(gdb) bt
#0  __libc_do_syscall () at ../sysdeps/unix/sysv/linux/arm/libc-do-syscall.S:47
#1  0xf76ab4a0 in __libc_signal_restore_set (set=0xfffee6a0) at ../sysdeps/unix/sysv/linux/nptl-signals.h:79
#2  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:55
#3  0xf76ac18a in __GI_abort () at abort.c:89
#4  0xf76a666a in __assert_fail_base (fmt=0x1 <error: Cannot access memory at address 0x1>, assertion=0xaae2f034 "nr != 0", 
    assertion@entry=0x2 <error: Cannot access memory at address 0x2>, file=0xf7772088 <lock> "", file@entry=0xf77ea000 "", line=725, line@entry=4151779464, 
    function=function@entry=0xaae2fcf8 <__PRETTY_FUNCTION__.9207> "safe_recv") at assert.c:92
#5  0xf76a66fe in __GI___assert_fail (assertion=0x2 <error: Cannot access memory at address 0x2>, file=0xf77ea000 "", line=4151779464, 
    function=0xaae2fcf8 <__PRETTY_FUNCTION__.9207> "safe_recv") at assert.c:101
#6  0xaae2ad0c in safe_recv (buf=0xfffeed78, len=24) at testapp.c:725
#7  0xaae2ad78 in safe_recv_packet (buf=0xfffeed78, size=1024) at testapp.c:736
#8  0xaae2c348 in test_binary_get_impl (key=0xaae2f520 "test_binary_get", cmd=0 '\000') at testapp.c:1314
#9  0xaae2c3a8 in test_binary_get () at testapp.c:1323
#10 0xaae2dbec in main (argc=1, argv=0xfffef714) at testapp.c:2012