Hi Vlad!
I have recompiled the 2.6.33 kernel with your debug patch. I have also
enabled SCTP debugging with with CONFIG_SCTP_DBG_MSG=y.
You can find the log messages in the attached file. Hope it helps!
Best regards
George
On 03/26/2010 03:36 PM, Vlad Yasevich wrote:
Hi George
George Cheimonidis wrote:
Hi Vlad!
I am sending this email, after the discussion that we had in the forum
thread
https://sourceforge.net/projects/lksctp/forums/forum/83479/topic/3615562.
This was related to the problem that I faced when using connect() after
binding to three IP addresses (two IPv4 and one IPv6). The problem seemed
to occur when auth_enable is set.
I am willing to rebuild the SCTP module with the patches that you mentioned.
Please provide me with some instructions on how to apply these patches, if
possible.
Best regards,
George
Here is a debug patch that should apply against either 2.6.31 or 2.6.33.
To apply it, you'll need the Ubuntu sources or sources from kernel.org
To apply them, just use
$ patch -p1< patchfile
Then rebuild the kernel or just the sctp module if you don't want to wait too
long. To build the module you do
$ make net/sctp/sctp.ko
Thanks for doing this.
-vlad
Mar 27 13:43:46 george-netbook kernel: [ 3063.211917] sctp_init_sock(sk: e74103c0)
Mar 27 13:43:51 george-netbook kernel: [ 3068.471625] sctp_setsockopt(sk: e74103c0... optname: 100)
Mar 27 13:43:51 george-netbook kernel: [ 3068.471641] sctp_setsocktopt_bindx: sk e74103c0 addrs 085de240 addrs_size 32 opt 1
Mar 27 13:43:51 george-netbook kernel: [ 3068.471655] sctp_bindx_add (sk: e74103c0, addrs: ef788e60, addrcnt: 2)
Mar 27 13:43:51 george-netbook kernel: [ 3068.471668] sctp_do_bind(sk: e74103c0, new addr: 213.xxx.xxx.xxx, port: 0, new port: 0, len: 16)
Mar 27 13:43:51 george-netbook kernel: [ 3068.471682] sctp_get_port() begins, snum=0
Mar 27 13:43:51 george-netbook kernel: [ 3068.471696] sctp_do_bind(sk: e74103c0, new addr: 192.xxx.xxx.xxx, port: 38443, new port: 0, len: 16)
Mar 27 13:43:51 george-netbook kernel: [ 3068.471706] sctp_get_port() begins, snum=38443
Mar 27 13:43:51 george-netbook kernel: [ 3068.471712] sctp_get_port() found a possible match
Mar 27 13:43:51 george-netbook kernel: [ 3068.471722] sctp_send_asconf_add_ip: (sk: e74103c0, addrs: ef788e60, addrcnt: 2)
Mar 27 13:43:55 george-netbook kernel: [ 3072.472377] sctp_setsockopt(sk: e74103c0... optname: 100)
Mar 27 13:43:55 george-netbook kernel: [ 3072.472399] sctp_setsocktopt_bindx: sk e74103c0 addrs 085de240 addrs_size 28 opt 1
Mar 27 13:43:55 george-netbook kernel: [ 3072.472417] sctp_bindx_add (sk: e74103c0, addrs: ef7887e0, addrcnt: 1)
Mar 27 13:43:55 george-netbook kernel: [ 3072.472435] sctp_do_bind(sk: e74103c0, new addr: 2001:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx, port: 38443, new port: 0, len: 28)
Mar 27 13:43:55 george-netbook kernel: [ 3072.472456] sctp_get_port() begins, snum=38443
Mar 27 13:43:55 george-netbook kernel: [ 3072.472465] sctp_get_port() found a possible match
Mar 27 13:43:55 george-netbook kernel: [ 3072.472490] sctp_send_asconf_add_ip: (sk: e74103c0, addrs: ef7887e0, addrcnt: 1)
Mar 27 13:43:57 george-netbook kernel: [ 3074.472609] sctp_setsockopt(sk: e74103c0... optname: 11)
