[Bug 1577003] Re: samba crashes when streaming files to VLC, bad file descriptor

[Roger Heathcote]

Have been having same problem for several months. Had it on my old 14.4
machine, still have it on my new 16.4 machine. Tried several recent
versions of VLC, on several different Windows 7 boxes and they all show
this "bad file descriptor" behavior. Other media players e.g. Media
Player Classic do not cause any problems. File transfer via Windows
explorer works fine. File transfer via webserver works fine too. Problem
manifests over both WiFi and Ethernet. Problem is intermittent but
frequent, oftentimes if I have the "bad file descriptor" problem and I
try again it borks the entire samba session and I have to reboot the
Windows box to even see my shares again. Please contact me if you want
dumps/traces or anything else that may help.

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https://bugs.launchpad.net/bugs/1577003

Title:
  samba crashes when streaming files to VLC, bad file descriptor

Status in samba package in Ubuntu:
  Confirmed

Bug description:
  When I stream video files from Samba to Windows using VLC, samba
  streams the first few seconds of the video then crashes. VLC shows a
  "bad file descriptor" error. I've been using the same configuration
  for over a year with no problems and can't think of any recent changes
  that could cause this. Samba has no problem copying files.

  I've tried uninstalling and reinstalling samba, using the stream from
  a separate windows machine, and streaming from MPC instead of VLC.

  Ubuntu 14.04.4 LTS
  Samba version 4.3.8-Ubuntu

  The log seems to show that it repeatedly goes into panic when I start
  a stream.

  /var/log/samba/log
  [2016/04/30 11:10:48.910100,  0] ../source3/param/loadparm.c:3245(process_usershare_file)
    process_usershare_file: stat of /var/lib/samba/usershares/tv shows failed. Permission denied
  [2016/04/30 11:10:48.939500,  0] ../source3/param/loadparm.c:3245(process_usershare_file)
    process_usershare_file: stat of /var/lib/samba/usershares/tv shows failed. Permission denied
  [2016/04/30 11:10:49.333139,  0] ../source3/param/loadparm.c:3245(process_usershare_file)
    process_usershare_file: stat of /var/lib/samba/usershares/tv shows failed. Permission denied
  [2016/04/30 11:10:49.585790,  0] ../source3/param/loadparm.c:3245(process_usershare_file)
    process_usershare_file: stat of /var/lib/samba/usershares/tv shows failed. Permission denied
  [2016/04/30 11:10:49.587421,  0] ../source3/param/loadparm.c:3245(process_usershare_file)
    process_usershare_file: stat of /var/lib/samba/usershares/tv shows failed. Permission denied
  [2016/04/30 11:10:49.689048,  0] ../lib/util/fault.c:78(fault_report)
    ===============================================================
  [2016/04/30 11:10:49.689167,  0] ../lib/util/fault.c:79(fault_report)
    INTERNAL ERROR: Signal 11 in pid 2776 (4.3.8-Ubuntu)
    Please read the Trouble-Shooting section of the Samba HOWTO
  [2016/04/30 11:10:49.689226,  0] ../lib/util/fault.c:81(fault_report)
    ===============================================================
  [2016/04/30 11:10:49.689279,  0] ../source3/lib/util.c:789(smb_panic_s3)
    PANIC (pid 2776): internal error
  [2016/04/30 11:10:49.722931,  0] ../source3/lib/util.c:900(log_stack_trace)
    BACKTRACE: 29 stack frames:
     #0 /usr/lib/x86_64-linux-gnu/samba/libsmbregistry.so.0(log_stack_trace+0x1a) [0x7fd4e835616a]
     #1 /usr/lib/x86_64-linux-gnu/samba/libsmbregistry.so.0(smb_panic_s3+0x20) [0x7fd4e8356240]
     #2 /usr/lib/x86_64-linux-gnu/libsamba-util.so.0(smb_panic+0x2f) [0x7fd4e90cc8ef]
     #3 /usr/lib/x86_64-linux-gnu/libsamba-util.so.0(+0x1bb06) [0x7fd4e90ccb06]
     #4 /lib/x86_64-linux-gnu/libpthread.so.0(+0x10340) [0x7fd4e932a340]
     #5 /lib/x86_64-linux-gnu/libc.so.6(strlen+0x2a) [0x7fd4e5904aea]
     #6 /usr/lib/x86_64-linux-gnu/libsamba-util.so.0(push_ucs2_talloc+0x1e) [0x7fd4e90c657e]
     #7 /usr/lib/x86_64-linux-gnu/samba/libcliauth.so.0(E_md4hash+0x1e) [0x7fd4e7e1349e]
     #8 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(create_volume_objectid+0x3a) [0x7fd4e8c766aa]
     #9 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(+0x1d92db) [0x7fd4e8d5d2db]
     #10 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(smb_vfs_call_fsctl+0x58) [0x7fd4e8c9a9e8]
     #11 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(smb2_ioctl_filesys+0x249) [0x7fd4e8ccda29]
     #12 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(smbd_smb2_request_process_ioctl+0x7ee) [0x7fd4e8ccd3be]
     #13 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(smbd_smb2_request_dispatch+0xc7d) [0x7fd4e8cbe41d]
     #14 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(smbd_smb2_request_dispatch_immediate+0x75) [0x7fd4e8cbe915]
     #15 /usr/lib/x86_64-linux-gnu/libtevent.so.0(tevent_common_loop_immediate+0xd4) [0x7fd4e5c454e4]
     #16 /usr/lib/x86_64-linux-gnu/libsmbconf.so.0(run_events_poll+0x3c) [0x7fd4e6fee95c]
     #17 /usr/lib/x86_64-linux-gnu/libsmbconf.so.0(+0x25c44) [0x7fd4e6feec44]
     #18 /usr/lib/x86_64-linux-gnu/libtevent.so.0(_tevent_loop_once+0x8d) [0x7fd4e5c44cbd]
     #19 /usr/lib/x86_64-linux-gnu/libtevent.so.0(tevent_common_loop_wait+0x1b) [0x7fd4e5c44e5b]
