Re: [PATCH 3/4] fuzz: setting bits in operand of out/write to zero

2020-12-22 Thread Qiuhao Li
On Mon, 2020-12-21 at 15:35 -0500, Alexander Bulekov wrote: > On 201220 0256, Qiuhao Li wrote: > > Simplifying the crash cases by opportunistically setting bits in > > operands of > > out/write to zero may help to debug, since usually bit one means > > turn on > > or > > trigger a function while ze

Re: [PATCH 3/4] fuzz: setting bits in operand of out/write to zero

2020-12-21 Thread Alexander Bulekov
On 201220 0256, Qiuhao Li wrote: > Simplifying the crash cases by opportunistically setting bits in > operands of > out/write to zero may help to debug, since usually bit one means turn on > or > trigger a function while zero is the default turn-off setting. > > Tested Bug 1908062. Refined vs. Ori

[PATCH 3/4] fuzz: setting bits in operand of out/write to zero

2020-12-19 Thread Qiuhao Li
Simplifying the crash cases by opportunistically setting bits in operands of out/write to zero may help to debug, since usually bit one means turn on or trigger a function while zero is the default turn-off setting. Tested Bug 1908062. Refined vs. Original result: outl 0xcf8 0x881c