ozaki-r 8f4376cb6f Fix race condition on ifqueue used by traditional netisr ... If a underlying network device driver supports MSI/MSI-X, RX interrupts can be delivered to arbitrary CPUs. This means that Layer 2 subroutines such as ether_input (softint) and subsequent Layer 3 subroutines (softint) which are called via traditional netisr can be dispatched on an arbitrary CPU. Layer 2 subroutines now run without any locks (expected) and so a Layer 2 subroutine and a Layer 3 subroutine can run in parallel. There is a shared data between a Layer 2 routine and a Layer 3 routine, that is ifqueue and IF_ENQUEUE (from L2) and IF_DEQUEUE (from L3) on it are racy now. To fix the race condition, use ifqueue#ifq_lock to protect ifqueue instead of splnet that is meaningless now. The same race condition exists in route_intr. Fix it as well. Reviewed by knakahara@		2016-10-03 11:06:06 +00:00
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aarp.c
aarp.h
at_control.c
at_extern.h
at_print.c
at_proto.c
at_rmx.c
at_var.h
at.h
ddp_input.c	Fix race condition on ifqueue used by traditional netisr	2016-10-03 11:06:06 +00:00
ddp_output.c
ddp_private.h
ddp_usrreq.c	Fix race condition on ifqueue used by traditional netisr	2016-10-03 11:06:06 +00:00
ddp_var.h
ddp.h
files.netatalk
Makefile
phase2.h