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6948537: CMS: BOT walkers observe out-of-thin-air zeros on sun4v sparc/CMT
Summary: On sun4v/CMT avoid use of memset() in BOT updates so as to prevent concurrent BOT readers from seeing the phantom zeros arising from memset()'s use of BIS.
Reviewed-by: jmasa, johnc, minqi, poonam, tonyp
author | ysr |
---|---|
date | Mon, 03 May 2010 10:24:51 -0700 |
parents | a49a647afe9a |
children |
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os_family = linux arch = x86 arch_model = x86_64 os_arch = linux_x86 os_arch_model = linux_x86_64 lib_arch = amd64 compiler = gcc sysdefs = -DLINUX -D_GNU_SOURCE -DAMD64