i encounter smb_panic problem, log text
[2019/08/12 15:17:43.344133, 1] ../source3/printing/printer_list.c:234(printer_list_get_last_refresh)
Failed to fetch record!
[2019/08/12 15:17:43.344204, 1] ../source3/smbd/server_reload.c:64(delete_and_reload_printers)
pcap cache not loaded
[2019/08/12 15:17:43.346405, 1] ../source3/printing/printer_list.c:234(printer_list_get_last_refresh)
Failed to fetch record!
[2019/08/12 15:17:43.346442, 1] ../source3/smbd/server_reload.c:64(delete_and_reload_printers)
pcap cache not loaded
[2019/08/12 15:17:43.350196, 1] ../source3/printing/printer_list.c:234(printer_list_get_last_refresh)
Failed to fetch record!
[2019/08/12 15:17:43.350252, 1] ../source3/smbd/server_reload.c:64(delete_and_reload_printers)
pcap cache not loaded
[2019/08/12 15:17:46.469143, 0] ../source3/lib/popt_common.c:67(popt_s3_talloc_log_fn)
talloc: access after free error - first free may be at ../lib/util/memcache.c:219
[2019/08/12 15:17:46.469251, 0] ../source3/lib/popt_common.c:67(popt_s3_talloc_log_fn)
Bad talloc magic value - access after free
[2019/08/12 15:17:46.469275, 0] ../source3/lib/util.c:816(smb_panic_s3)
PANIC (pid 49911): Bad talloc magic value - access after free
[2019/08/12 15:17:46.470900, 0] ../lib/util/fault.c:261(log_stack_trace)
BACKTRACE: 24 stack frames:
#0 0x8018a9487 <log_stack_trace+0x37> at /usr/local/lib/samba4/libsamba-util.so.0
#1 0x80215b0c2 <smb_panic_s3+0x52> at /usr/local/lib/samba4/libsmbconf.so.0
#2 0x8018a9277 <smb_panic+0x17> at /usr/local/lib/samba4/libsamba-util.so.0
#3 0x804f416f5 <talloc_set_memlimit+0x6f5> at /usr/local/lib/libtalloc.so.2
#4 0x804f4179f <talloc_set_memlimit+0x79f> at /usr/local/lib/libtalloc.so.2
#5 0x801d617fb <create_file_default+0x516b> at /usr/local/lib/samba4/private/libsmbd-base-samba4.so
#6 0x801d5d8ce <create_file_default+0x123e> at /usr/local/lib/samba4/private/libsmbd-base-samba4.so
#7 0x801d5c8a4 <create_file_default+0x214> at /usr/local/lib/samba4/private/libsmbd-base-samba4.so
#8 0x801d9bb34 <smbd_smb2_request_process_create+0x1694> at /usr/local/lib/samba4/private/libsmbd-base-samba4.so
#9 0x801d91ef7 <smbd_smb2_request_dispatch+0xc27> at /usr/local/lib/samba4/private/libsmbd-base-samba4.so
#10 0x801d9524d <smbd_smb2_process_negprot+0x193d> at /usr/local/lib/samba4/private/libsmbd-base-samba4.so
#11 0x805358afd <tevent_common_invoke_fd_handler+0x8d> at /usr/local/lib/libtevent.so.0
#12 0x80535b85b <tevent_context_same_loop+0xcfb> at /usr/local/lib/libtevent.so.0
#13 0x805357e4e <_tevent_loop_once+0xce> at /usr/local/lib/libtevent.so.0
#14 0x80535808b <tevent_common_loop_wait+0x5b> at /usr/local/lib/libtevent.so.0
#15 0x801d802cd <smbd_process+0x8ad> at /usr/local/lib/samba4/private/libsmbd-base-samba4.so
#16 0x102eb4f <main+0x460f> at /usr/local/sbin/smbd
#17 0x805358afd <tevent_common_invoke_fd_handler+0x8d> at /usr/local/lib/libtevent.so.0
