smbd with CTDB is aborted at update_num_read_oplocks

Issue

• smbd with CTDB is aborted at update_num_read_oplocks

Sample backtrace:

(gdb) bt
#0  0x00007f8338a405d7 in raise () from /lib64/libc.so.6
#1  0x00007f8338a41cc8 in abort () from /lib64/libc.so.6
#2  0x00007f833a39f39b in dump_core () from /lib64/libsmbconf.so.0
#3  0x00007f833a391e27 in smb_panic_s3 () from /lib64/libsmbconf.so.0
#4  0x00007f833c1e18cf in smb_panic () from /lib64/libsamba-util.so.0
#5  0x00007f833bdef259 in update_num_read_oplocks () from /usr/lib64/samba/libsmbd-base-samba4.so
#6  0x00007f833bd9a292 in open_file_ntcreate () from /usr/lib64/samba/libsmbd-base-samba4.so
#7  0x00007f833bd9cd19 in create_file_unixpath () from /usr/lib64/samba/libsmbd-base-samba4.so
#8  0x00007f833bd9dd7f in create_file_default () from /usr/lib64/samba/libsmbd-base-samba4.so
#9  0x00007f833be7537e in vfswrap_create_file () from /usr/lib64/samba/libsmbd-base-samba4.so
#10 0x00007f833bda45c8 in smb_vfs_call_create_file () from /usr/lib64/samba/libsmbd-base-samba4.so
#11 0x00007f833bdd351a in smbd_smb2_request_process_create () from /usr/lib64/samba/libsmbd-base-samba4.so
#12 0x00007f833bdcb7df in smbd_smb2_request_dispatch () from /usr/lib64/samba/libsmbd-base-samba4.so
#13 0x00007f833bdcca72 in smbd_smb2_connection_handler () from /usr/lib64/samba/libsmbd-base-samba4.so
#14 0x00007f833a3a791c in run_events_poll () from /lib64/libsmbconf.so.0
#15 0x00007f833a3a7b70 in s3_event_loop_once () from /lib64/libsmbconf.so.0
#16 0x00007f8338dcffbd in _tevent_loop_once () from /lib64/libtevent.so.0
#17 0x00007f8338dd015b in tevent_common_loop_wait () from /lib64/libtevent.so.0
#18 0x00007f833bdb9ce9 in smbd_process () from /usr/lib64/samba/libsmbd-base-samba4.so
#19 0x00007f833c845e44 in smbd_accept_connection ()
#20 0x00007f833a3a791c in run_events_poll () from /lib64/libsmbconf.so.0
#21 0x00007f833a3a7b70 in s3_event_loop_once () from /lib64/libsmbconf.so.0
#22 0x00007f8338dcffbd in _tevent_loop_once () from /lib64/libtevent.so.0
#23 0x00007f8338dd015b in tevent_common_loop_wait () from /lib64/libtevent.so.0
#24 0x00007f833c842361 in main ()
(gdb) f 5
#5  0x00007f833bdef259 in update_num_read_oplocks (fsp=fsp@entry=0x7f833cda9700, lck=lck@entry=0x7f833ce00360) at ../source3/smbd/oplock.c:192
192         SMB_ASSERT(d->num_share_modes == 1);
(gdb)