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Subject: [Bug 209421] Processes hangs in D state, suspfs or vofflock wchan
 under FreeBSD 10.X-11.X
Date: Fri, 09 Mar 2018 17:11:56 +0000
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D209421

lampa@fit.vutbr.cz changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |lampa@fit.vutbr.cz

--- Comment #10 from lampa@fit.vutbr.cz ---
Try sysctl -w vfs.lookup_shared=3D0

In our case it helped, lockup was in lockmgr due to heavy nfs load.

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