Segentation fault on the server

[ice3]

When performing several requests, the server stop working and a segfault (I think happen).

Here is the core dump:

Exception (29):
epc1=0x4000e1b2 epc2=0x00000000 epc3=0x00000000 excvaddr=0x00000000 depc=0x00000000

ctx: sys 
sp: 3ffffc40 end: 3fffffb0 offset: 01a0

>>>stack>>>
3ffffde0:  3ffed5bc 00000020 40232ca0 401004f4  
3ffffdf0:  00000005 3fffbfa4 40232ca0 40107078  
3ffffe00:  40215933 401048ef 402087ef 40209f18  
3ffffe10:  000000b8 4020c5cf 00000018 3ffed34c  
3ffffe20:  40208842 3fffbe7c 3fff0e8c 3ffe9ed2  
3ffffe30:  3ffffe40 40210aa6 3fff0e8c 3fffbe7c  
3ffffe40:  00000000 3ffed40c 3ffed388 00000000  
3ffffe50:  40210c04 3ff20a00 3fff0e8c 3ffea516  
3ffffe60:  3ffea4f4 40210d30 3fffbe7c 3ffea4f4  
3ffffe70:  3ffea516 0000002c 00000004 401004f4  
3ffffe80:  3ffea4fe 3fff1304 4020d94f 3ff20a00  
3ffffe90:  3fff0e8c 3fff0a44 00000015 4020d821  
3ffffea0:  40205e30 00000030 00000019 ffffffff  
3ffffeb0:  40205e27 13834f4b 3ffef188 3fffd9d0  
3ffffec0:  00000000 00000000 00000000 fffffffe  
3ffffed0:  ffffffff 3fffc6fc 3ffee168 3ffef1a0  
3ffffee0:  00000000 3fffdad0 3ffef18c 00000030  
3ffffef0:  00000000 3fffdad0 3ffef18c 0000001a  
3fffff00:  3ffea50c 00000000 00000022 401004d8  
3fffff10:  40214dc9 ffffffc2 00000000 00000000  
3fffff20:  4020d0b9 3ffea4f4 3ffeca20 3fff0e8c  
3fffff30:  00000000 3ffea4fe 3ffea520 3ffe8dc4  
3fffff40:  40104fb6 00000000 3ffea4fe 00000001  
3fffff50:  00000036 3ffe8dc4 3fff1304 3ffea4e8  
3fffff60:  00000000 00000022 40208136 3ffeca20  
3fffff70:  3ffea4e8 3fffdcc0 3ffe9070 3fff1134  
3fffff80:  3ffea504 00000040 00000000 3ffef1a0  
3fffff90:  40207a83 3fffdab0 00000000 40205e3b  
3fffffa0:  3ffe9070 40000f49 3fffdab0 40000f49  
<<<stack<<<
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