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| author | Mark Salyzyn <salyzyn@google.com> | 2018-11-19 15:24:03 -0800 |
|---|---|---|
| committer | Mark Salyzyn <salyzyn@google.com> | 2018-11-19 15:26:20 -0800 |
| commit | b3418a22555c53c47d2366bab91f6af579504269 (patch) | |
| tree | 03319e6056c258e29ede64f66014d5be33f4d0bc /llkd | |
| parent | eb1213f1707bb6911fd4116d51e17f331abfaa90 (diff) | |
| download | system_core-b3418a22555c53c47d2366bab91f6af579504269.tar.gz system_core-b3418a22555c53c47d2366bab91f6af579504269.tar.bz2 system_core-b3418a22555c53c47d2366bab91f6af579504269.zip | |
llkd: do not crash kernel if llkd stops running
Today, assume llkd is not hardened enough to 100% guarantee that
lack of progress in inspection loops is a direct result of a
livelock condition affecting llkd itself. Log a fatal alarm to
make init restart llkd instead for the time being.
ToDo: develop trust in llkd regarding sigalarm causes.
Test: compile
Bug: 119781757
Change-Id: I668dc1773898da6c95aad7221724b16f1684b067
Diffstat (limited to 'llkd')
| -rw-r--r-- | llkd/libllkd.cpp | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/llkd/libllkd.cpp b/llkd/libllkd.cpp index 0827470af..427dacef1 100644 --- a/llkd/libllkd.cpp +++ b/llkd/libllkd.cpp @@ -555,7 +555,9 @@ void llkPanicKernel(bool dump, pid_t tid, const char* state, const std::string& } void llkAlarmHandler(int) { - llkPanicKernel(false, ::getpid(), "alarm"); + LOG(FATAL) << "alarm"; + // NOTREACHED + llkPanicKernel(true, ::getpid(), "alarm"); } milliseconds GetUintProperty(const std::string& key, milliseconds def) { |