver in SMP mode <- more likely > > I'm leaning towards #2, especially with the other recent reports of someone > else getting kernel panics with 3ware products. > > Anyone else have any thoughts as to what scenarios/tools I should try to > isolate the problem?
Update to 6.2-RELEASE or RELENG_6. It's really very easy, and you will quickly be able to evaluate whether someone has already fixed this bug. If it persists, then we have a known data point to proceed with fixing it. FYI I run twe on an extremely heavily loaded SMP system (master build server for the package builds) and it has had no relevant driver issues for at least the past 2 or 3 years that I can recall. Kris
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