[Openvpn-devel] openvpn crashing (both 2.0.9 and 2.1rc13)

[Nikola C. <ext...@li...>]

Hello,
we are experiencing openvpn crashes from time to time, usually few times a week.
It happens with both 2.0.9 and 2.1rc13.
I've enabled coredumps, and backtrace looks always the same:

Core was generated by `/usr/sbin/openvpn --daemon --writepid /var/run/openvpn/gw.lbox.cz-udp.pid --con'.
Program terminated with signal 11, Segmentation fault.
#0  0x00002ae049938c94 in lzo1x_1_15_compress () from /usr/lib64/liblzo.so.1
(gdb) bt
#0  0x00002ae049938c94 in lzo1x_1_15_compress () from /usr/lib64/liblzo.so.1
#1  0x0000000000418b26 in lzo_compress (buf=0x704190, work={capacity = 1918, offset = 0, len = 0, data = 0x695350 ""},
    lzowork=0x704130, frame=<value optimized out>) at lzo.c:167
#2  0x000000000040e0a5 in encrypt_sign (c=0x703840, comp_frag=<value optimized out>) at forward.c:420
#3  0x000000000040ebc9 in process_incoming_tun (c=0x703840) at forward.c:961
#4  0x0000000000428e75 in multi_process_incoming_tun (m=0x7fff6192ff20, mpp_flags=5) at multi.c:2196
#5  0x00000000004249f7 in tunnel_server_udp (top=0x7fff61930ae0) at mudp.c:178
#6  0x000000000042b0f3 in main (argc=8, argv=0x7fff61931698) at openvpn.c:213

It seems to be happening while using either TCP, or UDP, doesn't matter.
Is somebody experiencing similar problem? Could somebody help me to hunt it down?
I can provide coredumps and further testing if needed.
Server we're experiencing troubles is currently running 2.6.21 x86_64 kernel.
If somebody could help me, I'd greatly appreciate it.
thanks a lot in advance
with best regards
nik

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Nikola CIPRICH
LinuxBox.cz, s.r.o.
28. rijna 168, 709 01 Ostrava

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