Date: Thu, 07 Oct 2010 21:28:22 +0300 From: Andriy Gapon <avg@icyb.net.ua> To: John Hay <jhay@meraka.org.za> Cc: freebsd-stable@freebsd.org Subject: Re: zfs hang in zio->io_cv) with dd read Message-ID: <4CAE1146.3030305@icyb.net.ua> In-Reply-To: <20101007173102.GA95405@zibbi.meraka.csir.co.za> References: <20101007121558.GA70199@zibbi.meraka.csir.co.za> <i8keq6$ar9$1@dough.gmane.org> <20101007155042.GA88362@zibbi.meraka.csir.co.za> <C84B048D5A8D81F984EC39AF@[172.16.2.182]> <20101007173102.GA95405@zibbi.meraka.csir.co.za>
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on 07/10/2010 20:31 John Hay said the following: > Oct 7 17:11:49 thumper1 kernel: mvsch23: EMPTY CRPB 30 (->0) 0 4000 Can you rule out hardware (or driver-level) problems? E.g. by dd-ing to/from disk directly. Doing that in parallel on the same and/or different disks. Running any disk I/O benchmarks. -- Andriy Gapon
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