.
Thread 10 (Thread 0x7f6830ffd700 (LWP 4691)):
#0  0x00007f68b4acd47d in ftw_startup (dir=0x7f68b5644260 <g_poll> "\211\366\351\351.\374\377f\017\037\204", dir@entry=<error reading variable: Cannot access memory at address 0xb>, is_nftw=402657504, is_nftw@entry=<error reading variable: Cannot access memory at address 0xb>, func=0xffffffff, func@entry=<error reading variable: Cannot access memory at address 0xb>, descriptors=<error reading variable: Cannot access memory at address 0xb>, flags=63395456, flags@entry=<error reading variable: Cannot access memory at address 0xb>) at ../sysdeps/wordsize-64/../../io/ftw.c:699
        data = <error reading variable data (Cannot access memory at address 0xfffffffffffffee3)>
        st = <error reading variable st (Cannot access memory at address 0xffffffffffffff43)>
        result = 0
        save_err = <optimized out>
        cwdfd = -1
        cwd = 0x0
        cp = <optimized out>
Cannot access memory at address 0xb