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Re: port-sh3/55491: pmap corruption

The following reply was made to PR port-sh3/55491; it has been noted by GNATS.

From: Martin Husemann <>
Subject: Re: port-sh3/55491: pmap corruption
Date: Fri, 19 Feb 2021 19:31:27 +0100

 When the endless loop in this PR happens
 is called and in the "default:" remove-all case. It loops over
 all page entries in
 	while ((pv = SLIST_FIRST(&pvh->pvh_head)) != NULL)
 and tries to pmap_remove() each VA, but in the bug case there is a VA
 in the list for which no mapping exists.
 I have no idea yet how this VA gets into the list (or what happened
 to it/the mapping).

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