Re: kern/51254: uvm assertion "!topdown || hint <= orig_hint" failed

[Rin Okuyama <rokuyama.rk%gmail.com@localhost>]

The following reply was made to PR kern/51254; it has been noted by GNATS.

From: Rin Okuyama <rokuyama.rk%gmail.com@localhost>
To: Taylor R Campbell <riastradh%NetBSD.org@localhost>
Cc: gnats-bugs%NetBSD.org@localhost, netbsd-bugs%NetBSD.org@localhost,
 Martin Husemann <martin%duskware.de@localhost>
Subject: Re: kern/51254: uvm assertion "!topdown || hint <= orig_hint" failed
Date: Sun, 10 Sep 2023 19:50:48 +0900

 On 2023/09/07 22:02, Taylor R Campbell wrote:
 > Were you able to test the patch I suggested last year, or did you find
 > some flaw in the analysis I posted it with?
 > 
 > -                       hint = entry->next->start - length;
 > +                       hint = MIN(orig_hint, entry->next->start - length);
 
 Oops, sorry, I didn't notice your message somehow.
 
 Even with this patch, that KASSERT fires unfortunately.
 
 Full log with UVMHIST is provided here:
 https://gist.github.com/rokuyama/b812a0f27c0354f6fc5f67c0c0be2929
 
 Thanks,
 rin