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[Barry Skrypnyk <ubuntu@xxxxxxxxxxxxx>]

Public bug reported:

When one of the laptops on our network tries to attach to the Samba
share it creates these panic action results.

The Samba 'panic action' script, /usr/share/samba/panic-action, was
called for PID 32536 (/usr/sbin/smbd).

This means there was a problem with the program, such as a segfault.
Below is a backtrace for this process generated with gdb, which shows the state of the program at the time the error occurred.  The Samba log files may contain additional information about the problem.

If the problem persists, you are encouraged to first install the samba-dbg package, which contains the debugging symbols for the Samba binaries.  Then submit the provided information as a bug report to Ubuntu by visiting this link:
https://launchpad.net/ubuntu/+source/samba/+filebug

[Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
0x00007fbacb6db99c in __libc_waitpid (pid=32537, stat_loc=stat_loc@entry=0x7fffc63b7ad0, options=options@entry=0) at ../sysdeps/unix/sysv/linux/waitpid.c:31
#0  0x00007fbacb6db99c in __libc_waitpid (pid=32537, stat_loc=stat_loc@entry=0x7fffc63b7ad0, options=options@entry=0) at ../sysdeps/unix/sysv/linux/waitpid.c:31
#1  0x00007fbacb6605a2 in do_system (line=<optimized out>) at ../sysdeps/posix/system.c:148
#2  0x00007fbaccff5061 in smb_panic_s3 () from /usr/lib/x86_64-linux-gnu/libsmbconf.so.0
#3  0x00007fbace51dc6f in smb_panic () from /usr/lib/x86_64-linux-gnu/libsamba-util.so.0
#4  0x00007fbace0e6136 in ?? () from /usr/lib/x86_64-linux-gnu/samba/libsmbd_base.so.0
#5  0x00007fbace10ed2f in ?? () from /usr/lib/x86_64-linux-gnu/samba/libsmbd_base.so.0
#6  0x00007fbace10f8dc in make_connection_smb2 () from /usr/lib/x86_64-linux-gnu/samba/libsmbd_base.so.0
#7  0x00007fbace126224 in smbd_smb2_request_process_tcon () from /usr/lib/x86_64-linux-gnu/samba/libsmbd_base.so.0
#8  0x00007fbace11ffad in smbd_smb2_request_dispatch () from /usr/lib/x86_64-linux-gnu/samba/libsmbd_base.so.0
#9  0x00007fbace120c5b in ?? () from /usr/lib/x86_64-linux-gnu/samba/libsmbd_base.so.0
#10 0x00007fbace1218cc in ?? () from /usr/lib/x86_64-linux-gnu/samba/libsmbd_base.so.0
#11 0x00007fbacd00b0ac in run_events_poll () from /usr/lib/x86_64-linux-gnu/libsmbconf.so.0
#12 0x00007fbacd00b300 in ?? () from /usr/lib/x86_64-linux-gnu/libsmbconf.so.0
#13 0x00007fbacb9e35ed in _tevent_loop_once () from /usr/lib/x86_64-linux-gnu/libtevent.so.0
#14 0x00007fbace10d59a in smbd_process () from /usr/lib/x86_64-linux-gnu/samba/libsmbd_base.so.0
#15 0x00007fbaceb81fa4 in ?? ()
#16 0x00007fbacd00b0ac in run_events_poll () from /usr/lib/x86_64-linux-gnu/libsmbconf.so.0
#17 0x00007fbacd00b300 in ?? () from /usr/lib/x86_64-linux-gnu/libsmbconf.so.0
#18 0x00007fbacb9e35ed in _tevent_loop_once () from /usr/lib/x86_64-linux-gnu/libtevent.so.0
#19 0x00007fbaceb7eb8b in main ()
A debugging session is active.

        Inferior 1 [process 32536] will be detached.

Quit anyway? (y or n) [answered Y; input not from terminal]

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

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https://bugs.launchpad.net/bugs/1362790

Title:
  samba reports panic action

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