ng_ether(4) panic with ef(4)
From: Charlie Root (root_at_swp.bspu.secna.ru)
Date: 06/08/04
- Previous message: Peter Ulrich Kruppa: "Re: HEADSUP! netgraph Metadata changing."
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Date: Tue, 8 Jun 2004 10:57:14 +0700 To: archie@freebsd.org, bp@freebsd.org
helo.
if if_ef.ko was loaded before ng_ether.ko or if i have "device ef" in
kernel and ng_ether.ko loaded as module then IPXrouted panic my kernel
for 15-30 seconds after boot.
~# kldstat
Id Refs Address Size Name
1 37 0xc0400000 34c150 kernel
2 1 0xc074d000 5e40 vesa.ko
3 1 0xc0753000 2d0c if_ef.ko
4 2 0xc0756000 1ac7c miibus.ko
5 1 0xc0771000 b2b4 if_fxp.ko
6 2 0xc077d000 1e58c snd_pcm.ko
7 1 0xc079c000 67d8 snd_es137x.ko
8 1 0xc07a3000 b8b4 random.ko
9 1 0xc07af000 51b48 acpi.ko
10 1 0xc0801000 7d40 fdc.ko
11 1 0xc0809000 3bcc speaker.ko
12 1 0xc1d81000 c7000 vinum.ko
13 2 0xc1eea000 5000 procfs.ko
14 2 0xc1eef000 6000 pseudofs.ko
15 1 0xc1efb000 6000 linprocfs.ko
16 4 0xc1f01000 19000 linux.ko
17 1 0xc1f27000 4000 sysvmsg.ko
18 1 0xc1f2f000 5000 sysvsem.ko
19 1 0xc1f34000 4000 sysvshm.ko
20 1 0xc1f52000 17000 ipl.ko
21 1 0xc1faa000 2f000 nfsclient.ko
22 1 0xc2013000 1b000 nfsserver.ko
23 1 0xc2054000 22000 usb.ko
24 1 0xc20b3000 2000 snake_saver.ko
25 1 0xc20f2000 9000 vmmon_up.ko
26 1 0xc20fb000 2000 vmnet.ko
27 1 0xc20fd000 4000 if_tap.ko
28 5 0xc2101000 12000 netgraph.ko
29 1 0xc2118000 4000 ng_socket.ko
30 2 0xc211d000 4000 ng_ether.ko
31 1 0xc2121000 3000 ng_tee.ko
32 1 0xc2125000 5000 ng_bridge.ko
33 1 0xc221c000 2000 rtc.ko
~# ifconfig
fxp0: flags=9943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,LINK0,MULTICAST> mtu 1500
inet 212.192.2.73 netmask 0xffffffe0 broadcast 212.192.2.95
ether 00:03:47:05:6f:5b
media: Ethernet autoselect (100baseTX <full-duplex>)
status: active
fxp0f0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
ipx 10000H.347056f5b
ether 00:03:47:05:6f:5b
fxp0f1: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
ipx 10001H.347056f5b
ether 00:03:47:05:6f:5b
fxp0f2: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
ipx 10002H.347056f5b
ether 00:03:47:05:6f:5b
fxp0f3: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
ipx 10003H.347056f5b
ether 00:03:47:05:6f:5b
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 16384
inet 127.0.0.1 netmask 0xff000000
inet 10.250.0.2 netmask 0xffffffff
ipx 20040605H.1H
vmnet0: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> mtu 1500
ether 00:bd:a7:20:00:00
vmnet1: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> mtu 1500
ether 00:bd:b1:20:00:01
vmnet2: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> mtu 1500
ether 00:bd:bb:20:00:02
vmnet3: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> mtu 1500
ether 00:bd:c6:20:00:03
/usr/src/sys/i386/compile/aj_kernel# gdb -k kernel
GNU gdb 5.2.1 (FreeBSD)
Copyright 2002 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB. Type "show warranty" for details.
This GDB was configured as "i386-unknown-freebsd"...
(no debugging symbols found)...
(kgdb) file kernel.debug
Reading symbols from kernel.debug...done.
(kgdb) target remote /dev/uart0
Remote debugging using /dev/uart0
0xc211e5bd in ?? ()
warning: Unable to find dynamic linker breakpoint function.
