Re: [mpls-linux-general] ldp crash..??

[James R. L. <jl...@mi...>]

When you experience a crash that results in a core file.  Start up gdb with
that core file (gdb mplsd core) and the do a 'where'.  That will print the
stack at the time of the failure.  Either send me the stack dump or go over
to sf.net/projects/mpls-linux/ and submit a bug report with the stack trace
and the info you have gathered below.

Thanks

On Sat, Dec 14, 2002 at 03:15:43PM +0900, Kwangwoo Lee wrote:
> [MPLS network info]
> zebra version : 0.93b
> ldpportable version : 0.305
> mpls-linux version : 1.172
>=20
>                                    +--------+
>                                eth1|        |eth0 =20
>                  +-----------------+Router E+--------------+
>                 /                  |        |               \  eth2
>     +--------+ /                   +--------+                \ +--------+
>     |        +/                                               \+        |=
eth1
> ----+Router A|                                                 |Router D+=
---- =20
>     |        +\                                               /+        |
>     +--------+ \         +--------+      +--------+          / +--------+
>                 \        |        |      |        |         /  eth0
>                  +-------+Router B+------+Router C+--------+
>                          |        |      |        |eth1
>                          +--------+      +--------+
>=20
> hello...
> this is our mpls network topology.
> if mplsd run on each router, a certain mpls deamon is killed.
>=20
> mpls deamons of Router B and Router C and router E run well.
> but,=20
> mpls deamon of "Router D" run for a second=20
> then,=20
> it is killed soon.
> (In this network, we disabled "router A".=20
>  so don't care of it. and At route D, eth1 was "not enabled" to use mpls.)
> why???
>=20
> we appended gdb excution result.
>=20
> yesterday, error message
> ------------------------
> mplsd: ldp_init.c:76: MPLS_ASSERT(0)=20
> --->maybe it is because of "ldp_init.c 's line 70 #if MPLS_USE_LSR" ???
> =20
> ------------------------
> today, two type error messages
> ------------------------
> mplsd: ldp_attr.c:306: ldp_attr_delete: Assertion `a->in_tree =3D=3D MPLS=
_BOOL_FALSE' failed.
> Program received signal SIGABRT, Aborted.
> 0x400f8781 in kill () from /lib/libc.so.6      =20
> ------------------------
> 224         thread_call(&thread);
> (gdb) n
> ldp_get_session_by_next_hop: NH_OTHER 0x80c8788
> ldp_get_next_hop_session_for_fec: 0x80c8788
> _ldp_global_add_outlabel
> ldp_label_mapping_with_xc: enter
> mpls_mpls_xconnect_add: 10000 <-> 10007
> ldp_label_mapping_with_xc: exit
> ldp_mpls_in2out_del: 10000 <-> 10007
> session delete
> 225       }
> (gdb) n
> 224         thread_call(&thread);
> (gdb) n
> ldp_label_mapping_with_xc: enter
>=20
> Program received signal SIGPIPE, Broken pipe.
> 0x401923e4 in write () from /lib/libc.so.6
> ----------------------------
>=20
> what happen??
> i don't know why....
>=20
> while gdb is running,=20
> we find these messages
>  adj delete
>  session delete
> if adj means adjacency, adjacent router don't die.=20
> =FF=FF=FF=FF=FF=FF=FF=FF=FF=FF=FF=FF=FF=FF=FF=FF=FF=FF=FF=FF=FF=FF=FF=FF=
=FF=FF=FF=FF=FF=FF=FF=FF=FF=FF=FF=FF=FF=FF=FF=FF=FF=D3=86+,=7F=F9=DE=B5=E9=
=9A=8AX=AC=B2=9A'=B2=8A=DEu=BC=FFZ+a=1A=B7=9A=B4=FA0z=BF=C2=A2g=AC=1A=B7=9A=
=B5=17=AC=A6=89=EC=89=B8=A5=8A=DC=8By=AA=E7=B6=8B=AC{*.=AE=9A0z=B6=AD9 =CD=
=FE=C1=E2=82=13=DE=AD=FA+=99=A9=DCx*&=A6=EBb=9E=00=A1jy=DE=96=1Bm=A7=FF=FF=
=86=97=FFu=EB=DC=85=A9=E7z_=E8=AE=0F=FF=FF=FF=FF=FF=FF=FF=FF=FF=FF=FF=FF=FF=
=FF=FF=FF=FF=FF=FF=FF=FF=FF=FF=FF=FF=FF=FF=FF=FF=FF=FF=FF=FF=FF=FF=F9=A9=96=
=CF=E5=8A{=B1=FE=07=A7z=B6=A5=99=A8=A5=8Ax%=8A=CBf=A6[=FF=96)=EE=C7=F8=1E=
=9D=EA=DA=97=F9b=B2=DB=FF=B2=8B=ABq=E7=E8=AE=07=FF=9D=EBa=B6=DAl=FF=FF=E5=
=8A=CBl=FE=CA.=AD=C7=9F=A2=B8=1E=FEw=AD=FEX=AC=B6=CF=E5=8A=CBb=9D=FA?=9A=99=
l=FEX=A7=BB=1F=E0zw=AB

--=20
James R. Leu