linux-kernel - Re: [RESEND BUG REPORT] System hung! Due to ftrace or KASAN?

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Date:   Tue, 29 Jan 2019 14:16:43 +0100
From:   Dmitry Vyukov <dvyukov@...gle.com>
To:     Andrew Morton <akpm@...ux-foundation.org>,
        Linux-MM <linux-mm@...ck.org>
Cc:     Zenghui Yu <zenghuiyu96@...il.com>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        Andy Lutomirski <luto@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        "H. Peter Anvin" <hpa@...or.com>,
        "the arch/x86 maintainers" <x86@...nel.org>,
        linux-trace-devel@...r.kernel.org,
        kasan-dev <kasan-dev@...glegroups.com>,
        "open list:KERNEL BUILD + fi..." <linux-kbuild@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Andrey Konovalov <andreyknvl@...gle.com>,
        Andrey Ryabinin <aryabinin@...tuozzo.com>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Christoph Lameter <cl@...ux.com>,
        Mark Rutland <mark.rutland@....com>,
        Will Deacon <will.deacon@....com>,
        Steven Rostedt <rostedt@...dmis.org>
Subject: Re: [RESEND BUG REPORT] System hung! Due to ftrace or KASAN?

On Tue, Jan 29, 2019 at 1:27 AM Andrew Morton <akpm@...ux-foundation.org> wrote:
>
> On Mon, 21 Jan 2019 10:36:25 +0100 Dmitry Vyukov <dvyukov@...gle.com> wrote:
>
> > > Thanks Dmitry! I'll try to test this commit tomorrow.
> > >
> > > BTW, I have bisect-ed and tested for this issue today. Finally it turned out
> > > that
> > >         bffa986c6f80e39d9903015fc7d0d99a66bbf559 is the first bad commit.
> > > So I'm wondering if anywhere need to be fixed in commit bffa986c6f80 ("kasan:
> > > move common generic and tag-based code to common.c").
> >
> > Thanks for bisecting. I think we have understanding of what happens
> > here and it's exactly this that needs to be fixed:
> > https://groups.google.com/d/msg/kasan-dev/g8A8PLKCyoE/vXnirYEnCAAJ
> > And this commit already fixes it.
>
> Has that been sent in my direction?  I can't find it.
>
> If sending it please add
>
> Tested-by: Dmitry Vyukov <dvyukov@...gle.com>
> Acked-by: Steven Rostedt (VMware) <rostedt@...dmis.org>


Yes, it's here (State: New):
https://lore.kernel.org/patchwork/patch/1024393/

This page says it was mailed to linux-mm mailing list too:
https://groups.google.com/forum/#!topic/kasan-dev/g8A8PLKCyoE

But I can't find linux-mm archives here:
http://vger.kernel.org/vger-lists.html

How can I add a tag to an existing change under review? Patchwork does
not show something like "add Tested-by: me tag" to me on the patch
page.

Patchwork shows Todo list on the main page with "Your todo list
contains patches that have been delegated to you". But I don't see an
option to delegate this patch to you either...