All of lore.kernel.org
 help / color / mirror / Atom feed
From: Vivek Goyal <vgoyal@redhat.com>
To: "Thomas D." <whissi@whissi.de>
Cc: kexec@lists.infradead.org, Kees Cook <keescook@chromium.org>,
	WANG Chao <chaowang@redhat.com>
Subject: Re: kexec fails to boot kernels where CONFIG_RANDOMIZE_BASE=y is set
Date: Mon, 18 Aug 2014 10:57:18 -0400	[thread overview]
Message-ID: <20140818145718.GD4745@redhat.com> (raw)
In-Reply-To: <53F11882.3060803@whissi.de>

Hi Thomas,

I think kexec is broken with CONFIG_RANDOMIZE_BASE=y. Chao had raised
this issue some time back when this option was introduced. I don't
remember the details though that why it is broken.

CCing Kees Cook. 

Kees, is there a quick fix to the issue. Sooner or later people will
start enabling CONFIG_RANDOMIZE_BASE=y and broken kexec will be a
big issue.

Thanks
Vivek
 
On Sun, Aug 17, 2014 at 11:02:58PM +0200, Thomas D. wrote:
> Hi,
> 
> looks like kexec doesn't support kernels where
> 
>   CONFIG_RANDOMIZE_BASE=y
> 
> is set.
> 
> 
> I already created a bug for Debian in June for this problem [1].
> 
> I am able to confirm the same problem with kexec 2.0.7 on Gentoo and
> when building from source (943ba35f8143408d8ada9a24d0986663cc612df9).
> 
> Is this a known problem/limitation?
> 
> Is there anything I can help you with to get this fixed?
> 
> Thanks.
> 
> 
> See also:
> =========
> [1] https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=754288
> 
> 
> -Thomas
> 
> _______________________________________________
> kexec mailing list
> kexec@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/kexec

_______________________________________________
kexec mailing list
kexec@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/kexec

  reply	other threads:[~2014-08-18 14:57 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-08-17 21:02 kexec fails to boot kernels where CONFIG_RANDOMIZE_BASE=y is set Thomas D.
2014-08-18 14:57 ` Vivek Goyal [this message]
2014-08-19  9:07   ` WANG Chao
2014-08-20 14:33     ` Vivek Goyal
2014-08-21 15:57       ` Kees Cook
2014-08-21 18:10         ` Vivek Goyal
2014-08-21 19:02           ` Vivek Goyal
2014-08-21 19:27             ` Thomas D.
2014-08-22 18:18               ` Kexec failing in handle_relocations() (Was: Re: kexec fails to boot kernels where CONFIG_RANDOMIZE_BASE=y is set) Vivek Goyal
2014-08-21 19:16           ` kexec fails to boot kernels where CONFIG_RANDOMIZE_BASE=y is set Vivek Goyal
2014-08-22  3:19           ` WANG Chao
2014-08-22 11:59             ` Baoquan He
2014-08-22 12:30               ` Thomas D.
2014-08-22 12:40                 ` Vivek Goyal
2014-08-22 13:23                   ` Thomas D.
2014-08-22 13:16               ` Vivek Goyal
2014-08-22 14:44                 ` Baoquan He
2014-08-22 12:38             ` Vivek Goyal
2014-08-22 12:47               ` Thomas D.
2014-08-22 12:53                 ` Vivek Goyal
2014-08-22 14:59                   ` Baoquan He

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=20140818145718.GD4745@redhat.com \
    --to=vgoyal@redhat.com \
    --cc=chaowang@redhat.com \
    --cc=keescook@chromium.org \
    --cc=kexec@lists.infradead.org \
    --cc=whissi@whissi.de \
    /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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.