     #20 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(smbd_process+0x6c9) [0x7fd4e8cad569]
     #21 smbd(+0x96b6) [0x7fd4e97666b6]
     #22 /usr/lib/x86_64-linux-gnu/libsmbconf.so.0(run_events_poll+0x16c) [0x7fd4e6feea8c]
     #23 /usr/lib/x86_64-linux-gnu/libsmbconf.so.0(+0x25ce0) [0x7fd4e6feece0]
     #24 /usr/lib/x86_64-linux-gnu/libtevent.so.0(_tevent_loop_once+0x8d) [0x7fd4e5c44cbd]
     #25 /usr/lib/x86_64-linux-gnu/libtevent.so.0(tevent_common_loop_wait+0x1b) [0x7fd4e5c44e5b]
     #26 smbd(main+0x15b4) [0x7fd4e97646c4]
     #27 /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf5) [0x7fd4e589dec5]
     #28 smbd(+0x7a96) [0x7fd4e9764a96]
  [2016/04/30 11:10:49.723523,  0] ../source3/lib/util.c:801(smb_panic_s3)
    smb_panic(): calling panic action [/usr/share/samba/panic-action 2776]
  [2016/04/30 11:10:49.754800,  0] ../source3/lib/util.c:809(smb_panic_s3)
    smb_panic(): action returned status 0
  [2016/04/30 11:10:49.755036,  0] ../source3/lib/dumpcore.c:318(dump_core)
    dumping core in /var/log/samba/cores/smbd
  [2016/04/30 11:10:50.758575,  0] ../source3/param/loadparm.c:3245(process_usershare_file)
    process_usershare_file: stat of /var/lib/samba/usershares/tv shows failed. Permission denied
  [2016/04/30 11:10:50.995766,  0] ../lib/util/fault.c:78(fault_report)
    ===============================================================
  [2016/04/30 11:10:50.995875,  0] ../lib/util/fault.c:79(fault_report)
    INTERNAL ERROR: Signal 11 in pid 2781 (4.3.8-Ubuntu)
    Please read the Trouble-Shooting section of the Samba HOWTO
  [2016/04/30 11:10:50.996396,  0] ../lib/util/fault.c:81(fault_report)
    ===============================================================
  [2016/04/30 11:10:50.996578,  0] ../source3/lib/util.c:789(smb_panic_s3)
    PANIC (pid 2781): internal error
  [2016/04/30 11:10:50.998719,  0] ../source3/lib/util.c:900(log_stack_trace)
    BACKTRACE: 29 stack frames:
     #0 /usr/lib/x86_64-linux-gnu/samba/libsmbregistry.so.0(log_stack_trace+0x1a) [0x7fd4e835616a]
     #1 /usr/lib/x86_64-linux-gnu/samba/libsmbregistry.so.0(smb_panic_s3+0x20) [0x7fd4e8356240]
     #2 /usr/lib/x86_64-linux-gnu/libsamba-util.so.0(smb_panic+0x2f) [0x7fd4e90cc8ef]
     #3 /usr/lib/x86_64-linux-gnu/libsamba-util.so.0(+0x1bb06) [0x7fd4e90ccb06]
     #4 /lib/x86_64-linux-gnu/libpthread.so.0(+0x10340) [0x7fd4e932a340]
     #5 /lib/x86_64-linux-gnu/libc.so.6(strlen+0x2a) [0x7fd4e5904aea]
     #6 /usr/lib/x86_64-linux-gnu/libsamba-util.so.0(push_ucs2_talloc+0x1e) [0x7fd4e90c657e]
     #7 /usr/lib/x86_64-linux-gnu/samba/libcliauth.so.0(E_md4hash+0x1e) [0x7fd4e7e1349e]
     #8 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(create_volume_objectid+0x3a) [0x7fd4e8c766aa]
     #9 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(+0x1d92db) [0x7fd4e8d5d2db]
     #10 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(smb_vfs_call_fsctl+0x58) [0x7fd4e8c9a9e8]
     #11 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(smb2_ioctl_filesys+0x249) [0x7fd4e8ccda29]
     #12 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(smbd_smb2_request_process_ioctl+0x7ee) [0x7fd4e8ccd3be]
     #13 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(smbd_smb2_request_dispatch+0xc7d) [0x7fd4e8cbe41d]
     #14 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(smbd_smb2_request_dispatch_immediate+0x75) [0x7fd4e8cbe915]
     #15 /usr/lib/x86_64-linux-gnu/libtevent.so.0(tevent_common_loop_immediate+0xd4) [0x7fd4e5c454e4]
     #16 /usr/lib/x86_64-linux-gnu/libsmbconf.so.0(run_events_poll+0x3c) [0x7fd4e6fee95c]
     #17 /usr/lib/x86_64-linux-gnu/libsmbconf.so.0(+0x25c44) [0x7fd4e6feec44]
     #18 /usr/lib/x86_64-linux-gnu/libtevent.so.0(_tevent_loop_once+0x8d) [0x7fd4e5c44cbd]
     #19 /usr/lib/x86_64-linux-gnu/libtevent.so.0(tevent_common_loop_wait+0x1b) [0x7fd4e5c44e5b]
     #20 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(smbd_process+0x6c9) [0x7fd4e8cad569]
     #21 smbd(+0x96b6) [0x7fd4e97666b6]
     #22 /usr/lib/x86_64-linux-gnu/libsmbconf.so.0(run_events_poll+0x16c) [0x7fd4e6feea8c]
     #23 /usr/lib/x86_64-linux-gnu/libsmbconf.so.0(+0x25ce0) [0x7fd4e6feece0]
     #24 /usr/lib/x86_64-linux-gnu/libtevent.so.0(_tevent_loop_once+0x8d) [0x7fd4e5c44cbd]
     #25 /usr/lib/x86_64-linux-gnu/libtevent.so.0(tevent_common_loop_wait+0x1b) [0x7fd4e5c44e5b]
     #26 smbd(main+0x15b4) [0x7fd4e97646c4]
     #27 /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf5) [0x7fd4e589dec5]
     #28 smbd(+0x7a96) [0x7fd4e9764a96]
  [2016/04/30 11:10:50.999674,  0] ../source3/lib/util.c:801(smb_panic_s3)
    smb_panic(): calling panic action [/usr/share/samba/panic-action 2781]
  [2016/04/30 11:10:51.008676,  0] ../source3/lib/util.c:809(smb_panic_s3)
    smb_panic(): action returned status 0
  [2016/04/30 11:10:51.009105,  0] ../source3/lib/dumpcore.c:318(dump_core)
    dumping core in /var/log/samba/cores/smbd
  [2016/04/30 11:10:51.826277,  0] ../source3/param/loadparm.c:3245(process_usershare_file)
    process_usershare_file: stat of /var/lib/samba/usershares/tv shows failed. Permission denied
  [2016/04/30 11:10:52.271547,  0] ../source3/param/loadparm.c:3245(process_usershare_file)
    process_usershare_file: stat of /var/lib/samba/usershares/tv shows failed. Permission denied