GDB will be unable to debug shared library initializers
and track explicitly loaded dynamic code.
warning: shared library handler failed to enable breakpoint
(kgdb) bt
#0 0xc211e5bd in ?? ()
#1 0xc05301fe in ether_output (ifp=0x0, m=0xc16ef000, dst=0xce651b20, rt0=0x0)
at ../../../net/if_ethersubr.c:303
#2 0xc0576add in ipx_outputfl (m0=0xc16ef000, ro=0x0, flags=48)
at ../../../netipx/ipx_outputfl.c:134
#3 0xc0577a71 in ipx_output (ipxp=0xc200ba00, m0=0xc16ef0be)
at ../../../netipx/ipx_usrreq.c:310
#4 0xc0577ec2 in ipx_send (so=0xc16e1200, flags=0, m=0xc16ef000,
nam=0xc21240a0, control=0x0, td=0xc16e1200)
at ../../../netipx/ipx_usrreq.c:559
#5 0xc04ff08d in sosend (so=0xc1f755a0, addr=0xc21240a0, uio=0xce651c4c,
top=0xc16ef000, control=0x0, flags=4, td=0xc1d5d3c0)
at ../../../kern/uipc_socket.c:715
#6 0xc05038cc in kern_sendit (td=0xc1d5d3c0, s=4, mp=0xce651cc4,
flags=-1049751040, control=0xc16e1200) at ../../../kern/uipc_syscalls.c:723
#7 0xc050371e in sendit (td=0xc16e1200, s=-1049751040, mp=0xce651cc4,
flags=-1049751040) at ../../../kern/uipc_syscalls.c:663
#8 0xc0503a5b in sendto (td=0xc16e1200, uap=0xc1d5d3c0)
at ../../../kern/uipc_syscalls.c:784
#9 0xc060e2a0 in syscall (frame=
{tf_fs = 47, tf_es = 47, tf_ds = 47, tf_edi = 34, tf_esi = 34, tf_ebp = -1077940968, tf_isp = -832234124, tf_ebx = -1077941008, tf_edx = 4, tf_ecx = 1, tf_eax = 133, tf_trapno = 12, tf_err = 2, tf_eip = 671938895, tf_cs = 31, tf_eflags = 518, tf_esp = -1077941044, tf_ss = 47}) at ../../../i386/i386/trap.c:1010
---Type <return> to continue, or q <return> to quit---
#10 0xc05fefed in Xint0x80_syscall () at {standard input}:136
#11 0x0804a9ae in ?? ()
#12 0x0804a60e in ?? ()
#13 0x0804befb in ?? ()
#14 0x0804a019 in ?? ()
#15 0x08048d22 in ?? ()
(kgdb) bt full
#0 0xc211e5bd in ?? ()
No symbol table info available.
#1 0xc05301fe in ether_output (ifp=0x0, m=0xc16ef000, dst=0xce651b20, rt0=0x0)
at ../../../net/if_ethersubr.c:303
type = 18432
error = 0
hdrcmplt = 0
esrc = "?\002\0\0àJ"
edst = "ÿÿÿÿÿÿ"
rt = (struct rtentry *) 0x0
eh = (struct ether_header *) 0x0
loop_copy = 0
hlen = 22
ac = (struct arpcom *) 0xc16e1200
#2 0xc0576add in ipx_outputfl (m0=0xc16ef000, ro=0x0, flags=48)
at ../../../netipx/ipx_outputfl.c:134
ipx = (struct ipx *) 0xce651b20
ifp = (struct ifnet *) 0xc16e1200
error = 13
dst = (struct sockaddr_ipx *) 0x0
ipxroute = {ro_rt = 0x0, ro_dst = {sa_len = 16 '\020',
sa_family = 23 '\027', sa_data = "\0\001\0\003ÿÿÿÿÿÿ\0\0\0"}}
#3 0xc0577a71 in ipx_output (ipxp=0xc200ba00, m0=0xc16ef0be)
at ../../../netipx/ipx_usrreq.c:310
ipx = (struct ipx *) 0xc16ef0be
so = (struct socket *) 0xc1d5d3c0
len = 64
ro = (struct route *) 0xc16e1200
m = (struct mbuf *) 0xc16ef000
mprev = (struct mbuf *) 0xc1d5d3c0
