13 Dec
2013
13 Dec
'13
12:06 a.m.
thanks! can't wait for the 4.0.5
Kelvin Chua
On Thu, Dec 12, 2013 at 10:16 PM, Daniel-Constantin Mierla <
miconda(a)gmail.com> wrote:
Hello,
I pushed a patch recently that will catch this situation even without
MEMDBG=1 at compile time. It was used with former default memory manager
f_malloc, but for what so ever reason was not on q_malloc.
The details provided are good to look further and avoid those double frees.
Cheers,
Daniel
On 12/12/13 11:33, Kelvin Chua wrote:
Hi Daniel,
if i turn on mem_safety=1
it doesn't crash.
here is the syslog
Dec 12 05:32:22 kelvin /usr/local/sbin/kamailio[30189]: : <core>
[mem/q_malloc.c:468]: qm_free(): BUG: qm_free: freeing already freed
pointer (0x7eff581e88b8), called from tm: h_table.c: free_cell(157), first
free tm: h_table.c: free_cell(157) - aborting
Dec 12 05:32:22 kelvin /usr/local/sbin/kamailio[30189]: : <core>
[mem/q_malloc.c:468]: qm_free(): BUG: qm_free: freeing already freed
pointer (0x7eff581e71d0), called from tm: h_table.c: free_cell(157), first
free tm: h_table.c: free_cell(157) - aborting
Dec 12 05:32:22 kelvin /usr/local/sbin/kamailio[30189]: : <core>
[mem/q_malloc.c:468]: qm_free(): BUG: qm_free: freeing already freed
pointer (0x7eff581f47f0), called from tm: h_table.c: free_cell(159), first
free tm: h_table.c: free_cell(159) - aborting
Dec 12 05:32:22 kelvin /usr/local/sbin/kamailio[30189]: : <core>
[mem/q_malloc.c:468]: qm_free(): BUG: qm_free: freeing already freed
pointer (0x7eff581e8790), called from dialog: dlg_handlers.c:
dlg_iuid_sfree(323), first free dialog: dlg_handlers.c: dlg_iuid_sfree(323)
- aborting
Dec 12 05:32:22 kelvin /usr/local/sbin/kamailio[30189]: : <core>
[mem/q_malloc.c:468]: qm_free(): BUG: qm_free: freeing already freed
pointer (0x7eff581e87f8), called from tm: h_table.c: free_cell(178), first
free tm: h_table.c: free_cell(178) - aborting
Dec 12 05:32:22 kelvin /usr/local/sbin/kamailio[30189]: : <core>
[mem/q_malloc.c:468]: qm_free(): BUG: qm_free: freeing already freed
pointer (0x7eff581e7148), called from tm: h_table.c: free_cell(178), first
free tm: h_table.c: free_cell(178) - aborting
Dec 12 05:32:22 kelvin /usr/local/sbin/kamailio[30189]: : <core>
[mem/q_malloc.c:468]: qm_free(): BUG: qm_free: freeing already freed
pointer (0x7eff581e5c98), called from dialog: dlg_handlers.c:
dlg_iuid_sfree(323), first free dialog: dlg_handlers.c: dlg_iuid_sfree(323)
- aborting
Dec 12 05:32:22 kelvin /usr/local/sbin/kamailio[30189]: : <core>
[mem/q_malloc.c:468]: qm_free(): BUG: qm_free: freeing already freed
pointer (0x7eff581e5b10), called from tm: h_table.c: free_cell(178), first
free tm: h_table.c: free_cell(178) - aborting
Dec 12 05:32:22 kelvin /usr/local/sbin/kamailio[30189]: : <core>
[mem/q_malloc.c:468]: qm_free(): BUG: qm_free: freeing already freed
pointer (0x7eff581e90b8), called from tm: h_table.c: free_cell(186), first
free tm: h_table.c: free_cell(186) - aborting
Dec 12 05:32:22 kelvin /usr/local/sbin/kamailio[30189]: : <core>
