Messages in this thread | | | Date | Thu, 10 Apr 2008 14:15:31 -0700 | From | "Yinghai Lu" <> | Subject | Re: [PATCH 1/2] boot: increase stack size for kernel boot loader decompressor -- payload_length |
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On Thu, Apr 10, 2008 at 1:37 PM, H. Peter Anvin <hpa@zytor.com> wrote: > Yinghai Lu wrote: > > > > > > > > > FWIIW, i've been booting allyesconfig bzImages for a long time (with > > > only minimal amount of drivers disabled - mostly old ISA ones that > > > assume the presence of the real hardware), and they boot and work fine > > > on both 32-bit and 64-bit typical whitebox PCs. That means huge > bzImages > > > that decompresses into a ~41 MB kernel image. I'd expect that to be a > > > rather severe test of the decompressor. > > > > > > > payload_offset and payload_length in arch/x86/boot/head.S > > seems to be used by bootloader to seat the bzImage. or just use size > > of bzImage > > > > > > payload_offset/payload_length are used by loaders for nonstandard platform > loaders which don't actually load a bzImage. > > > > > long term, should add one field after payload_length like > > payload_unzip_length to make bootloader or kexec what buffer size > > needed. > > > > You can look at the payload headers for that. >
arch/x86/boot/compressed/head_64.S?
YH
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