K 10
svn:author
V 7
asomers
K 8
svn:date
V 27
2014-05-02T16:24:09.332254Z
K 7
svn:log
V 517
Fix a panic caused by doing "ifconfig -am" while a lagg is being destroyed.
The thread that is destroying the lagg has already set sc->sc_psc=NULL when
the "ifconfig -am" thread gets to lacp_req().  It tries to dereference
sc->sc_psc and panics.  The solution is for lacp_req() to check the value of
sc->sc_psc.  If NULL, harmlessly return an lacp_opreq structure full of
zeros.  Full details in GNATS.

PR:		kern/189003
Reviewed by:	timeout on freebsd-net@
MFC after:	3 weeks
Sponsored by:	Spectra Logic Corporation

END