#18 0x80535b85b <tevent_context_same_loop+0xcfb> at /usr/local/lib/libtevent.so.0
#19 0x805357e4e <_tevent_loop_once+0xce> at /usr/local/lib/libtevent.so.0
#20 0x80535808b <tevent_common_loop_wait+0x5b> at /usr/local/lib/libtevent.so.0
#21 0x102cf84 <main+0x2a44> at /usr/local/sbin/smbd
#22 0x102c331 <main+0x1df1> at /usr/local/sbin/smbd
#23 0x1027ec5 <_start+0xa5> at /usr/local/sbin/smbd
[2019/08/12 15:17:46.471218, 0] ../source3/lib/dumpcore.c:315(dump_core)
dumping core in /var/db/system/cores
[2019/08/12 15:17:46.480188, 0] ../source3/lib/popt_common.c:67(popt_s3_talloc_log_fn)
talloc: access after free error - first free may be at ../lib/util/memcache.c:219
[2019/08/12 15:17:46.480265, 0] ../source3/lib/popt_common.c:67(popt_s3_talloc_log_fn)
Bad talloc magic value - access after free
[2019/08/12 15:17:46.480288, 0] ../source3/lib/util.c:816(smb_panic_s3)
PANIC (pid 49920): Bad talloc magic value - access after free
[2019/08/12 15:17:46.481714, 0] ../lib/util/fault.c:261(log_stack_trace)
BACKTRACE: 24 stack frames:
#0 0x8018a9487 <log_stack_trace+0x37> at /usr/local/lib/samba4/libsamba-util.so.0
#1 0x80215b0c2 <smb_panic_s3+0x52> at /usr/local/lib/samba4/libsmbconf.so.0
#2 0x8018a9277 <smb_panic+0x17> at /usr/local/lib/samba4/libsamba-util.so.0
#3 0x804f416f5 <talloc_set_memlimit+0x6f5> at /usr/local/lib/libtalloc.so.2
#4 0x804f4179f <talloc_set_memlimit+0x79f> at /usr/local/lib/libtalloc.so.2
#5 0x801d617fb <create_file_default+0x516b> at /usr/local/lib/samba4/private/libsmbd-base-samba4.so
#6 0x801d5d8ce <create_file_default+0x123e> at /usr/local/lib/samba4/private/libsmbd-base-samba4.so
#7 0x801d5c8a4 <create_file_default+0x214> at /usr/local/lib/samba4/private/libsmbd-base-samba4.so
#8 0x801d9bb34 <smbd_smb2_request_process_create+0x1694> at /usr/local/lib/samba4/private/libsmbd-base-samba4.so
#9 0x801d91ef7 <smbd_smb2_request_dispatch+0xc27> at /usr/local/lib/samba4/private/libsmbd-base-samba4.so
#10 0x801d9524d <smbd_smb2_process_negprot+0x193d> at /usr/local/lib/samba4/private/libsmbd-base-samba4.so
#11 0x805358afd <tevent_common_invoke_fd_handler+0x8d> at /usr/local/lib/libtevent.so.0
#12 0x80535b85b <tevent_context_same_loop+0xcfb> at /usr/local/lib/libtevent.so.0
#13 0x805357e4e <_tevent_loop_once+0xce> at /usr/local/lib/libtevent.so.0
#14 0x80535808b <tevent_common_loop_wait+0x5b> at /usr/local/lib/libtevent.so.0
#15 0x801d802cd <smbd_process+0x8ad> at /usr/local/lib/samba4/private/libsmbd-base-samba4.so
#16 0x102eb4f <main+0x460f> at /usr/local/sbin/smbd
#17 0x805358afd <tevent_common_invoke_fd_handler+0x8d> at /usr/local/lib/libtevent.so.0
#18 0x80535b85b <tevent_context_same_loop+0xcfb> at /usr/local/lib/libtevent.so.0
#19 0x805357e4e <_tevent_loop_once+0xce> at /usr/local/lib/libtevent.so.0
#20 0x80535808b <tevent_common_loop_wait+0x5b> at /usr/local/lib/libtevent.so.0