[mem/q_malloc.c:468]: qm_free(): BUG: qm_free: freeing already freed
pointer (0x7eff581e94a8), called from tm: h_table.c: free_cell(186), first
free tm: h_table.c: free_cell(186) - aborting
Dec 12 05:32:22 kelvin /usr/local/sbin/kamailio[30189]: : <core>
[mem/q_malloc.c:468]: qm_free(): BUG: qm_free: freeing already freed
pointer (0x7eff581e9898), called from tm: h_table.c: free_cell(186), first
free tm: h_table.c: free_cell(186) - aborting
Dec 12 05:32:22 kelvin /usr/local/sbin/kamailio[30189]: : <core>
[mem/q_malloc.c:468]: qm_free(): BUG: qm_free: freeing already freed
pointer (0x7eff581e9c80), called from tm: h_table.c: free_cell(186), first
free tm: h_table.c: free_cell(186) - aborting
Dec 12 05:32:22 kelvin /usr/local/sbin/kamailio[30189]: : <core>
[mem/q_malloc.c:468]: qm_free(): BUG: qm_free: freeing already freed
pointer (0x7eff581f4170), called from tm: h_table.c: free_cell(189), first
free tm: h_table.c: free_cell(189) - aborting
Dec 12 05:32:22 kelvin /usr/local/sbin/kamailio[30189]: : <core>
[mem/q_malloc.c:468]: qm_free(): BUG: qm_free: freeing already freed
pointer (0x7eff581e5de0), called from tm: h_table.c: free_cell(244), first
free tm: h_table.c: free_cell(244) - aborting
..cut
Dec 12 05:32:23 kelvin /usr/local/sbin/kamailio[30190]: : <core>
[mem/q_malloc.c:468]: qm_free(): BUG: qm_free: freeing already freed
pointer (0x7eff581ee528), called from tm: h_table.c: free_cell(157), first
free tm: h_table.c: free_cell(157) - aborting
Dec 12 05:32:23 kelvin /usr/local/sbin/kamailio[30190]: : <core>
[mem/q_malloc.c:468]: qm_free(): BUG: qm_free: freeing already freed
pointer (0x7eff581ecae0), called from tm: h_table.c: free_cell(157), first
free tm: h_table.c: free_cell(157) - aborting
Dec 12 05:32:23 kelvin /usr/local/sbin/kamailio[30190]: : <core>
[mem/q_malloc.c:468]: qm_free(): BUG: qm_free: freeing already freed
pointer (0x7eff581ee238), called from tm: h_table.c: free_cell(159), first
free tm: h_table.c: free_cell(159) - aborting
Dec 12 05:32:23 kelvin /usr/local/sbin/kamailio[30190]: : <core>
[mem/q_malloc.c:468]: qm_free(): BUG: qm_free: freeing already freed
pointer (0x7eff581e8790), called from dialog: dlg_handlers.c:
dlg_iuid_sfree(323), first free dialog: dlg_handlers.c: dlg_iuid_sfree(323)
- aborting
Dec 12 05:32:23 kelvin /usr/local/sbin/kamailio[30190]: : <core>
[mem/q_malloc.c:468]: qm_free(): BUG: qm_free: freeing already freed
pointer (0x7eff581e7148), called from tm: h_table.c: free_cell(178), first
free tm: h_table.c: free_cell(178) - aborting
Dec 12 05:32:23 kelvin /usr/local/sbin/kamailio[30190]: : <core>
[mem/q_malloc.c:468]: qm_free(): BUG: qm_free: freeing already freed
pointer (0x7eff581eb4c8), called from tm: h_table.c: free_cell(178), first
free tm: h_table.c: free_cell(178) - aborting
Dec 12 05:32:23 kelvin /usr/local/sbin/kamailio[30190]: : <core>
[mem/q_malloc.c:468]: qm_free(): BUG: qm_free: freeing already freed
pointer (0x7eff581eb630), called from dialog: dlg_handlers.c:
