From: Michael Guntsche <mike@it-loops.com>
To: Michael Tokarev <mjt@tls.msk.ru>
Cc: Michal Marek <mmarek@suse.cz>, Sam Ravnborg <sam@ravnborg.org>,
Oliver Hartkopp <oliver@hartkopp.net>,
linux-kernel <linux-kernel@vger.kernel.org>,
Andreas Schwab <schwab@linux-m68k.org>
Subject: Re: [PATCH] kbuild: correct size calculation of bzImgae / fix x86 boot
Date: Mon, 21 Dec 2009 21:48:03 +0100 [thread overview]
Message-ID: <20091221204802.GA70740@trillian.local> (raw)
In-Reply-To: <4B2FD252.4060700@msgid.tls.msk.ru>
On 2009.12.21 22:53:54 , Michael Tokarev wrote:
> Michael Guntsche wrote:
> > Just a quick update from my side. I tried the patch from Andreas and build a kernel
> > with dash as defaulti shell. I was able to boot the resulting kernel image
> > without any problems.
>
> That's not a good test case. Because even with bogus data the kernel might
> boot: for example, allocating alot more memory for the unpacking than necessary -
> it does not crash but the data is still bogus.
>
> The better (and much faster) check is to verify that the z_output_len value
> in arch/x86/boot/compressed/piggy.S matches the size of
> arch/x86/boot/compressed/vmlinuz.bin.
Looks ok for me.
piggy.S:
z_output_len = 3550876
ls -la vmlinux.bin:
-rwxr-xr-x 1 root root 3550876 Dec 21 17:21 vmlinux.bin
Kind regards,
Michael
next prev parent reply other threads:[~2009-12-21 20:48 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-12-19 23:34 2.6.33-rc1 Reboot right after bootloader Michael Guntsche
2009-12-20 8:46 ` Sam Ravnborg
2009-12-20 9:10 ` Johannes Stezenbach
2009-12-20 10:38 ` Michael Tokarev
2009-12-20 11:10 ` Michael Tokarev
2009-12-20 11:38 ` Michael Tokarev
2009-12-20 9:11 ` Michael Guntsche
2009-12-20 10:03 ` [PATCH] kbuild: correct size calculation of bzImgae / fix x86 boot Sam Ravnborg
2009-12-20 10:20 ` Oliver Hartkopp
2009-12-20 10:28 ` Willy Tarreau
2009-12-20 10:47 ` Michael Tokarev
2009-12-20 13:09 ` Willy Tarreau
2009-12-20 11:19 ` Michael Tokarev
2009-12-20 12:02 ` Andreas Schwab
2009-12-20 12:18 ` Sam Ravnborg
2009-12-21 12:23 ` Michal Marek
2009-12-21 13:50 ` Andreas Schwab
2009-12-20 14:11 ` Sam Ravnborg
2009-12-21 14:17 ` Michal Marek
2009-12-21 16:28 ` Michael Guntsche
2009-12-21 19:53 ` Michael Tokarev
2009-12-21 20:48 ` Michael Guntsche [this message]
2009-12-21 18:28 ` H. Peter Anvin
2009-12-21 19:09 ` H. Peter Anvin
2009-12-20 13:50 ` Arkadiusz Miskiewicz
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