  [2016/04/30 11:12:57.780274,  0] ../source3/param/loadparm.c:3245(process_usershare_file)
    process_usershare_file: stat of /var/lib/samba/usershares/tv shows failed. Permission denied
  [2016/04/30 11:12:58.269830,  0] ../source3/param/loadparm.c:3245(process_usershare_file)
    process_usershare_file: stat of /var/lib/samba/usershares/tv shows failed. Permission denied
  [2016/04/30 11:12:58.274016,  0] ../source3/param/loadparm.c:3245(process_usershare_file)
    process_usershare_file: stat of /var/lib/samba/usershares/tv shows failed. Permission denied
  [2016/04/30 11:12:58.692782,  0] ../source3/param/loadparm.c:3245(process_usershare_file)
    process_usershare_file: stat of /var/lib/samba/usershares/tv shows failed. Permission denied
  [2016/04/30 11:12:59.060290,  0] ../source3/param/loadparm.c:3245(process_usershare_file)
    process_usershare_file: stat of /var/lib/samba/usershares/tv shows failed. Permission denied
  [2016/04/30 11:12:59.069069,  0] ../source3/param/loadparm.c:3245(process_usershare_file)
    process_usershare_file: stat of /var/lib/samba/usershares/tv shows failed. Permission denied
  [2016/04/30 11:12:59.253290,  0] ../lib/util/fault.c:78(fault_report)
    ===============================================================
  [2016/04/30 11:12:59.253399,  0] ../lib/util/fault.c:79(fault_report)
    INTERNAL ERROR: Signal 11 in pid 2785 (4.3.8-Ubuntu)
    Please read the Trouble-Shooting section of the Samba HOWTO
  [2016/04/30 11:12:59.253455,  0] ../lib/util/fault.c:81(fault_report)
    ===============================================================
  [2016/04/30 11:12:59.253501,  0] ../source3/lib/util.c:789(smb_panic_s3)
    PANIC (pid 2785): internal error
  [2016/04/30 11:12:59.255634,  0] ../source3/lib/util.c:900(log_stack_trace)
    BACKTRACE: 29 stack frames:
     #0 /usr/lib/x86_64-linux-gnu/samba/libsmbregistry.so.0(log_stack_trace+0x1a) [0x7fd4e835616a]
     #1 /usr/lib/x86_64-linux-gnu/samba/libsmbregistry.so.0(smb_panic_s3+0x20) [0x7fd4e8356240]
     #2 /usr/lib/x86_64-linux-gnu/libsamba-util.so.0(smb_panic+0x2f) [0x7fd4e90cc8ef]
     #3 /usr/lib/x86_64-linux-gnu/libsamba-util.so.0(+0x1bb06) [0x7fd4e90ccb06]
     #4 /lib/x86_64-linux-gnu/libpthread.so.0(+0x10340) [0x7fd4e932a340]
     #5 /lib/x86_64-linux-gnu/libc.so.6(strlen+0x2a) [0x7fd4e5904aea]
     #6 /usr/lib/x86_64-linux-gnu/libsamba-util.so.0(push_ucs2_talloc+0x1e) [0x7fd4e90c657e]
     #7 /usr/lib/x86_64-linux-gnu/samba/libcliauth.so.0(E_md4hash+0x1e) [0x7fd4e7e1349e]
     #8 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(create_volume_objectid+0x3a) [0x7fd4e8c766aa]
     #9 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(+0x1d92db) [0x7fd4e8d5d2db]
     #10 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(smb_vfs_call_fsctl+0x58) [0x7fd4e8c9a9e8]
     #11 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(smb2_ioctl_filesys+0x249) [0x7fd4e8ccda29]
     #12 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(smbd_smb2_request_process_ioctl+0x7ee) [0x7fd4e8ccd3be]
     #13 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(smbd_smb2_request_dispatch+0xc7d) [0x7fd4e8cbe41d]
     #14 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(smbd_smb2_request_dispatch_immediate+0x75) [0x7fd4e8cbe915]
     #15 /usr/lib/x86_64-linux-gnu/libtevent.so.0(tevent_common_loop_immediate+0xd4) [0x7fd4e5c454e4]
     #16 /usr/lib/x86_64-linux-gnu/libsmbconf.so.0(run_events_poll+0x3c) [0x7fd4e6fee95c]
     #17 /usr/lib/x86_64-linux-gnu/libsmbconf.so.0(+0x25c44) [0x7fd4e6feec44]
     #18 /usr/lib/x86_64-linux-gnu/libtevent.so.0(_tevent_loop_once+0x8d) [0x7fd4e5c44cbd]
     #19 /usr/lib/x86_64-linux-gnu/libtevent.so.0(tevent_common_loop_wait+0x1b) [0x7fd4e5c44e5b]
     #20 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(smbd_process+0x6c9) [0x7fd4e8cad569]
     #21 smbd(+0x96b6) [0x7fd4e97666b6]
     #22 /usr/lib/x86_64-linux-gnu/libsmbconf.so.0(run_events_poll+0x16c) [0x7fd4e6feea8c]
     #23 /usr/lib/x86_64-linux-gnu/libsmbconf.so.0(+0x25ce0) [0x7fd4e6feece0]
     #24 /usr/lib/x86_64-linux-gnu/libtevent.so.0(_tevent_loop_once+0x8d) [0x7fd4e5c44cbd]
     #25 /usr/lib/x86_64-linux-gnu/libtevent.so.0(tevent_common_loop_wait+0x1b) [0x7fd4e5c44e5b]
     #26 smbd(main+0x15b4) [0x7fd4e97646c4]
     #27 /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf5) [0x7fd4e589dec5]
     #28 smbd(+0x7a96) [0x7fd4e9764a96]
  [2016/04/30 11:12:59.256281,  0] ../source3/lib/util.c:801(smb_panic_s3)
    smb_panic(): calling panic action [/usr/share/samba/panic-action 2785]
  [2016/04/30 11:12:59.265248,  0] ../source3/lib/util.c:809(smb_panic_s3)
    smb_panic(): action returned status 0
  [2016/04/30 11:12:59.265512,  0] ../source3/lib/dumpcore.c:318(dump_core)
    dumping core in /var/log/samba/cores/smbd
  [2016/04/30 11:13:00.039090,  0] ../source3/param/loadparm.c:3245(process_usershare_file)
    process_usershare_file: stat of /var/lib/samba/usershares/tv shows failed. Permission denied
  [2016/04/30 11:13:00.231678,  0] ../lib/util/fault.c:78(fault_report)
    ===============================================================
  [2016/04/30 11:13:00.231790,  0] ../lib/util/fault.c:79(fault_report)
    INTERNAL ERROR: Signal 11 in pid 2795 (4.3.8-Ubuntu)
    Please read the Trouble-Shooting section of the Samba HOWTO