#4 0xc0577ec2 in ipx_send (so=0xc16e1200, flags=0, m=0xc16ef000,
nam=0xc21240a0, control=0x0, td=0xc16e1200)
at ../../../netipx/ipx_usrreq.c:559
error = 0
ipxp = (struct ipxpcb *) 0xc200ba00
laddr = {x_net = {c_net = "\0\0\0", s_net = {0, 0}}, x_host = {
c_host = "\0\0\0\0\0", s_host = {0, 0, 0}}, x_port = 21252}
#5 0xc04ff08d in sosend (so=0xc1f755a0, addr=0xc21240a0, uio=0xce651c4c,
top=0xc16ef000, control=0x0, flags=4, td=0xc1d5d3c0)
at ../../../kern/uipc_socket.c:715
mp = (struct mbuf **) 0xc16ef000
m = (struct mbuf *) 0xc200ba00
space = 0
len = -1049694208
resid = 0
clen = -1040139776
error = 0
dontroute = 1
mlen = 208
atomic = 1
cow_send = 0
#6 0xc05038cc in kern_sendit (td=0xc1d5d3c0, s=4, mp=0xce651cc4,
flags=-1049751040, control=0xc16e1200) at ../../../kern/uipc_syscalls.c:723
auio = {uio_iov = 0xce651cbc, uio_iovcnt = 1, uio_offset = 34,
uio_resid = 0, uio_segflg = UIO_USERSPACE, uio_rw = UIO_WRITE,
uio_td = 0xc1d5d3c0}
iov = (struct iovec *) 0xc1d5d3c0
so = (struct socket *) 0xc1f755a0
i = -1042951232
len = 34
error = 22
ktriov = (struct iovec *) 0x0
ktruio = {uio_iov = 0x0, uio_iovcnt = -832234408,
uio_offset = -4582091130731257156, uio_resid = 0, uio_segflg = 3227917479,
uio_rw = 265, uio_td = 0xc21240a0}
#7 0xc050371e in sendit (td=0xc16e1200, s=-1049751040, mp=0xce651cc4,
flags=-1049751040) at ../../../kern/uipc_syscalls.c:663
control = (struct mbuf *) 0x0
to = (struct sockaddr *) 0xc21240a0
error = 0
#8 0xc0503a5b in sendto (td=0xc16e1200, uap=0xc1d5d3c0)
at ../../../kern/uipc_syscalls.c:784
msg = {msg_name = 0xc21240a0, msg_namelen = 16, msg_iov = 0xce651cbc,
msg_iovlen = 1, msg_control = 0x0, msg_controllen = 3254741312,
msg_flags = 0}
aiov = {iov_base = 0x804f8e0, iov_len = 0}
error = -1049751040
#9 0xc060e2a0 in syscall (frame=
{tf_fs = 47, tf_es = 47, tf_ds = 47, tf_edi = 34, tf_esi = 34, tf_ebp = -1077940968, tf_isp = -832234124, tf_ebx = -1077941008, tf_edx = 4, tf_ecx = 1, tf_eax = 133, tf_trapno = 12, tf_err = 2, tf_eip = 671938895, tf_cs = 31, tf_eflags = 518, tf_esp = -1077941044, tf_ss = 47}) at ../../../i386/i386/trap.c:1010
params = 0xbfbfecd0 "\004"
callp = (struct sysent *) 0xc068a868
td = (struct thread *) 0xc1d5d3c0
p = (struct proc *) 0xce651cc4
orig_tf_eflags = 518
sticks = 0
error = 0
narg = 6
args = {4, 134543550, 34, 4, -1077941008, 16, 0, 1}
code = 133
#10 0xc05fefed in Xint0x80_syscall () at {standard input}:136
No locals.
#11 0x0804a9ae in ?? ()
No symbol table info available.
---Type <return> to continue, or q <return> to quit---
#12 0x0804a60e in ?? ()
No symbol table info available.
#13 0x0804befb in ?? ()
No symbol table info available.
#14 0x0804a019 in ?? ()
No symbol table info available.
#15 0x08048d22 in ?? ()
No symbol table info available.
