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Re: kern/54908: kernel semi-lock-up

The following reply was made to PR kern/54908; it has been noted by GNATS.

From: Andrew Doran <>
Subject: Re: kern/54908: kernel semi-lock-up
Date: Tue, 4 Feb 2020 23:07:58 +0000

 On Tue, Feb 04, 2020 at 11:30:03AM +0000, Martin Husemann wrote:
 >  Ok, here is better diagnostic.
 Thanks.  I think it was marginal already and a combo of recent changes
 pushed it over the edge:
 - rwlock from vnode allocated externally
 - tmpfs /tmp
 - radixtree
 - what else?
 Clearly there is also a problem in that the pagedaemon should have reclaimed
 VA - from the show all pools output there are pages to be reclaimed.

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