  [2016/04/30 11:13:00.231853,  0] ../lib/util/fault.c:81(fault_report)
    ===============================================================
  [2016/04/30 11:13:00.231890,  0] ../source3/lib/util.c:789(smb_panic_s3)
    PANIC (pid 2795): internal error
  [2016/04/30 11:13:00.234015,  0] ../source3/lib/util.c:900(log_stack_trace)
    BACKTRACE: 29 stack frames:
     #0 /usr/lib/x86_64-linux-gnu/samba/libsmbregistry.so.0(log_stack_trace+0x1a) [0x7fd4e835616a]
     #1 /usr/lib/x86_64-linux-gnu/samba/libsmbregistry.so.0(smb_panic_s3+0x20) [0x7fd4e8356240]
     #2 /usr/lib/x86_64-linux-gnu/libsamba-util.so.0(smb_panic+0x2f) [0x7fd4e90cc8ef]
     #3 /usr/lib/x86_64-linux-gnu/libsamba-util.so.0(+0x1bb06) [0x7fd4e90ccb06]
     #4 /lib/x86_64-linux-gnu/libpthread.so.0(+0x10340) [0x7fd4e932a340]
     #5 /lib/x86_64-linux-gnu/libc.so.6(strlen+0x2a) [0x7fd4e5904aea]
     #6 /usr/lib/x86_64-linux-gnu/libsamba-util.so.0(push_ucs2_talloc+0x1e) [0x7fd4e90c657e]
     #7 /usr/lib/x86_64-linux-gnu/samba/libcliauth.so.0(E_md4hash+0x1e) [0x7fd4e7e1349e]
     #8 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(create_volume_objectid+0x3a) [0x7fd4e8c766aa]
     #9 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(+0x1d92db) [0x7fd4e8d5d2db]
     #10 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(smb_vfs_call_fsctl+0x58) [0x7fd4e8c9a9e8]
     #11 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(smb2_ioctl_filesys+0x249) [0x7fd4e8ccda29]
     #12 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(smbd_smb2_request_process_ioctl+0x7ee) [0x7fd4e8ccd3be]
     #13 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(smbd_smb2_request_dispatch+0xc7d) [0x7fd4e8cbe41d]
     #14 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(smbd_smb2_request_dispatch_immediate+0x75) [0x7fd4e8cbe915]
     #15 /usr/lib/x86_64-linux-gnu/libtevent.so.0(tevent_common_loop_immediate+0xd4) [0x7fd4e5c454e4]
     #16 /usr/lib/x86_64-linux-gnu/libsmbconf.so.0(run_events_poll+0x3c) [0x7fd4e6fee95c]
     #17 /usr/lib/x86_64-linux-gnu/libsmbconf.so.0(+0x25c44) [0x7fd4e6feec44]
     #18 /usr/lib/x86_64-linux-gnu/libtevent.so.0(_tevent_loop_once+0x8d) [0x7fd4e5c44cbd]
     #19 /usr/lib/x86_64-linux-gnu/libtevent.so.0(tevent_common_loop_wait+0x1b) [0x7fd4e5c44e5b]
     #20 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(smbd_process+0x6c9) [0x7fd4e8cad569]
     #21 smbd(+0x96b6) [0x7fd4e97666b6]
     #22 /usr/lib/x86_64-linux-gnu/libsmbconf.so.0(run_events_poll+0x16c) [0x7fd4e6feea8c]
     #23 /usr/lib/x86_64-linux-gnu/libsmbconf.so.0(+0x25ce0) [0x7fd4e6feece0]
     #24 /usr/lib/x86_64-linux-gnu/libtevent.so.0(_tevent_loop_once+0x8d) [0x7fd4e5c44cbd]
     #25 /usr/lib/x86_64-linux-gnu/libtevent.so.0(tevent_common_loop_wait+0x1b) [0x7fd4e5c44e5b]
     #26 smbd(main+0x15b4) [0x7fd4e97646c4]
     #27 /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf5) [0x7fd4e589dec5]
     #28 smbd(+0x7a96) [0x7fd4e9764a96]
  [2016/04/30 11:13:00.234551,  0] ../source3/lib/util.c:801(smb_panic_s3)
    smb_panic(): calling panic action [/usr/share/samba/panic-action 2795]
  [2016/04/30 11:13:00.243191,  0] ../source3/lib/util.c:809(smb_panic_s3)
    smb_panic(): action returned status 0
  [2016/04/30 11:13:00.243414,  0] ../source3/lib/dumpcore.c:318(dump_core)
    dumping core in /var/log/samba/cores/smbd
  [2016/04/30 11:13:01.051254,  0] ../source3/param/loadparm.c:3245(process_usershare_file)
    process_usershare_file: stat of /var/lib/samba/usershares/tv shows failed. Permission denied
  [2016/04/30 11:13:01.269358,  0] ../lib/util/fault.c:78(fault_report)
    ===============================================================
  [2016/04/30 11:13:01.269534,  0] ../lib/util/fault.c:79(fault_report)
    INTERNAL ERROR: Signal 11 in pid 2799 (4.3.8-Ubuntu)
    Please read the Trouble-Shooting section of the Samba HOWTO
  [2016/04/30 11:13:01.269596,  0] ../lib/util/fault.c:81(fault_report)
    ===============================================================
  [2016/04/30 11:13:01.269650,  0] ../source3/lib/util.c:789(smb_panic_s3)
    PANIC (pid 2799): internal error
  [2016/04/30 11:13:01.271784,  0] ../source3/lib/util.c:900(log_stack_trace)
    BACKTRACE: 29 stack frames:
     #0 /usr/lib/x86_64-linux-gnu/samba/libsmbregistry.so.0(log_stack_trace+0x1a) [0x7fd4e835616a]
     #1 /usr/lib/x86_64-linux-gnu/samba/libsmbregistry.so.0(smb_panic_s3+0x20) [0x7fd4e8356240]
     #2 /usr/lib/x86_64-linux-gnu/libsamba-util.so.0(smb_panic+0x2f) [0x7fd4e90cc8ef]
     #3 /usr/lib/x86_64-linux-gnu/libsamba-util.so.0(+0x1bb06) [0x7fd4e90ccb06]
     #4 /lib/x86_64-linux-gnu/libpthread.so.0(+0x10340) [0x7fd4e932a340]
     #5 /lib/x86_64-linux-gnu/libc.so.6(strlen+0x2a) [0x7fd4e5904aea]
     #6 /usr/lib/x86_64-linux-gnu/libsamba-util.so.0(push_ucs2_talloc+0x1e) [0x7fd4e90c657e]
     #7 /usr/lib/x86_64-linux-gnu/samba/libcliauth.so.0(E_md4hash+0x1e) [0x7fd4e7e1349e]
     #8 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(create_volume_objectid+0x3a) [0x7fd4e8c766aa]
     #9 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(+0x1d92db) [0x7fd4e8d5d2db]
     #10 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(smb_vfs_call_fsctl+0x58) [0x7fd4e8c9a9e8]
     #11 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(smb2_ioctl_filesys+0x249) [0x7fd4e8ccda29]
