"Fatal exception" and do not find the location

[marhc_seven]

hi i am using RTOS SDK for design a Http sever。

when running the code ， it turns an error like below：

Fatal exception (28):
epc1=0x4022514d
epc2=0x00000000
epc3=0x40105d08
epcvaddr=0x00000000
depc=0x00000000
rtn_add=0x4022514b
?
ets Jan 8 2013,rst cause:2, boot mode:(3,6)

load 0x40100000, len 25992, room 16
tail 8
chksum 0x8f
load 0x3ffe8000, len 924, room 0
tail 12
chksum 0xdd
ho 0 tail 12 room 4
load 0x3ffe83a0, len 5088, room 12
tail 4
chksum 0x2f
csum 0x2f

i really really do not want to post here ！ but i am truly have not way to get help ！

when using the method to trace the error by search the eagle.s ： the result is there is nothing of “4022514d”

401072f2: c05540 sub a5, a5, a4
401072f5: 0155c0 slli a5, a5, 20
401072f8: 335a add.n a3, a3, a5
401072fa: 017710 slli a7, a7, 31
401072fd: 203370 or a3, a3, a7
40107300: f00d ret.n
40107302: 030c movi.n a3, 0
40107304: f00d ret.n

Disassembly of section .irom0.text:

40240000 <user_uart_wait_tx_fifo_empty-0x1ec>:
40240000: f6e8 l32i.n a14, a6, 60
40240002: fe613ffe88583ffe { excw; excw; srai a6, a1, 30 }
4024000a: ff .byte 0xff
4024000b: fffe41 l32r a4, 40240004 <_irom0_text_start+0x4>
4024000e: 050c movi.n a5, 0
40240010: 06b467 bgeu a4, a6, 4024001a <_irom0_text_start+0x1a>