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Hi Julian,
Am 08.12.2014 21:40, schrieb Julian Anastasov:
>
> Hello,
>
> On Mon, 8 Dec 2014, Smart Weblications GmbH - Florian Wiessner wrote:
>
>> Am 07.12.2014 19:27, schrieb Julian Anastasov:>
>>>
>>> I'm attaching a patch that avoids rerouting in
>>> IPVS for LOCAL_IN. Please test it in your setup. My tests
>>> were with NAT on today's net tree. I checked that it
>>> compiles for 3.12.33. You can use the default snat_reroute=1.
>>>
>>
>> I'm sorry to tell you that your patch does not fix the problem. The BUG
>> happens
>> as soon as the client sends PASV, the ftp server does not return "Entering
>> Passive Mode":
>
> Patch is to avoid the xfrm_selector_match crash,
> may be caused when using local client (mail?).
> For nf_ct_seqadj_set you have to use commit b25adce16064
> ("ipvs: correct usage/allocation of seqadj ext in ipvs").
> I'll send it to you privately...
>
I rebuild everything with the two provided patches and still get:
[ 512.475449] BUG: unable to handle kernel NULL pointer dereference at
0000000000000014
[ 512.481277] IP: [<ffffffffa013d470>] nf_ct_seqadj_set+0x60/0x90
[nf_conntrack]
[ 512.481442] PGD 0
[ 512.481572] Oops: 0000 [#1] SMP
[ 512.481750] Modules linked in: ip_vs_rr netconsole xt_nat xt_multiport veth
iptable_mangle xt_mark nf_conntrack_netlink nfnetlink ipt_MASQUERADE iptable_nat
nf_nat_ipv4 nf_conntrack_ipv4 nf_defrag_ipv4 ipt_REJECT xt_tcpudp iptable_filter
ip_tables cpufreq_ondemand cpufreq_powersave cpufreq_conservative
cpufreq_userspace ocfs2_stack_o2cb ocfs2_dlm bridge stp llc bonding fuse
nf_conntrack_ftp 8021q openvswitch gre vxlan xt_conntrack x_tables ocfs2_dlmfs
dlm sctp ocfs2 ocfs2_nodemanager ocfs2_stackglue configfs rbd kvm_intel kvm
coretemp ip_vs_ftp ip_vs nf_nat nf_conntrack psmouse serio_raw i2c_i801 lpc_ich
mfd_core evdev btrfs lzo_decompress lzo_compress
[ 512.485323] CPU: 4 PID: 28142 Comm: vsftpd Not tainted 3.12.33 #5
[ 512.485405] Hardware name: Supermicro X9SCI/X9SCA/X9SCI/X9SCA, BIOS 1.1a
09/28/2011
[ 512.485497] task: ffff880703f1c500 ti: ffff8805cab2e000 task.ti:
ffff8805cab2e000
[ 512.485594] RIP: 0010:[<ffffffffa013d470>] [<ffffffffa013d470>]
nf_ct_seqadj_set+0x60/0x90 [nf_conntrack]
[ 512.485751] RSP: 0018:ffff88083fd03988 EFLAGS: 00010206
[ 512.485829] RAX: 000000000000000c RBX: ffff8805cb314b1c RCX: 0000000000000003
[ 512.485916] RDX: 0000000000000026 RSI: 0000000000000003 RDI: ffff8805cb314b1c
[ 512.486007] RBP: 00000000030a6079 R08: ffff88079d058c80 R09: ffff88083fd03998
[ 512.486084] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000003
[ 512.486162] R13: 0000000000000000 R14: 0000000000000003 R15: ffff8808170150bc
[ 512.486240] FS: 00007f0497645700(0000) GS:ffff88083fd00000(0000)
knlGS:0000000000000000
[ 512.486351] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 512.486431] CR2: 0000000000000014 CR3: 00000007457f4000 CR4: 00000000000407e0
[ 512.486512] Stack:
[ 512.486583] ffff88077b389460 0000000000000012 0000000000000014
ffff8805cb314b18
[ 512.486886] ffff880817015001 ffffffffa0152681 0000000000000000
ffffffff00000045
[ 512.487195] ffff880800000048 0000001b00000003 ffff88083fd03a60
ffff88077b389460
[ 512.487501] Call Trace:
[ 512.487574] <IRQ>