     #12 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(smbd_smb2_request_process_ioctl+0x7ee) [0x7fd4e8ccd3be]
     #13 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(smbd_smb2_request_dispatch+0xc7d) [0x7fd4e8cbe41d]
     #14 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(smbd_smb2_request_dispatch_immediate+0x75) [0x7fd4e8cbe915]
     #15 /usr/lib/x86_64-linux-gnu/libtevent.so.0(tevent_common_loop_immediate+0xd4) [0x7fd4e5c454e4]
     #16 /usr/lib/x86_64-linux-gnu/libsmbconf.so.0(run_events_poll+0x3c) [0x7fd4e6fee95c]
     #17 /usr/lib/x86_64-linux-gnu/libsmbconf.so.0(+0x25c44) [0x7fd4e6feec44]
     #18 /usr/lib/x86_64-linux-gnu/libtevent.so.0(_tevent_loop_once+0x8d) [0x7fd4e5c44cbd]
     #19 /usr/lib/x86_64-linux-gnu/libtevent.so.0(tevent_common_loop_wait+0x1b) [0x7fd4e5c44e5b]
     #20 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(smbd_process+0x6c9) [0x7fd4e8cad569]
     #21 smbd(+0x96b6) [0x7fd4e97666b6]
     #22 /usr/lib/x86_64-linux-gnu/libsmbconf.so.0(run_events_poll+0x16c) [0x7fd4e6feea8c]
     #23 /usr/lib/x86_64-linux-gnu/libsmbconf.so.0(+0x25ce0) [0x7fd4e6feece0]
     #24 /usr/lib/x86_64-linux-gnu/libtevent.so.0(_tevent_loop_once+0x8d) [0x7fd4e5c44cbd]
     #25 /usr/lib/x86_64-linux-gnu/libtevent.so.0(tevent_common_loop_wait+0x1b) [0x7fd4e5c44e5b]
     #26 smbd(main+0x15b4) [0x7fd4e97646c4]
     #27 /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf5) [0x7fd4e589dec5]
     #28 smbd(+0x7a96) [0x7fd4e9764a96]
  [2016/04/30 11:13:01.272478,  0] ../source3/lib/util.c:801(smb_panic_s3)
    smb_panic(): calling panic action [/usr/share/samba/panic-action 2799]
  [2016/04/30 11:13:01.281669,  0] ../source3/lib/util.c:809(smb_panic_s3)
    smb_panic(): action returned status 0
  [2016/04/30 11:13:01.281892,  0] ../source3/lib/dumpcore.c:318(dump_core)
    dumping core in /var/log/samba/cores/smbd
  [2016/04/30 11:13:02.052354,  0] ../source3/param/loadparm.c:3245(process_usershare_file)
    process_usershare_file: stat of /var/lib/samba/usershares/tv shows failed. Permission denied
  [2016/04/30 11:13:02.278720,  0] ../lib/util/fault.c:78(fault_report)
    ===============================================================
  [2016/04/30 11:13:02.278829,  0] ../lib/util/fault.c:79(fault_report)
    INTERNAL ERROR: Signal 11 in pid 2803 (4.3.8-Ubuntu)
    Please read the Trouble-Shooting section of the Samba HOWTO
  [2016/04/30 11:13:02.278889,  0] ../lib/util/fault.c:81(fault_report)
    ===============================================================
  [2016/04/30 11:13:02.278981,  0] ../source3/lib/util.c:789(smb_panic_s3)
    PANIC (pid 2803): internal error
  [2016/04/30 11:13:02.281126,  0] ../source3/lib/util.c:900(log_stack_trace)
    BACKTRACE: 28 stack frames:
     #0 /usr/lib/x86_64-linux-gnu/samba/libsmbregistry.so.0(log_stack_trace+0x1a) [0x7fd4e835616a]
     #1 /usr/lib/x86_64-linux-gnu/samba/libsmbregistry.so.0(smb_panic_s3+0x20) [0x7fd4e8356240]
     #2 /usr/lib/x86_64-linux-gnu/libsamba-util.so.0(smb_panic+0x2f) [0x7fd4e90cc8ef]
     #3 /usr/lib/x86_64-linux-gnu/libsamba-util.so.0(+0x1bb06) [0x7fd4e90ccb06]
     #4 /lib/x86_64-linux-gnu/libpthread.so.0(+0x10340) [0x7fd4e932a340]
     #5 /lib/x86_64-linux-gnu/libc.so.6(strlen+0x2a) [0x7fd4e5904aea]
     #6 /usr/lib/x86_64-linux-gnu/libsamba-util.so.0(push_ucs2_talloc+0x1e) [0x7fd4e90c657e]
     #7 /usr/lib/x86_64-linux-gnu/samba/libcliauth.so.0(E_md4hash+0x1e) [0x7fd4e7e1349e]
     #8 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(create_volume_objectid+0x3a) [0x7fd4e8c766aa]
     #9 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(+0x1d92db) [0x7fd4e8d5d2db]
     #10 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(smb_vfs_call_fsctl+0x58) [0x7fd4e8c9a9e8]
     #11 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(smb2_ioctl_filesys+0x249) [0x7fd4e8ccda29]
     #12 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(smbd_smb2_request_process_ioctl+0x7ee) [0x7fd4e8ccd3be]
     #13 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(smbd_smb2_request_dispatch+0xc7d) [0x7fd4e8cbe41d]
     #14 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(+0x13b072) [0x7fd4e8cbf072]
     #15 /usr/lib/x86_64-linux-gnu/libsmbconf.so.0(run_events_poll+0x16c) [0x7fd4e6feea8c]
     #16 /usr/lib/x86_64-linux-gnu/libsmbconf.so.0(+0x25ce0) [0x7fd4e6feece0]
     #17 /usr/lib/x86_64-linux-gnu/libtevent.so.0(_tevent_loop_once+0x8d) [0x7fd4e5c44cbd]
     #18 /usr/lib/x86_64-linux-gnu/libtevent.so.0(tevent_common_loop_wait+0x1b) [0x7fd4e5c44e5b]
     #19 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(smbd_process+0x6c9) [0x7fd4e8cad569]
     #20 smbd(+0x96b6) [0x7fd4e97666b6]
     #21 /usr/lib/x86_64-linux-gnu/libsmbconf.so.0(run_events_poll+0x16c) [0x7fd4e6feea8c]
     #22 /usr/lib/x86_64-linux-gnu/libsmbconf.so.0(+0x25ce0) [0x7fd4e6feece0]
     #23 /usr/lib/x86_64-linux-gnu/libtevent.so.0(_tevent_loop_once+0x8d) [0x7fd4e5c44cbd]
     #24 /usr/lib/x86_64-linux-gnu/libtevent.so.0(tevent_common_loop_wait+0x1b) [0x7fd4e5c44e5b]
     #25 smbd(main+0x15b4) [0x7fd4e97646c4]
     #26 /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf5) [0x7fd4e589dec5]
     #27 smbd(+0x7a96) [0x7fd4e9764a96]
  [2016/04/30 11:13:02.281663,  0] ../source3/lib/util.c:801(smb_panic_s3)