dlg_iuid_sfree(323), first free dialog: dlg_handlers.c: dlg_iuid_sfree(323)
- aborting
Dec 12 05:32:23 kelvin /usr/local/sbin/kamailio[30190]: : <core>
[mem/q_malloc.c:468]: qm_free(): BUG: qm_free: freeing already freed
pointer (0x7eff581eb6d0), called from tm: h_table.c: free_cell(178), first
free tm: h_table.c: free_cell(178) - aborting
Dec 12 05:32:23 kelvin /usr/local/sbin/kamailio[30190]: : <core>
[mem/q_malloc.c:468]: qm_free(): BUG: qm_free: freeing already freed
pointer (0x7eff581eec48), called from tm: h_table.c: free_cell(186), first
free tm: h_table.c: free_cell(186) - aborting
Dec 12 05:32:23 kelvin /usr/local/sbin/kamailio[30190]: : <core>
[mem/q_malloc.c:468]: qm_free(): BUG: qm_free: freeing already freed
pointer (0x7eff581e88b8), called from tm: h_table.c: free_cell(186), first
free tm: h_table.c: free_cell(186) - aborting
Dec 12 05:32:23 kelvin /usr/local/sbin/kamailio[30190]: : <core>
[mem/q_malloc.c:468]: qm_free(): BUG: qm_free: freeing already freed
pointer (0x7eff581f4c18), called from tm: h_table.c: free_cell(189), first
free tm: h_table.c: free_cell(189) - aborting
Dec 12 05:32:23 kelvin /usr/local/sbin/kamailio[30190]: : <core>
[mem/q_malloc.c:468]: qm_free(): BUG: qm_free: freeing already freed
pointer (0x7eff581eb778), called from tm: h_table.c: free_cell(244), first
free tm: h_table.c: free_cell(244) - aborting
Kelvin Chua
On Tue, Dec 10, 2013 at 7:28 AM, Daniel-Constantin Mierla <
miconda(a)gmail.com> wrote:
This is for an ACK and slightly different case
-- it can happen only
with MEMDBG=1 -- I will look over it as well.
Can you run another test with:
mem_safety=1
?
Still keeping MEMDBG=1
Daniel
On 09/12/13 19:22, Kelvin Chua wrote:
#0 0x00007fbf3aee9425 in raise () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#1 0x00007fbf3aeecb8b in abort () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#2 0x000000000054d710 in qm_free (qm=0x7fbf30414000, p=0x7fbf3088a9a8,
file=0x7fbf38b85cb5 "tm: h_table.c",
func=0x7fbf38b85e58 "free_cell", line=157) at mem/q_malloc.c:470
f = 0x7fbf3088a978
size = 0
next = 0x7fbf30449518
prev = 0x7fbf3088c660
__FUNCTION__ = "qm_free"
#3 0x00007fbf38b19b10 in free_cell (dead_cell=0x7fbf30887de8) at
h_table.c:157
b = 0x7fff7da2d4b0 " ֢}\377\177"
i = 1
rpl = 0x7fbf30887de8
tt = 0x7fff7da2d9c0
foo = 0x22b7da2d3d0
cbs = 0x0
cbs_tmp = 0x0
__FUNCTION__ = "free_cell"
#4 0x00007fbf38b4a486 in t_unref (p_msg=0x7fbf3abbf368) at
t_lookup.c:1574
kr = 12
__FUNCTION__ = "t_unref"
#5 0x00007fbf38b4e60b in w_t_unref (foo=0x7fbf3abbf368,
flags=2147483649, bar=0x0) at tm.c:725
No locals.
#6 0x00000000004db5bb in exec_post_script_cb (msg=0x7fbf3abbf368,
type=REQUEST_CB_TYPE) at script_cb.c:195
cb = 0x7fbf3abf4fa0
flags = 2147483649
#7 0x00000000004a9cd8 in receive_msg (
buf=0x9263c0 "ACK sip:18X88X441X1@2X8.1X1.3X.2X SIP/2.0\r\nVia:
SIP/2.0/UDP 125.60.156.243:17218;rport;branch=z9hG4bKogunmjtk\r\nMax-Forwards:
16\r\nProxy-Authorization: Digest
username=\"kelvin\",realm=\"2X8.1X1.3X.2X\",non".
