I reviewed the git logs and there were allot of efi changes in 3.13.0-101. Here is a list:
406bcddd9857 x86/reboot: Add EFI reboot quirk for ACPI Hardware Reduced flag dddbb2cd38ff x86/efi: Fix boot crash by mapping EFI memmap entries bottom-up at runtime, instead of top-down bf3b58763565 efi: Disable interrupts around EFI calls, not in the epilog/prolog calls 68ac78b66414 x86/efi: Implement a __efi_call_virt macro 76deae345d9e x86/efi: Delete most of the efi_call* macros fe1e82232ed4 UBUNTU: SAUCE: merge with v3.15 5bd4d89ffc2f x86/efi: Rip out phys_efi_get_time() 3f049eaef571 UBUNTU: SAUCE: Merge remote-tracking branch 'tip/x86/efi-mixed' into efi-for-mingo 59ed4b67da79 x86/efi: Wire up CONFIG_EFI_MIXED daa829de21e9 x86/efi: Delete dead code when checking for non-native 6edf5236f210 x86/efi: Split efi_enter_virtual_mode 0dc405eb8e11 x86/efi: Make efi virtual runtime map passing more robust 68c47ffe8bb0 x86/efi: Dump the EFI page table bcdf5feaecae x86/efi: Style neatening f162bc96a0d2 x86/efi: Delete out-of-date comments of efi_query_variable_store 78c8a6942cc5 efi: Set feature flags inside feature init functions c25eaae2c28f efi: Move facility flags to struct efi f27702352afe x86/efi: Quirk out SGI UV f1ef6ec21389 x86/efi: Fix 32-bit fallout c77a8e25d784 UBUNTU: SAUCE: Merge tag 'v3.13-rc7' into x86/efi-kexec to resolve conflicts 63a426527734 x86/efi: Delete superfluous global variables c8adf92ae1a0 x86/efi: Pass necessary EFI data for kexec via setup_data 74bdcac0c014 efi: Export EFI runtime memory mapping to sysfs db7b55fcecc4 efi: Export more EFI table variables to sysfs fd610615acf3 x86/efi: Cleanup efi_enter_virtual_mode() function 4c01cc70618b x86/efi: Fix off-by-one bug in EFI Boot Services reservation 528f2d29e8f1 UBUNTU: SAUCE: Merge tag 'efi-next' of git://git.kernel.org/pub/scm/linux/kernel/git/mfleming/efi into x86/efi a058d6f91746 x86/efi: Check krealloc return value a14015f4799d x86/efi: Runtime services virtual mapping 177ead2c3dff x86/efi: Simplify EFI_DEBUG bf963b4f71da Revert "x86/efi: Fix off-by-one bug in EFI Boot Services reservation" 4a394e4cd9d7 Revert "x86/efi: Runtime services virtual mapping" 033a9865e181 Revert "x86/efi: Check krealloc return value" 11cd444bf961 Revert "x86/efi: Fix 32-bit fallout" be7a87ad04b8 Revert "efi: Disable interrupts around EFI calls, not in the epilog/prolog calls" I think I may have to bisect manually to figure out which of these commits is the culprit. To narrow it down, I built a kernel up to commit 528f2d29e8f1. The test kernel can be downloaded from: http://kernel.ubuntu.com/~jsalisbury/lp1649326/528f2d2 Can you test that kernel and report back if it has the bug or not? I will build the next test kernel based on your test results. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1649326 Title: EFI stub loader broken in kernel 3.13.0-101-generic (& later in 3.13 series) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1649326/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
