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Re: [SCTP-Discussion] sctp_receive produces segfaults


Chronological Thread 
  • From: Michael Tüxen <Michael.Tuexen AT micmac.franken.de>
  • To: discussion AT sctp.de
  • Subject: Re: [SCTP-Discussion] sctp_receive produces segfaults
  • Date: Wed Apr 25 16:13:01 2001
  • List-id: SCTP Discussions <discussion.sctp.de>

Dear Lode,

are you calling sctp_receive in the data_arrive primitve?

The associd handling has changed and it is OK that you get 1, 2, and so
on.

Best regards
Michael

Coene Lode wrote:
>
> Well folks,
>
> Upgrading to SCTPlib-1.0.0-Pre9, I got accross the follwing problem which
> did not occur in the pre6(the one I was previously using).
> Every time I call sctp_receive, a segfault is signalled at
> DLL_DeleteCurrentRecord line 900(module DLL_main.c) when readin
> list->current->info. it seems it is reading into the middle of nowhere(thus
> generating the segmentation fault.
> There may something wrong in my software because a older version does the
> SCTP_receive without segfault, but produces a goblygook bytestring, which
> was not the bytestring that was send(however the length is correct, so there
> must be something there) Was checked via ethereal: DATA send , SACK went
> back
> My conclusion: sctp_receive copies data from the "middle of nowhere" to me.
> Reason: I don't know.
>
> As a aside note: in the previous version pre6, the association id was always
> a big number 8596726(example) and always different from the previous one.
> Now in the pre9 version I always get 1 which is the same as the previous
> one.(Which is weird to say the least) Maybe this has something to do with my
> troubles.
>
> In order to check this out again I am going to put in pre6 and test it
> again.
>
> yours sincerly,
> Lode
>
> PS: note to myself: if it works, don't upgrade
>
> Siemens Atea ICN D CS D
> Software Development
> Atealaan 34
> B-2200 Herentals Belgium
> Tel +32-14-25-2081 / Fax +32-14-25-3212
> E-mail:
> lode.coene AT siemens.atea.be
>
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