[Bug 297233] nfs: panic: general protection fault

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D297233

Rick Macklem <[email protected]> changed:

           What    |Removed                     |Added
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                 CC|                            |[email protected]

--- Comment #1 from Rick Macklem <[email protected]> ---
Since you are using minorversion=3D0, try a mount
without nfscbd running. (Callbacks and delegations
are never going to work correctly for NFSv4.0.)

The expired case should never really happen.
It indicates that there was a network patitioning
between client and server that exceeded the lease
duration (or the Illumos server is broken and replied
NFS4ERR_EXPIRED when it shouldn't have).

The code in nfscl_hasexpired() is 20years old and
never gets exercised. The crash appears to be a messed
up linked list for Opens, but I wouldn't dare to guess
why that might happen.

If the crash happens again when nfscbd(8) is not running
(and not running when the mount is done), please add a comment here.

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