On 07-Mar-01 John Baldwin wrote:
> jhb         2001/03/06 18:59:54 PST
>   Modified files:
>     sys/kern             kern_sig.c 
>   Log:
>   - Proc locking.  Most of signal handling is now MP safe and doesn't require
>     Giant.  The only exception is the CANSIGNAL() macro.  Unlocking the proc
>     lock around sendsig() in trapsignal() is also questionable.  Note that
>     the functions sigexit(), psignal(), and issignal() must be called with
>     the proc lock of the process in question held.  postsig() and
>     trapsignal() should not be called with the proc lock held, but they
>     also do not require Giant anymore either.
>   - Remove spl's that are now no longer needed as they are fully replaced.
>   Revision  Changes    Path
>   1.110     +163 -71   src/sys/kern/kern_sig.c

Until I finish committing all the changes to lock the process when calling
psignal() and sigexit(), a kernel with INVARIANTS will panic.  I'll send
another message when I'm done.


John Baldwin <[EMAIL PROTECTED]> -- http://www.FreeBSD.org/~jhb/
PGP Key: http://www.baldwin.cx/~john/pgpkey.asc
"Power Users Use the Power to Serve!"  -  http://www.FreeBSD.org/

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