Should be easy to fix [dstaesse@heteropoda build]$ sudo irmd --stdout ==05794== irmd(II): Ouroboros IPC Resource Manager daemon started... ==05794== irmd(II): Created IPCP 5867. ==05867== ipcpd-local(II): Bootstrapped local IPCP with pid 5867. ==05867== ipcpd/ipcp(DB): Locked thread 140062535595776 to CPU 7/8. ==05794== irmd(II): Bootstrapped IPCP 5867 in layer e02. ==05794== irmd(II): Created IPCP 5888. ==05888== ipcpd-local(II): Bootstrapped local IPCP with pid 5888. ==05794== irmd(II): Bootstrapped IPCP 5888 in layer e01. ==05888== ipcpd/ipcp(DB): Locked thread 139748512249600 to CPU 7/8. ==05794== irmd(II): Created IPCP 5902. ==05794== irmd(II): Bound process 5902 to name n01.a. ==05794== irmd(II): Bound process 5902 to name n01. ==05902== unicast-ipcp(DB): IPCP got address 1296627616. ==05902== dt(EE): Failed to create a PFF. AddressSanitizer:DEADLYSIGNAL ================================================================= ==5902==ERROR: AddressSanitizer: SEGV on unknown address 0x0000000002d0 (pc 0x7f7063c7a614 bp 0x7f705d5e4b90 sp 0x7f705d5e4b68 T4) ==5902==The signal is caused by a READ memory access. ==5902==Hint: address points to the zero page. #0 0x7f7063c7a613 in pthread_cancel (/usr/lib/libpthread.so.0+0x11613) #1 0x5564731ef666 in link_state_fini /home/dstaesse/git/ouroboros/src/ipcpd/unicast/pol/link_state.c:1014 #2 0x5564731e72ec in routing_fini /home/dstaesse/git/ouroboros/src/ipcpd/unicast/routing.c:72 #3 0x5564731db65a in dt_init /home/dstaesse/git/ouroboros/src/ipcpd/unicast/dt.c:729 #4 0x5564731e4d3a in initialize_components /home/dstaesse/git/ouroboros/src/ipcpd/unicast/main.c:84 #5 0x5564731e5db1 in unicast_ipcp_bootstrap /home/dstaesse/git/ouroboros/src/ipcpd/unicast/main.c:249 #6 0x5564731f9000 in mainloop /home/dstaesse/git/ouroboros/src/ipcpd/ipcp.c:297 #7 0x7f7063c7246e in start_thread (/usr/lib/libpthread.so.0+0x946e) #8 0x7f70636d73d2 in clone (/usr/lib/libc.so.6+0xff3d2) AddressSanitizer can not provide additional info. SUMMARY: AddressSanitizer: SEGV (/usr/lib/libpthread.so.0+0x11613) in pthread_cancel Thread T4 created by T2 here: #0 0x7f7063e30377 in __interceptor_pthread_create /build/gcc/src/gcc/libsanitizer/asan/asan_interceptors.cc:208 #1 0x7f7063cbb405 in tpmgr /home/dstaesse/git/ouroboros/src/lib/tpm.c:140 #2 0x7f7063c7246e in start_thread (/usr/lib/libpthread.so.0+0x946e) Thread T2 created by T0 here: #0 0x7f7063e30377 in __interceptor_pthread_create /build/gcc/src/gcc/libsanitizer/asan/asan_interceptors.cc:208 #1 0x7f7063cbb995 in tpm_start /home/dstaesse/git/ouroboros/src/lib/tpm.c:215 #2 0x5564731fd3c8 in ipcp_boot /home/dstaesse/git/ouroboros/src/ipcpd/ipcp.c:697 #3 0x5564731e6684 in main /home/dstaesse/git/ouroboros/src/ipcpd/unicast/main.c:331 #4 0x7f70635ff022 in __libc_start_main (/usr/lib/libc.so.6+0x27022) ==5902==ABORTING ==05794== irmd(EE): Could not bootstrap IPCP. ==05794== irmd(II): All names matching n01.a unbound for 5902. ==05794== irmd(II): All names matching n01 unbound for 5902. ==05794== irmd(II): IRMd shutting down... ==05867== ipcpd/ipcp(II): IPCP 5867 shutting down. ==05867== ipcpd/ipcp(II): IPCP 5867 out. ==05888== ipcpd/ipcp(II): IPCP 5888 shutting down. ==05888== ipcpd/ipcp(II): IPCP 5888 out. ==05794== irmd(DB): Failed to remove /tmp/ouroboros ==05794== irmd(II): Bye.