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Date:      Fri, 25 Jun 2010 22:59:57 +0200
From:      Ireneusz Pluta <ipluta@wp.pl>
To:        John Baldwin <jhb@freebsd.org>
Cc:        freebsd-hardware@freebsd.org
Subject:   Re: System hangs during heavy sequential write to mfi device
Message-ID:  <4C2518CD.1020900@wp.pl>
In-Reply-To: <201006251303.41457.jhb@freebsd.org>
References:  <4C2499B5.3030404@wp.pl> <201006250842.22551.jhb@freebsd.org> <4C24D0AF.5000307@wp.pl> <201006251303.41457.jhb@freebsd.org>

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John Baldwin pisze:
>
> Hmmm.  You might have a hardware issue.  OTOH, you can try seeing if you have 
> a BIOS option to disable PCIE error logging.
is it one of them?:

Assert NMI on SERR
Assert NMI on PERR

(pdf page 109 of: -> 
http://download.intel.com/support/motherboards/server/s5520hc/sb/e39529013_s5520hc_s5500hcv_s5520hct_tps_r1_9.pdf)


>   If so, turning it off may fix 
> your hangs since as the act of writing the entry to the system event log can 
> take several hundred milliseconds on some machines causing a hang of sorts.  
> If you still get hangs with the option turned off then it seems you have some 
> sort of hardware issue, possibly in the mfi(4) adapter or mainboard.
>
>   




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