[Kamailio-Devel] OpenSer 1.3.0 crash

[Daniel-Constantin Mierla]

Hello,

On 09/15/08 14:17, Henning Westerholt wrote:
> On Monday 15 September 2008, Robin Vleij wrote:
>   
>> Posted this to the user list, but I'm not sure if that's the right
>> forum. Hoped to get some feedback on a crash I had a week ago, now
>> I'm trying it here.
>>
>> We've been running OpenSER (1.3.0 ntls, compiled for x66_64) for quite a
>> while now and only had a crash once. We suspected then that this was
>> caused by hitting the max_while_loops for a while (never happened again
>> after fixing the max-while-loops). Now I had a crash and the backtrace
>> looks like the following. Do you guys have any pointers on what is
>> causing this? We got another crash, on the same server last Saturday.
>> I'll attach the backtrace for that one at the bottom.
>>     
>
> Hi Robin,
>
> thanks for the report. I remember some bug (#1908805) talks also about 
> possible problems with running into the max_while_loop, perhaps this is worth 
> investigating. Can you provide a little bit more details about the while loop 
> problem? 
>
>   
>> First backtrace:
>>
>> #0  free_hostent (dst=0x6e3fe0) at proxy.c:203
>> 203                     for (r=0; dst->h_addr_list[r];r++) {
>>     
>
> Can you inspect the value of the 'dst' parameter with gdb, to see what is 
> invalid in there? And then take a look to the previous t_relay statements, 
> where and why it was introduced?
>
>   
>> Last crash:
>> #0  free_lump_list (l=0x636d20) at data_lump.c:412
>> #1  0x000000000048ed02 in free_sip_msg (msg=0x6df7b8) at
>> parser/msg_parser.c:661
>>     
>
> And for this crash, the value of the 'l' lump list? Daniel, perhaps this is 
> related to the header cloning issues that you investigate at the moment? Just 
> an idea..
>   
could be, I backported fixes that should prevent the crash in such 
situation. Please test and report if crash still happens. I still need 
to backport other fixes to have it done completely, but not related to 
eventual crash.

Cheers,
Daniel

-- 
Daniel-Constantin Mierla
http://www.asipto.com