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Re: [PATCH v5 0/7] fuzz: improve crash case minimization
From: |
Alexander Bulekov |
Subject: |
Re: [PATCH v5 0/7] fuzz: improve crash case minimization |
Date: |
Thu, 7 Jan 2021 23:30:08 -0500 |
Hi Qiuhao,
Can you add my Reviewed-by: tags to the patches that I have reviewed?
Thanks
-Alex
On 210108 1044, Qiuhao Li wrote:
> 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, 2021/01/07
- [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 <=