kern/127446: [patch] fix race in sys/dev/kbdmux/kbdmux.c

Eygene Ryabinkin rea-fbsd at codelabs.ru
Thu Sep 18 09:15:15 UTC 2008


Me again.

Thu, Sep 18, 2008 at 11:10:17AM +0400, Eygene Ryabinkin wrote:
> OK, I had tried substituting KBDMUX_LOCK/UNLOCK with Giant operations --
> it works as expected.

Tried my initial patch on some 7.0-PRERELEASE -- it locks keyboard when
geli asks for the password.  Had not much time to dig it out, will try
to do it as soon as I can.  Substituting KBDMUX_LOCK/UNLOCK with Giant
locking helps even on this FreeBSD version.

More testing needed, may be there are some other issues that aren't
revealing themselves...
-- 
Eygene
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