.
Thread 1 (Thread 0x7fa1b91cc780 (LWP 843)):
#0  0x00007fa1b9836ffc in e2p_is_null_uuid (uu=uu@entry=0x7ffcdb8f3000) at ../../../../lib/e2p/uuid.c:32
        cp = 0x7ffcdb8f3001 <error: Cannot access memory at address 0x7ffcdb8f3001>
#1  0x00007fa1b9837109 in e2p_uuid2str (uu=uu@entry=0x7ffcdb8f3000) at ../../../../lib/e2p/uuid.c:80
        buf = "756d7065-3266-7300-0000-", '0' <repeats 12 times>, '\000' <repeats 43 times>
#2  0x00007fa1b9836802 in e2p_list_journal_super (f=0x7fa1b95de760 <_IO_2_1_stdout_>, journal_sb_buf=0x7ffcdb8f1db0 "\300;9\230", exp_block_size=4096, flags=<optimized out>) at ../../../../lib/e2p/ljs.c:105
        jsb = 0x7ffcdb8f1db0
        mask_ptr = <optimized out>
        mask = <optimized out>
        m = 0
        size = <optimized out>
        j = <optimized out>
        printed = <optimized out>
        i = 277
        nr_users = 16777216
#3  0x0000555fb0f59dca in print_inline_journal_information (fs=0x555fb1e382d0) at ../../../misc/dumpe2fs.c:395
        jsb = 0x7ffcdb8f1db0
        inode = {i_mode = 33152, i_uid = 0, i_size = 134217728, i_atime = 1537729392, i_ctime = 1537729392, i_mtime = 1537729392, i_dtime = 0, i_gid = 0, i_links_count = 1, i_blocks = 262144, i_flags = 524288, osd1 = {linux1 = {l_i_version = 0}, hurd1 = {h_i_translator = 0}}, i_block = {127754, 4, 0, 0, 32768, 3702784, 0, 0, 0, 0, 0, 0, 0, 0, 0}, i_generation = 0, i_file_acl = 0, i_size_high = 0, i_faddr = 0, osd2 = {linux2 = {l_i_blocks_hi = 0, l_i_file_acl_high = 0, l_i_uid_high = 0, l_i_gid_high = 0, l_i_checksum_lo = 0, l_i_reserved = 0}, hurd2 = {h_i_frag = 0 '\000', h_i_fsize = 0 '\000', h_i_mode_high = 0, h_i_uid_high = 0, h_i_gid_high = 0, h_i_author = 0}}}
        journal_file = 0x555fb1e48b30
        retval = 0
        ino = <optimized out>
        buf = "\300;9\230\000\000\000\004\000\000\000\000\000\000\020\000\000\000\200\000\000\000\000\001\000\000\000\226\000\000\000\001", '\000' <repeats 11 times>, "\003\000\000\000\000\346\254\022\256\377\260N\207\211\005\004\237\230\266\352\325\001", '\000' <repeats 958 times>
#4  0x0000555fb0f59a5c in main (argc=<optimized out>, argv=<optimized out>) at ../../../misc/dumpe2fs.c:733
        retval = <optimized out>
        retval_csum = 0
        error_csum = 0x0
        fs = 0x555fb1e382d0
        print_badblocks = 0
        use_superblock = <optimized out>
        use_blocksize = <optimized out>
        image_dump = <optimized out>
        mmp_check = 0
        mmp_info = 0
        force = 0
        flags = <optimized out>
        header_only = 1
        c = <optimized out>
        grp_only = 0