When I say "submounted" I mean "a subdir of /scratch which is a different filesystem and export line on the server." on pre-NFS4, I'd be required to have a different mount command for each, e.g. mount /scratch/sub1;mount /scratch/sub2; [...] on NFS4, I can just mount -t nfs4 /scratch and it does the right thing. Command output pending. - Rich On Thu, May 21, 2009 at 10:51 AM, David Howells <dhowells@xxxxxxxxxx> wrote: > Rince <rincebrain@xxxxxxxxx> wrote: > >> I sit corrected. This only occurs for recursively submounted >> directories, e.g. /scratch/subdir1. > > What do you mean by 'submounted'? Is subdir1 a different export of FSID to > /scratch? Can you cat /proc/fs/nfsfs/volumes? It should give something like: > > [root@andromeda ~]# cat /proc/fs/nfsfs/* > NV SERVER PORT DEV FSID FSC > v4 5a9b4a12 801 0:17 7edcf8bbc93b4329 yes > > Also, can you do: > > echo 65535 >/sys/module/fscache/parameters/debug > echo 255 >/sys/module/cachefiles/parameters/debug > dd if=/scratch/subdir1/testfile of=/dev/null bs=4096 count=4 > echo 0 >/sys/module/fscache/parameters/debug > echo 0 >/sys/module/cachefiles/parameters/debug > > assuming you have CONFIG_FSCACHE_DEBUG=y and CONFIG_CACHEFILES_DEBUG=y and > capture what winds up in dmesg? > >> mount | grep /scratch > > It might be better to do: > > cat /proc/mounts | grep /scratch > > Things might show up there that don't show up when you do 'mount' without > parameters. > > David > > -- > Linux-cachefs mailing list > Linux-cachefs@xxxxxxxxxx > https://www.redhat.com/mailman/listinfo/linux-cachefs > -- A gentleman never strikes a lady with his hat on. -- Fred Allen -- Linux-cachefs mailing list Linux-cachefs@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cachefs
