svn commit: r190974 - head
Maksim Yevmenkin
emax at FreeBSD.org
Sun Apr 12 19:42:26 UTC 2009
Author: emax
Date: Sun Apr 12 19:42:25 2009
New Revision: 190974
URL: http://svn.freebsd.org/changeset/base/190974
Log:
Add entry about kbdmux(4) un-locking.
Modified:
head/UPDATING
Modified: head/UPDATING
==============================================================================
--- head/UPDATING Sun Apr 12 19:41:16 2009 (r190973)
+++ head/UPDATING Sun Apr 12 19:42:25 2009 (r190974)
@@ -22,6 +22,16 @@ NOTE TO PEOPLE WHO THINK THAT FreeBSD 8.
to maximize performance. (To disable malloc debugging, run
ln -s aj /etc/malloc.conf.)
+20090408:
+ Do not use Giant for kbdmux(4) locking. This is wrong and
+ apparently causing more problems than it solves. This will
+ re-open the issue where interrupt handlers may race with
+ kbdmux(4) in polling mode. Typical symptoms include (but
+ not limited to) duplicated and/or missing characters when
+ low level console functions (such as gets) are used while
+ interrupts are enabled (for example geli password prompt,
+ mountroot prompt etc.). Disabling kbdmux(4) may help.
+
20090407:
The size of structs vnet_net, vnet_inet and vnet_ipfw has changed;
kernel modules referencing any of the above need to be recompiled.
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