Date: Sun, 12 Apr 2009 19:42:25 +0000 (UTC) From: Maksim Yevmenkin <emax@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r190974 - head Message-ID: <200904121942.n3CJgP9w037008@svn.freebsd.org>
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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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