012fe7f055
The current i386 initrd is limited under 1 GiB memory and it works with most compressed initrds (also initrd_addr_max case reported by kernel). addr = (addr_max - aligned_size) & ~0xFFF; Above line is used to calculate the reasonable address to store the initrd. However, if initrd size is greater than 1 GiB or initrd_addr_max, then it will get overflow, especially on x86_64 arch. Therefore, add a check point to prevent it overflows as well as having a debug log for complex story of initrd addresses. Signed-off-by: Jeremy Szu <jeremy.szu@canonical.com> Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
This is GRUB 2, the second version of the GRand Unified Bootloader. GRUB 2 is rewritten from scratch to make GNU GRUB cleaner, safer, more robust, more powerful, and more portable. See the file NEWS for a description of recent changes to GRUB 2. See the file INSTALL for instructions on how to build and install the GRUB 2 data and program files. See the file MAINTAINERS for information about the GRUB maintainers, etc. If you found a security vulnerability in the GRUB please check the SECURITY file to get more information how to properly report this kind of bugs to the maintainers. Please visit the official web page of GRUB 2, for more information. The URL is <http://www.gnu.org/software/grub/grub.html>. More extensive documentation is available in the Info manual, accessible using 'info grub' after building and installing GRUB 2. There are a number of important user-visible differences from the first version of GRUB, now known as GRUB Legacy. For a summary, please see: info grub Introduction 'Changes from GRUB Legacy'