Re: kern/48044: panic: kernel diagnostic assertion "uvmexp.swpgonly + npages <= uvmexp.swpginuse" failed

[Andreas Gustafsson <gson%gson.org@localhost>]

The following reply was made to PR kern/48044; it has been noted by GNATS.

From: Andreas Gustafsson <gson%gson.org@localhost>
To: gnats-bugs%NetBSD.org@localhost
Cc: christos%NetBSD.org@localhost
Subject: Re: kern/48044: panic: kernel diagnostic assertion "uvmexp.swpgonly + npages <= uvmexp.swpginuse" failed
Date: Tue, 19 Nov 2019 10:26:36 +0200

 In March 2014, I wrote:
 > Presumably this was fixed by christos' commit of uvm_pager.c 1.110.
 
 I was wrong - it wasn't fixed after all.  Last night, my main testing
 host running a 9_0BETA/amd64 from early September crashed with another
 "uvmexp.swpgonly + npages <= uvmexp.swpginuse" panic, and inspecting
 the logs from the TNF testbed shows several such panics more recent
 than uvm_pager.c 1.110:
 
   http://releng.netbsd.org/b5reports/amd64/2014/2014.04.17.23.15.27/test.log
   http://releng.netbsd.org/b5reports/amd64/2014/2014.04.22.14.20.03/test.log
   http://releng.netbsd.org/b5reports/amd64/2017/2017.09.02.21.27.08/test.log
   http://releng.netbsd.org/b5reports/amd64/2018/2018.07.28.20.26.13/test.log
 
 -- 
 Andreas Gustafsson, gson%gson.org@localhost