#21 0x102cf84 <main+0x2a44> at /usr/local/sbin/smbd
#22 0x102c331 <main+0x1df1> at /usr/local/sbin/smbd
#23 0x1027ec5 <_start+0xa5> at /usr/local/sbin/smbd
[2019/08/12 15:17:46.482015, 0] ../source3/lib/dumpcore.c:315(dump_core)
dumping core in /var/db/system/cores
[2019/08/12 15:17:46.493652, 0] ../source3/lib/popt_common.c:67(popt_s3_talloc_log_fn)
talloc: access after free error - first free may be at ../lib/util/memcache.c:219
[2019/08/12 15:17:46.493710, 0] ../source3/lib/popt_common.c:67(popt_s3_talloc_log_fn)
Bad talloc magic value - access after free
[2019/08/12 15:17:46.493733, 0] ../source3/lib/util.c:816(smb_panic_s3)
PANIC (pid 49942): Bad talloc magic value - access after free
[2019/08/12 15:17:46.495129, 0] ../lib/util/fault.c:261(log_stack_trace)
BACKTRACE: 24 stack frames:
#0 0x8018a9487 <log_stack_trace+0x37> at /usr/local/lib/samba4/libsamba-util.so.0
#1 0x80215b0c2 <smb_panic_s3+0x52> at /usr/local/lib/samba4/libsmbconf.so.0
#2 0x8018a9277 <smb_panic+0x17> at /usr/local/lib/samba4/libsamba-util.so.0
#3 0x804f416f5 <talloc_set_memlimit+0x6f5> at /usr/local/lib/libtalloc.so.2
#4 0x804f4179f <talloc_set_memlimit+0x79f> at /usr/local/lib/libtalloc.so.2
#5 0x801d617fb <create_file_default+0x516b> at /usr/local/lib/samba4/private/libsmbd-base-samba4.so
#6 0x801d5d8ce <create_file_default+0x123e> at /usr/local/lib/samba4/private/libsmbd-base-samba4.so
#7 0x801d5c8a4 <create_file_default+0x214> at /usr/local/lib/samba4/private/libsmbd-base-samba4.so
#8 0x801d9bb34 <smbd_smb2_request_process_create+0x1694> at /usr/local/lib/samba4/private/libsmbd-base-samba4.so
#9 0x801d91ef7 <smbd_smb2_request_dispatch+0xc27> at /usr/local/lib/samba4/private/libsmbd-base-samba4.so
#10 0x801d9524d <smbd_smb2_process_negprot+0x193d> at /usr/local/lib/samba4/private/libsmbd-base-samba4.so
#11 0x805358afd <tevent_common_invoke_fd_handler+0x8d> at /usr/local/lib/libtevent.so.0
#12 0x80535b85b <tevent_context_same_loop+0xcfb> at /usr/local/lib/libtevent.so.0
#13 0x805357e4e <_tevent_loop_once+0xce> at /usr/local/lib/libtevent.so.0
#14 0x80535808b <tevent_common_loop_wait+0x5b> at /usr/local/lib/libtevent.so.0
#15 0x801d802cd <smbd_process+0x8ad> at /usr/local/lib/samba4/private/libsmbd-base-samba4.so
#16 0x102eb4f <main+0x460f> at /usr/local/sbin/smbd
#17 0x805358afd <tevent_common_invoke_fd_handler+0x8d> at /usr/local/lib/libtevent.so.0
#18 0x80535b85b <tevent_context_same_loop+0xcfb> at /usr/local/lib/libtevent.so.0
#19 0x805357e4e <_tevent_loop_once+0xce> at /usr/local/lib/libtevent.so.0
#20 0x80535808b <tevent_common_loop_wait+0x5b> at /usr/local/lib/libtevent.so.0
#21 0x102cf84 <main+0x2a44> at /usr/local/sbin/smbd
#22 0x102c331 <main+0x1df1> at /usr/local/sbin/smbd
#23 0x1027ec5 <_start+0xa5> at /usr/local/sbin/smbd
[2019/08/12 15:17:43.344133, 1] ../source3/printing/printer_list.c:234(printer_list_get_last_refresh)
Failed to fetch record!
