git: kernel - Fix int/long truncation problem in rman_reserve_resource()

Matthew Dillon dillon at crater.dragonflybsd.org
Mon Oct 20 23:10:52 PDT 2014


commit fc4394d140be3e7dba4315d0af40b2efa433164e
Author: Matthew Dillon <dillon at apollo.backplane.com>
Date:   Mon Oct 20 23:08:50 2014 -0700

    kernel - Fix int/long truncation problem in rman_reserve_resource()
    
    * Use ulmin/ulmax instead of min/max in three places, fixing a 32-bit
      truncation problem when setting up memory resources that caused our
      48-core opteron to panic.
    
    * An earlier commit adjusting count values to be more correct revealed
      the bug.
    
    * Fixes booting the kernel on our 48-core opteron w/128G of ram.

Summary of changes:
 sys/kern/subr_rman.c             |  6 +++---
 sys/platform/pc64/x86_64/nexus.c | 10 +++++++---
 2 files changed, 10 insertions(+), 6 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/fc4394d140be3e7dba4315d0af40b2efa433164e


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