Hi David,
On Tue, 12 Mar 2019, David Howells wrote:
> > My /usr/local/src mount was mounted with vers=4.2 (default), while
> > nfstest_cache was mounting its test-mount with vers=4.1! Apart from the
> > different rsize/wsize values, the version number stood out. And indeed,
> > when I mount my
Christian Kujau wrote:
> My /usr/local/src mount was mounted with vers=4.2 (default), while
> nfstest_cache was mounting its test-mount with vers=4.1! Apart from the
> different rsize/wsize values, the version number stood out. And indeed,
> when I mount my regular NFS mount /usr/local/src
On Mon, 11 Mar 2019, David Howells wrote:
> I've a couple more patches for you - one a bugfix and one that will print more
> information. They don't actually affect the problem you're seeing. I'll post
> them as replies to this message.
Thanks for the patches. I've applied all three to v5.0 and
Hi Christian,
I've a couple more patches for you - one a bugfix and one that will print more
information. They don't actually affect the problem you're seeing. I'll post
them as replies to this message.
David
On Fri, 8 Mar 2019, Christian Kujau wrote:
> Running Linux v5.0 with this patch applied does indeed still produce the
> "Duplicate cookie detected" messages, but I only ever see wrq=0 when
> running nfstest_cache:
>
>https://paste.fedoraproject.org/paste/dkav0FQzYZxE9-V7GphjAQ
And again
On Fri, 8 Mar 2019, David Howells wrote:
> See the attached for a patch that helps with certain kinds of collision,
> though I can't see that it should help with what you're seeing since the
> RELINQUISHED flag isn't set on the old cookie (fl=222, but 0x10 isn't in
> there). You can monitor the
On Fri, 8 Mar 2019, David Howells wrote:
> > $ mount | grep nfs4
> > nfs:/usr/local/src on /usr/local/src type nfs4
> > (ro,relatime,vers=4.2,rsize=1048576,wsize=1048576,namlen=255,hard,proto=tcp,timeo=600,retrans=2,sec=sys,clientaddr=192.168.56.139,local_lock=none,addr=192.168.0.115)
> >
> >
d into
the kernel log:
FS-Cache: Duplicate cookie detected
FS-Cache: O-cookie c=db33ad59 [p=4bc53500 fl=218 nc=0
na=0]
FS-Cache: O-cookie d= (null) n= (null)
FS-Cache: O-cookie o=6cf6db4f
st ([0], and there's a Fedora package too) via
"nfstest_cache --server $SERVER --client `hostname`", which then produces
a couple of these messages:
FS-Cache: Duplicate cookie detected
FS-Cache: O-cookie c=2fcc866b [p=c10c6e18 fl=222 nc=0 na=1]
FS-Cache: O-cookie d=00
David Howells wrote:
> > FS-Cache: Duplicate cookie detected
> > FS-Cache: O-cookie c=9da9dbf0 [p=1593f904 fl=222 nc=0 na=1]
> > FS-Cache: O-cookie d=287febd9 n=980c9e8a
> > FS-Cache: O-key=[8] '020001bdc0a80064'
> > FS-Cache:
Christian Kujau wrote:
> FS-Cache: Duplicate cookie detected
> FS-Cache: O-cookie c=9da9dbf0 [p=1593f904 fl=222 nc=0 na=1]
> FS-Cache: O-cookie d=287febd9 n=980c9e8a
> FS-Cache: O-key=[8] '020001bdc0a80064'
> FS-Cache: N-cookie c=
d I too am wondering if
this is something to worry about.
They _are_ logged with pr_err in fs/fscache/cookie.c, but maybe this needs
to be changed to a different loglevel?
Thanks,
Christian.
FS-Cache: Duplicate cookie detected
FS-Cache: O-cookie c=9da9dbf0 [p=1593f904 fl=222 nc=0 na=1]
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