(gdb) bt full
#0  0xfeec5ea8 in _waitid () from /lib/libc.so.1
No symbol table info available.
#1  0xfee6d188 in _waitpid () from /lib/libc.so.1
No symbol table info available.
#2  0xfeeb8c68 in waitpid () from /lib/libc.so.1
No symbol table info available.
#3  0xfeeac090 in system () from /lib/libc.so.1
No symbol table info available.
#4  0x002a0ec4 in smb_panic (why=0x655be0 "/bin/sleep 99999") at lib/util.c:1672
        cmd = 0x655be0 "/bin/sleep 99999"
        result = 6642656
        __FUNCTION__ = "smb_panic"
#5  0x0028a2ec in fault_report (sig=10) at lib/fault.c:46
        counter = 1
        __FUNCTION__ = "fault_report"
#6  0x0028a2fc in sig_fault (sig=10) at lib/fault.c:69
No locals.
#7  <signal handler called>
No symbol table info available.
#8  parse_share_modes (dbuf={dptr = 0x655a9c "", dsize = 160}, lck=0x655a00) at locking/locking.c:506
        data = (struct locking_data *) 0x655a9c
        i = 0
        __FUNCTION__ = "parse_share_modes"
#9  0x00232b08 in fill_share_mode_lock (lck=0x655a00, id={devid = 22282274, inode = 107655}, servicepath=0x0, 
    fname=0x655a00 "", share_mode_data={dptr = 0x655a9c "", dsize = 160}, old_write_time=0x0) at locking/locking.c:792
        __FUNCTION__ = "fill_share_mode_lock"
#10 0x00232dc0 in get_share_mode_lock (mem_ctx=0x655a00, id={devid = 22282274, inode = 107655}, servicepath=0x0, 
    fname=0x0, old_write_time=0x0) at locking/locking.c:822
        lck = (struct share_mode_lock *) 0x655a00
        tmp = {devid = 22282274, inode = 107655}
        key = {dptr = 0xffbfefd8 "", dsize = 16}
        __FUNCTION__ = "get_share_mode_lock"
#11 0x000d211c in close_remove_share_mode (fsp=0x64e030, close_type=SHUTDOWN_CLOSE) at smbd/close.c:249
        conn = (connection_struct *) 0x6579d8
        delete_file = false
        changed_user = false
        lck = (struct share_mode_lock *) 0x0
        sbuf = {st_dev = 24, st_pad1 = {6642528, 170, 0}, st_ino = 8589934592, st_mode = 4290769096, 
  st_nlink = 2674996, st_uid = 0, st_gid = 0, st_rdev = 825242163, st_pad2 = {0, -4198120}, st_size = 4290769720, 
  st_atim = {tv_sec = 24, tv_nsec = 48568}, st_mtim = {tv_sec = 48580, tv_nsec = 48284}, st_ctim = {tv_sec = 6493152, 
    tv_nsec = 1}, st_blksize = 6655104, st_blocks = 107369987505, st_fstype = "\000\000\000ª", '\0' <repeats 11 times>, 
  st_pad4 = {-4198088, 2775736, 5, 14, 14, 3, 6, 88}}
        status = {v = 0}
        ret = 6642176
        id = {devid = 0, inode = 4294967297}
        __FUNCTION__ = "close_remove_share_mode"
#12 0x000d2b8c in close_normal_file (fsp=0x64e030, close_type=SHUTDOWN_CLOSE) at smbd/close.c:549
        status = {v = 0}
        saved_status1 = {v = 0}
        saved_status2 = {v = 0}
        saved_status3 = {v = 0}
        saved_status4 = {v = 0}
        conn = (connection_struct *) 0x6579d8
        __FUNCTION__ = "close_normal_file"
#13 0x000d3178 in close_file (fsp=0x64e030, close_type=SHUTDOWN_CLOSE) at smbd/close.c:735
        status = {v = 0}
        base_fsp = (struct files_struct *) 0x0
        __FUNCTION__ = "close_file"
#14 0x000756a8 in file_close_conn (conn=0x6579d8) at smbd/files.c:145
        fsp = (files_struct *) 0x0
        next = (files_struct *) 0x0
#15 0x000ef028 in close_cnum (conn=0x6579d8, vuid=100) at smbd/service.c:1392
        __FUNCTION__ = "close_cnum"
#16 0x00082788 in conn_close_all () at smbd/conn.c:180
        conn = (connection_struct *) 0x6579d8
        next = (connection_struct *) 0x0
#17 0x0050daa0 in exit_server_common (how=SERVER_EXIT_NORMAL, reason=0x51b9e0 "send_file_readX sendfile failed")
    at smbd/server.c:897
        firsttime = 0
        __FUNCTION__ = "exit_server_common"
#18 0x0050dd00 in exit_server_cleanly (explanation=0x51b9e0 "send_file_readX sendfile failed") at smbd/server.c:957
No locals.