[2019/08/12 15:17:43.344204, 1] ../source3/smbd/server_reload.c:64(delete_and_reload_printers)
pcap cache not loaded
[2019/08/12 15:17:43.346405, 1] ../source3/printing/printer_list.c:234(printer_list_get_last_refresh)
Failed to fetch record!
[2019/08/12 15:17:43.346442, 1] ../source3/smbd/server_reload.c:64(delete_and_reload_printers)
pcap cache not loaded
[2019/08/12 15:17:43.350196, 1] ../source3/printing/printer_list.c:234(printer_list_get_last_refresh)
Failed to fetch record!
[2019/08/12 15:17:43.350252, 1] ../source3/smbd/server_reload.c:64(delete_and_reload_printers)
pcap cache not loaded
[2019/08/12 15:17:46.469143, 0] ../source3/lib/popt_common.c:67(popt_s3_talloc_log_fn)
talloc: access after free error - first free may be at ../lib/util/memcache.c:219
[2019/08/12 15:17:46.469251, 0] ../source3/lib/popt_common.c:67(popt_s3_talloc_log_fn)
Bad talloc magic value - access after free
[2019/08/12 15:17:46.469275, 0] ../source3/lib/util.c:816(smb_panic_s3)
PANIC (pid 49911): Bad talloc magic value - access after free
[2019/08/12 15:17:46.470900, 0] ../lib/util/fault.c:261(log_stack_trace)
BACKTRACE: 24 stack frames:
#0 0x8018a9487 <log_stack_trace+0x37> at /usr/local/lib/samba4/libsamba-util.so.0
#1 0x80215b0c2 <smb_panic_s3+0x52> at /usr/local/lib/samba4/libsmbconf.so.0
#2 0x8018a9277 <smb_panic+0x17> at /usr/local/lib/samba4/libsamba-util.so.0
#3 0x804f416f5 <talloc_set_memlimit+0x6f5> at /usr/local/lib/libtalloc.so.2
#4 0x804f4179f <talloc_set_memlimit+0x79f> at /usr/local/lib/libtalloc.so.2
#5 0x801d617fb <create_file_default+0x516b> at /usr/local/lib/samba4/private/libsmbd-base-samba4.so
#6 0x801d5d8ce <create_file_default+0x123e> at /usr/local/lib/samba4/private/libsmbd-base-samba4.so
#7 0x801d5c8a4 <create_file_default+0x214> at /usr/local/lib/samba4/private/libsmbd-base-samba4.so
#8 0x801d9bb34 <smbd_smb2_request_process_create+0x1694> at /usr/local/lib/samba4/private/libsmbd-base-samba4.so
#9 0x801d91ef7 <smbd_smb2_request_dispatch+0xc27> at /usr/local/lib/samba4/private/libsmbd-base-samba4.so
#10 0x801d9524d <smbd_smb2_process_negprot+0x193d> at /usr/local/lib/samba4/private/libsmbd-base-samba4.so
#11 0x805358afd <tevent_common_invoke_fd_handler+0x8d> at /usr/local/lib/libtevent.so.0
#12 0x80535b85b <tevent_context_same_loop+0xcfb> at /usr/local/lib/libtevent.so.0
#13 0x805357e4e <_tevent_loop_once+0xce> at /usr/local/lib/libtevent.so.0
#14 0x80535808b <tevent_common_loop_wait+0x5b> at /usr/local/lib/libtevent.so.0
#15 0x801d802cd <smbd_process+0x8ad> at /usr/local/lib/samba4/private/libsmbd-base-samba4.so
#16 0x102eb4f <main+0x460f> at /usr/local/sbin/smbd
#17 0x805358afd <tevent_common_invoke_fd_handler+0x8d> at /usr/local/lib/libtevent.so.0
#18 0x80535b85b <tevent_context_same_loop+0xcfb> at /usr/local/lib/libtevent.so.0
