[Samba] Core dumped on Samba 4.14.9

Fri Apr 1 13:48:15 UTC 2022

Hi

  I suddenly started getting segmentation faults in the primary DC. Does
anyone know how to deal with this? This is a production environment.

samba-tool user show thkam
===============================================================
INTERNAL ERROR: Signal 11: Segmentation fault in pid 1229 (4.14.9)
If you are running a recent Samba version, and if you think this problem is
not yet fixed in the latest versions, please consider reporting this bug,
see https://wiki.samba.org/index.php/Bug_Reporting
===============================================================
PANIC (pid 1229): Signal 11: Segmentation fault in 4.14.9
BACKTRACE:
 #0 log_stack_trace + 0x3b [ip=0x7fc1ff4b2fff] [sp=0x7ffcc6d3f8e0]
 #1 smb_panic_log + 0x1b5 [ip=0x7fc1ff4b2f73] [sp=0x7ffcc6d401f0]
 #2 smb_panic + 0x1c [ip=0x7fc1ff4b2f92] [sp=0x7ffcc6d40210]
 #3 fault_report + 0x91 [ip=0x7fc1ff4b2a96] [sp=0x7ffcc6d40230]
 #4 sig_fault + 0x19 [ip=0x7fc1ff4b2aaf] [sp=0x7ffcc6d402e0]
 #5 killpg + 0x40 [ip=0x7fc2005a30c0] [sp=0x7ffcc6d40300]
 #6 _dl_rtld_di_serinfo + 0x29f0 [ip=0x7fc20076ba80] [sp=0x7ffcc6d408c0]
 #7 _dl_find_dso_for_object + 0xadc [ip=0x7fc200773f5c] [sp=0x7ffcc6d409d0]
 #8 _dl_catch_exception + 0x88 [ip=0x7fc2006c0838] [sp=0x7ffcc6d40b30]
 #9 _dl_find_dso_for_object + 0x17a [ip=0x7fc2007735fa] [sp=0x7ffcc6d40c50]
 #10 <unknown symbol> [ip=0x7fc20053834c] [sp=0x7ffcc6d40d00]
 #11 _dl_catch_exception + 0x88 [ip=0x7fc2006c0838] [sp=0x7ffcc6d40d20]
 #12 _dl_catch_error + 0x33 [ip=0x7fc2006c0903] [sp=0x7ffcc6d40e40]
 #13 dlerror + 0x319 [ip=0x7fc200538b59] [sp=0x7ffcc6d40e80]
 #14 dlopen + 0x4a [ip=0x7fc2005383da] [sp=0x7ffcc6d40ea0]
 #15 ldb_modules_load_path + 0x3a9 [ip=0x7fc1ffb19471] [sp=0x7ffcc6d40ee0]
 #16 ldb_modules_load_dir + 0x2e0 [ip=0x7fc1ffb1984a] [sp=0x7ffcc6d40fd0]
 #17 ldb_modules_load_path + 0x373 [ip=0x7fc1ffb1943b] [sp=0x7ffcc6d41030]
 #18 ldb_modules_load + 0xc1 [ip=0x7fc1ffb19a7e] [sp=0x7ffcc6d41120]
 #19 ldb_init + 0x49 [ip=0x7fc1ffb11f47] [sp=0x7ffcc6d41170]
 #20 samba_ldb_init + 0x33 [ip=0x7fc1fb971254] [sp=0x7ffcc6d411b0]
 #21 ldb_wrap_connect + 0x43 [ip=0x7fc1fb9717a6] [sp=0x7ffcc6d41200]
 #22 secrets_db_connect + 0x42 [ip=0x7fc1fc86c182] [sp=0x7ffcc6d41250]
 #23 cli_credentials_set_secrets_lct + 0xbf [ip=0x7fc1fc863126]
[sp=0x7ffcc6d41280]
 #24 cli_credentials_set_machine_account_db_ctx + 0x40e [ip=0x7fc1fc863c67]
[sp=0x7ffcc6d41370]
 #25 cli_credentials_set_machine_account + 0xd4 [ip=0x7fc1fc863857]
[sp=0x7ffcc6d41440]
 #26 py_creds_set_machine_account + 0x142 [ip=0x7fc1ffcab019]
[sp=0x7ffcc6d41480]
