From: Andy Lutomirski <luto@kernel.org>
To: "Kirill A. Shutemov" <kirill@shutemov.name>
Cc: Andy Lutomirski <luto@kernel.org>,
Dmitry Vyukov <dvyukov@google.com>,
Andrey Ryabinin <aryabinin@virtuozzo.com>,
Alexander Potapenko <glider@google.com>,
"Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>,
Linus Torvalds <torvalds@linux-foundation.org>,
Andrew Morton <akpm@linux-foundation.org>,
"x86@kernel.org" <x86@kernel.org>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, "H. Peter Anvin" <hpa@zytor.com>,
Andi Kleen <ak@linux.intel.com>,
Dave Hansen <dave.hansen@intel.com>,
linux-arch <linux-arch@vger.kernel.org>,
"linux-mm@kvack.org" <linux-mm@kvack.org>,
LKML <linux-kernel@vger.kernel.org>,
kasan-dev <kasan-dev@googlegroups.com>
Subject: Re: KASAN vs. boot-time switching between 4- and 5-level paging
Date: Mon, 10 Jul 2017 17:30:38 -0700 [thread overview]
Message-ID: <CALCETrW6pWzpdf1MVx_ytaYYuVGBsF7R+JowEsKqd3i=vCwJ_w@mail.gmail.com> (raw)
In-Reply-To: <20170710212403.7ycczkhhki3vrgac@node.shutemov.name>
On Mon, Jul 10, 2017 at 2:24 PM, Kirill A. Shutemov
<kirill@shutemov.name> wrote:
> On Mon, Jul 10, 2017 at 01:07:13PM -0700, Andy Lutomirski wrote:
>> Can you give the disassembly of the backtrace lines? Blaming the
>> .endr doesn't make much sense to me.
>
> I don't have backtrace. It's before printk() is functional. I only see
> triple fault and reboot.
>
> I had to rely on qemu tracing and gdb.
Can you ask GDB or objtool to disassemble around those addresses? Can
you also attach the big dump that QEMU throws out that shows register
state? In particular, CR2, CR3, and CR4 could be useful.
--Andy
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org. For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
next prev parent reply other threads:[~2017-07-11 0:31 UTC|newest]
Thread overview: 54+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-05-25 20:33 [PATCHv1, RFC 0/8] Boot-time " Kirill A. Shutemov
2017-05-25 20:33 ` [PATCHv1, RFC 1/8] x86/boot/compressed/64: Detect and handle 5-level paging at boot-time Kirill A. Shutemov
2017-05-25 20:33 ` [PATCHv1, RFC 2/8] x86/mm: Make virtual memory layout movable for CONFIG_X86_5LEVEL Kirill A. Shutemov
2017-05-25 20:33 ` [PATCHv1, RFC 3/8] x86/mm: Make PGDIR_SHIFT and PTRS_PER_P4D variable Kirill A. Shutemov
2017-05-25 20:33 ` [PATCHv1, RFC 4/8] x86/mm: Handle boot-time paging mode switching at early boot Kirill A. Shutemov
2017-05-25 20:33 ` [PATCHv1, RFC 5/8] x86/mm: Fold p4d page table layer at runtime Kirill A. Shutemov
2017-05-27 15:09 ` Brian Gerst
2017-05-27 22:46 ` Kirill A. Shutemov
2017-05-27 22:56 ` Brian Gerst
2017-05-25 20:33 ` [PATCHv1, RFC 6/8] x86/mm: Replace compile-time checks for 5-level with runtime-time Kirill A. Shutemov
2017-05-25 20:33 ` [PATCHv1, RFC 7/8] x86/mm: Hacks for boot-time switching between 4- and 5-level paging Kirill A. Shutemov
2017-05-26 22:10 ` KASAN vs. " Kirill A. Shutemov
2017-05-29 10:02 ` Dmitry Vyukov
2017-05-29 11:18 ` Andrey Ryabinin
2017-05-29 11:19 ` Dmitry Vyukov
2017-05-29 11:45 ` Andrey Ryabinin
2017-05-29 12:46 ` Andrey Ryabinin
2017-06-01 14:56 ` Andrey Ryabinin
2017-07-10 12:33 ` Kirill A. Shutemov
2017-07-10 12:43 ` Dmitry Vyukov
2017-07-10 14:17 ` Kirill A. Shutemov
2017-07-10 15:56 ` Andy Lutomirski
2017-07-10 18:47 ` Kirill A. Shutemov
2017-07-10 20:07 ` Andy Lutomirski
2017-07-10 21:24 ` Kirill A. Shutemov
2017-07-11 0:30 ` Andy Lutomirski [this message]
2017-07-11 10:35 ` Kirill A. Shutemov
2017-07-11 15:06 ` Andy Lutomirski
2017-07-11 15:15 ` Andrey Ryabinin
2017-07-11 16:45 ` Andrey Ryabinin
2017-07-11 17:03 ` Kirill A. Shutemov
2017-07-11 17:29 ` Andrey Ryabinin
2017-07-11 19:05 ` Kirill A. Shutemov
2017-07-13 12:58 ` Andrey Ryabinin
2017-07-13 13:52 ` Kirill A. Shutemov
2017-07-13 14:15 ` Kirill A. Shutemov
2017-07-13 14:19 ` Andrey Ryabinin
2017-07-24 12:13 ` Kirill A. Shutemov
2017-07-24 14:07 ` Andrey Ryabinin
2017-07-10 16:57 ` Andrey Ryabinin
2017-05-25 20:33 ` [PATCHv1, RFC 8/8] x86/mm: Allow to boot without la57 if CONFIG_X86_5LEVEL=y Kirill A. Shutemov
2017-05-25 23:24 ` [PATCHv1, RFC 0/8] Boot-time switching between 4- and 5-level paging Linus Torvalds
2017-05-26 0:40 ` Andy Lutomirski
2017-05-26 4:18 ` Kevin Easton
2017-05-26 7:21 ` Andy Lutomirski
2017-05-26 13:00 ` Kirill A. Shutemov
2017-05-26 13:35 ` Andi Kleen
2017-05-26 15:51 ` Linus Torvalds
2017-05-26 15:58 ` Kirill A. Shutemov
2017-05-26 16:13 ` Linus Torvalds
2017-05-26 18:24 ` hpa
2017-05-26 19:23 ` Dave Hansen
2017-05-26 19:36 ` hpa
2017-05-26 19:40 ` hpa
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to='CALCETrW6pWzpdf1MVx_ytaYYuVGBsF7R+JowEsKqd3i=vCwJ_w@mail.gmail.com' \
--to=luto@kernel.org \
--cc=ak@linux.intel.com \
--cc=akpm@linux-foundation.org \
--cc=aryabinin@virtuozzo.com \
--cc=dave.hansen@intel.com \
--cc=dvyukov@google.com \
--cc=glider@google.com \
--cc=hpa@zytor.com \
--cc=kasan-dev@googlegroups.com \
--cc=kirill.shutemov@linux.intel.com \
--cc=kirill@shutemov.name \
--cc=linux-arch@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=mingo@redhat.com \
--cc=tglx@linutronix.de \
--cc=torvalds@linux-foundation.org \
--cc=x86@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox