Comment # 4 on bug 1202438 from Michael Chang

The major change from 25 to 26 was adding tpm support to efi grub image and no
change to existing ext2 module. Maybe the out of memory was caused by bigger
memory consumption at run time due to additional memory allocation for
measurement ? Anyway please help to check if your UEFI bios have tpm enabled ?
If so, is it helpful to disable it ? Thanks.