diff options
| -rw-r--r-- | sys/arch/amd64/amd64/machdep.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/sys/arch/amd64/amd64/machdep.c b/sys/arch/amd64/amd64/machdep.c index 19dcf44..b6431b8 100644 --- a/sys/arch/amd64/amd64/machdep.c +++ b/sys/arch/amd64/amd64/machdep.c @@ -268,13 +268,16 @@ md_backtrace(void) while (1) { rip = rbp[1]; rbp = (uintptr_t *)rbp[0]; - name = backtrace_addr_to_name(rip, &off); - if (rbp == NULL) + /* + * This is not a valid value, get out + * of this loop!! + */ + if (rbp == NULL || rip == 0) { break; - if (name == NULL) - name = "???"; + } + name = backtrace_addr_to_name(rip, &off); snprintf(line, sizeof(line), "%p @ <%s+0x%x>\n", rip, name, off); cons_putstr(&g_root_scr, line, strlen(line)); } |