(kgdb) up
#1 0xc05301fe in ether_output (ifp=0x0, m=0xc16ef000, dst=0xce651b20, rt0=0x0)
at ../../../net/if_ethersubr.c:303
303 if ((error = (*ng_ether_output_p)(ifp, &m)) != 0) {
(kgdb) list
298 }
299 }
300
301 /* Handle ng_ether(4) processing, if any */
302 if (ng_ether_output_p != NULL) {
303 if ((error = (*ng_ether_output_p)(ifp, &m)) != 0) {
304 bad: if (m != NULL)
305 m_freem(m);
306 return (error);
307 }
(kgdb) p ifp
$1 = (struct ifnet *) 0x0
(kgdb) up
#2 0xc0576add in ipx_outputfl (m0=0xc16ef000, ro=0x0, flags=48)
at ../../../netipx/ipx_outputfl.c:134
134 error = (*ifp->if_output)(ifp, m0,
(kgdb) p ifp
$2 = (struct ifnet *) 0xc16e1200
(kgdb) list
129 if (htons(ipx->ipx_len) <= ifp->if_mtu) {
130 ipxstat.ipxs_localout++;
131 if (ipx_copy_output) {
132 ipx_watch_output(m0, ifp);
133 }
134 error = (*ifp->if_output)(ifp, m0,
135 (struct sockaddr *)dst, ro->ro_rt);
136 goto done;
137 } else {
138 ipxstat.ipxs_mtutoosmall++;
(kgdb) quit
this hack prevent panic
index: sys/netgraph/ng_ether.c
===================================================================
RCS file: /usr/cvs/freebsd/ncvs/src/sys/netgraph/ng_ether.c,v
retrieving revision 1.27
diff -u -r1.27 ng_ether.c
--- sys/netgraph/ng_ether.c 31 Oct 2003 18:32:11 -0000 1.27
+++ sys/netgraph/ng_ether.c 6 Jun 2004 14:00:25 -0000
@@ -269,9 +269,36 @@
static int
ng_ether_output(struct ifnet *ifp, struct mbuf **mp)
{
- const node_p node = IFP2NG(ifp);
- const priv_p priv = NG_NODE_PRIVATE(node);
+ const node_p node;
+ const priv_p priv;
int error = 0;
+
+ if (!ifp) {
+ printf("%s(): ifp = 0\n", __func__);
+ return (EINVAL);
+ }
+ if (!(node = IFP2NG(ifp))) {
+ printf( "%s(): IFP2NG(ifp:%p) = 0 \\\n"
+ "\t{ if_xname = \"%s\", if_dname = \"%s\", "
+ "if_index = %d }\n",
+ __func__,
+ ifp,
+ ifp->if_xname,
+ ifp->if_dname,
+ ifp->if_index);
+ return (EINVAL);
+ }
+ if (!(priv = NG_NODE_PRIVATE(node))) {
+ printf( "%s(): NG_NODE_PRIVATE(IFP2NG(ifp:%p):%p) = 0 \\\n"
+ "\t{ if_xname = \"%s\", if_dname = \"%s\", "
+ "if_index = %d }\n",
+ __func__,
+ ifp, node,
+ ifp->if_xname,
+ ifp->if_dname,
+ ifp->if_index);
+ return (EINVAL);
+ }
/* If "upper" hook not connected, let packet continue */
if (priv->upper == NULL)
messages on console...
ng_ether_output(): IFP2NG(ifp:0xc16e1200) = 0 \
{ if_xname = "fxp0f3", if_dname = "ef", if_index = 5 }
ng_ether_output(): IFP2NG(ifp:0xc16e1400) = 0 \
{ if_xname = "fxp0f2", if_dname = "ef", if_index = 4 }
ng_ether_output(): IFP2NG(ifp:0xc16e1600) = 0 \
{ if_xname = "fxp0f1", if_dname = "ef", if_index = 3 }
ng_ether_output(): IFP2NG(ifp:0xc16e1800) = 0 \
{ if_xname = "fxp0f0", if_dname = "ef", if_index = 2 }
dmesg & netgraph start script here...
http://bspu.secna.ru/~swp/freebsd/panic/panic.1
/swp
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