During the testing the lket tests fails. FAIL: systemtap.samples/lket(lket-b2a runtime) Taking a closer look at what is going on the lket-b2a segfaults. (gdb) run -f stpd_cpu* Starting program: /home/wcohen/stap_testing_200705251949/install/bin/lket-b2a -f stpd_cpu* Program received signal SIGSEGV, Segmentation fault. 0x0804a8d6 in dump_data (header= {total_size = 16703, sys_size = 20026, microsecond = 7887296222732963401, tid_pid = 7286936824557233506, aggr = 3467835980590838386}, infp=0x8f6e658) at /home/wcohen/stap_testing_200705251949/src/runtime/lket/b2a/lket_b2a.c:649 649 fprintf(outfp, "EVT_NAME:%s ", events_des[_HOOKID_REGSYSEVT][grpid][hookid]->description); (gdb) print _HOOKID_REGSYSEVT $1 = 1 (gdb) print grpid $2 = 114 (gdb) print hookid $3 = 111 (gdb) print events_des [_HOOKID_REGSYSEVT][grpid ][hookid ] $4 = (event_desc *) 0x0 Looking through the lket_b2a.c code there doesn't seem to be any checking to make sure that the events_des elements are set up correctly. Thus, null pointers can be accessed in the manner above, causing the program to seg fault.
LKET has been retired.