The following reply was made to PR kern/33185; it has been noted by GNATS.

From: Izumi Tsutsui <tsutsui@ceres.dti.ne.jp>
To: yamt@mwd.biglobe.ne.jp
Cc: gnats-bugs@NetBSD.org, tech-kern@NetBSD.org,
	tsutsui@ceres.dti.ne.jp
Subject: Re: kern/33185: kva shortage problems
Date: Thu, 11 May 2006 20:08:44 +0900

 yamt@mwd.biglobe.ne.jp wrote:
 
 > > > a concern is kva fragmentation.
 > > 
 > > I'm not a VM expert, but "kva fragmentation" reminds me
 > > STE shortage on 68040 and sun3x pmaps...
 
 > i'm not sure what's "STE shortage".  can you explain with MI terms? :-)
 
 Well, sun3x uses 7-6-6-13 bits 3-level MMU, and memory
 for each Segment Table Entry is allocated statically.
 Recently (for a year?) I often got "get_x_tabe: out of X tables."
 panics on my 3/80 and I just thought it was caused by kva
 fragmentation.
 (yes, just sun3x pmap should be fixed, but it's not easy...)
 
 > i don't think my patch makes kva fragmentation much worse.
 
 Ok, then there is no problem on your patch.
 Thank you for your explanation.
 ---
 Izumi Tsutsui