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From: Vivek Goyal <vgoyal@redhat.com>
To: Kees Cook <keescook@chromium.org>
Cc: "Thomas D." <whissi@whissi.de>,
	Kexec Mailing List <kexec@lists.infradead.org>,
	WANG Chao <chaowang@redhat.com>
Subject: Re: kexec fails to boot kernels where CONFIG_RANDOMIZE_BASE=y is set
Date: Thu, 21 Aug 2014 15:02:26 -0400	[thread overview]
Message-ID: <20140821190226.GE21891@redhat.com> (raw)
In-Reply-To: <20140821181000.GB21891@redhat.com>

On Thu, Aug 21, 2014 at 02:10:00PM -0400, Vivek Goyal wrote:

[..]
> Also, I vaguely recall that there was a kernel parameter to disable kASLR.
> And kexec/kdump initially can use that paramter as a work around. What was
> that parameter.

I see that "nokaslr" will disable it at run time. I remember that we
had discussions that it can be used as a work around. But I don't see
kexec-tools or fedora kdump scripts appending "nokaslr" in kdump case.
That's strange.

Chao, would you remember anything about it. 

Thomas, can you please test kexec with "nokaslr" specified in command
line. This can atleast get you going for now till the problem is actually
fixed.

Thanks
Vivek


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  reply	other threads:[~2014-08-21 19:02 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
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 [this message]
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

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