Mar 27 13:43:57 george-netbook kernel: [ 3074.472814] sctp_connect - sk: e74103c0, sockaddr: ef745ed8, addr_len: 28
Mar 27 13:43:57 george-netbook kernel: [ 3074.472977] Created asoc ef472000
Mar 27 13:43:57 george-netbook kernel: [ 3074.472989] sctp_assoc_add_peer:association ef472000 addr: 2001:yyyy:yyyy:yyyy:yyyy:yyyy:yyyy:yyyy port: 9877 state:65535
Mar 27 13:43:57 george-netbook kernel: [ 3074.473043] sctp_v6_get_dst: DST=2001:yyyy:yyyy:yyyy:yyyy:yyyy:yyyy:yyyy
Mar 27 13:43:57 george-netbook kernel: [ 3074.473067] rt6_dst:2001:yyyy:yyyy:yyyy:yyyy:yyyy:yyyy:yyyy rt6_src:0000:0000:0000:0000:0000:0000:0000:0000
Mar 27 13:43:57 george-netbook kernel: [ 3074.473081] sctp_v6_get_saddr: asoc:ef472000 dst:f463ce00 daddr:2001:yyyy:yyyy:yyyy:yyyy:yyyy:yyyy:yyyy
Mar 27 13:43:57 george-netbook kernel: [ 3074.473093] saddr: 2001:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx
Mar 27 13:43:57 george-netbook kernel: [ 3074.473103] sctp_assoc_add_peer:association ef472000 PMTU set to 1500
Mar 27 13:43:57 george-netbook kernel: [ 3074.473113] sctp_packet_init: packet:e76a2914 transport:e76a2800
Mar 27 13:43:57 george-netbook kernel: [ 3074.473128] sctp_do_sm prefn: ep eec56700, EVENT_T_PRIMITIVE, PRIMITIVE_ASSOCIATE, asoc ef472000[STATE_CLOSED], sctp_sf_do_prm_asoc
Mar 27 13:43:57 george-netbook kernel: [ 3074.473143] DEBUG: INIT size prior to Auth 68
Mar 27 13:43:57 george-netbook kernel: [ 3074.473151] DEBUG: INIT size after AUTH and extensions(3) 123
Mar 27 13:43:57 george-netbook kernel: [ 3074.473172] skb_over_panic: text:f85d9265 len:130 put:6 head:e76a3800 data:e76a3800 tail:0xe76a3882 end:0xe76a3880 dev:<NULL>
Mar 27 13:43:57 george-netbook kernel: [ 3074.473223] ------------[ cut here ]------------
Mar 27 13:43:57 george-netbook kernel: [ 3074.473233] kernel BUG at net/core/skbuff.c:127!
Mar 27 13:43:57 george-netbook kernel: [ 3074.473242] invalid opcode: 0000 [#2] SMP
Mar 27 13:43:57 george-netbook kernel: [ 3074.473253] last sysfs file: /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq
Mar 27 13:43:57 george-netbook kernel: [ 3074.473264] Modules linked in: sha256_generic sha1_generic sctp crc32c libcrc32c snd_hda_codec_realtek snd_hda_intel binfmt_misc snd_hda_codec snd_hwdep snd_pcm_oss snd_mixer_oss bridge stp snd_pcm ppdev snd_seq_dummy bnep snd_seq_oss snd_seq_midi arc4 snd_rawmidi snd_seq_midi_event snd_seq ath5k snd_timer snd_seq_device iptable_filter snd mac80211 ath ip_tables uvcvideo videodev cfg80211 x_tables soundcore psmouse lp v4l1_compat snd_page_alloc serio_raw led_class btusb joydev parport fbcon tileblit font bitblit softcursor usbhid i915 drm_kms_helper intel_agp drm sky2 i2c_algo_bit agpgart video output
Mar 27 13:43:57 george-netbook kernel: [ 3074.473429]
Mar 27 13:43:57 george-netbook kernel: [ 3074.473443] Pid: 3048, comm: sctpapp Tainted: G D 2.6.33-geo #1 NC10 /NC10
Mar 27 13:43:57 george-netbook kernel: [ 3074.473457] EIP: 0060:[<c04a4227>] EFLAGS: 00210282 CPU: 0
Mar 27 13:43:57 george-netbook kernel: [ 3074.473473] EIP is at skb_over_panic+0x57/0x70
Mar 27 13:43:57 george-netbook kernel: [ 3074.473483] EAX: 00000087 EBX: f85d9265 ECX: c0774554 EDX: 00000000
