Hi, This is the stituations what i'm having right now. you can try that
way, it is dying all the time.
Kernel : 2.4.30
Patchs :
ip_conntrack_pptp. v1.9
ip_conntrack_proto_gre.c v1.2
ip_nat_pptp.c v1.5
ip_nat_proto_gre.c v1.2
A(CLIENT). 5 more pptp connections to 'B' with same address binding
Yes, This is wrong way.
B(SERVER). Panic
Suspicion :
/* destroy the keymap entries associated with specified expect */
void ip_ct_gre_keymap_destroy(struct ip_conntrack_expect *exp)
{
DEBUGP("entering for exp %p\n", exp);
WRITE_LOCK(&ip_ct_gre_lock);
if (exp->proto.gre.keymap_orig) {
DEBUGP("removing %p from list\n",
exp->proto.gre.keymap_orig);
list_del(&exp->proto.gre.keymap_orig->list);
<============ HERE IS THE POINT ALWAYS Oops
kfree(exp->proto.gre.keymap_orig);
exp->proto.gre.keymap_orig = NULL;
}
if (exp->proto.gre.keymap_reply) {
DEBUGP("removing %p from list\n",
exp->proto.gre.keymap_reply);
list_del(&exp->proto.gre.keymap_reply->list);
kfree(exp->proto.gre.keymap_reply);
exp->proto.gre.keymap_reply = NULL;
}
WRITE_UNLOCK(&ip_ct_gre_lock);
}
Messages :
Unable to handle kernel NULL pointer dereference at virtual address 000000cd
printing eip:
c02c530c
*pde = 00000000
Oops: 0002
CPU: 1
EIP: 0010:[<c02c530c>] Not tainted
EFLAGS: 00010286
eax: f46d79c0 ebx: f4627880 ecx: 00000000 edx: 000000c9
esi: f43a6980 edi: 00000000 ebp: 00000000 esp: f7755cac
ds: 0018 es: 0018 ss: 0018
Process swapper (pid: 0, stackpage=f7755000)
Stack: c0358a91 f46d79c0 f46d79c0 f46d79c4 f46d79c0 f7c6f780 c02c18b6
f4627880
00000004 f7c6f780 00000004 c19ef000 c0250658 f43a6980 00000004
f7755d48
c19ef000 c025f3ef f7c6f780 f7755d48 00000004 00000000 c19ef000
f7755d14
Call Trace: [<c02c18b6>] [<c0250658>] [<c025f3ef>] [<c0287d00>]
[<c0284a50>]
[<c02860bc>] [<c0287d00>] [<c0284a50>] [<c0284a9f>] [<c021796a>]
[<c0260f13>]
[<c0217a16>] [<c025efd6>] [<c0284a50>] [<c025f3c3>] [<c0284a50>]
[<c028497a>]
[<c0284a50>] [<c0282fdd>] [<c02832b0>] [<c0254f77>] [<c01c1b6f>]
[<c01c1530>]
[<c025522f>] [<c0121da6>] [<c0121dbf>] [<c010b109>] [<c0107000>]
[<c010d9a8>]
[<c0107000>] [<c0107029>] [<c01070c2>] [<c011cf75>] [<c011d1e0>]
Code: 89 4a 04 89 11 c7 40 04 00 00 00 00 c7 00 00 00 00 00 8b 83
<0>Kernel panic: Aiee, killing interrupt handler
Thanks in advance.
Cheers
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