During the server restart, we are getting postgres crash with sigabrt. No other 
operation being performed.
Attached the backtrace.

The occurrence is occasional. The issue is seen once in 30~50 times.
Recently we had performed postgres upgrade from 9.3.9 to 9.3.11. The issue is 
not seen in 9.3.9.

Postgres server version: 9.3.11
Target architecture: mips-64

We checked the difference between 9.3.9 and 9.3.11 and nothing relevant seems 
to be causing the crash.

Please help in resolving the issue as we are not competent with the postgres 
Also if you see any difference valid be 9.3.9 and 9.3.11 which might be 
pointing to this issue, please let us know.

Thanks in advance!!!

#0  0x0000005558e909c0 in raise () from /lib64/libc.so.6
(gdb) bt
#0  0x0000005558e909c0 in raise () from /lib64/libc.so.6
#1  0x0000005558e952bc in abort () from /lib64/libc.so.6
#2  0x000000012039db88 in errfinish ()
#3  0x000000012039e868 in elog_finish ()
#4  0x000000012009ea08 in btree_redo ()
#5  0x00000001200cb178 in StartupXLOG ()
#6  0x0000000120259838 in StartupProcessMain ()
#7  0x00000001200d5b3c in AuxiliaryProcessMain ()
#8  0x0000000120253314 in ?? ()

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