[Bug 256806] panic: vm_page_free_prep: freeing mapped page

From: <bugzilla-noreply_at_freebsd.org>
Date: Thu, 24 Jun 2021 14:54:12 +0000
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=256806

Mark Johnston <markj_at_FreeBSD.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|New                         |Open

--- Comment #5 from Mark Johnston <markj_at_FreeBSD.org> ---
So OBJ_ONEMAPPING is set, and vm_map_delete() should have unmapped the range. 
And yet a page in that range is still mapped.  PIP is non-zero and the object
has no backing object.  Could you finally show:

(kgdb) f 9
(kgdb) p/x *entry

?

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Received on Thu Jun 24 2021 - 14:54:12 UTC

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