.., len=555, rcv_info=0x7fff7da2d680) at receive.c:227
msg = 0x7fbf3abbf368
ctx = {rec_lev = -1, run_flags = 0, last_retcode = 984293392,
jmp_env = {{__jmpbuf = {140459304019208,
1204527218, 8881072, 0, 0, 0, 0, 140459312289652},
__mask_was_saved = 5, __saved_mask = {__val = {
0, 140459304039824, 1, 140459125283080, 1204527218,
2107823648, 1024, 6402790880,
140459125283080, 140735301211616, 5493883, 4087102589,
140459125283080, 16963, 140459125283080,
140735301211772}}}}}
ret = 0
inb = {
s = 0x9263c0 "ACK sip:18X88X441X1@2X8.1X1.3X.2XSIP/2.0\r\nVia: SIP/2.0/UDP
125.60.156.243:17218;rport;branch=z9hG4bKogunmjtk\r\nMax-Forwards:
16\r\nProxy-Authorization: Digest
username=\"kelvin\",realm=\"2X8.1X1.3X.2X\",non"..., len = 555}
__FUNCTION__ = "receive_msg"
#8 0x000000000054148b in udp_rcv_loop () at udp_server.c:557
len = 555
buf = "ACK sip:18X88X441X1@2X8.1X1.3X.2X SIP/2.0\r\nVia:
SIP/2.0/UDP 125.60.156.243:17218;rport;branch=z9hG4bKogunmjtk\r\nMax-Forwards:
16\r\nProxy-Authorization: Digest
username=\"kelvin\",realm=\"2X8.1X1.3X.2X\",non"...
tmp = 0x7fff7da2d690 "\020ע}\377\177"
from = 0x7fbf3abc4df0
fromlen = 16
ri = {src_ip = {af = 2, len = 4, u = {addrl = {8382069885,
140735301211920}, addr32 = {4087102589, 1,
2107823888, 32767}, addr16 = {15485, 62364, 1, 0, 55056,
32162, 32767, 0},
addr = "}<\234\363\001\000\000\000\020ע}\377\177\000"}},
dst_ip = {af = 2, len = 4, u = {addrl = {
489123792, 0}, addr32 = {489123792, 0, 0, 0}, addr16 =
{28624, 7463, 0, 0, 0, 0, 0, 0},
addr = "\320o'\035", '\000' <repeats 11
times>}}, src_port
= 17218, dst_port = 5060,
proto_reserved1 = 0, proto_reserved2 = 0, src_su = {s =
{sa_family = 2,
sa_data = "CB}<\234\363\000\000\000\000\000\000\000"}, sin
= {sin_family = 2, sin_port = 16963,
sin_addr = {s_addr = 4087102589}, sin_zero =
"\000\000\000\000\000\000\000"}, sin6 = {
sin6_family = 2, sin6_port = 16963, sin6_flowinfo =
4087102589, sin6_addr = {__in6_u = {
__u6_addr8 = '\000' <repeats 15 times>, __u6_addr16 =
{0, 0, 0, 0, 0, 0, 0, 0}, __u6_addr32 = {
0, 0, 0, 0}}}, sin6_scope_id = 0}}, bind_address =
0x7fbf3aaf03d8, proto = 1 '\001'}
__FUNCTION__ = "udp_rcv_loop"
#9 0x000000000046ce9c in main_loop () at main.c:1638
i = 0
pid = 0
si = 0x7fbf3aaf03d8
si_desc = "udp receiver child=0
sock=2X8.1X1.3X.2X:5060\000\364\357:\000\\,5\277\177\000\000r\240\313G\000\000\000\000\000DA\000\000\000\000\000\300٢}\377\177",
'\000' <repeats 18 times>"\360,
ע}\377\177\000\000\232\373K\000\000\000\000\000\020آ}\377\177\000\000\240Ó\000\000\000\000"
nrprocs = 4
__FUNCTION__ = "main_loop"
#10 0x000000000046fec0 in main (argc=15, argv=0x7fff7da2d9c8) at
main.c:2566
cfg_stream = 0xfd6010
c = -1
r = 0
tmp = 0x7fff7da2df48 ""
tmp_len = 0
port = 4274515
proto = 0
options = 0x5e5c10
":f:cm:M:dVIhEeb:l:L:n:vKrRDTN:W:w:t:u:g:P:G:SQ:O:a:A:"
ret = -1
seed = 3558558127
rfd = 4
debug_save = 0
debug_flag = 0
dont_fork_cnt = 0
n_lst = 0x5d0670
p = 0xc2 <Address 0xc2 out of bounds>
__FUNCTION__ = "main"
...cut
Kelvin Chua
On Tue, Dec 10, 2013 at 1:04 AM, Daniel-Constantin Mierla <
miconda(a)gmail.com> wrote:
--
Daniel-Constantin Mierla - http://www.asipto.comhttp://twitter.com/#!/miconda -
http://www.linkedin.com/in/miconda
It is a different place now, can you give the bt
full output?
