[SR-Users] Bad File Descriptor

Daniel-Constantin Mierla miconda at gmail.com
Thu Feb 17 20:08:33 CET 2011


Please keep the mailing list cc-ed.

My previous email had other comments/questions inline, can you answer 
them as well? They are relevant in troubleshooting.

Thanks,
Daniel

On 2/17/11 7:57 PM, David J. wrote:
> version: kamailio 3.1.1 (x86_64/linux) 88bda8
> flags: STATS: Off, USE_IPV6, USE_TCP, USE_TLS, TLS_HOOKS, 
> USE_RAW_SOCKS, DISABLE_NAGLE, USE_MCAST, DNS_IP_HACK, SHM_MEM, 
> SHM_MMAP, PKG_MALLOC, DBG_QM_MALLOC, USE_FUTEX, 
> FAST_LOCK-ADAPTIVE_WAIT, USE_DNS_CACHE, USE_DNS_FAILOVER, USE_NAPTR, 
> USE_DST_BLACKLIST, HAVE_RESOLV_RES
> ADAPTIVE_WAIT_LOOPS=1024, MAX_RECV_BUFFER_SIZE 262144, MAX_LISTEN 16, 
> MAX_URI_SIZE 1024, BUF_SIZE 65535, PKG_SIZE 4MB
> poll method support: poll, epoll_lt, epoll_et, sigio_rt, select.
> id: 88bda8
> compiled on 04:39:27 Dec  9 2010 with gcc 4.3.2
>
>
>
> On 2/17/11 1:46 PM, Daniel-Constantin Mierla wrote:
>> Hello,
>>
>> what is the version you are using?
>>
>> On 2/17/11 7:35 PM, David J. wrote:
>>>  5(20390) ERROR: <core> [udp_server.c:586]: ERROR: udp_send: 
>>> sendto(sock,0x7f67f7f94d14,4,0,69.117.34.101:2048,16): Bad file 
>>> descriptor(9)
>>>  5(20390) ERROR: nathelper [nathelper.c:1722]: udp_send failed
>>>
>>>
>>> I see this error when I try to restart kamailio after crash;
>>
>> What is the cause for the crash? Do you have a log or core for that?
>>
>>> I see the cause of this problem is 'stale' entries in the location 
>>> table;
>>>
>>> If I delete this entries kamailio starts fine; any suggestions to 
>>> prevent this from continuously happening.
>> Is any change in the IP address of the server upon restart?
>>
>> Do the errors persist or they stop after a while? They are related to 
>> NAT keepalives sent by nathelper module, so they don't affect the sip 
>> traffic and if they are for stale contacts then they are fully 
>> harmless. The stale contacts should be automatically removed after a 
>> while by usrloc module.
>>
>> Cheers,
>> Daniel
>>
>

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




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