Samba4 - random crash

[Taylor, Jonn]

About once a week samba4 alpha 14 is randomly crashing.

CentOS 5.5 x86_64
Samba4 alpha14 tar ball

[Sat Jan 29 22:00:02 2011 CST, 0
../librpc/rpc/dcerpc_smb.c:311:smb_write_callback()]
dcerpc_smb: write callback error
[Sat Jan 29 22:00:02 2011 CST, 0 ../../lib/util/debug.c:185:talloc_log_fn()]
talloc: double free error - first free may be at
../librpc/rpc/dcerpc_smb.c:390
[Sat Jan 29 22:00:02 2011 CST, 0 ../../lib/util/debug.c:185:talloc_log_fn()]
Bad talloc magic value - double free
[Sat Jan 29 22:00:02 2011 CST, 0 ../../lib/util/fault.c:143:smb_panic()]
PANIC: Bad talloc magic value - double free
[Sat Jan 29 22:00:02 2011 CST, 0 ../../lib/util/fault.c:62:call_backtrace()]
BACKTRACE: 20 stack frames:
 #0 /usr/local/samba/lib/libsamba-util.so.0(call_backtrace+0x1c)
[0x2ac0181a1f4c]
 #1 /usr/local/samba/lib/libsamba-util.so.0(smb_panic+0x1f1)
[0x2ac0181a21eb]
 #2 /usr/local/samba/lib/samba/libtalloc-samba4.so.2 [0x2ac0189f8c5a]
 #3 /usr/local/samba/lib/samba/libtalloc-samba4.so.2 [0x2ac0189f8cd9]
 #4 /usr/local/samba/lib/samba/libtalloc-samba4.so.2 [0x2ac0189f8def]
 #5
/usr/local/samba/lib/samba/libtalloc-samba4.so.2(talloc_get_name+0x15)
[0x2ac0189fa3c0]
 #6
/usr/local/samba/lib/samba/libtalloc-samba4.so.2(talloc_check_name+0x33)
[0x2ac0189fa450]
 #7 /usr/local/samba/lib/libdcerpc.so.0 [0x2ac0194e5bc6]
 #8 /usr/local/samba/lib/libdcerpc.so.0 [0x2ac01952add3]
 #9 /usr/local/samba/lib/samba/libauthkrb5-samba4.so(packet_recv+0x8f7)
[0x2ac01afbd840]
 #10 /usr/local/samba/lib/libdcerpc.so.0 [0x2ac019529b0f]
 #11 /usr/local/samba/lib/samba/libtevent-samba4.so.0 [0x2ac0187f1faa]
 #12 /usr/local/samba/lib/samba/libtevent-samba4.so.0 [0x2ac0187f2688]
 #13
/usr/local/samba/lib/samba/libtevent-samba4.so.0(_tevent_loop_once+0xdf)
[0x2ac0187ee5bb]
 #14
/usr/local/samba/lib/samba/libtevent-samba4.so.0(tevent_common_loop_wait+0x1f)
[0x2ac0187ee7e0]
 #15
/usr/local/samba/lib/samba/libtevent-samba4.so.0(_tevent_loop_wait+0x25)
[0x2ac0187ee89c]
 #16 /usr/local/samba/sbin/samba [0x40a4bb]
 #17 /usr/local/samba/sbin/samba [0x40a509]
 #18 /lib64/libc.so.6(__libc_start_main+0xf4) [0x35c761d994]
 #19 /usr/local/samba/sbin/samba [0x404429]