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SubjectRe: Linux 2.6.20-rc4
From
Date
Linus Torvalds <torvalds@osdl.org> writes:

> Patrick McHardy (2):
> [NETFILTER]: New connection tracking is not EXPERIMENTAL anymore

I get kernel panics when doing large ethernet transfers. A loop doing
continuous scp transfers of some large (>100MB) files makes the kernel
crash after a few minutes. scp runs on a different machine and copies
data from the machine that crashes. (The first crash did not happen
when scp was used, but scp is an easy way to reproduce the problem.)

I've seen this crash also with 2.6.20-rc2-git-something. Previously I
ran these kernels quite a lot and used a ppp link without problems.
Today I started using eth0 and the crashes started to occur. I have
netfilter rules for ppp0, but no rules for eth0. Earlier kernels have
been working perfectly for large eth0 transfers on this machine.

Hand copied data from the console:

BUG: unable to handle kernel paging request at virtual address 9f5cea9f
printing eip:
c034c729
*pde = 00000000
Ooops: 0000 [#1]
PREEMPT
Modules linked in: ... 8139too ...
CPU: 0
EIP: 0060:[<c034c729>] Not tainted VLI
EFALLGS: 00010206 (2.6.20-rc4 #13)
EIP is at ipv4_conntrack_help+0x6b/0x83
eax: c0475e44 ebx: 9f5cea37 ecx: d1dcebb0 edx: 00000014
esi: d1dcebb0 edi: c0475e44 ebp: c0475dd8 esp: c0475dc4
ds: 007b es: 007b ss: 0068
Process swapper (pid: 0, ti=c0474000 task=c0437500 task.ti=c0474000)
Stack: 00000001 9f5cea37 c0463a6c c0475e1c c0471a48 c0475dfc c0308269 00000000
c0318767 00000001 c0475e44 00000001 c0475e44 c0471a48 c0475e2c c03083a8
df391800 00000000 c0475e1c c0318767 80000000 00000002 c0463a6c df391800
Call Trace:
show_trace_log_lvl+0x1a/0x30
show_stack_log_lvl+0xa5/0xca
show_registers+0x1e2/0x343
die+0x10b/0x228
do_page_fault+0x2b9/0x5f6
error_code+0x74/0x7c
nf_iterate+0x59/0x7d
nf_hook_slow+0x57/0xe1
ip_local_deliver+0x1a8/0x1ef
ip_rcv+0x25b/0x4eb
netif_receive_skb+0x196/0x2cc
rtl8139_poll+0x309/0x4d7
net_rx_action+0xac/0x25f
__do_softirq+0x5c/0xb7
do_softirq+0x4d/0x50
irq_exit+0x49/0x4b
do_IRQ+0x5f/0xb3
common_interrupt+0x2e/0x34
cpu_idle+0x41/0x6a
rest_init+0x37/0x3a
start_kernel+0x2ba/0x385
0x0
=================
Code: 89 45 f0 85 c0 74 2f 8b 42 20 89 c1 2b 8a 98 00 00 00 0f b6 10
80 e2 0f 0f b6 d2 8d 14 91 0f b6 c3 89 04 24 89 f1 89 f8 8b 5d f0 <ff>
53 68 83 c4 08 5b 5e 5f 5d c3 b8 01 00- 00 00 83 c4 08 5b 5e
EIP: [<c034c729>] ipv4_conntrack_help+0x6b/0x83 SS:ESP 0068:c0475dc4
<0>Kernel panic - not syncing: Fatal exception in interrupt
Network related config options (There is also some wireless stuff
compiled in, but it isn't used):

CONFIG_INET=y
CONFIG_IP_FIB_HASH=y
CONFIG_INET_DIAG=y
CONFIG_INET_TCP_DIAG=y
CONFIG_TCP_CONG_CUBIC=y
CONFIG_DEFAULT_TCP_CONG="cubic"
CONFIG_NETFILTER=y
CONFIG_NF_CONNTRACK_ENABLED=y
CONFIG_NF_CONNTRACK_SUPPORT=y
CONFIG_NF_CONNTRACK=y
CONFIG_NF_CONNTRACK_MARK=y
CONFIG_NF_CONNTRACK_FTP=y
CONFIG_NF_CONNTRACK_H323=y
CONFIG_NF_CONNTRACK_IRC=y
CONFIG_NF_CONNTRACK_NETBIOS_NS=y
CONFIG_NF_CONNTRACK_SIP=y
CONFIG_NETFILTER_XTABLES=y
CONFIG_NETFILTER_XT_TARGET_CLASSIFY=y
CONFIG_NETFILTER_XT_TARGET_CONNMARK=y
CONFIG_NETFILTER_XT_TARGET_MARK=y
CONFIG_NETFILTER_XT_TARGET_NFQUEUE=y
CONFIG_NETFILTER_XT_MATCH_COMMENT=y
CONFIG_NETFILTER_XT_MATCH_CONNMARK=y
CONFIG_NETFILTER_XT_MATCH_CONNTRACK=y
CONFIG_NETFILTER_XT_MATCH_LENGTH=y
CONFIG_NETFILTER_XT_MATCH_LIMIT=y
CONFIG_NETFILTER_XT_MATCH_MAC=y
CONFIG_NETFILTER_XT_MATCH_MARK=y
CONFIG_NETFILTER_XT_MATCH_PKTTYPE=y
CONFIG_NETFILTER_XT_MATCH_REALM=y
CONFIG_NETFILTER_XT_MATCH_STATE=y
CONFIG_NETFILTER_XT_MATCH_STATISTIC=y
CONFIG_NETFILTER_XT_MATCH_TCPMSS=y
CONFIG_NF_CONNTRACK_IPV4=y
CONFIG_NF_CONNTRACK_PROC_COMPAT=y
CONFIG_IP_NF_IPTABLES=y
CONFIG_IP_NF_MATCH_IPRANGE=y
CONFIG_IP_NF_MATCH_TOS=y
CONFIG_IP_NF_MATCH_RECENT=y
CONFIG_IP_NF_MATCH_ECN=y
CONFIG_IP_NF_MATCH_TTL=y
CONFIG_IP_NF_MATCH_OWNER=y
CONFIG_IP_NF_MATCH_ADDRTYPE=y
CONFIG_IP_NF_FILTER=y
CONFIG_IP_NF_TARGET_REJECT=y
CONFIG_IP_NF_TARGET_LOG=y
CONFIG_IP_NF_TARGET_TCPMSS=y
CONFIG_NF_NAT=y
CONFIG_NF_NAT_NEEDED=y
CONFIG_IP_NF_TARGET_MASQUERADE=y
CONFIG_NF_NAT_FTP=y
CONFIG_NF_NAT_IRC=y
CONFIG_NF_NAT_H323=y
CONFIG_NF_NAT_SIP=y
CONFIG_IP_NF_MANGLE=y
CONFIG_IP_NF_TARGET_TOS=y
CONFIG_IP_NF_TARGET_ECN=y
CONFIG_NET_CLS_ROUTE=y

--
Peter Osterlund - petero2@telia.com
http://web.telia.com/~u89404340
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