bacteriophage.blend error and backtrace

[nak@arch ~]$ blender
Read new prefs: /home/nak/.config/blender/2.69/config/userpref.blend
AL lib: (EE) UpdateDeviceParams: Failed to set 44100hz, got 48000hz instead
libpng warning: iCCP: known incorrect sRGB profile
read blend: /home/nak/Blender/bacteriophage.blend
Dependency cycle detected:
  LegsConstraint depends on Cylinder.001 through Parent.
  Cylinder.001 depends on LegsConstraint through Curve Modifier.

Writing: /tmp/bacteriophage.crash.txt
Segmentation fault (core dumped)

****************************** bacteriophage.crash.txt ******************************

# Blender 2.69 (sub 10), Commit date: 2014-01-30 20:42, Hash a7b1349

# backtrace
blender() [0x8c3773]
/usr/lib/libpthread.so.0(+0xf870) [0x7f172d157870]
blender() [0xea51cb]
blender(curve_deform_verts+0x13f) [0xea611f]
blender() [0xd5ae68]
blender() [0xe2027d]
blender() [0xe20be6]
blender(BKE_object_handle_update_ex+0x4f0) [0xee4610]
blender() [0xf2285e]
blender() [0xf23498]
blender(BKE_scene_update_tagged+0x7e) [0xf2370e]
blender(wm_event_do_notifiers+0x492) [0x8ca302]
blender(WM_main+0x20) [0x8c56c0]
blender(main+0xdaf) [0x8ae90f]
/usr/lib/libc.so.6(__libc_start_main+0xf5) [0x7f1728741b05]
blender() [0x8c3044]