Re: perf: fuzzer KASAN slab-out-of-bounds in snb_uncore_imc_event_del

From: Dmitry Vyukov
Date: Tue Nov 15 2016 - 08:57:14 EST


On Tue, Nov 15, 2016 at 2:52 PM, Vince Weaver <vincent.weaver@xxxxxxxxx> wrote:
> On Tue, 15 Nov 2016, Dmitry Vyukov wrote:
>
>> If you pipe the report through
>> https://github.com/google/sanitizers/blob/master/address-sanitizer/tools/kasan_symbolize.py
>> it will give you line numbers and inlined frames.
>
> is there any documentation for that program?

the source code...

> If I run the dump through
> it, it removes the timestamps and as far as I can see doesn't do anything
> else.

There are 4 flags:
https://github.com/google/sanitizers/blob/master/address-sanitizer/tools/kasan_symbolize.py#L315

The only important one is --linux which should point to a dir with
vmlinux. Default value is cwd.
Also do you have kernel built with debug info? No debug info, no lines.