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[PATCH v5 0/7] fuzz: improve crash case minimization
From: |
Qiuhao Li |
Subject: |
[PATCH v5 0/7] fuzz: improve crash case minimization |
Date: |
Fri, 8 Jan 2021 10:44:37 +0800 |
Extend and refine the crash case minimization process.
Test input:
Bug 1909261 full_reproducer
6500 QTest instructions (write mostly)
Refined (-M1 minimization level) vs. Original version:
real 38m31.942s <-- real 532m57.192s
user 28m18.188s <-- user 89m0.536s
sys 12m42.239s <-- sys 50m33.074s
2558 instructions <-- 2846 instructions
Test Enviroment:
i7-8550U, 16GB LPDDR3, SSD
Ubuntu 20.04.1 5.4.0-58-generic x86_64
Python 3.8.5
v5:
Fix: send SIGKILL on timeout
Fix: rename minimization functions
v4:
Fix: messy diff in [PATCH v3 4/7]
v3:
Fix: checkpatch.pl errors
v2:
New: [PATCH v2 1/7]
New: [PATCH v2 2/7]
New: [PATCH v2 4/7]
New: [PATCH v2 6/7]
New: [PATCH v2 7/7]
Fix: [PATCH 2/4] split using binary approach
Fix: [PATCH 3/4] typo in comments
Discard: [PATCH 1/4] the hardcoded regex match for crash detection
Discard: [PATCH 4/4] the delaying minimizer
Thanks for the suggestions from:
Alexander Bulekov
Qiuhao Li (7):
fuzz: accelerate non-crash detection
fuzz: double the IOs to remove for every loop
fuzz: split write operand using binary approach
fuzz: remove IO commands iteratively
fuzz: set bits in operand of write/out to zero
fuzz: add minimization options
fuzz: heuristic split write based on past IOs
scripts/oss-fuzz/minimize_qtest_trace.py | 257 ++++++++++++++++++-----
1 file changed, 210 insertions(+), 47 deletions(-)
--
2.25.1
- [PATCH v5 0/7] fuzz: improve crash case minimization,
Qiuhao Li <=
- [PATCH v5 1/7] fuzz: accelerate non-crash detection, Qiuhao Li, 2021/01/07
- [PATCH v5 2/7] fuzz: double the IOs to remove for every loop, Qiuhao Li, 2021/01/07
- [PATCH v5 3/7] fuzz: split write operand using binary approach, Qiuhao Li, 2021/01/07
- [PATCH v5 4/7] fuzz: remove IO commands iteratively, Qiuhao Li, 2021/01/07
- [PATCH v5 5/7] fuzz: set bits in operand of write/out to zero, Qiuhao Li, 2021/01/07
- [PATCH v5 6/7] fuzz: add minimization options, Qiuhao Li, 2021/01/07
- [PATCH v5 7/7] fuzz: heuristic split write based on past IOs, Qiuhao Li, 2021/01/07
- Re: [PATCH v5 0/7] fuzz: improve crash case minimization, Alexander Bulekov, 2021/01/07