linux-kernel - Re: [PATCH 1/2] x86/mm: Get rid of VM_BUG_ON in switch_tlb_irqs

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]

Message-ID: <CALCETrWt=wKMM-g6VZTQac0OhfK_=59cS7Lumhj7MpCAs_jGcQ@mail.gmail.com>
Date:   Thu, 7 Sep 2017 22:09:36 -0700
From:   Andy Lutomirski <luto@...nel.org>
To:     Andy Lutomirski <luto@...nel.org>
Cc:     X86 ML <x86@...nel.org>, Borislav Petkov <bpetkov@...e.de>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Jiri Kosina <jikos@...nel.org>
Subject: Re: [PATCH 1/2] x86/mm: Get rid of VM_BUG_ON in switch_tlb_irqs_off()

On Thu, Sep 7, 2017 at 10:06 PM, Andy Lutomirski <luto@...nel.org> wrote:
> If we hit the VM_BUG_ON(), we're detecting a genuinely bad situation,
> but we're very unlikely to get a useful call trace.

Sigh, typo below.  Ingo, if you apply this version, can you fix it?

> +                * a global flush to minimize the change of corruption.

chance of corruption.