    smb_panic(): calling panic action [/usr/share/samba/panic-action 2803]
  [2016/04/30 11:13:02.290739,  0] ../source3/lib/util.c:809(smb_panic_s3)
    smb_panic(): action returned status 0
  [2016/04/30 11:13:02.290970,  0] ../source3/lib/dumpcore.c:318(dump_core)
    dumping core in /var/log/samba/cores/smbd
  [2016/04/30 11:13:03.097722,  0] ../source3/param/loadparm.c:3245(process_usershare_file)
    process_usershare_file: stat of /var/lib/samba/usershares/tv shows failed. Permission denied
  [2016/04/30 11:13:03.329323,  0] ../lib/util/fault.c:78(fault_report)
    ===============================================================
  [2016/04/30 11:13:03.329449,  0] ../lib/util/fault.c:79(fault_report)
    INTERNAL ERROR: Signal 11 in pid 2807 (4.3.8-Ubuntu)
    Please read the Trouble-Shooting section of the Samba HOWTO
  [2016/04/30 11:13:03.329508,  0] ../lib/util/fault.c:81(fault_report)
    ===============================================================
  [2016/04/30 11:13:03.329556,  0] ../source3/lib/util.c:789(smb_panic_s3)
    PANIC (pid 2807): internal error
  [2016/04/30 11:13:03.331684,  0] ../source3/lib/util.c:900(log_stack_trace)
    BACKTRACE: 29 stack frames:
     #0 /usr/lib/x86_64-linux-gnu/samba/libsmbregistry.so.0(log_stack_trace+0x1a) [0x7fd4e835616a]
     #1 /usr/lib/x86_64-linux-gnu/samba/libsmbregistry.so.0(smb_panic_s3+0x20) [0x7fd4e8356240]
     #2 /usr/lib/x86_64-linux-gnu/libsamba-util.so.0(smb_panic+0x2f) [0x7fd4e90cc8ef]
     #3 /usr/lib/x86_64-linux-gnu/libsamba-util.so.0(+0x1bb06) [0x7fd4e90ccb06]
     #4 /lib/x86_64-linux-gnu/libpthread.so.0(+0x10340) [0x7fd4e932a340]
     #5 /lib/x86_64-linux-gnu/libc.so.6(strlen+0x2a) [0x7fd4e5904aea]
     #6 /usr/lib/x86_64-linux-gnu/libsamba-util.so.0(push_ucs2_talloc+0x1e) [0x7fd4e90c657e]
     #7 /usr/lib/x86_64-linux-gnu/samba/libcliauth.so.0(E_md4hash+0x1e) [0x7fd4e7e1349e]
     #8 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(create_volume_objectid+0x3a) [0x7fd4e8c766aa]
     #9 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(+0x1d92db) [0x7fd4e8d5d2db]
     #10 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(smb_vfs_call_fsctl+0x58) [0x7fd4e8c9a9e8]
     #11 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(smb2_ioctl_filesys+0x249) [0x7fd4e8ccda29]
     #12 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(smbd_smb2_request_process_ioctl+0x7ee) [0x7fd4e8ccd3be]
     #13 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(smbd_smb2_request_dispatch+0xc7d) [0x7fd4e8cbe41d]
     #14 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(smbd_smb2_request_dispatch_immediate+0x75) [0x7fd4e8cbe915]
     #15 /usr/lib/x86_64-linux-gnu/libtevent.so.0(tevent_common_loop_immediate+0xd4) [0x7fd4e5c454e4]
     #16 /usr/lib/x86_64-linux-gnu/libsmbconf.so.0(run_events_poll+0x3c) [0x7fd4e6fee95c]
     #17 /usr/lib/x86_64-linux-gnu/libsmbconf.so.0(+0x25c44) [0x7fd4e6feec44]
     #18 /usr/lib/x86_64-linux-gnu/libtevent.so.0(_tevent_loop_once+0x8d) [0x7fd4e5c44cbd]
     #19 /usr/lib/x86_64-linux-gnu/libtevent.so.0(tevent_common_loop_wait+0x1b) [0x7fd4e5c44e5b]
     #20 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(smbd_process+0x6c9) [0x7fd4e8cad569]
     #21 smbd(+0x96b6) [0x7fd4e97666b6]
     #22 /usr/lib/x86_64-linux-gnu/libsmbconf.so.0(run_events_poll+0x16c) [0x7fd4e6feea8c]
     #23 /usr/lib/x86_64-linux-gnu/libsmbconf.so.0(+0x25ce0) [0x7fd4e6feece0]
     #24 /usr/lib/x86_64-linux-gnu/libtevent.so.0(_tevent_loop_once+0x8d) [0x7fd4e5c44cbd]
     #25 /usr/lib/x86_64-linux-gnu/libtevent.so.0(tevent_common_loop_wait+0x1b) [0x7fd4e5c44e5b]
     #26 smbd(main+0x15b4) [0x7fd4e97646c4]
     #27 /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf5) [0x7fd4e589dec5]
     #28 smbd(+0x7a96) [0x7fd4e9764a96]
  [2016/04/30 11:13:03.332423,  0] ../source3/lib/util.c:801(smb_panic_s3)
    smb_panic(): calling panic action [/usr/share/samba/panic-action 2807]
  [2016/04/30 11:13:03.341457,  0] ../source3/lib/util.c:809(smb_panic_s3)
    smb_panic(): action returned status 0
  [2016/04/30 11:13:03.341682,  0] ../source3/lib/dumpcore.c:318(dump_core)
    dumping core in /var/log/samba/cores/smbd
  [2016/04/30 11:13:04.155501,  0] ../source3/param/loadparm.c:3245(process_usershare_file)
    process_usershare_file: stat of /var/lib/samba/usershares/tv shows failed. Permission denied
  [2016/04/30 11:13:04.416238,  0] ../lib/util/fault.c:78(fault_report)
    ===============================================================
  [2016/04/30 11:13:04.416353,  0] ../lib/util/fault.c:79(fault_report)
    INTERNAL ERROR: Signal 11 in pid 2811 (4.3.8-Ubuntu)
    Please read the Trouble-Shooting section of the Samba HOWTO
  [2016/04/30 11:13:04.416418,  0] ../lib/util/fault.c:81(fault_report)
    ===============================================================
  [2016/04/30 11:13:04.416459,  0] ../source3/lib/util.c:789(smb_panic_s3)
    PANIC (pid 2811): internal error
  [2016/04/30 11:13:04.418578,  0] ../source3/lib/util.c:900(log_stack_trace)
    BACKTRACE: 28 stack frames:
     #0 /usr/lib/x86_64-linux-gnu/samba/libsmbregistry.so.0(log_stack_trace+0x1a) [0x7fd4e835616a]
     #1 /usr/lib/x86_64-linux-gnu/samba/libsmbregistry.so.0(smb_panic_s3+0x20) [0x7fd4e8356240]
     #2 /usr/lib/x86_64-linux-gnu/libsamba-util.so.0(smb_panic+0x2f) [0x7fd4e90cc8ef]
