Date: Tue, 5 Sep 2006 17:41:56 +0200 From: Oliver Lehmann <lehmann@ans-netz.de> To: Oliver Fromme <olli@lurza.secnetix.de> Cc: freebsd-fs@FreeBSD.ORG, freebsd-amd64@FreeBSD.ORG Subject: Re: NFS lockup when copying a "special" file Message-ID: <20060905174156.ed8550e3.lehmann@ans-netz.de> In-Reply-To: <200609051138.k85BcjqO059008@lurza.secnetix.de> References: <20060904201220.a2707581.lehmann@ans-netz.de> <200609051138.k85BcjqO059008@lurza.secnetix.de>
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Oliver Fromme wrote: > Did you try any of the suggestions in my previous mail? > E.g.: use TCP NFS transport instead of UDP, and/or force > NFSv2 instead of NFSv3. You could also try lowering the > MTU (although I think it's not the cause of the problem > in your case, but it might be worth a try nonetheless). I now switched to TCP NFS. > What are your NFS mount options? What is the size of the > file on which the mount became stuck? Do the contents of > the file matter? i.e. when you create a file of the same > size with dd(1) that contains only zeroes, can you copy > it to the NFS share? Mount options are: tcp,soft,nfsv3,bg,rw This time it was during playing music from nfs and scping a large file from nfs to another system - so I can't tell this time what exactly caused it. At least the 1st appearence of the problems two month ago happend when copying a file which was reproduceable. The file is still online in that tar file: http://pofo.de/tmp/file.tar - yang.xchatlog > > A bit of tcpdump output might be helpful, too. Please use > the options "-vv -s1600", otherwise it's useless. My initial mail only contained a standard tcpdump 19:18:39.582342 IP kartoffel.salatschuessel.net.2033686372 > dill.salatschuessel.net.nfs: 1472 write [|nfs] 19:18:39.582344 IP kartoffel.salatschuessel.net > dill.salatschuessel.net: udp 19:18:39.582346 IP kartoffel.salatschuessel.net > dill.salatschuessel.net: udp 19:18:39.582348 IP kartoffel.salatschuessel.net > dill.salatschuessel.net: udp -- Oliver Lehmann http://www.pofo.de/ http://wishlist.ans-netz.de/
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