Re: lib/54135: sparc userland can not deal with 8k page size

[Martin Husemann <martin%duskware.de@localhost>]

The following reply was made to PR lib/54135; it has been noted by GNATS.

From: Martin Husemann <martin%duskware.de@localhost>
To: Christos Zoulas <christos%zoulas.com@localhost>
Cc: gnats-bugs%netbsd.org@localhost
Subject: Re: lib/54135: sparc userland can not deal with 8k page size
Date: Thu, 25 Apr 2019 16:17:50 +0200

 On Thu, Apr 25, 2019 at 07:39:41AM -0400, Christos Zoulas wrote:
 > This is proving a tough nut to crack. Perhaps going at it backwards is easier (revert all of it and assign os_page = PAGE after the first test.
 
 I think we are doing it wrong. The comments in jemalloc code all seem to
 suggest that the real page size must be <= the PAGE define, but we are
 doing:
 
 #define LG_PAGE MIN_PAGE_SHIFT
 
 instead of MAX_PAGE_SHIFT. Why is it this way around?
 
 This issue should also break userland on Sun4 systems (i.e. not only on
 sparc64 kernels).
 
 Martin