On Fri, Dec 21, 2012 at 6:42 PM, Konrad Rzeszutek Wilk <konrad.w...@oracle.com> wrote: > On Mon, Dec 17, 2012 at 11:15:32PM -0800, Yinghai Lu wrote: >> Now we have limit kdump reseved under 896M, because kexec has the limitation. >> and also bzImage need to stay under 4g. >> >> To make kexec/kdump could use range above 4g, we need to make bzImage and >> ramdisk could be loaded above 4g. >> During booting bzImage will be unpacked on same postion and stay high. >> >> The patches add fields in setup_header and boot_params to >> 1. get info about ramdisk position info above 4g from bootloader/kexec >> 2. get info about cmd_line_ptr info above 4g from bootloader/kexec >> 3. set xloadflags bit0 in header for bzImage and bootloader/kexec load >> could check that to decide if it could to put bzImage high. >> 4. use sentinel to make sure ext_* fields in boot_params could be used. >> >> This patches is tested with kexec tools with local changes and they are sent >> to kexec list later. >> >> could be found at: >> >> >> git://git.kernel.org/pub/scm/linux/kernel/git/yinghai/linux-yinghai.git >> for-x86-boot
that points to -v8. > > Did a light test and it looks to work under Xen - thought I had not tested > any various configuration of memory layouts. > > More worryingly it blew up under native under an Dell T105 AMD box with 4GB > of memory. > I can't get it even to print anything on the serial log: boot log with working kernel ? > > (this is an excerpt from pxelinux.cfg/C0A8 file) > LABEL BAREMETAL > KERNEL vmlinuz > APPEND initrd=initramfs.cpio.gz debug selinux=0 loglevel=10 apic=debug > console=uart8250,115200n8 > > > PXELINUX 3.82 2009-06-09 Copyright (C) 1994-2009 H. Peter Anvin et al > Loading > vmlinuz....................................................................... > Loading > initramfs.cpio.gz.....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ready. > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
