linux-kernel - Re: [PATCH 2/3] mm/page_table_check: Do WARN_ON instead of BUG

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Sun, 11 Sep 2022 17:08:50 +0100
From:   Matthew Wilcox <willy@...radead.org>
To:     Pasha Tatashin <pasha.tatashin@...een.com>
Cc:     akpm@...ux-foundation.org, corbet@....net, linux-mm@...ck.org,
        linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org,
        rick.p.edgecombe@...el.com
Subject: Re: [PATCH 2/3] mm/page_table_check: Do WARN_ON instead of BUG_ON by
 default

On Sun, Sep 11, 2022 at 09:59:22AM +0000, Pasha Tatashin wrote:
> Currently, page_table_check when detects errors panics kernel. Instead,
> print a warning, and panic only when specifically requested via kernel
> parameter:
> 
> 	page_table_check=panic

Why are the page table checks so special that they deserve their own
command line parameter?  Why shouldn't this be controlled by the usual
panic_on_warn option?