From: Andrey Ryabinin <a.ryabinin@samsung.com>
To: Borislav Petkov <bp@alien8.de>
Cc: Alexander Popov <alpopov@ptsecurity.com>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, "H. Peter Anvin" <hpa@zytor.com>,
Andrey Konovalov <adech.fo@gmail.com>,
Andrew Morton <akpm@linux-foundation.org>,
Andy Lutomirski <luto@kernel.org>,
Alexander Kuleshov <kuleshovmail@gmail.com>,
Denys Vlasenko <dvlasenk@redhat.com>,
Peter Zijlstra <peterz@infradead.org>,
Kees Cook <keescook@chromium.org>,
x86@kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v6 1/1] x86_64: fix KASan shadow region page tables
Date: Fri, 19 Jun 2015 16:36:15 +0300 [thread overview]
Message-ID: <55841ACF.50302@samsung.com> (raw)
In-Reply-To: <20150619120603.GE17826@pd.tnic>
On 06/19/2015 03:06 PM, Borislav Petkov wrote:
> On Fri, Jun 19, 2015 at 02:49:19PM +0300, Andrey Ryabinin wrote:
>> I guess that AMD cpus is more strict (unlike Intel) about violation
>> of reserved/unused bits in page table entries. Please, try with this
>> patch.
>
> With that the guest boots.
>
Great! Thanks.
> How do I check whether KASan actually works? I don't see any note in
> dmesg or some file named "*kasan*" in sysfs...
>
kasan will print report in dmesg whant it will find anything.
To make sure that it works you could try to load testing module (CONFIG_TEST_KASAN).
This module has bugs that kasan should catch.
Also 'slub_debug=U' in bootcmdline will improve reports and out-of-bounds accesses detection.
> Thanks.
>
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
Please read the FAQ at http://www.tux.org/lkml/
next prev parent reply other threads:[~2015-06-19 13:36 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-06-18 7:36 [PATCH v6 1/1] x86_64: fix KASan shadow region page tables Alexander Popov
2015-06-18 9:08 ` Borislav Petkov
2015-06-18 12:22 ` Andrey Ryabinin
2015-06-18 14:55 ` Borislav Petkov
2015-06-18 16:05 ` Andrey Ryabinin
2015-06-18 16:38 ` Borislav Petkov
2015-06-19 11:49 ` Andrey Ryabinin
2015-06-19 12:06 ` Borislav Petkov
2015-06-19 13:36 ` Andrey Ryabinin [this message]
2015-06-19 14:00 ` Ingo Molnar
2015-06-19 14:06 ` Borislav Petkov
2015-06-19 14:16 ` Andrey Ryabinin
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=55841ACF.50302@samsung.com \
--to=a.ryabinin@samsung.com \
--cc=adech.fo@gmail.com \
--cc=akpm@linux-foundation.org \
--cc=alpopov@ptsecurity.com \
--cc=bp@alien8.de \
--cc=dvlasenk@redhat.com \
--cc=hpa@zytor.com \
--cc=keescook@chromium.org \
--cc=kuleshovmail@gmail.com \
--cc=linux-kernel@vger.kernel.org \
--cc=luto@kernel.org \
--cc=mingo@redhat.com \
--cc=peterz@infradead.org \
--cc=tglx@linutronix.de \
--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