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

[christos%zoulas.com@localhost (Christos Zoulas)]

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

From: christos%zoulas.com@localhost (Christos Zoulas)
To: gnats-bugs%NetBSD.org@localhost, kern-bug-people%netbsd.org@localhost, 
        gnats-admin%netbsd.org@localhost, netbsd-bugs%netbsd.org@localhost, 
        gson%gson.org@localhost (Andreas Gustafsson)
Cc: 
Subject: Re: kern/48044: panic: kernel diagnostic assertion "uvmexp.swpgonly + 
npages <= uvmexp.swpginuse" failed
Date: Wed, 21 Aug 2013 10:36:12 -0400

 On Aug 21,  2:25pm, gson%gson.org@localhost (Andreas Gustafsson) wrote:
 -- Subject: Re: kern/48044: panic: kernel diagnostic assertion "uvmexp.swpgon
 
 | 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: 
 | Subject: Re: kern/48044: panic: kernel diagnostic assertion "uvmexp.swpgonly 
+ npages <= uvmexp.swpginuse" failed
 | Date: Wed, 21 Aug 2013 17:22:05 +0300
 | 
 |  The panic has now occurred three more times since I filed the original PR:
 |  
 |    
http://releng.netbsd.org/b5reports/amd64/build/2013.08.06.12.19.34/test.log
 |    
http://releng.netbsd.org/b5reports/amd64/build/2013.08.15.21.28.23/test.log
 |    
http://releng.netbsd.org/b5reports/amd64/build/2013.08.20.00.20.55/test.log
 
 The code reads:
                 KASSERT(uvmexp.swpgonly + npages <= uvmexp.swpginuse);  
                if (error != ENOMEM)
                        uvmexp.swpgonly += npages;
 
 And probably should read:
                if (error != ENOMEM) {
                        KASSERT(uvmexp.swpgonly + npages <= uvmexp.swpginuse);  
                        uvmexp.swpgonly += npages;
                }
 
 (I am not a VM expert)
 christos