logd: kill(0,0) issue
- Recognize pid=0 as special case (kernel or pre-init sourced)
and refrain from treating it in the general case.
Bug: 17526159
Change-Id: I74796043ac34753c6dd10018719ebc0bcd94e012
diff --git a/logd/LogStatistics.cpp b/logd/LogStatistics.cpp
index baf15fe..1305b0a 100644
--- a/logd/LogStatistics.cpp
+++ b/logd/LogStatistics.cpp
@@ -54,6 +54,9 @@
if (mGone || (pid == gone)) {
return true;
}
+ if (pid == 0) {
+ return false;
+ }
if (kill(pid, 0) && (errno != EPERM)) {
mGone = true;
return true;
@@ -92,7 +95,9 @@
// which debuggerd prints as a process is crashing.
char *PidStatistics::pidToName(pid_t pid) {
char *retval = NULL;
- if (pid != gone) {
+ if (pid == 0) { // special case from auditd for kernel
+ retval = strdup("logd.auditd");
+ } else if (pid != gone) {
char buffer[512];
snprintf(buffer, sizeof(buffer), "/proc/%u/cmdline", pid);
int fd = open(buffer, O_RDONLY);