     #3 /usr/lib/x86_64-linux-gnu/libsamba-util.so.0(+0x1bb06) [0x7fd4e90ccb06]
     #4 /lib/x86_64-linux-gnu/libpthread.so.0(+0x10340) [0x7fd4e932a340]
     #5 /lib/x86_64-linux-gnu/libc.so.6(strlen+0x2a) [0x7fd4e5904aea]
     #6 /usr/lib/x86_64-linux-gnu/libsamba-util.so.0(push_ucs2_talloc+0x1e) [0x7fd4e90c657e]
     #7 /usr/lib/x86_64-linux-gnu/samba/libcliauth.so.0(E_md4hash+0x1e) [0x7fd4e7e1349e]
     #8 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(create_volume_objectid+0x3a) [0x7fd4e8c766aa]
     #9 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(+0x1d92db) [0x7fd4e8d5d2db]
     #10 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(smb_vfs_call_fsctl+0x58) [0x7fd4e8c9a9e8]
     #11 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(smb2_ioctl_filesys+0x249) [0x7fd4e8ccda29]
     #12 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(smbd_smb2_request_process_ioctl+0x7ee) [0x7fd4e8ccd3be]
     #13 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(smbd_smb2_request_dispatch+0xc7d) [0x7fd4e8cbe41d]
     #14 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(+0x13b072) [0x7fd4e8cbf072]
     #15 /usr/lib/x86_64-linux-gnu/libsmbconf.so.0(run_events_poll+0x16c) [0x7fd4e6feea8c]
     #16 /usr/lib/x86_64-linux-gnu/libsmbconf.so.0(+0x25ce0) [0x7fd4e6feece0]
     #17 /usr/lib/x86_64-linux-gnu/libtevent.so.0(_tevent_loop_once+0x8d) [0x7fd4e5c44cbd]
     #18 /usr/lib/x86_64-linux-gnu/libtevent.so.0(tevent_common_loop_wait+0x1b) [0x7fd4e5c44e5b]
     #19 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(smbd_process+0x6c9) [0x7fd4e8cad569]
     #20 smbd(+0x96b6) [0x7fd4e97666b6]
     #21 /usr/lib/x86_64-linux-gnu/libsmbconf.so.0(run_events_poll+0x16c) [0x7fd4e6feea8c]
     #22 /usr/lib/x86_64-linux-gnu/libsmbconf.so.0(+0x25ce0) [0x7fd4e6feece0]
     #23 /usr/lib/x86_64-linux-gnu/libtevent.so.0(_tevent_loop_once+0x8d) [0x7fd4e5c44cbd]
     #24 /usr/lib/x86_64-linux-gnu/libtevent.so.0(tevent_common_loop_wait+0x1b) [0x7fd4e5c44e5b]
     #25 smbd(main+0x15b4) [0x7fd4e97646c4]
     #26 /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf5) [0x7fd4e589dec5]
     #27 smbd(+0x7a96) [0x7fd4e9764a96]
  [2016/04/30 11:13:04.419200,  0] ../source3/lib/util.c:801(smb_panic_s3)
    smb_panic(): calling panic action [/usr/share/samba/panic-action 2811]
  [2016/04/30 11:13:04.428188,  0] ../source3/lib/util.c:809(smb_panic_s3)
    smb_panic(): action returned status 0
  [2016/04/30 11:13:04.428418,  0] ../source3/lib/dumpcore.c:318(dump_core)
    dumping core in /var/log/samba/cores/smbd
  [2016/04/30 11:13:05.245468,  0] ../source3/param/loadparm.c:3245(process_usershare_file)
    process_usershare_file: stat of /var/lib/samba/usershares/tv shows failed. Permission denied
  [2016/04/30 11:13:05.712922,  0] ../source3/param/loadparm.c:3245(process_usershare_file)
    process_usershare_file: stat of /var/lib/samba/usershares/tv shows failed. Permission denied
  [2016/04/30 11:13:06.202549,  0] ../source3/param/loadparm.c:3245(process_usershare_file)
    process_usershare_file: stat of /var/lib/samba/usershares/tv shows failed. Permission denied
  [2016/04/30 11:13:06.439680,  0] ../lib/util/fault.c:78(fault_report)
    ===============================================================
  [2016/04/30 11:13:06.439807,  0] ../lib/util/fault.c:79(fault_report)
    INTERNAL ERROR: Signal 11 in pid 2815 (4.3.8-Ubuntu)
    Please read the Trouble-Shooting section of the Samba HOWTO
  [2016/04/30 11:13:06.439871,  0] ../lib/util/fault.c:81(fault_report)
    ===============================================================
  [2016/04/30 11:13:06.439910,  0] ../source3/lib/util.c:789(smb_panic_s3)
    PANIC (pid 2815): internal error
  [2016/04/30 11:13:06.442133,  0] ../source3/lib/util.c:900(log_stack_trace)
    BACKTRACE: 29 stack frames:
     #0 /usr/lib/x86_64-linux-gnu/samba/libsmbregistry.so.0(log_stack_trace+0x1a) [0x7fd4e835616a]
     #1 /usr/lib/x86_64-linux-gnu/samba/libsmbregistry.so.0(smb_panic_s3+0x20) [0x7fd4e8356240]
     #2 /usr/lib/x86_64-linux-gnu/libsamba-util.so.0(smb_panic+0x2f) [0x7fd4e90cc8ef]
     #3 /usr/lib/x86_64-linux-gnu/libsamba-util.so.0(+0x1bb06) [0x7fd4e90ccb06]
     #4 /lib/x86_64-linux-gnu/libpthread.so.0(+0x10340) [0x7fd4e932a340]
     #5 /lib/x86_64-linux-gnu/libc.so.6(strlen+0x2a) [0x7fd4e5904aea]
     #6 /usr/lib/x86_64-linux-gnu/libsamba-util.so.0(push_ucs2_talloc+0x1e) [0x7fd4e90c657e]
     #7 /usr/lib/x86_64-linux-gnu/samba/libcliauth.so.0(E_md4hash+0x1e) [0x7fd4e7e1349e]
     #8 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(create_volume_objectid+0x3a) [0x7fd4e8c766aa]
     #9 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(+0x1d92db) [0x7fd4e8d5d2db]
     #10 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(smb_vfs_call_fsctl+0x58) [0x7fd4e8c9a9e8]
     #11 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(smb2_ioctl_filesys+0x249) [0x7fd4e8ccda29]
     #12 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(smbd_smb2_request_process_ioctl+0x7ee) [0x7fd4e8ccd3be]
     #13 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(smbd_smb2_request_dispatch+0xc7d) [0x7fd4e8cbe41d]
     #14 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(smbd_smb2_request_dispatch_immediate+0x75) [0x7fd4e8cbe915]