Mar 27 13:43:57 george-netbook kernel: [ 3074.473494] ESI: 00000002 EDI: 0000007a EBP: ef745c80 ESP: ef745c58
Mar 27 13:43:57 george-netbook kernel: [ 3074.473504] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
Mar 27 13:43:57 george-netbook kernel: [ 3074.473516] Process sctpapp (pid: 3048, ti=ef744000 task=ec650cb0 task.ti=ef744000)
Mar 27 13:43:57 george-netbook kernel: [ 3074.473524] Stack:
Mar 27 13:43:57 george-netbook kernel: [ 3074.473530] c072f8e4 f85d9265 00000082 00000006 e76a3800 e76a3800 e76a3882 e76a3880
Mar 27 13:43:57 george-netbook kernel: [ 3074.473555] <0> c072d292 e76a387c ef745c8c c04a4a76 e77913c0 ef745cb0 f85d9265 ef4720ca
Mar 27 13:43:57 george-netbook kernel: [ 3074.473582] <0> e76a387a e76a3874 00000006 ef4720ca e77913c0 ef4720c4 ef745d14 f85db6ca
Mar 27 13:43:57 george-netbook kernel: [ 3074.473610] Call Trace:
Mar 27 13:43:57 george-netbook kernel: [ 3074.473644] [<f85d9265>] ? sctp_addto_chunk+0x45/0x90 [sctp]
Mar 27 13:43:57 george-netbook kernel: [ 3074.473661] [<c04a4a76>] ? skb_put+0x36/0x40
Mar 27 13:43:57 george-netbook kernel: [ 3074.473692] [<f85d9265>] ? sctp_addto_chunk+0x45/0x90 [sctp]
Mar 27 13:43:57 george-netbook kernel: [ 3074.473724] [<f85db6ca>] ? sctp_make_init+0x2ca/0x310 [sctp]
Mar 27 13:43:57 george-netbook kernel: [ 3074.473753] [<f85cdeeb>] ? sctp_sf_do_prm_asoc+0x3b/0xa0 [sctp]
Mar 27 13:43:57 george-netbook kernel: [ 3074.473782] [<f85d3a25>] ? sctp_do_sm+0x65/0x1b0 [sctp]
Mar 27 13:43:57 george-netbook kernel: [ 3074.473818] [<f85e747a>] ? sctp_primitive_ASSOCIATE+0x3a/0x40 [sctp]
Mar 27 13:43:57 george-netbook kernel: [ 3074.473850] [<f85e394e>] ? __sctp_connect+0x24e/0x4b0 [sctp]
Mar 27 13:43:57 george-netbook kernel: [ 3074.473869] [<c058a022>] ? _raw_spin_lock_bh+0x12/0x20
Mar 27 13:43:57 george-netbook kernel: [ 3074.473901] [<f85e3c17>] ? sctp_connect+0x67/0x90 [sctp]
Mar 27 13:43:57 george-netbook kernel: [ 3074.473919] [<c0501f27>] ? inet_dgram_connect+0x27/0x70
Mar 27 13:43:57 george-netbook kernel: [ 3074.473935] [<c049fc5e>] ? sys_connect+0xae/0xd0
Mar 27 13:43:57 george-netbook kernel: [ 3074.473951] [<c0399f08>] ? tty_ldisc_deref+0x8/0x10
Mar 27 13:43:57 george-netbook kernel: [ 3074.473967] [<c0392bf8>] ? tty_write+0x1b8/0x210
Mar 27 13:43:57 george-netbook kernel: [ 3074.473981] [<c03967b0>] ? n_tty_write+0x0/0x3d0
Mar 27 13:43:57 george-netbook kernel: [ 3074.473995] [<c032b898>] ? _copy_from_user+0x38/0x130
Mar 27 13:43:57 george-netbook kernel: [ 3074.474011] [<c04a0e10>] ? sys_socketcall+0x270/0x2a0
Mar 27 13:43:57 george-netbook kernel: [ 3074.474027] [<c0103063>] ? sysenter_do_call+0x12/0x28
Mar 27 13:43:57 george-netbook kernel: [ 3074.474036] Code: 00 00 89 4c 24 14 8b 88 a8 00 00 00 89 54 24 0c 89 4c 24 10 8b 40 50 89 5c 24 04 c7 04 24 e4 f8 72 c0 89 44 24 08 e8 dc 31 0e 00 <0f> 0b eb fe b9 92 d2 72 c0 eb ae 8d b4 26 00 00 00 00 8d bc 27
Mar 27 13:43:57 george-netbook kernel: [ 3074.474177] EIP: [<c04a4227>] skb_over_panic+0x57/0x70 SS:ESP 0068:ef745c58
Mar 27 13:43:57 george-netbook kernel: [ 3074.474199] ---[ end trace b9ff72b81305a989 ]---
Mar 27 13:43:57 george-netbook kernel: [ 3074.474385] sctp_close(sk: 0xe74103c0, timeout:0)