#19 0x805357e4e <_tevent_loop_once+0xce> at /usr/local/lib/libtevent.so.0
#20 0x80535808b <tevent_common_loop_wait+0x5b> at /usr/local/lib/libtevent.so.0
#21 0x102cf84 <main+0x2a44> at /usr/local/sbin/smbd
#22 0x102c331 <main+0x1df1> at /usr/local/sbin/smbd
#23 0x1027ec5 <_start+0xa5> at /usr/local/sbin/smbd
[2019/08/12 15:17:46.471218, 0] ../source3/lib/dumpcore.c:315(dump_core)
dumping core in /var/db/system/cores
[2019/08/12 15:17:46.480188, 0] ../source3/lib/popt_common.c:67(popt_s3_talloc_log_fn)
talloc: access after free error - first free may be at ../lib/util/memcache.c:219
[2019/08/12 15:17:46.480265, 0] ../source3/lib/popt_common.c:67(popt_s3_talloc_log_fn)
Bad talloc magic value - access after free
[2019/08/12 15:17:46.480288, 0] ../source3/lib/util.c:816(smb_panic_s3)
PANIC (pid 49920): Bad talloc magic value - access after free
[2019/08/12 15:17:46.481714, 0] ../lib/util/fault.c:261(log_stack_trace)
BACKTRACE: 24 stack frames:
#0 0x8018a9487 <log_stack_trace+0x37> at /usr/local/lib/samba4/libsamba-util.so.0
#1 0x80215b0c2 <smb_panic_s3+0x52> at /usr/local/lib/samba4/libsmbconf.so.0
#2 0x8018a9277 <smb_panic+0x17> at /usr/local/lib/samba4/libsamba-util.so.0
#3 0x804f416f5 <talloc_set_memlimit+0x6f5> at /usr/local/lib/libtalloc.so.2
#4 0x804f4179f <talloc_set_memlimit+0x79f> at /usr/local/lib/libtalloc.so.2
#5 0x801d617fb <create_file_default+0x516b> at /usr/local/lib/samba4/private/libsmbd-base-samba4.so
#6 0x801d5d8ce <create_file_default+0x123e> at /usr/local/lib/samba4/private/libsmbd-base-samba4.so
#7 0x801d5c8a4 <create_file_default+0x214> at /usr/local/lib/samba4/private/libsmbd-base-samba4.so
#8 0x801d9bb34 <smbd_smb2_request_process_create+0x1694> at /usr/local/lib/samba4/private/libsmbd-base-samba4.so
#9 0x801d91ef7 <smbd_smb2_request_dispatch+0xc27> at /usr/local/lib/samba4/private/libsmbd-base-samba4.so
#10 0x801d9524d <smbd_smb2_process_negprot+0x193d> at /usr/local/lib/samba4/private/libsmbd-base-samba4.so
#11 0x805358afd <tevent_common_invoke_fd_handler+0x8d> at /usr/local/lib/libtevent.so.0
#12 0x80535b85b <tevent_context_same_loop+0xcfb> at /usr/local/lib/libtevent.so.0
#13 0x805357e4e <_tevent_loop_once+0xce> at /usr/local/lib/libtevent.so.0
#14 0x80535808b <tevent_common_loop_wait+0x5b> at /usr/local/lib/libtevent.so.0
#15 0x801d802cd <smbd_process+0x8ad> at /usr/local/lib/samba4/private/libsmbd-base-samba4.so
#16 0x102eb4f <main+0x460f> at /usr/local/sbin/smbd
#17 0x805358afd <tevent_common_invoke_fd_handler+0x8d> at /usr/local/lib/libtevent.so.0
#18 0x80535b85b <tevent_context_same_loop+0xcfb> at /usr/local/lib/libtevent.so.0
#19 0x805357e4e <_tevent_loop_once+0xce> at /usr/local/lib/libtevent.so.0
#20 0x80535808b <tevent_common_loop_wait+0x5b> at /usr/local/lib/libtevent.so.0
