From: "H. Peter Anvin" <hpa@zytor.com>
To: vgoyal@in.ibm.com
Cc: "Eric W. Biederman" <ebiederm@xmission.com>,
Don Zickus <dzickus@redhat.com>,
fastboot@osdl.org, Horms <horms@verge.net.au>,
Jan Kratochvil <lace@jankratochvil.net>,
Magnus Damm <magnus.damm@gmail.com>,
linux-kernel@vger.kernel.org
Subject: Re: [Fastboot] [CFT] ELF Relocatable x86 and x86_64 bzImages
Date: Mon, 14 Aug 2006 10:04:29 -0700 [thread overview]
Message-ID: <44E0AD1D.1040408@zytor.com> (raw)
In-Reply-To: <20060814165150.GA2519@in.ibm.com>
Vivek Goyal wrote:
> On Thu, Aug 10, 2006 at 02:09:58PM -0600, Eric W. Biederman wrote:
>>> I just reserved memory at non 2MB aligned location 65MB@15MB so that
>>> kernel is loaded at 16MB and other smaller segments below the compressed
>>> image, then I can successfully booted into the kdump kernel.
>> :)
>>
>>> So basically kexec on panic path seems to be clean except stomping issue.
>>> May be bzImage program header should reflect right "MemSize" which
>>> takes into account extra memory space calculations.
>> Yes. That sounds like the right thing to do.
>>
>> I remember trying to compute a good memsize when I created the bzImage
>> header but it is completely possible I missed some part of the
>> calculation or assumed that the kernels .bss section would always be
>> larger than what I needed for decompression.
>>
Could someone please describe the intended semantics of this MemSize
header, *and* its intended usage?
-hpa
next prev parent reply other threads:[~2006-08-14 17:05 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <aec7e5c30606300145p441d8d0xd89fab5e87de5a22@mail.gmail.com>
[not found] ` <20060705222448.GC992@in.ibm.com>
[not found] ` <aec7e5c30607051932r49bbcc7eh2c190daa06859dcc@mail.gmail.com>
[not found] ` <20060706081520.GB28225@host0.dyn.jankratochvil.net>
[not found] ` <aec7e5c30607070147g657d2624qa93a145dd4515484@mail.gmail.com>
[not found] ` <20060707133518.GA15810@in.ibm.com>
[not found] ` <20060707143519.GB13097@host0.dyn.jankratochvil.net>
[not found] ` <20060710233219.GF16215@in.ibm.com>
[not found] ` <20060711010815.GB1021@host0.dyn.jankratochvil.net>
[not found] ` <m1d5c92yv4.fsf@ebiederm.dsl.xmission.com>
2006-07-31 16:19 ` [CFT] ELF Relocatable x86 and x86_64 bzImages Eric W. Biederman
2006-07-31 20:25 ` Vivek Goyal
2006-07-31 21:00 ` [Fastboot] " Vivek Goyal
2006-08-01 2:31 ` Eric W. Biederman
2006-08-01 2:34 ` H. Peter Anvin
2006-08-01 3:44 ` Eric W. Biederman
2006-08-01 4:25 ` Jan Kratochvil
2006-08-01 9:09 ` Eric W. Biederman
2006-08-01 9:43 ` Jan Kratochvil
2006-08-01 11:28 ` Eric W. Biederman
2006-08-04 21:08 ` Don Zickus
2006-08-04 21:25 ` Eric W. Biederman
2006-08-04 23:43 ` Don Zickus
2006-08-05 7:49 ` Eric W. Biederman
2006-08-05 16:07 ` Eric W. Biederman
2006-08-07 17:44 ` Don Zickus
2006-08-07 18:08 ` Eric W. Biederman
2006-08-07 23:57 ` Don Zickus
2006-08-08 5:01 ` Eric W. Biederman
2006-08-08 19:36 ` Don Zickus
2006-08-09 20:06 ` Don Zickus
2006-08-10 6:09 ` Eric W. Biederman
2006-08-10 13:13 ` Vivek Goyal
2006-08-10 17:05 ` Eric W. Biederman
2006-08-10 18:18 ` Vivek Goyal
2006-08-10 20:09 ` Eric W. Biederman
2006-08-11 21:25 ` Don Zickus
2006-08-12 7:20 ` Eric W. Biederman
2006-08-12 15:25 ` Don Zickus
2006-08-12 19:41 ` Eric W. Biederman
2006-08-13 20:06 ` Andi Kleen
2006-08-13 21:44 ` Eric W. Biederman
2006-08-14 16:51 ` [Fastboot] " Vivek Goyal
2006-08-14 17:04 ` H. Peter Anvin [this message]
2006-08-14 18:11 ` Vivek Goyal
2006-08-14 19:32 ` H. Peter Anvin
2006-08-14 19:42 ` Vivek Goyal
2006-08-14 19:45 ` H. Peter Anvin
2006-08-14 19:57 ` Vivek Goyal
2006-08-14 20:10 ` Eric W. Biederman
2006-08-14 20:59 ` Vivek Goyal
2006-08-14 21:15 ` Eric W. Biederman
2006-08-14 20:00 ` Eric W. Biederman
2006-08-08 23:36 ` Andi Kleen
2006-08-25 20:16 ` Vivek Goyal
2006-08-25 20:16 ` Vivek Goyal
[not found] <6EIOG-2xY-31@gated-at.bofh.it>
[not found] ` <6EIOG-2xY-33@gated-at.bofh.it>
[not found] ` <6EIOG-2xY-35@gated-at.bofh.it>
[not found] ` <6EIOG-2xY-37@gated-at.bofh.it>
[not found] ` <6EIOG-2xY-39@gated-at.bofh.it>
[not found] ` <6EIOG-2xY-19@gated-at.bofh.it>
[not found] ` <6Gf5M-2zt-23@gated-at.bofh.it>
[not found] ` <6Gfpt-30C-49@gated-at.bofh.it>
[not found] ` <6GhAA-6bP-19@gated-at.bofh.it>
[not found] ` <6Gx2C-436-5@gated-at.bofh.it>
[not found] ` <6HhoT-5E7-33@gated-at.bofh.it>
[not found] ` <6HhRQ-6uk-3@gated-at.bofh.it>
2006-08-09 12:40 ` [Fastboot] " Bodo Eggert
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=44E0AD1D.1040408@zytor.com \
--to=hpa@zytor.com \
--cc=dzickus@redhat.com \
--cc=ebiederm@xmission.com \
--cc=fastboot@osdl.org \
--cc=horms@verge.net.au \
--cc=lace@jankratochvil.net \
--cc=linux-kernel@vger.kernel.org \
--cc=magnus.damm@gmail.com \
--cc=vgoyal@in.ibm.com \
/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.