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[Bug 1818495] [NEW] Samba 'panic action' and segfault

 

Public bug reported:

Hey guys,

just this weekend I reveived an error mail with "Panic or segfault in
Samba" and the content below. The system was updated 2 weeks ago. So
there might be an issue with new commands in the config files?

Does anybody have a clue what on earth is going on?


*******************************

Mail:

The Samba 'panic action' script, /usr/share/samba/panic-action, was called for PID 14932 (/usr/sbin/smbd).
This means there was a problem with the program, such as a segfault.


[Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
0x00007effa0aa195c in __libc_waitpid (pid=15005, stat_loc=stat_loc@entry=0x7ffce9b2ca90, options=options@entry=0) at ../sysdeps/unix/sysv/linux/waitpid.c:31
#0  0x00007effa0aa195c in __libc_waitpid (pid=15005, stat_loc=stat_loc@entry=0x7ffce9b2ca90, options=options@entry=0) at ../sysdeps/unix/sysv/linux/waitpid.c:31
#1  0x00007effa0a23232 in do_system (line=line@entry=0x7effa4d16d60 "/usr/share/samba/panic-action 14932") at ../sysdeps/posix/system.c:148
#2  0x00007effa0a2359a in __libc_system (line=line@entry=0x7effa4d16d60 "/usr/share/samba/panic-action 14932") at ../sysdeps/posix/system.c:184
#3  0x00007effa4491225 in system (line=line@entry=0x7effa4d16d60 "/usr/share/samba/panic-action 14932") at pt-system.c:28
#4  0x00007effa34bc301 in smb_panic_s3 (why=<optimized out>) at ../source3/lib/util.c:802
#5  0x00007effa42338df in smb_panic (why=why@entry=0x7effa3f5ce58 "smbXsrv_session_logoff_all failed") at ../lib/util/fault.c:166
#6  0x00007effa3e37475 in exit_server_common (how=SERVER_EXIT_ABNORMAL, how@entry=SERVER_EXIT_NORMAL, reason=0x7effa3f5ce58 "smbXsrv_session_logoff_all failed") at ../source3/smbd/server_exit.c:246
#7  0x00007effa3e3776e in smbd_exit_server_cleanly (explanation=<optimized out>) at ../source3/smbd/server_exit.c:269
#8  0x00007effa1d14ca2 in exit_server_cleanly (reason=reason@entry=0x7effa3f0a661 "termination signal") at ../source3/lib/smbd_shim.c:131
#9  0x00007effa3e01490 in smbd_sig_term_handler (ev=<optimized out>, se=<optimized out>, signum=<optimized out>, count=<optimized out>, siginfo=<optimized out>, private_data=<optimized out>) at ../source3/smbd/process.c:970
#10 0x00007effa0dad967 in tevent_common_check_signal () from /usr/lib/x86_64-linux-gnu/libtevent.so.0
#11 0x00007effa2154814 in run_events_poll (ev=0x7effa4cbc450, pollrtn=-1, pfds=0x7effa4d07180, num_pfds=4) at ../source3/lib/events.c:187
#12 0x00007effa2154bb0 in s3_event_loop_once (ev=0x7effa4cbc450, location=<optimized out>) at ../source3/lib/events.c:326
#13 0x00007effa0da9d5d in _tevent_loop_once () from /usr/lib/x86_64-linux-gnu/libtevent.so.0
#14 0x00007effa0da9efb in tevent_common_loop_wait () from /usr/lib/x86_64-linux-gnu/libtevent.so.0
#15 0x00007effa3e081f9 in smbd_process (ev_ctx=0x7effa4cbc450, msg_ctx=<optimized out>, sock_fd=37, interactive=<optimized out>) at ../source3/smbd/process.c:4032
#16 0x00007effa48cd6b6 in smbd_accept_connection (ev=0x7effa4cbc450, fde=<optimized out>, flags=<optimized out>, private_data=<optimized out>) at ../source3/smbd/server.c:646
#17 0x00007effa215495c in run_events_poll (ev=0x7effa4cbc450, pollrtn=<optimized out>, pfds=0x7effa4d07180, num_pfds=6) at ../source3/lib/events.c:257
#18 0x00007effa2154bb0 in s3_event_loop_once (ev=0x7effa4cbc450, location=<optimized out>) at ../source3/lib/events.c:326
#19 0x00007effa0da9d5d in _tevent_loop_once () from /usr/lib/x86_64-linux-gnu/libtevent.so.0
#20 0x00007effa0da9efb in tevent_common_loop_wait () from /usr/lib/x86_64-linux-gnu/libtevent.so.0
#21 0x00007effa48cb6c4 in smbd_parent_loop (parent=<optimized out>, ev_ctx=0x7effa4cbc450) at ../source3/smbd/server.c:1011
#22 main (argc=<optimized out>, argv=<optimized out>) at ../source3/smbd/server.c:1663 A debugging session is active.

        Inferior 1 [process 14932] will be detached.


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** Affects: samba (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1818495

Title:
  Samba 'panic action' and segfault

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