Re[2]: MegaRAID 'Bad Slot' Kernel message and crash.

From: Tony Byrne (freebsd-current_at_byrnehq.com)
Date: 12/29/04

  • Next message: Kris Kennaway: "Re: icc8 failed on 4.10: Illegal instruction" 
    Date: Wed, 29 Dec 2004 15:53:44 +0000
To: Scott Long <scottl@freebsd.org>

    Hello Scott,

    Wednesday, December 29, 2004, 2:46:04 PM, you wrote:

    SL> I've been seeing this problem recently too. I believe that there is
    SL> some sort of timing bug/race in the driver, but I haven't been able to
    SL> figure it out yet. It also seems to be related to panic from the block
    SL> layer that point to commands being completed twice. To be clear with
    SL> your observations, are you saying that 4.10-RELEASE is behaving the same
    SL> or differently than 4.10-STABLE?

    We tried 5.3 just after RELEASE, if I recall correctly, but had updated our
    sources and rebuilt world before running our tests. Under 5.3 we wedged
    the controller a number of times in the space of 3 days each with a
    "bad slot" kernel message.

    Once we decided that 5.3 was not a going to cut it for us, we
    downgraded to 4.10-STABLE (circa 16th Nov) and re-ran our tests,
    this time we couldn't wedge the system. The server has been in
    production on 4.10-STABLE for about a month and yesterday was the
    first "bad slot" wedge we've seen. I'd hate to think that we can now
    look forward to a monthly trip to the hosting facility to hard reset the
    box :-(

    Regards,

    Tony. 

    -- 
Tony Byrne
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  • Next message: Kris Kennaway: "Re: icc8 failed on 4.10: Illegal instruction"

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