On Mon, 2010-10-11 at 14:50 -0400, Jason Kendall wrote: > > On 10-10-11 01:19 PM, Ben Hutchings wrote: > > On Mon, Oct 11, 2010 at 12:49:33PM -0400, Jason Kendall wrote: > > > >> Package: linux-2.6 > >> Severity: important > >> Tags: upstream > >> > > Which version? > > > uname was further in the report (i used reportbug so It should have been > there. At the time of report it was 2.6.32-5-686-bigmem.
That's not the package version but the ABI version. > >> 2. Duplicate filenames are given when doing an "ls" > >> 3. Trigger happens when a rename (mv) happens on a directory with a large > >> number of files. > >> 4. Does not matter which machine does the rename/mv (Any box connected to > >> the NFS) the duplicate filenames still show up under DomU > >> 5. Does not appear to happen to directories with a limited number of > >> files. I have one directory with> 9k files which this does happen on > >> (mail directory) > >> > > This is probably an effect of the NFS block size - any directory smaller > > than a single block is likely to be readable atomically. > > > > > Upped the block size and same issue. > (rw,rsize=32768,wsize=32768,hard,fg,nolock,nfsvers=3,tcp,actimeo=0,addr=10.0.0.7). > > Prior, it was just mounted with defaults I think that's the default block size now. [...] > Looking at a pcap, NFSClient doesn't appear to be asking the server for > the filenames, however, there is a large number of "ACCESS" and > "GETATTR" requests. Most are returned as "Directory", a few are > returned as "Regular File". Of the Regular files, there is 3 returned, > all the same file handle, and appear to be the same stats. There is > matching GETATTR calls prior to each Regular File Reply, and a number of > requests in between each one. > > touching the file to update the mtime does not resolve the issue. [...] What about touching the directory? Ben. -- Ben Hutchings Once a job is fouled up, anything done to improve it makes it worse.
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