Netgraph/mpd5 stability issues

[Eugene Grosbein]

Something new in my logs yesterday:

Mar  1 16:06:38 k-45-pc-1 kernel: Accessing freed node node: ID [2e5c7a]: type 'tee', 0 hooks, flags 0x9, 0 refs, mpd11699-vlan373-781-lt:
Mar  1 16:06:38 k-45-pc-1 kernel: Last active @ /home/src/sys/netgraph/ng_base.c, line 2257
Mar  1 16:06:38 k-45-pc-1 kernel: problem discovered at file /home/src/sys/netgraph/ng_base.c, line 3621
Mar  1 16:06:38 k-45-pc-1 kernel: Accessing freed node node: ID [2e5c7a]: type 'tee', 0 hooks, flags 0x9, 1 refs, mpd11699-vlan373-781-lt:
Mar  1 16:06:38 k-45-pc-1 kernel: Last active @ /home/src/sys/netgraph/ng_base.c, line 3621
Mar  1 16:06:38 k-45-pc-1 kernel: problem discovered at file /home/src/sys/netgraph/ng_base.c, line 2377
Mar  1 16:06:38 k-45-pc-1 kernel: Accessing freed node node: ID [2e5c7a]: type 'tee', 0 hooks, flags 0x9, 1 refs, mpd11699-vlan373-781-lt:
Mar  1 16:06:38 k-45-pc-1 kernel: Last active @ /home/src/sys/netgraph/ng_base.c, line 2377
Mar  1 16:06:38 k-45-pc-1 kernel: problem discovered at file /home/src/sys/netgraph/ng_base.c, line 2257

This is the same periodically panicing 8.2-PRERELEASE with NETGRAPH_DEBUG and couple of patches
from Gleb and Julian. Still cannot get crashdump (system hangs while dumping core).

Eugene Grosbein