Samba4 calling panic action frequently, built on Debian Squeeze from GIT, with squeeze-backports as a repository for dependencies.

===============================================================
INTERNAL ERROR: Signal 11 in pid 2907 (4.1.0pre1-GIT-f67ae78)
Please read the Trouble-Shooting section of the Samba HOWTO
===============================================================
PANIC (pid 2907): internal error
BACKTRACE: 44 stack frames:
 #0 /usr/local/samba/lib/libsmbconf.so.0(log_stack_trace+0x2b) [0xb715f4a8]
 #1 /usr/local/samba/lib/libsmbconf.so.0(smb_panic_s3+0x7f) [0xb715f306]
 #2 /usr/local/samba/lib/libsamba-util.so.0(smb_panic+0x2a) [0xb76ef71d]
 #3 /usr/local/samba/lib/libsamba-util.so.0(+0x193e7) [0xb76ef3e7]
 #4 /usr/local/samba/lib/libsamba-util.so.0(+0x193f8) [0xb76ef3f8]
 #5 [0xb7728400]
 #6 /usr/local/samba/lib/private/libsmbd_base.so(dptr_SeekDir+0x27) [0xb7457f81]
 #7 /usr/local/samba/lib/private/libsmbd_base.so(+0x171fc4) [0xb7515fc4]
 #8 /usr/local/samba/lib/private/libsmbd_base.so(smbd_smb2_request_process_find+0x452) [0xb75156ea]
 #9 /usr/local/samba/lib/private/libsmbd_base.so(smbd_smb2_request_dispatch+0xe42) [0xb7500c27]
 #10 /usr/local/samba/lib/private/libsmbd_base.so(+0x15ef7c) [0xb7502f7c]
 #11 /usr/local/samba/lib/private/libtevent.so.0(_tevent_req_notify_callback+0x5c) [0xb739ab4f]
 #12 /usr/local/samba/lib/private/libtevent.so.0(+0x4b82) [0xb739ab82]
 #13 /usr/local/samba/lib/private/libtevent.so.0(_tevent_req_done+0x20) [0xb739aba8]
 #14 /usr/local/samba/lib/private/libsmbd_base.so(+0x15e909) [0xb7502909]
 #15 /usr/local/samba/lib/private/libtevent.so.0(_tevent_req_notify_callback+0x5c) [0xb739ab4f]
 #16 /usr/local/samba/lib/private/libtevent.so.0(+0x4b82) [0xb739ab82]
 #17 /usr/local/samba/lib/private/libtevent.so.0(_tevent_req_done+0x20) [0xb739aba8]
 #18 /usr/local/samba/lib/private/libsamba-sockets.so(+0xb8a1) [0xb71348a1]
 #19 /usr/local/samba/lib/private/libtevent.so.0(_tevent_req_notify_callback+0x5c) [0xb739ab4f]
 #20 /usr/local/samba/lib/private/libtevent.so.0(+0x4b82) [0xb739ab82]
 #21 /usr/local/samba/lib/private/libtevent.so.0(_tevent_req_done+0x20) [0xb739aba8]
 #22 /usr/local/samba/lib/private/libsamba-sockets.so(+0xb32a) [0xb713432a]
 #23 /usr/local/samba/lib/private/libsamba-sockets.so(+0xb583) [0xb7134583]
 #24 /usr/local/samba/lib/private/libtevent.so.0(_tevent_req_notify_callback+0x5c) [0xb739ab4f]
 #25 /usr/local/samba/lib/private/libtevent.so.0(+0x4b82) [0xb739ab82]
 #26 /usr/local/samba/lib/private/libtevent.so.0(_tevent_req_done+0x20) [0xb739aba8]
 #27 /usr/local/samba/lib/private/libsamba-sockets.so(+0xa7f4) [0xb71337f4]
 #28 /usr/local/samba/lib/private/libtevent.so.0(_tevent_req_notify_callback+0x5c) [0xb739ab4f]
 #29 /usr/local/samba/lib/private/libtevent.so.0(+0x4b82) [0xb739ab82]
 #30 /usr/local/samba/lib/private/libtevent.so.0(+0x4ca6) [0xb739aca6]
 #31 /usr/local/samba/lib/private/libtevent.so.0(tevent_common_loop_immediate+0x1a4) [0xb739a1a5]
 #32 /usr/local/samba/lib/libsmbconf.so.0(run_events_poll+0x4a) [0xb717ac09]
 #33 /usr/local/samba/lib/libsmbconf.so.0(+0x3a1e7) [0xb717b1e7]
 #34 /usr/local/samba/lib/private/libtevent.so.0(_tevent_loop_once+0xf3) [0xb739954f]
 #35 /usr/local/samba/lib/private/libsmbd_base.so(smbd_process+0x13f7) [0xb74e5e85]
 #36 ./smbd() [0x8050983]
 #37 /usr/local/samba/lib/libsmbconf.so.0(run_events_poll+0x481) [0xb717b040]
 #38 /usr/local/samba/lib/libsmbconf.so.0(+0x3a30b) [0xb717b30b]
 #39 /usr/local/samba/lib/private/libtevent.so.0(_tevent_loop_once+0xf3) [0xb739954f]
 #40 ./smbd() [0x805190c]
 #41 ./smbd(main+0x16b3) [0x8053124]
 #42 /lib/libc.so.6(__libc_start_main+0xe6) [0xb6ad2c96]
 #43 ./smbd() [0x804c511]

# uname -a
Linux NFORCE 2.6.32-5-686 #1 SMP Mon Feb 25 01:04:36 UTC 2013 i686 GNU/Linux


# cat /etc/issue
Debian GNU/Linux 6.0 \n \l