I am seeing the following panic trying to use PPPoE.

(kgdb) bt
#0  doadump () at pcpu.h:246
#1  0xc085a77e in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:420
#2  0xc085aa52 in panic (fmt=Variable "fmt" is not available.
) at /usr/src/sys/kern/kern_shutdown.c:576
#3  0xc04ba317 in db_panic (addr=Could not find the frame base for "db_panic".
) at /usr/src/sys/ddb/db_command.c:478
#4  0xc04ba941 in db_command (last_cmdp=0xc0cf9cdc, cmd_table=0x0, dopager=1) 
at /usr/src/sys/ddb/db_command.c:445
#5  0xc04baa9a in db_command_loop () at /usr/src/sys/ddb/db_command.c:498
#6  0xc04bc8fd in db_trap (type=3, code=0) at /usr/src/sys/ddb/db_main.c:229
#7  0xc0889256 in kdb_trap (type=3, code=0, tf=0xc781ab18) at 
#8  0xc0b182bb in trap (frame=0xc781ab18) at /usr/src/sys/i386/i386/trap.c:685
#9  0xc0afabeb in calltrap () at /usr/src/sys/i386/i386/exception.s:165
#10 0xc08893da in kdb_enter (why=0xc0be3714 "panic", msg=0xc0be3714 "panic") at 
#11 0xc085aa36 in panic (fmt=0xc2718513 "in %s:%d %s()\n vnet=%p curvnet=%p") 
at /usr/src/sys/kern/kern_shutdown.c:559
#12 0xc27114c8 in ng_ID2noderef (ID=4) at 
#13 0xc2712202 in ng_address_ID (here=0xc2666380, item=0xc27ade00, ID=4, 
retaddr=0) at 
#14 0xc27a07b0 in ng_ether_rcvmsg (node=0xc2666380, item=0xc27ade00, 
lasthook=0x0) at 
#15 0xc271327d in ng_apply_item (node=0xc2666380, item=0xc27ade00, rw=1) at 
#16 0xc27146f6 in ngthread (arg=0x0) at 
#17 0xc08342c8 in fork_exit (callout=0xc2714570 <ngthread>, arg=0x0, 
frame=0xc781ad38) at /usr/src/sys/kern/kern_fork.c:830
#18 0xc0afac60 in fork_trampoline () at /usr/src/sys/i386/i386/exception.s:270
(kgdb) list ng_base.c:816
811                             Node ID handling
813     static node_p
814     ng_ID2noderef(ng_ID_t ID)
815     {
816             INIT_VNET_NETGRAPH(curvnet);
817             node_p node;
818             mtx_lock(&ng_idhash_mtx);
819             NG_IDHASH_FIND(ID, node);
820             if(node)

I use the following ppp.conf:

lab# cat /etc/ppp/ppp.conf
 set device PPPoE:le1
 set authname "x...@xxxx"
 set authkey "xxxxxxx"
 enable lqr echo
 set cd 5
 set dial
 set login
 set redial 0 0
 enable dns
 add default HISADDR


To reproduce the panic, you have to use the above ppp.conf,
start ppp(8), and then in the ppp "console" type "open". It
panics very early, that is, you don't need a PPPoE "server"
to reproduce it.

My kernel is GENERIC + VIMAGE - SCTP from a few days old -CURRENT.

Just reporting, Nikos
freebsd-virtualization@freebsd.org mailing list
To unsubscribe, send any mail to 

Reply via email to