Comment 42 for bug 1649326

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f162bc96a0d2 x86/efi: Delete out-of-date comments of efi_query_variable_store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.