.
Thread 3 (LWP 7743):
#0  0x00007fb807ad83cd in poll () at ../sysdeps/unix/syscall-template.S:81
No locals.
#1  0x00007fb80843d1dc in ?? ()
No symbol table info available.
#2  0x00007fb7f800f200 in ?? ()
No symbol table info available.
#3  0xffffffff7fffffff in ?? ()
No symbol table info available.
#4  0x0000000000000000 in ?? ()
No symbol table info available.
.
Thread 2 (LWP 7742):
#0  0x00007fb807ad83cd in poll () at ../sysdeps/unix/syscall-template.S:81
No locals.
#1  0x00007fb80843d1dc in ?? ()
No symbol table info available.
#2  0x00000000012764f0 in ?? ()
No symbol table info available.
#3  0xffffffff7fffffff in ?? ()
No symbol table info available.
#4  0x0000000000000000 in ?? ()
No symbol table info available.
.
Thread 1 (LWP 7740):
#0  0x00007fb808457f72 in ?? ()
No symbol table info available.
#1  0x0000000000000002 in ?? ()
No symbol table info available.
#2  0x0000000000000002 in ?? ()
No symbol table info available.
#3  0x00007fb7f000f810 in ?? ()
No symbol table info available.
#4  0x0000000000421258 in ?? ()
No symbol table info available.
#5  0x0000000000420f08 in ?? ()
No symbol table info available.
#6  0x000000000139f370 in ?? ()
No symbol table info available.
#7  0x0000000000000002 in ?? ()
No symbol table info available.
#8  0x00007fb808442de0 in ?? ()
No symbol table info available.
#9  0x000000000139f370 in ?? ()
No symbol table info available.
#10 0x0000000000421258 in ?? ()
No symbol table info available.
#11 0x0000000000420f08 in ?? ()
No symbol table info available.
#12 0x00007fb80841938e in ?? ()
No symbol table info available.
#13 0x0000000000000002 in ?? ()
No symbol table info available.
#14 0x00000000013aa850 in ?? ()
No symbol table info available.
#15 0x00007fb80848dd0d in ?? ()
No symbol table info available.
#16 0x00000000013aa850 in ?? ()
No symbol table info available.
#17 0x00007fb7f000f810 in ?? ()
No symbol table info available.
#18 0x00007fb80846d5ec in ?? ()
No symbol table info available.
#19 0x00000000013a08a0 in ?? ()
No symbol table info available.
#20 0x00000000013aa850 in ?? ()
No symbol table info available.
#21 0x00000000013a08a0 in ?? ()
No symbol table info available.
#22 0x00007fb808c27a31 in ?? ()
No symbol table info available.
#23 0x00000000013aa850 in ?? ()
No symbol table info available.
#24 0x00000000013aa850 in ?? ()
No symbol table info available.
#25 0x00000000013a08a0 in ?? ()
No symbol table info available.
#26 0x00007fb808c27b3e in ?? ()
No symbol table info available.
#27 0x0000000000000000 in ?? ()
No symbol table info available.