     #15 /usr/lib/x86_64-linux-gnu/libtevent.so.0(tevent_common_loop_immediate+0xd4) [0x7fd4e5c454e4]
     #16 /usr/lib/x86_64-linux-gnu/libsmbconf.so.0(run_events_poll+0x3c) [0x7fd4e6fee95c]
     #17 /usr/lib/x86_64-linux-gnu/libsmbconf.so.0(+0x25c44) [0x7fd4e6feec44]
     #18 /usr/lib/x86_64-linux-gnu/libtevent.so.0(_tevent_loop_once+0x8d) [0x7fd4e5c44cbd]
     #19 /usr/lib/x86_64-linux-gnu/libtevent.so.0(tevent_common_loop_wait+0x1b) [0x7fd4e5c44e5b]
     #20 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(smbd_process+0x6c9) [0x7fd4e8cad569]
     #21 smbd(+0x96b6) [0x7fd4e97666b6]
     #22 /usr/lib/x86_64-linux-gnu/libsmbconf.so.0(run_events_poll+0x16c) [0x7fd4e6feea8c]
     #23 /usr/lib/x86_64-linux-gnu/libsmbconf.so.0(+0x25ce0) [0x7fd4e6feece0]
     #24 /usr/lib/x86_64-linux-gnu/libtevent.so.0(_tevent_loop_once+0x8d) [0x7fd4e5c44cbd]
     #25 /usr/lib/x86_64-linux-gnu/libtevent.so.0(tevent_common_loop_wait+0x1b) [0x7fd4e5c44e5b]
     #26 smbd(main+0x15b4) [0x7fd4e97646c4]
     #27 /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf5) [0x7fd4e589dec5]
     #28 smbd(+0x7a96) [0x7fd4e9764a96]
  [2016/04/30 11:13:06.442742,  0] ../source3/lib/util.c:801(smb_panic_s3)
    smb_panic(): calling panic action [/usr/share/samba/panic-action 2815]
  [2016/04/30 11:13:06.452205,  0] ../source3/lib/util.c:809(smb_panic_s3)
    smb_panic(): action returned status 0
  [2016/04/30 11:13:06.452440,  0] ../source3/lib/dumpcore.c:318(dump_core)
    dumping core in /var/log/samba/cores/smbd
  [2016/04/30 11:13:07.259039,  0] ../source3/param/loadparm.c:3245(process_usershare_file)
    process_usershare_file: stat of /var/lib/samba/usershares/tv shows failed. Permission denied
  [2016/04/30 11:13:07.522631,  0] ../lib/util/fault.c:78(fault_report)
    ===============================================================
  [2016/04/30 11:13:07.522792,  0] ../lib/util/fault.c:79(fault_report)
    INTERNAL ERROR: Signal 11 in pid 2819 (4.3.8-Ubuntu)
    Please read the Trouble-Shooting section of the Samba HOWTO
  [2016/04/30 11:13:07.522857,  0] ../lib/util/fault.c:81(fault_report)
    ===============================================================
  [2016/04/30 11:13:07.522895,  0] ../source3/lib/util.c:789(smb_panic_s3)
    PANIC (pid 2819): internal error
  [2016/04/30 11:13:07.525109,  0] ../source3/lib/util.c:900(log_stack_trace)
    BACKTRACE: 28 stack frames:
     #0 /usr/lib/x86_64-linux-gnu/samba/libsmbregistry.so.0(log_stack_trace+0x1a) [0x7fd4e835616a]
     #1 /usr/lib/x86_64-linux-gnu/samba/libsmbregistry.so.0(smb_panic_s3+0x20) [0x7fd4e8356240]
     #2 /usr/lib/x86_64-linux-gnu/libsamba-util.so.0(smb_panic+0x2f) [0x7fd4e90cc8ef]
     #3 /usr/lib/x86_64-linux-gnu/libsamba-util.so.0(+0x1bb06) [0x7fd4e90ccb06]
     #4 /lib/x86_64-linux-gnu/libpthread.so.0(+0x10340) [0x7fd4e932a340]
     #5 /lib/x86_64-linux-gnu/libc.so.6(strlen+0x2a) [0x7fd4e5904aea]
     #6 /usr/lib/x86_64-linux-gnu/libsamba-util.so.0(push_ucs2_talloc+0x1e) [0x7fd4e90c657e]
     #7 /usr/lib/x86_64-linux-gnu/samba/libcliauth.so.0(E_md4hash+0x1e) [0x7fd4e7e1349e]
     #8 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(create_volume_objectid+0x3a) [0x7fd4e8c766aa]
     #9 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(+0x1d92db) [0x7fd4e8d5d2db]
     #10 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(smb_vfs_call_fsctl+0x58) [0x7fd4e8c9a9e8]
     #11 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(smb2_ioctl_filesys+0x249) [0x7fd4e8ccda29]
     #12 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(smbd_smb2_request_process_ioctl+0x7ee) [0x7fd4e8ccd3be]
     #13 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(smbd_smb2_request_dispatch+0xc7d) [0x7fd4e8cbe41d]
     #14 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(+0x13b072) [0x7fd4e8cbf072]
     #15 /usr/lib/x86_64-linux-gnu/libsmbconf.so.0(run_events_poll+0x16c) [0x7fd4e6feea8c]
     #16 /usr/lib/x86_64-linux-gnu/libsmbconf.so.0(+0x25ce0) [0x7fd4e6feece0]
     #17 /usr/lib/x86_64-linux-gnu/libtevent.so.0(_tevent_loop_once+0x8d) [0x7fd4e5c44cbd]
     #18 /usr/lib/x86_64-linux-gnu/libtevent.so.0(tevent_common_loop_wait+0x1b) [0x7fd4e5c44e5b]
     #19 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(smbd_process+0x6c9) [0x7fd4e8cad569]
     #20 smbd(+0x96b6) [0x7fd4e97666b6]
     #21 /usr/lib/x86_64-linux-gnu/libsmbconf.so.0(run_events_poll+0x16c) [0x7fd4e6feea8c]
     #22 /usr/lib/x86_64-linux-gnu/libsmbconf.so.0(+0x25ce0) [0x7fd4e6feece0]
     #23 /usr/lib/x86_64-linux-gnu/libtevent.so.0(_tevent_loop_once+0x8d) [0x7fd4e5c44cbd]
     #24 /usr/lib/x86_64-linux-gnu/libtevent.so.0(tevent_common_loop_wait+0x1b) [0x7fd4e5c44e5b]
     #25 smbd(main+0x15b4) [0x7fd4e97646c4]
     #26 /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf5) [0x7fd4e589dec5]
     #27 smbd(+0x7a96) [0x7fd4e9764a96]
  [2016/04/30 11:13:07.525677,  0] ../source3/lib/util.c:801(smb_panic_s3)
    smb_panic(): calling panic action [/usr/share/samba/panic-action 2819]
  [2016/04/30 11:13:07.535039,  0] ../source3/lib/util.c:809(smb_panic_s3)
    smb_panic(): action returned status 0
  [2016/04/30 11:13:07.535265,  0] ../source3/lib/dumpcore.c:318(dump_core)
    dumping core in /var/log/samba/cores/smbd

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