K 10
svn:author
V 7
iedowse
K 8
svn:date
V 27
2003-03-28T02:50:10.000000Z
K 7
svn:log
V 493
Add a checksum to the kernel message buffer, and update it every
time a character is written. Use this at boot time to reject the
existing buffer contents if they are corrupt. This fixes a problem
seen on some hardware (especially laptops) where the message buffer
gets partially corrupted during a short power cycle or reset, but
the msgbuf structure is left intact so it gets reused, resulting
in random junk and control characters appearing in dmesg and
/var/log/messages.

PR:		kern/28497

END