Symbol: P_UPF_TRUNCMSG
usr/src/uts/common/exec/elf/elf_notes.c
671
if ((p->p_upanicflag & P_UPF_TRUNCMSG) != 0) {
usr/src/uts/common/os/upanic.c
65
upflag |= P_UPF_TRUNCMSG;