#19 0x000a3618 in send_file_readX (conn=0x6579d8, req=0x6558b0, fsp=0x64e030, startpos=0, smb_maxcnt=130048)
    at smbd/reply.c:3202
        headerbuf = "\000\001ü;ÿSMB.\000\000\000\000\210\001È", '\0' <repeats 12 times>, "\001\000\220nd\000\017\000\fÿ\000\000\000ÿÿ\000\000\000\000\000ü;\000\001\000\000\000\000\000\000\000\000\000\000ü"
        header = {data = 0xffbff540 "", length = 63, free = 0}
        sbuf = {st_dev = 22282274, st_pad1 = {0, 0, 0}, st_ino = 107655, st_mode = 33277, st_nlink = 1, st_uid = 10332, 
  st_gid = 10000, st_rdev = 0, st_pad2 = {0, 0}, st_size = 1164672, st_atim = {tv_sec = 1213598812, 
    tv_nsec = 521453000}, st_mtim = {tv_sec = 1212387507, tv_nsec = 0}, st_ctim = {tv_sec = 1212559558, 
    tv_nsec = 842069000}, st_blksize = 8192, st_blocks = 2304, st_fstype = "ufs", '\0' <repeats 12 times>, st_pad4 = {
    0, 0, 0, 0, 0, 0, 0, 0}}
        nread = -1
        __FUNCTION__ = "send_file_readX"
#20 0x000a3ca8 in reply_read_and_X (req=0x6558b0) at smbd/reply.c:3367
        conn = (connection_struct *) 0x6579d8
        fsp = (files_struct *) 0x64e030
        startpos = 0
        smb_maxcnt = 130048
        big_readX = false
#21 0x000ea2a8 in switch_message (type=46 '.', req=0x6558b0, size=59) at smbd/process.c:1462
        flags = 9
        session_tag = 100
        conn = (connection_struct *) 0x6579d8
        last_session_tag = 100
        __FUNCTION__ = "switch_message"
#22 0x000ea33c in construct_reply (inbuf=0x655840 "", size=59, unread_bytes=0, encrypted=false) at smbd/process.c:1485
        type = 46 '.'
        conn = (connection_struct *) 0x2e
        req = (struct smb_request *) 0x6558b0
#23 0x000ea660 in process_smb (inbuf=0x655840 "", nread=59, unread_bytes=0, encrypted=false) at smbd/process.c:1561
        trans_num = 14
        msg_type = 0
        __FUNCTION__ = "process_smb"
#24 0x000eb390 in smbd_process () at smbd/process.c:2045
        select_timeout = 60000
        num_echos = 0
        frame = (TALLOC_CTX *) 0x655800
        inbuf = 0x655840 ""
        inbuf_len = 59
        encrypted = false
        last_timeout_processing_time = 1215087220
        num_smbs = 14
        unread_bytes = 0
        __FUNCTION__ = "smbd_process"
#25 0x0050f020 in main (argc=-1, argv=0xffbffb4c) at smbd/server.c:1450
        is_daemon = true
        interactive = false
        Fork = true
        no_process_group = false
        log_stdout = false
        ports = 0x0
        profile_level = 0x0
        opt = -1
        pc = (poptContext) 0x640d08
        print_build_options = false
        long_options = {{longName = 0x0, shortName = 0 '\0', argInfo = 4, arg = 0xff058268, val = 0, 
    descrip = 0x601268 "Help options:", argDescrip = 0x0}, {longName = 0x601278 "daemon", shortName = 68 'D', 
    argInfo = 0, arg = 0x0, val = 1000, descrip = 0x601280 "Become a daemon (default)", argDescrip = 0x0}, {
    longName = 0x6012a0 "interactive", shortName = 105 'i', argInfo = 0, arg = 0x0, val = 1001, 
    descrip = 0x6012b0 "Run interactive (not a daemon)", argDescrip = 0x0}, {longName = 0x6012d0 "foreground", 
    shortName = 70 'F', argInfo = 0, arg = 0x0, val = 1002, 
    descrip = 0x6012e0 "Run daemon in foreground (for daemontools, etc.)", argDescrip = 0x0}, {
    longName = 0x601318 "no-process-group", shortName = 0 '\0', argInfo = 0, arg = 0x0, val = 1003, 
    descrip = 0x601330 "Don't create a new process group", argDescrip = 0x0}, {longName = 0x601358 "log-stdout", 
    shortName = 83 'S', argInfo = 0, arg = 0x0, val = 1004, descrip = 0x601368 "Log to stdout", argDescrip = 0x0}, {
    longName = 0x601378 "build-options", shortName = 98 'b', argInfo = 0, arg = 0x0, val = 98, 
    descrip = 0x601388 "Print build options", argDescrip = 0x0}, {longName = 0x6013a0 "port", shortName = 112 'p', 
    argInfo = 1, arg = 0x63df74, val = 0, descrip = 0x6013a8 "Listen on the specified ports", argDescrip = 0x0}, {
    longName = 0x6013c8 "profiling-level", shortName = 80 'P', argInfo = 1, arg = 0x63df78, val = 0, 
    descrip = 0x6013d8 "Set profiling level", argDescrip = 0x6013f0 "PROFILE_LEVEL"}, {longName = 0x0, 
    shortName = 0 '\0', argInfo = 4, arg = 0x63197c, val = 0, descrip = 0x601400 "Common samba options:", 
    argDescrip = 0x0}, {longName = 0x0, shortName = 0 '\0', argInfo = 4, arg = 0x634cf8, val = 0, 
    descrip = 0x601418 "Build-time configuration overrides:", argDescrip = 0x0}, {longName = 0x0, shortName = 0 '\0', 
    argInfo = 0, arg = 0x0, val = 0, descrip = 0x0, argDescrip = 0x0}}
        frame = (TALLOC_CTX *) 0x63e438
        __FUNCTION__ = "main"