HEADSUP: arp-v2 has been committed

[Mike Tancsa]

At 01:34 AM 12/15/2008, Qing Li wrote:

>Hi All,
>
>The arp-v2 changes have been committed into HEAD.
>Please report problems to me and Kip Macy.

Not sure if its related or not, but if I create and destroy a lagg 
port, I get a panic
e.g.


0[current]# ifconfig lagg0 laggproto failover laggport igb0 laggport igb1
0[current]#
0[current]# ifconfig lagg0 laggproto failover laggport igb0 laggport igb1
ifconfig: SIOCSLAGGPORT: Device busy
1[current]# ifconfig lagg0 destroy


panic: _rw_rlock (ifnet): wlock already held @ /usr/src/sys/net/if.c:200
cpuid = 3
KDB: enter: panic
[thread pid 1239 tid 100065 ]
Stopped at      kdb_enter+0x3a: movl    $0,kdb_why
db> bt
Tracing pid 1239 tid 100065 td 0xc45f1b40
kdb_enter(3232454813,3232454813,3232453528,3866974928,3,...) at kdb_enter+58
panic(3232453528,3232060900,3232514293,3232513870,200,...) at panic+310
_rw_rlock(3235193604,3232513870,200,3292329984,3866975012,...) at _rw_rlock+118
ifnet_byindex(6,3232513870,498,3297629696,3292329984,...) at ifnet_byindex+39
if_free_type(3292329984,6,279,3229646306,0,...) at if_free_type+156
lagg_clone_destroy(3292329984,3292329984,3292329984,3299962240,3866975112,...) 
at lagg_clone_destroy+146
ifc_simple_destroy(3299962240,3292329984,3232515110,213,45,...) at 
ifc_simple_destroy+39
if_clone_destroyif(3299962240,3292329984,3232515110,191,0,...) at 
if_clone_destroyif+225
if_clone_destroy(3292314144,412,3235009472,3294567396,3235009472,...) 
at if_clone_destroy+162
ifioctl(3296010632,2149607801,3292314144,3294567232,2149607801,...) 
at ifioctl+278
soo_ioctl(3294877664,2149607801,3292314144,3297629184,3294567232,...) 
at soo_ioctl+919
kern_ioctl(3294567232,3,2149607801,3292314144,8000192,...) at kern_ioctl+477
ioctl(3294567232,3866975480,12,3232296124,3233288592,...) at ioctl+308
syscall(3866975544) at syscall+675
Xint0x80_syscall() at Xint0x80_syscall+32
--- syscall (54, FreeBSD ELF32, ioctl), eip = 672834707, esp = 
3217024108, ebp = 3217024136 ---
db>
db> show alllocks
Process 1239 (ifconfig) thread 0xc45f1b40 (100065)
exclusive rw ifnet (ifnet) r = 0 (0xc0d52304) locked @ 
/usr/src/sys/net/if.c:498
Process 1135 (sshd) thread 0xc462e000 (100113)
exclusive sx so_rcv_sx (so_rcv_sx) r = 0 (0xc475920c) locked @ 
/usr/src/sys/kern/uipc_sockbuf.c:148
Process 0 (kernel) thread 0xc4382900 (100042)
exclusive sleep mutex igb1 (IGB Core Lock) r = 0 (0xc43622dc) locked 
@ /usr/src/sys/dev/e1000/if_igb.c:1224
db>