Comment 2 for bug 1041523

StacktraceTop:
 ?? () from /tmp/tmphC_ddL/usr/lib/compizconfig/backends/libkconfig4.so
 ccsCopyBackendInfoFromBackend (backend=backend@entry=0x0, interface=<optimized out>) at /build/buildd/compiz-0.9.8+bzr3319/compizconfig/libcompizconfig/src/main.c:936
 addBackendInfo (file=0x7fff940c3e20 "/usr/lib/compizconfig/backends/libkconfig4.so", bl=0x7fff940c4270) at /build/buildd/compiz-0.9.8+bzr3319/compizconfig/libcompizconfig/src/main.c:4002
 getBackendInfoFromDir (bl=bl@entry=0x7fff940c4270, path=0x19d66c0 "/usr/lib/compizconfig/backends", currentBackend=currentBackend@entry=0x7f7f902ba605 <Address 0x7f7f902ba605 out of bounds>) at /build/buildd/compiz-0.9.8+bzr3319/compizconfig/libcompizconfig/src/main.c:4070
 ccsGetExistingBackends (context=<optimized out>) at /build/buildd/compiz-0.9.8+bzr3319/compizconfig/libcompizconfig/src/main.c:4126