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SubjectRe: sctp panic


> On Thu, Mar 17, 2011 at 11:49 AM, walter schloegl <sctp@muskelshirt.de> wrote:
>> -------- Original-Nachricht --------
>>> Datum: Thu, 17 Mar 2011 08:56:47 +0100
>>> Von: richard -rw- weinberger <richard.weinberger@gmail.com>
>>> An: sctp@muskelshirt.de
>>> CC: linux-kernel@vger.kernel.org
>>> Betreff: Re: sctp panic
>>> On Thu, Mar 17, 2011 at 8:43 AM, <sctp@muskelshirt.de> wrote:
>>>> Hi
>>>>
>>>> when doing the actions below I get a panic.
>>>>
>>>> - echo 1 > /proc/sys/net/sctp/addip_enable
>>>> - In a C-Programm
>>>> - socket(AF_INET,SOCK_STREAM,IPPROTO_SCTP);
>>>> - connect(....) (with correct filled parameters)
>>>>
>>>> Its no process (waiting in accept) neccessary
>>> Can you show us the panic message and your C prorgam?
>>> This would help reproducing the panic...
>> ...snip...
>>
>> The crash says:
>>
>> crash> bt
>> PID: 14646 TASK: ffff8801f40c7560 CPU: 9 COMMAND: "x"
>> #0 [ffff8801f6f5f6f0] machine_kexec at ffffffff8103697b
>> #1 [ffff8801f6f5f750] crash_kexec at ffffffff810b9078
>> #2 [ffff8801f6f5f820] oops_end at ffffffff814cc900
>> #3 [ffff8801f6f5f850] die at ffffffff8101733b
>> #4 [ffff8801f6f5f880] do_trap at ffffffff814cc1d4
>> #5 [ffff8801f6f5f8e0] do_invalid_op at ffffffff81014ee5
>> #6 [ffff8801f6f5f980] invalid_op at ffffffff81013f5b
>> [exception RIP: skb_over_panic+93]
>> RIP: ffffffff81404bdd RSP: ffff8801f6f5fa38 RFLAGS: 00010296
>> RAX: 0000000000000083 RBX: 0000000000000040 RCX: 00000000000013f6
>> RDX: 0000000000000000 RSI: 0000000000000046 RDI: 0000000000000246
>> RBP: ffff8801f6f5fa58 R8: ffffffff818a3da0 R9: 0000000000000000
>> R10: 0000000000000001 R11: 0000000000000000 R12: ffff8801f4e11000
>> R13: 0000000000000004 R14: 000000000000003e R15: 0000000000000001
>> ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0018
>> #7 [ffff8801f6f5fa60] skb_put at ffffffff81405c1c
>> #8 [ffff8801f6f5fa80] sctp_addto_chunk at ffffffffa0503c23
>> #9 [ffff8801f6f5fad0] sctp_make_init at ffffffffa0506705
>> #10 [ffff8801f6f5fba0] sctp_sf_do_prm_asoc at ffffffffa04f81d4
>> #11 [ffff8801f6f5fbd0] sctp_do_sm at ffffffffa04fd381
>> #12 [ffff8801f6f5fd60] sctp_primitive_ASSOCIATE at ffffffffa0513daf
>> #13 [ffff8801f6f5fd80] __sctp_connect at ffffffffa0510f09
>> #14 [ffff8801f6f5fe50] sctp_connect at ffffffffa0511248
>> #15 [ffff8801f6f5fe80] inet_dgram_connect at ffffffff81471b6c
>> #16 [ffff8801f6f5feb0] sys_connect at ffffffff813ff747
>> #17 [ffff8801f6f5ff80] system_call_fastpath at ffffffff81013172
>> RIP: 0000003015ee2150 RSP: 00007fffea7bdce8 RFLAGS: 00010206
>> RAX: 000000000000002a RBX: ffffffff81013172 RCX: 0000000000000000
>> RDX: 0000000000000010 RSI: 00007fffea7bdd00 RDI: 0000000000000003
>> RBP: 00007fffea7bdd40 R8: 0000000000759020 R9: ff00000000000000
>> R10: 00007fffea7bda70 R11: 0000000000000246 R12: 0000000000000000
>> R13: 00007fffea7bde20 R14: 00000000004006e0 R15: 0000000000000000
>> ORIG_RAX: 000000000000002a CS: 0033 SS: 002b
>>
>>
>>

Are you using old kernel? If it is, the following patch may fixed this
issue.

http://git.kernel.org/?p=linux/kernel/git/vxy/lksctp-dev.git;a=commitdiff;h=a8170c35e738d62e9919ce5b109cf4ed66e95bde;hp=81419d862db743fe4450a021893f24bab4698c1d

>>>> br
>>>> walter
>>>> --
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>>>>
>>> --
>>> Thanks,
>>> //richard
>>> --
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> CC'ing netdev
>


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