diff options
author | emax <emax@FreeBSD.org> | 2009-04-12 19:42:25 +0000 |
---|---|---|
committer | emax <emax@FreeBSD.org> | 2009-04-12 19:42:25 +0000 |
commit | ac9b8ff225251a6e8efd633d8f75c233c05b7d82 (patch) | |
tree | 785b96abf454f35ed3e033b60d57b8f90678b718 | |
parent | bb19ddd3ae86245d3ec07e01dddd703df190e108 (diff) | |
download | FreeBSD-src-ac9b8ff225251a6e8efd633d8f75c233c05b7d82.zip FreeBSD-src-ac9b8ff225251a6e8efd633d8f75c233c05b7d82.tar.gz |
Add entry about kbdmux(4) un-locking.
-rw-r--r-- | UPDATING | 10 |
1 files changed, 10 insertions, 0 deletions
@@ -22,6 +22,16 @@ NOTE TO PEOPLE WHO THINK THAT FreeBSD 8.x IS SLOW: 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. |