Re: [Qemu-devel] [PATCH RFC] qemu-error: introduce error_report_once

[Stefan Hajnoczi]

On Tue, May 15, 2018 at 05:13:56PM +0800, Peter Xu wrote:
> I stole the printk_once() macro.
> 
> I always wanted to be able to print some error directly if there is a
> buffer to dump, however we can't use error_report() really quite often
> when there can be any DDOS attack.  To avoid that, we can introduce a
> print-once function for it.

I like the idea.  It solves the problem of guest-triggerable error
messages that we should know about for troubleshooting but can't due to
DoS.

Stefan

signature.asc
Description: PGP signature