Date: Fri, 22 Apr 2005 11:35:22 -0400 From: Brian Fundakowski Feldman <green@FreeBSD.ORG> To: Garrett Wollman <wollman@csail.mit.edu> Cc: freebsd-current@FreeBSD.ORG Subject: Re: NFS client/buffer cache deadlock Message-ID: <20050422153522.GN1157@green.homeunix.org> In-Reply-To: <17001.6159.521697.442481@khavrinen.csail.mit.edu> References: <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> <17001.6159.521697.442481@khavrinen.csail.mit.edu>
next in thread | previous in thread | raw e-mail | index | archive | help
On Fri, Apr 22, 2005 at 11:28:15AM -0400, Garrett Wollman wrote: > <<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. Then let's fix IO_UNIT so the existing code can DTRT. -- Brian Fundakowski Feldman \'[ FreeBSD ]''''''''''\ <> green@FreeBSD.org \ The Power to Serve! \ Opinions expressed are my own. \,,,,,,,,,,,,,,,,,,,,,,\
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20050422153522.GN1157>