git: kernel - Fix lockup when debug.ktr.resynchronize is enabled
commit f697b97d96e73922ab1da683660493e676dcf0a5
Author: Matthew Dillon <dillon@apollo.backplane.com>
Date: Fri Jan 21 10:02:31 2011 -0800
kernel - Fix lockup when debug.ktr.resynchronize is enabled
* The TSC resynchronization code can livelock the system due to the
manual hard loops it runs to try to synchronize the TSC's on all
cpus.
* Change the code to use the cpusync API. It will be less accurate but
it should no longer result in system livelocks.
Summary of changes:
sys/kern/kern_ktr.c | 84 +++++++++++++++-----------------------------------
1 files changed, 25 insertions(+), 59 deletions(-)
http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/f697b97d96e73922ab1da683660493e676dcf0a5
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