syz-fuzzer: repair leak checking #4728
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dvyukov
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May 23, 2024
Notify fuzzer from the manager when corpus triage has finished to start leak checking. Fixes google#4728
dvyukov
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May 23, 2024
Ipc gate slows down overall execution a lot. Without ipc gate I am getting ~20% more executions with debug kernel and ~100% more executions with a fast non-debug kernel. Replace ipc gate with explicit tracking of last executing programs per proc in syz-manager. Ipc gate was also used for leak checking, but leak checking seems to be still broken. At least in my local runs I am not getting any leaks even with the previous fix. So remove the gate completly for now. Taking into account that we are likely to rewrite this code in C++ soon, it makes little sense to create a special gate for leak checking only in Go. Update google#4728
dvyukov
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May 25, 2024
Notify fuzzer from the manager when corpus triage has finished to start leak checking. Fixes google#4728
dvyukov
added a commit
to dvyukov/syzkaller
that referenced
this issue
May 25, 2024
Ipc gate slows down overall execution a lot. Without ipc gate I am getting ~20% more executions with debug kernel and ~100% more executions with a fast non-debug kernel. Replace ipc gate with explicit tracking of last executing programs per proc in syz-manager. Ipc gate was also used for leak checking, but leak checking seems to be still broken. At least in my local runs I am not getting any leaks even with the previous fix. So remove the gate completly for now. Taking into account that we are likely to rewrite this code in C++ soon, it makes little sense to create a special gate for leak checking only in Go. Update google#4728
dvyukov
added a commit
to dvyukov/syzkaller
that referenced
this issue
May 25, 2024
Ipc gate slows down overall execution a lot. Without ipc gate I am getting ~20% more executions with debug kernel and ~100% more executions with a fast non-debug kernel. Replace ipc gate with explicit tracking of last executing programs per proc in syz-manager. Ipc gate was also used for leak checking, but leak checking seems to be still broken. At least in my local runs I am not getting any leaks even with the previous fix. So remove the gate completly for now. Taking into account that we are likely to rewrite this code in C++ soon, it makes little sense to create a special gate for leak checking only in Go. Update google#4728
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We stopped getting leak bugs: ci-upstream-gce-leak
Need to repair triagedCandidates logic in syz-fuzzer.
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