Cheers,
Daniel
On 09/12/13 17:18, Kelvin Chua wrote:
i didn's set any global parameter, just the defaults.
yes, i can reproduce it consistently, i just send an INVITE and CANCEL
while kamailio is trying the destinations. (serial forks to non-existent IP)
after i send the CANCEL, kamailio will crash.
below is the MEMDBG=1 syslog:
Dec 9 11:12:14 kelvin /usr/local/sbin/kamailio[22191]: WARNING: tm
[t_lookup.c:1564]: t_unref(): WARNING: script writer didn't release
transaction
Dec 9 11:12:14 kelvin /usr/local/sbin/kamailio[22189]: : <core>
[mem/q_malloc.c:468]: qm_free(): BUG: qm_free: freeing already freed
pointer (0x7f35a60e01e0), called from tm: h_table.c: free_cell(157), first
free tm: h_table.c: free_cell(157) - aborting
Dec 9 11:12:14 kelvin /usr/local/sbin/kamailio[22209]: : <core>
[pass_fd.c:293]: receive_fd(): ERROR: receive_fd: EOF on 13
Dec 9 11:12:14 kelvin /usr/local/sbin/kamailio[22186]: ALERT: <core>
[main.c:788]: handle_sigs(): child process 22189 exited by a signal 6
Dec 9 11:12:14 kelvin /usr/local/sbin/kamailio[22186]: ALERT: <core>
[main.c:791]: handle_sigs(): core was generated
Dec 9 11:12:14 kelvin /usr/local/sbin/kamailio[22186]: ERROR: ctl
[ctl.c:379]: mod_destroy(): ERROR: ctl: could not delete unix socket
/tmp/kamailio_ctl: Operation not permitted (1)
Dec 9 11:12:14 kelvin /usr/local/sbin/kamailio[22186]: : <core>
[mem/q_malloc.c:468]: qm_free(): BUG: qm_free: freeing already freed
pointer (0x7f35a60e01e0), called from tm: h_table.c: free_cell(157), first
free tm: h_table.c: free_cell(157)
Kelvin Chua
On Mon, Dec 9, 2013 at 11:54 PM, Daniel-Constantin Mierla <
miconda(a)gmail.com> wrote:
--
Daniel-Constantin Mierla - http://www.asipto.comhttp://twitter.com/#!/miconda -
http://www.linkedin.com/in/miconda
Can you compile with MEMDBG=1 in Makefile.defs
and try again? Might be
a memory overwritten issues somewhere. Look in the syslog for memory
related message.
Few more details needed ... do you have memjoin global parameter set?
Is the situation reproducible, or it happens sporadically?
Cheers,
Daniel
On 09/12/13 16:45, Kelvin Chua wrote:
tried latest branch 4.0, also segfault
similar backtrace
Kelvin Chua
On Mon, Dec 9, 2013 at 7:13 PM, Daniel-Constantin Mierla <
miconda(a)gmail.com> wrote:
> Hello,
>
> can you try latest branch 4.0? There were some fixes for similar case.
> Soon will be a 4.0.5 release.
