# Re: \[PATCH v3 0/3\] Add error\_report\_end tracepoint to KFENCE and KASAN

- From: Petr Mladek \<pmladek@suse.com\>
- Date: 2021-01-22 08:32:37 
- List: linux-api
- Page: https://ratatoskr.run/linux-api/2021/01/6505831
- Thread: https://ratatoskr.run/linux-mm/2021/01/6505817/t.md

```text
On Thu 2021-01-21 14:19:12, Alexander Potapenko wrote:
> This patchset adds a tracepoint, error_repor_end, that is to be used by
> KFENCE, KASAN, and potentially other bug detection tools, when they
> print an error report.
> One of the possible use cases is userspace collection of kernel error
> reports: interested parties can subscribe to the tracing event via
> tracefs, and get notified when an error report occurs.
> 
> v3:
>  - dropped the sysfs interface for log collection
>  - dropped error_report_start tracepoint

Just for record. This approach looks reasonable to me.
Thanks for removing the sysfs interface. It would have been
a potential can of worms.

I do not feel eligible to add any tag. I am neither familiar
with the tracepoint nor the KFENCE or KASAN code.

Best Regards,
Petr
```