Public bug reported: I have set up an HTTP server to be used for HTTP boot.
Here I have the following files: /arm64/grubnetaa64.efi (from grub-efi-arm64-unsigned_2.12-5ubuntu5.1_arm64.deb) /arm64/vmlinuz-6.11.0-8-generic (from linux-image-unsigned-6.11.0-8-generic_6.11.0-8.8_arm64.deb) I have unzipped the kernel with mv vmlinuz-6.11.0-8-generic vmlinuz-6.11.0-8-generic.gz gzip -d vmlinuz-6.11.0-8-generic.gz I have installed qemu-system-arm and qemu-efi-aarch64. I have copied /usr/share/qemu-efi-aarch64/*.fd to my work directory. I start EDK II on QEMU with: qemu-system-aarch64 \ -M virt -accel tcg -m 4096 -smp 4 -cpu max \ -nographic \ -drive if=pflash,format=raw,unit=0,file=AAVMF_CODE.fd,readonly=on \ -drive if=pflash,format=raw,unit=1,file=AAVMF_VARS.fd \ -device virtio-net-device,netdev=n1 \ -netdev user,id=n1,bootfile=http://10.0.0.43/arm64/grubnetaa64.efi In the boot manager menu I choose "UEFI HTTPv4 (MAC:525400123456)" and arrive at the grub rescue console. Loading a first file with the Linux command works fine. But when try a non-existent file afterwards GRUB generates a fatal error after which it will exit: grub> linux (http,10.0.0.43)/arm64/vmlinuz-6.11.0-8-generic grub> linux (http,10.0.0.43)/arm64/foo error: file `/arm64/foo' not found. grub_efi_drop_alloc() called with wrong page count Aborted. Press any key to exit. I have seen the same error on a development branch of U-Boot. So it seems not to be a problem with EDK II. U-Boot provides a little more debug information: efi_free_pages: illegal free 0x13d315000, 0x0 I would have expected GRUB not to call grub_efi_drop_alloc() if no memory was allocated. Best regards Heinrich ** Affects: grub2 (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2087778 Title: Memory management error in HTTP boot To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/2087778/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
