This is happening to me regularly, once every 2 days or so. I recompiled ekeyd with debugging symbols, and installed the liblua5.1-dbg package and ran ekeyd under gdb to get me a backtrace, here it is:
(gdb) thread apply all bt
Thread 1 (process 12066):
#0 0xb7fc71e6 in luaV_gettable (L=0x8064040, t=0x8064088, key=0xbffff040,
val=0x8e3d6ffc) at lvm.c:117
#1 0xb7fb8bbc in lua_getfield (L=0x8064040, idx=-10002, k=0x8057de9 "ENTROPY")
at lapi.c:551
#2 0x0804a21d in lstate_foldback_entropy (
eblock=0xbffff180
"\325\064\301\026H\035\362a\022\071\330v\303CTGk\020d\\\277\233\032`\277\003\346\270\b\003\302q\001",
ecount=32) at lstate.c:496
#3 0x0804c351 in estream_write (state=0x8082ae8, buf=0xbffff180, count=32) at
stream.c:145
#4 0x0804bead in entropy_pkt_handler (state=0x808b6b8,
buf=0xbffff180
"\325\064\301\026H\035\362a\022\071\330v\303CTGk\020d\\\277\233\032`\277\003\346\270\b\003\302q\001",
count=32) at connection.c:407
#5 0x0804b7d9 in econ_run (con_state=0x808b6b8) at connection.c:605
#6 0x08049ed2 in ekey_fd_activity (fd=8, events=1, pw=0x808b6b8) at ekeyd.c:81
#7 0x0804d1ca in ekeyfd_poll (timeout=-1) at fds.c:99
#8 0x08049b14 in main (argc=1, argv=0xbffff354) at ekeyd.c:279
(gdb) bt full
#0 0xb7fc71e6 in luaV_gettable (L=0x8064040, t=0x8064088, key=0xbffff040,
val=0x8e3d6ffc) at lvm.c:117
res = 0x8081ad4
tm = 0x8064488
loop = 0
#1 0xb7fb8bbc in lua_getfield (L=0x8064040, idx=-10002, k=0x8057de9 "ENTROPY")
at lapi.c:551
t = 0x8064088
key = {value = {gc = 0x8067888, p = 0x8067888, n =
6.6521887874227949e-316, b = 134641800}, tt = 4}
#2 0x0804a21d in lstate_foldback_entropy (
eblock=0xbffff180
"\325\064\301\026H\035\362a\022\071\330v\303CTGk\020d\\\277\233\032`\277\003\346\270\b\003\302q\001",
ecount=32) at lstate.c:496
L = 0x8064040
#3 0x0804c351 in estream_write (state=0x8082ae8, buf=0xbffff180, count=32) at
stream.c:145
wr = <value optimized out>
#4 0x0804bead in entropy_pkt_handler (state=0x808b6b8,
buf=0xbffff180
"\325\064\301\026H\035\362a\022\071\330v\303CTGk\020d\\\277\233\032`\277\003\346\270\b\003\302q\001",
count=32) at connection.c:407
session_state = {h = {hashBitLen = 256, bCnt = 0, T = {8,
13763000461244235776}}, X = {17248407767138219025, 15353654178714778695,
14002893104654875124, 6618644036545962442}, b = '\000' <repeats 31
times>}
seq_num = 2387
randbuffer_encbytes =
"1u`\234\322\f<\r\020\362z\220\037_\357Do>\234\307˵\324&1\220%ۧ\306.",
<incomplete sequence \357>
loop = <value optimized out>
#5 0x0804b7d9 in econ_run (con_state=0x808b6b8) at connection.c:605
res = 32
data =
"\325\064\301\026H\035\362a\022\071\330v\303CTGk\020d\\\277\233\032`\277\003\346\270\b\003\302q\001\000\000\000\340J\006\b\377\377\377\377\004\213\375\267\360o=\216@@\006\b\330\361\377\277\062\307\373\267@@\006\b\316V\375\267\021\000\000\000\004\213\375\267@@\006\b\004\000\000\000\b\362\377\277\350\315\373\267@@\006\b\004\000\000\000\360o=\216h\264\b\bh\264\b\b\000\000\006\001\000\000\000\000\360o=\216"
#6 0x08049ed2 in ekey_fd_activity (fd=8, events=1, pw=0x808b6b8) at ekeyd.c:81
No locals.
#7 0x0804d1ca in ekeyfd_poll (timeout=-1) at fds.c:99
rdy = 2
fdcnt = 1
fdloop = 2
#8 0x08049b14 in main (argc=1, argv=0xbffff354) at ekeyd.c:279
res = 134751424
opt = <value optimized out>
configfile = 0x8064008 "/etc/entropykey/ekeyd.conf"
pidfile = 0x8064028 "/var/run/ekeyd.pid"
(gdb) quit
--
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