[ 512.487634] [<ffffffffa0152681>] ? __nf_nat_mangle_tcp_packet+0x109/0x120
[nf_nat]
[ 512.487859] [<ffffffffa017a49e>] ? ip_vs_ftp_out.part.8+0x2b2/0x338
[ip_vs_ftp]
[ 512.487957] [<ffffffffa0162884>] ? ip_vs_app_pkt_out+0x105/0x18b [ip_vs]
[ 512.488038] [<ffffffffa0166028>] ? tcp_snat_handler+0x6b/0x320 [ip_vs]
[ 512.488123] [<ffffffffa0158d3d>] ? ip_vs_conn_out_get_proto+0x1c/0x25
[ip_vs]
[ 512.488222] [<ffffffffa015b93c>] ? ip_vs_out+0x2a5/0x5f6 [ip_vs]
[ 512.488325] [<ffffffff8150f544>] ? ip_frag_mem+0x2a/0x2a
[ 512.488405] [<ffffffff81508e1f>] ? nf_iterate+0x42/0x80
[ 512.488486] [<ffffffff81508ec6>] ? nf_hook_slow+0x69/0xff
[ 512.488565] [<ffffffff8150f544>] ? ip_frag_mem+0x2a/0x2a
[ 512.488645] [<ffffffff8150f8ae>] ? ip_forward+0x22d/0x2cf
[ 512.488729] [<ffffffff814e57ce>] ? __netif_receive_skb_core+0x5f0/0x66c
[ 512.488810] [<ffffffff814e59df>] ? process_backlog+0x13e/0x13e
[ 512.488893] [<ffffffffa0458e09>] ? br_handle_frame_finish+0x382/0x382
[bridge]
[ 512.488987] [<ffffffff814e5a2b>] ? netif_receive_skb+0x4c/0x7d
[ 512.489068] [<ffffffffa0458d95>] ? br_handle_frame_finish+0x30e/0x382
[bridge]
[ 512.489166] [<ffffffffa0458fda>] ? br_handle_frame+0x1d1/0x217 [bridge]
[ 512.489247] [<ffffffff814e567d>] ? __netif_receive_skb_core+0x49f/0x66c
[ 512.489338] [<ffffffff814e592b>] ? process_backlog+0x8a/0x13e
[ 512.489415] [<ffffffff814e5c31>] ? net_rx_action+0xa2/0x1c0
[ 512.489493] [<ffffffff81047e2e>] ? __do_softirq+0xf6/0x24f
[ 512.489578] [<ffffffff815ad7dc>] ? call_softirq+0x1c/0x30
[ 512.489655] <EOI>
[ 512.489721] [<ffffffff8100464d>] ? do_softirq+0x2c/0x5f
[ 512.489920] [<ffffffff81047ca1>] ? local_bh_enable+0x67/0x85
[ 512.489996] [<ffffffff81511689>] ? ip_finish_output+0x2c9/0x322
[ 512.490076] [<ffffffff8151240a>] ? ip_queue_xmit+0x2b7/0x2f0
[ 512.490156] [<ffffffff81524772>] ? tcp_transmit_skb+0x6ef/0x755
[ 512.490235] [<ffffffff815250e8>] ? tcp_write_xmit+0x886/0x9cb
[ 512.490311] [<ffffffff8152527a>] ? __tcp_push_pending_frames+0x24/0x7e
[ 512.490392] [<ffffffff8151a33c>] ? tcp_sendmsg+0xa4c/0xbfc
[ 512.490466] [<ffffffff814d3477>] ? sock_aio_write+0xe3/0xfd
[ 512.490545] [<ffffffff81122f4d>] ? do_sync_write+0x59/0x79
[ 512.490623] [<ffffffff811239e3>] ? vfs_write+0xc4/0x182
[ 512.490703] [<ffffffff81123daf>] ? SyS_write+0x45/0x7c
[ 512.490781] [<ffffffff815ac35b>] ? tracesys+0xdd/0xe2
[ 512.490859] Code: 68 14 4d 01 c5 45 85 e4 74 46 f0 80 4f 78 40 48 8d 5f 04 48
89 df e8 00 e2 46 e1 31 c0 41 83 fe 02 0f 97 c0 48 6b c0 0c 4c 01 e8 <8b> 70 08
39 70 04 74 08 89 ea 0f ca 39 10 79 0d 89 70 04 44 01
[ 512.494558] RIP [<ffffffffa013d470>] nf_ct_seqadj_set+0x60/0x90
[nf_conntrack]
[ 512.494714] RSP <ffff88083fd03988>
[ 512.494785] CR2: 0000000000000014
[ 512.494871] ---[ end trace 8a6e753cba1ccec2 ]---
--
Mit freundlichen Grüßen,
Florian Wiessner
Smart Weblications GmbH
Martinsberger Str. 1
D-95119 Naila
fon.: +49 9282 9638 200
fax.: +49 9282 9638 205
24/7: +49 900 144 000 00 - 0,99 EUR/Min*
http://www.smart-weblications.de
--
Sitz der Gesellschaft: Naila
Geschäftsführer: Florian Wiessner
HRB-Nr.: HRB 3840 Amtsgericht Hof
*aus dem dt. Festnetz, ggf. abweichende Preise aus dem Mobilfunknetz
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