Comment 2 for bug 1771283

-- Core dump with gdb --
Using host libthread_db library "/lib/aarch64-linux-gnu/libthread_db.so.1".
Core was generated by `iperf -c 192.168.120.2 -P10 -w 130k -t 3600'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0 strlen () at ../sysdeps/aarch64/strlen.S:94
94 ../sysdeps/aarch64/strlen.S: No such file or directory.
[Current thread is 1 (Thread 0xffff827fc1d0 (LWP 3788))]
(gdb) bt
#0 strlen () at ../sysdeps/aarch64/strlen.S:94
#1 0x0000ffff9b2caf18 in _IO_vfprintf_internal (s=s@entry=0xffff827fb5f8,
    format=format@entry=0xaaaae1c3b0a8 "%4.0f %s", ap=...) at vfprintf.c:1643
#2 0x0000ffff9b361a64 in ___vsnprintf_chk (
    s=0xaaaae1c4e280 <buffer> "4227448246536 ", maxlen=<optimized out>,
    flags=1, slen=<optimized out>, format=0xaaaae1c3b0a8 "%4.0f %s", args=...)
    at vsnprintf_chk.c:63
#3 0x0000ffff9b361980 in ___snprintf_chk (s=<optimized out>,
    maxlen=<optimized out>, flags=<optimized out>, slen=<optimized out>,
    format=<optimized out>) at snprintf_chk.c:34
#4 0x0000aaaae1c310d0 in ?? ()
#5 0x0000000000000001 in ?? ()
Backtrace stopped: previous frame identical to this frame (corrupt stack?)
(gdb)