Date: Fri, 22 Apr 2005 11:28:15 -0400 From: Garrett Wollman <wollman@csail.mit.edu> To: Brian Fundakowski Feldman <green@FreeBSD.ORG> Cc: freebsd-current@FreeBSD.ORG Subject: Re: NFS client/buffer cache deadlock Message-ID: <17001.6159.521697.442481@khavrinen.csail.mit.edu> In-Reply-To: <20050422150835.GM1157@green.homeunix.org> References: <20050419160900.GB12287@stack.nl> <20050419161616.GF1157@green.homeunix.org> <20050419204723.GG1157@green.homeunix.org> <20050420140409.GA77731@stack.nl> <20050420142448.GH1157@green.homeunix.org> <20050420143842.GB77731@stack.nl> <20050420152038.GI1157@green.homeunix.org> <20050420153528.GC77731@stack.nl> <20050420155233.GJ1157@green.homeunix.org> <16998.37222.529748.205885@khavrinen.csail.mit.edu> <20050422150835.GM1157@green.homeunix.org>
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<<On Fri, 22 Apr 2005 11:08:35 -0400, Brian Fundakowski Feldman <green@FreeBSD.ORG> said: > Can you find any evidence that it's acceptable to interleave multiple > writers that are doing O_APPEND? At best, to do what you're asking, > they could be kept from being interleaved from the context of one > specific NFS client host... As far as POSIX goes, the standard says that applications are expected to handle serialization. It makes no exception for O_APPEND. -GAWollman
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