#21 0x102cf84 <main+0x2a44> at /usr/local/sbin/smbd
#22 0x102c331 <main+0x1df1> at /usr/local/sbin/smbd
#23 0x1027ec5 <_start+0xa5> at /usr/local/sbin/smbd
[2019/08/12 15:17:46.482015, 0] ../source3/lib/dumpcore.c:315(dump_core)
dumping core in /var/db/system/cores
[2019/08/12 15:17:46.493652, 0] ../source3/lib/popt_common.c:67(popt_s3_talloc_log_fn)
talloc: access after free error - first free may be at ../lib/util/memcache.c:219
[2019/08/12 15:17:46.493710, 0] ../source3/lib/popt_common.c:67(popt_s3_talloc_log_fn)
Bad talloc magic value - access after free
[2019/08/12 15:17:46.493733, 0] ../source3/lib/util.c:816(smb_panic_s3)
PANIC (pid 49942): Bad talloc magic value - access after free
[2019/08/12 15:17:46.495129, 0] ../lib/util/fault.c:261(log_stack_trace)
BACKTRACE: 24 stack frames:
#0 0x8018a9487 <log_stack_trace+0x37> at /usr/local/lib/samba4/libsamba-util.so.0
#1 0x80215b0c2 <smb_panic_s3+0x52> at /usr/local/lib/samba4/libsmbconf.so.0
#2 0x8018a9277 <smb_panic+0x17> at /usr/local/lib/samba4/libsamba-util.so.0
#3 0x804f416f5 <talloc_set_memlimit+0x6f5> at /usr/local/lib/libtalloc.so.2
#4 0x804f4179f <talloc_set_memlimit+0x79f> at /usr/local/lib/libtalloc.so.2
#5 0x801d617fb <create_file_default+0x516b> at /usr/local/lib/samba4/private/libsmbd-base-samba4.so
#6 0x801d5d8ce <create_file_default+0x123e> at /usr/local/lib/samba4/private/libsmbd-base-samba4.so
#7 0x801d5c8a4 <create_file_default+0x214> at /usr/local/lib/samba4/private/libsmbd-base-samba4.so
#8 0x801d9bb34 <smbd_smb2_request_process_create+0x1694> at /usr/local/lib/samba4/private/libsmbd-base-samba4.so
#9 0x801d91ef7 <smbd_smb2_request_dispatch+0xc27> at /usr/local/lib/samba4/private/libsmbd-base-samba4.so
#10 0x801d9524d <smbd_smb2_process_negprot+0x193d> at /usr/local/lib/samba4/private/libsmbd-base-samba4.so
#11 0x805358afd <tevent_common_invoke_fd_handler+0x8d> at /usr/local/lib/libtevent.so.0
#12 0x80535b85b <tevent_context_same_loop+0xcfb> at /usr/local/lib/libtevent.so.0
#13 0x805357e4e <_tevent_loop_once+0xce> at /usr/local/lib/libtevent.so.0
#14 0x80535808b <tevent_common_loop_wait+0x5b> at /usr/local/lib/libtevent.so.0
#15 0x801d802cd <smbd_process+0x8ad> at /usr/local/lib/samba4/private/libsmbd-base-samba4.so
#16 0x102eb4f <main+0x460f> at /usr/local/sbin/smbd
#17 0x805358afd <tevent_common_invoke_fd_handler+0x8d> at /usr/local/lib/libtevent.so.0
#18 0x80535b85b <tevent_context_same_loop+0xcfb> at /usr/local/lib/libtevent.so.0
#19 0x805357e4e <_tevent_loop_once+0xce> at /usr/local/lib/libtevent.so.0
#20 0x80535808b <tevent_common_loop_wait+0x5b> at /usr/local/lib/libtevent.so.0
#21 0x102cf84 <main+0x2a44> at /usr/local/sbin/smbd
#22 0x102c331 <main+0x1df1> at /usr/local/sbin/smbd
#23 0x1027ec5 <_start+0xa5> at /usr/local/sbin/smbd