#0  0x00000000004afc49 in ngx_http_v2_state_read_data (h2c=0x26ce6c0, pos=0x26d3d7e "xxxxxx=xxxxxxxxxxxxx", end=0x26d3d92 "") at src/http/v2/ngx_http_v2.c:979
        size = 20
        n = 0
        buf = 0x0
        rc = 40713577
        tf = 0x0
        r = 0x26cf8c0
        stream = 0x26d04d8
        rb = 0x26d1320
        clcf = 0x2533668
#1  0x00000000004af8e3 in ngx_http_v2_state_data (h2c=0x26ce6c0, pos=0x26d3d7e "xxxxxx=xxxxxxxxxxxxx", end=0x26d3d92 "") at src/http/v2/ngx_http_v2.c:877
        node = 0x26cd860
        stream = 0x26d04d8
#2  0x00000000004af367 in ngx_http_v2_state_head (h2c=0x26ce6c0, pos=0x26d3d7e "xxxxxx=xxxxxxxxxxxxx", end=0x26d3d92 "") at src/http/v2/ngx_http_v2.c:745
        head = 5120
        type = 0
#3  0x00000000004ae4d3 in ngx_http_v2_read_handler (rev=0x7ff0722aa910) at src/http/v2/ngx_http_v2.c:357
        p = 0x26d3d75 ""
        end = 0x26d3d92 ""
        available = 262112
        n = 610
        c = 0x7ff07239c510
        h2mcf = 0x24d6998
        h2c = 0x26ce6c0
#4  0x00000000004b61c4 in ngx_http_v2_idle_handler (rev=0x7ff0722aa910) at src/http/v2/ngx_http_v2.c:3791
        c = 0x7ff07239c510
        h2scf = 0x2531c30
        h2c = 0x26ce6c0
#5  0x000000000043aef6 in ngx_event_process_posted (cycle=0x24d4350, posted=0x163bb40 <ngx_posted_events>) at src/event/ngx_event_posted.c:33
        q = 0x7ff0722aa960
        ev = 0x7ff0722aa910
#6  0x000000000043878c in ngx_process_events_and_timers (cycle=0x24d4350) at src/event/ngx_event.c:259
        flags = 3
        timer = 59984
        delta = 1
#7  0x0000000000445fdd in ngx_worker_process_cycle (cycle=0x24d4350, data=0x2) at src/os/unix/ngx_process_cycle.c:753
        worker = 2
#8  0x0000000000442860 in ngx_spawn_process (cycle=0x24d4350, proc=0x445ee8 <ngx_worker_process_cycle>, data=0x2, name=0xe6d393 "worker process", respawn=2) at src/os/unix/ngx_process.c:198
        on = 1
        pid = 0
        s = 2
#9  0x0000000000445ab0 in ngx_reap_children (cycle=0x24d4350) at src/os/unix/ngx_process_cycle.c:621
        i = 2
        n = 4
        live = 1
        ch = {command = 2, pid = 2061, slot = 2, fd = -1}
        ccf = 0xa0000000a
#10 0x00000000004446d3 in ngx_master_process_cycle (cycle=0x24d4350) at src/os/unix/ngx_process_cycle.c:174
        title = 0x2607e8c "master process nginx.debug -c /etc/nginx/nginx.conf"
        p = 0x2607ebf ""
        size = 52
        i = 3
        n = 0
        sigio = 0
        set = {__val = {0 <repeats 16 times>}}
        itv = {it_interval = {tv_sec = 0, tv_usec = 0}, it_value = {tv_sec = 0, tv_usec = 0}}
        live = 1
        delay = 0
        ls = 0x0
        ccf = 0x24d54b8
#11 0x000000000040c70b in main (argc=3, argv=0x7ffc941ceaf8) at src/core/nginx.c:359
        b = 0x7ffc941ce810
        log = 0x161d700 <ngx_log>
        i = 59
        cycle = 0x24d4350
        init_cycle = {conf_ctx = 0x0, pool = 0x24d3730, log = 0x161d700 <ngx_log>, new_log = {log_level = 0, file = 0x0, connection = 0, disk_full_time = 0, handler = 0x0, data = 0x0, writer = 0x0, wdata = 0x0,
            action = 0x0, next = 0x0}, log_use_stderr = 0, files = 0x0, free_connections = 0x0, free_connection_n = 0, reusable_connections_queue = {prev = 0x0, next = 0x0}, listening = {elts = 0x0, nelts = 0, size = 0,
            nalloc = 0, pool = 0x0}, paths = {elts = 0x0, nelts = 0, size = 0, nalloc = 0, pool = 0x0}, config_dump = {elts = 0x0, nelts = 0, size = 0, nalloc = 0, pool = 0x0}, open_files = {last = 0x0, part = {
              elts = 0x0, nelts = 0, next = 0x0}, size = 0, nalloc = 0, pool = 0x0}, shared_memory = {last = 0x0, part = {elts = 0x0, nelts = 0, next = 0x0}, size = 0, nalloc = 0, pool = 0x0}, connection_n = 0,
          files_n = 0, connections = 0x0, read_events = 0x0, write_events = 0x0, old_cycle = 0x0, conf_file = {len = 21, data = 0x7ffc941cf939 "rocess"}, conf_param = {len = 0, data = 0x0}, conf_prefix = {len = 11,
            data = 0x7ffc941cf939 "rocess"}, prefix = {len = 11, data = 0xe68e80 "/etc/nginx/"}, lock_file = {len = 0, data = 0x0}, hostname = {len = 0, data = 0x0}}
        cd = 0x7ecd99
     <std::map<const void*,google::<unnamed>::CommandLineFlag*,std::less<const void*>,std::allocator<std::pair<const void* const, google::<unnamed>::CommandLineFlag*> > >::insert(std::_Rb_tree_iterator<std::pair<const void* const, google::<unnamed>::CommandLineFlag*> >, const std::pair<const void* const,google::<unnamed>::CommandLineFlag*> &)+37>
        ccf = 0x24d54b8