 #27 PyDescr_NewMember + 0x28fd [ip=0x504c7d] [sp=0x7ffcc6d414e0]
 #28 _PyEval_EvalFrameDefault + 0x85a [ip=0x56b1da] [sp=0x7ffcc6d41520]
 #29 _PyEval_EvalCodeWithName + 0x26a [ip=0x56939a] [sp=0x7ffcc6d41650]
 #30 PyMethod_New + 0x490 [ip=0x50aaa0] [sp=0x7ffcc6d41710]
 #31 _PyEval_EvalFrameDefault + 0x190c [ip=0x56c28c] [sp=0x7ffcc6d41810]
 #32 _PyEval_EvalCodeWithName + 0x26a [ip=0x56939a] [sp=0x7ffcc6d41940]
 #33 _PyFunction_Vectorcall + 0x393 [ip=0x5f6a13] [sp=0x7ffcc6d41a00]
 #34 PyMethod_New + 0x939 [ip=0x50af49] [sp=0x7ffcc6d41ab0]
 #35 PyObject_Call + 0x1f7 [ip=0x5f3547] [sp=0x7ffcc6d41b60]
 #36 _PyEval_EvalFrameDefault + 0x1f4d [ip=0x56c8cd] [sp=0x7ffcc6d41bb0]
 #37 _PyEval_EvalCodeWithName + 0x26a [ip=0x56939a] [sp=0x7ffcc6d41ce0]
 #38 _PyFunction_Vectorcall + 0x393 [ip=0x5f6a13] [sp=0x7ffcc6d41da0]
 #39 PyMethod_New + 0x41c [ip=0x50aa2c] [sp=0x7ffcc6d41e50]
 #40 PyObject_Call + 0x1f7 [ip=0x5f3547] [sp=0x7ffcc6d41f00]
 #41 _PyEval_EvalFrameDefault + 0x1f4d [ip=0x56c8cd] [sp=0x7ffcc6d41f50]
 #42 _PyEval_EvalCodeWithName + 0x26a [ip=0x56939a] [sp=0x7ffcc6d42080]
 #43 _PyFunction_Vectorcall + 0x393 [ip=0x5f6a13] [sp=0x7ffcc6d42140]
 #44 PyMethod_New + 0x41c [ip=0x50aa2c] [sp=0x7ffcc6d421f0]
 #45 PyObject_Call + 0x1f7 [ip=0x5f3547] [sp=0x7ffcc6d422a0]
 #46 _PyEval_EvalFrameDefault + 0x1f4d [ip=0x56c8cd] [sp=0x7ffcc6d422f0]
 #47 _PyEval_EvalCodeWithName + 0x26a [ip=0x56939a] [sp=0x7ffcc6d42420]
 #48 _PyFunction_Vectorcall + 0x393 [ip=0x5f6a13] [sp=0x7ffcc6d424e0]
 #49 PyMethod_New + 0x41c [ip=0x50aa2c] [sp=0x7ffcc6d42590]
 #50 PyObject_Call + 0x1f7 [ip=0x5f3547] [sp=0x7ffcc6d42640]
 #51 _PyEval_EvalFrameDefault + 0x1f4d [ip=0x56c8cd] [sp=0x7ffcc6d42690]
 #52 _PyEval_EvalCodeWithName + 0x26a [ip=0x56939a] [sp=0x7ffcc6d427c0]
 #53 PyEval_EvalCode + 0x27 [ip=0x68d047] [sp=0x7ffcc6d42880]
 #54 _PyInterpreterState_Get + 0x71 [ip=0x67e351] [sp=0x7ffcc6d428e0]
 #55 _PyInterpreterState_Get + 0xef [ip=0x67e3cf] [sp=0x7ffcc6d42900]
 #56 _PyInterpreterState_Get + 0x191 [ip=0x67e471] [sp=0x7ffcc6d42920]
 #57 PyRun_SimpleFileExFlags + 0x197 [ip=0x67e817] [sp=0x7ffcc6d42970]
 #58 Py_RunMain + 0x212 [ip=0x6b6fe2] [sp=0x7ffcc6d429f0]
 #59 Py_BytesMain + 0x2d [ip=0x6b736d] [sp=0x7ffcc6d42ac0]
 #60 __libc_start_main + 0xf3 [ip=0x7fc2005840b3] [sp=0x7ffcc6d42af0]
 #61 _start + 0x2e [ip=0x5fa5ce] [sp=0x7ffcc6d42bc0]
Aborted (core dumped)

-- 
Dr. Thomas Kamalakis
Professor and Dean of the School of Digital Technology
Department of Informatics and Telematics, Harokopio University of Athens,
Greece
Omirou 9, Tavros, Athens, GR17778, Tel: +302109549406,
Web: https://galaxy.hua.gr/~thkam, Github:
https://github.com/thomaskamalakis/