crash信息，专家分析一下啥原因？
Segmentation Fault!Crash time 2018-02-04/07:35:58
Image built at 20171222.172050, release=1, osver=9.2
curthread=flow0
_last_cmdid = 0
info.si_signo = 11
info.si_errno = 0
info.si_code= 1
info.si_addr= 0xffff
info.si_trapno= 12
info.si_pid = 0
info.si_uid = 0
gs= 0x1b
es= 0xbfbf003b
ds= 0xee1a003b
eflags = 0x13206
edi = 0x34c39a80
esi = 0x0000ffff
ebp = 0xbf6faed8
isp = 0xc5781d34
ebx = 0x2c449480
edx = 0x00082000
ecx = 0x00000000
eax = 0x34c39a80
err = 0x00000004
eip = 0x0000ffff
cs= 0x00000033
esp = 0xbf6fae9c
ss= 0x0000003b
Stack trace:
*0x0000ffff: 0x2c449480 0x5c55a448
*0x081737d9: 0x2c449480 0x2c449480
*0x0808ec7c: 0x28477508 0x00000000
*0x0808e586: 0x28477508 0x5c404c04
您是用的什么版本加对应版本的群问技术要下升级包，这个crash只有开发能看，目前这个需要升级。
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