>
> Cheers,
> Daniel
>
>
> On 09/12/13 10:35, Kelvin Chua wrote:
>
> following is backtrace:
>
> #0 qm_detach_free (frag=0x7f91a4656170, qm=<optimized out>) at
> mem/q_malloc.c:269
> prev = 0x7f91a4656170
> next = 0x0
> #1 qm_malloc (qm=0x7f91a429b000, size=3840) at mem/q_malloc.c:386
> f = 0x7f91a4656170
> hash = -1536859792
> #2 0x000000000050977f in shm_malloc (size=3832) at
> parser/../mem/shm_mem.h:262
> p = <optimized out>
> #3 sip_msg_shm_clone (org_msg=0x7f91ae9d7630,
> sip_msg_len=0x7fff56a2dde0, clone_lumps=0) at sip_msg_clone.c:502
> len = 3832
> hdr = <optimized out>
> new_hdr = <optimized out>
> last_hdr = <optimized out>
> via = <optimized out>
> prm = <optimized out>
> to_prm = <optimized out>
> new_to_prm = <optimized out>
> new_msg = <optimized out>
> p = <optimized out>
> __FUNCTION__ = "sip_msg_shm_clone"
> #4 0x00007f91ac989062 in build_cell (p_msg=0x7f91ae9d7630) at
> h_table.c:372
> new_cell = 0x7f91a4656180
> sip_msg_len = <optimized out>
> old = <optimized out>
> cbs = <optimized out>
> cbs_tmp = <optimized out>
> xold = <optimized out>
> #5 0x00007f91ac9b5fc6 in new_t (p_msg=0x7f91ae9d7630) at
> t_lookup.c:1357
> new_cell = <optimized out>
> #6 t_newtran (p_msg=0x7f91ae9d7630) at t_lookup.c:1497
> lret = <optimized out>
> my_err = <optimized out>
> canceled = <optimized out>
> __FUNCTION__ = "t_newtran"
> #7 0x00007f91ac9a99e0 in t_forward_cancel (p_msg=0x7f91ae9d7630,
> proxy=0x0, proto=0, tran=0x7fff56a2e2c0) at t_fwd.c:1607
> t_invite = <optimized out>
> t = 0x0
> ret = <optimized out>
> new_tran = <optimized out>
> dst = {send_sock = 0x63371f, to = {s = {sa_family = 54224,
> sa_data = "\003\255\221\177\000\000\020\300\220\256\221\177\000"}, sin =
> {sin_family = 54224,
> sin_port = 44291, sin_addr = {s_addr = 32657}, sin_zero
> = "\020\300\220\256\221\177\000"}, sin6 = {sin6_family = 54224, sin6_port
=
> 44291,
> sin6_flowinfo = 32657, sin6_addr = {__in6_u =
> {__u6_addr8 = "\020\300\220\256\221\177\000\000\070\261W\000\000\000\000",
> __u6_addr16 = {49168, 44688,
> 32657, 0, 45368, 87, 0, 0}, __u6_addr32 =
> {2928721936, 32657, 5747000, 0}}}, sin6_scope_id = 0}}, id = 0, proto = 96
> '`', send_flags = {
> f = 225 '\341', blst_imask = 162 '\242'}}
> host = {s = 0x0, len = 0}
> port = <optimized out>
> __FUNCTION__ = "t_forward_cancel"
> #8 0x00007f91ac99ae15 in t_relay_to (p_msg=0x7f91ae9d7630, proxy=0x0,
> proto=0, replicate=0) at t_funcs.c:264
> ret = 0
> new_tran = <optimized out>
> t = <optimized out>
> dst = {send_sock = 0x0, to = {s = {sa_family = 0, sa_data =
> '\000' <repeats 13 times>}, sin = {sin_family = 0, sin_port = 0,
sin_addr =
> {s_addr = 0},
> sin_zero = "\000\000\000\000\000\000\000"}, sin6 =
> {sin6_family = 0, sin6_port = 0, sin6_flowinfo = 0, sin6_addr = {__in6_u = {
> __u6_addr8 = '\000' <repeats 15 times>, __u6_addr16
> = {0, 0, 0, 0, 0, 0, 0, 0}, __u6_addr32 = {0, 0, 0, 0}}}, sin6_scope_id =
> 0}}, id = 0,
> proto = 64 '@', send_flags = {f = 243 '\363', blst_imask =
> 162 '\242'}}
> port = <optimized out>
> host = {s = 0x7fff56a2eab8 "0[*\244\221\177", len =
> -1398876638}
> __FUNCTION__ = "t_relay_to"
>
>
>
> Kelvin Chua
>
>
> _______________________________________________
> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing
listsr-users@lists.sip-router.orghttp://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
>
>
> --
> Daniel-Constantin Mierla - http://www.asipto.comhttp://twitter.com/#!/miconda -
http://www.linkedin.com/in/miconda
>
>
> _______________________________________________
> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
> sr-users(a)lists.sip-router.org
> http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
>
>
--
Daniel-Constantin Mierla - http://www.asipto.comhttp://twitter.com/#!/miconda -
http://www.linkedin.com/in/miconda
--
Daniel-Constantin Mierla - http://www.asipto.comhttp://twitter.com/#!/miconda -
http://www.linkedin.com/in/miconda