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[ Upstream commit304791255a] If the initial attempt at trunking detection using the krb5i auth flavor fails with -EACCES, -NFS4ERR_CLID_INUSE, or -NFS4ERR_WRONGSEC, then the NFS client tries again using auth_sys, cloning the rpc_clnt in the process. If this second attempt at trunking detection succeeds, then the resulting nfs_client->cl_rpcclient winds up having cl_max_connect=0 and subsequent attempts to add additional transport connections to the rpc_clnt will fail with a message similar to the following being logged: [502044.312640] SUNRPC: reached max allowed number (0) did not add transport to server: 192.168.122.3 Signed-off-by: Scott Mayhew <smayhew@redhat.com> Fixes:dc48e0abee("SUNRPC enforce creation of no more than max_connect xprts") Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.