The following reply was made to PR port-sparc64/29473; it has been noted by GNATS.

From: Jaromir Dolecek <jdolecek@NetBSD.org>
To: john heasley <heas@shrubbery.net>
Cc: Andrey Petrov <petrov@NetBSD.org>, gnats-bugs@NetBSD.org,
	port-sparc64-maintainer@NetBSD.org, gnats-admin@NetBSD.org,
	netbsd-bugs@NetBSD.org
Subject: Re: port-sparc64/29473: nfs + bus_dmamap_load_mbuf often results in a hang
Date: Thu, 24 Feb 2005 15:48:29 +0100

 On Wed, Feb 23, 2005 at 12:28:39PM -0800, john heasley wrote:
 > > Is kernel modified?
 > 
 > Not on this box, current as of ~this last sunday.  I noticed this happen
 > a long time ago, circa 1.6Z, but set-up the hme and forgot to report or
 > return to it ... until last week.
 
 Could this be the well-known sparc64 PCI DMA bug? hme0 (or other
 adapters using bus_dmamap_load_mbuf()) used to lockup the kernel regularily
 under load.
 
 Jaromir
 -- 
 Jaromir Dolecek <jdolecek@NetBSD.org>            http://www.NetBSD.cz/
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