Folks, please pull the following bugfix from Sai which prevents a kernel panic when booting an EFI machine with CONFIG_DEBUG_VIRTUAL enabled.
This bug was reported last year by Dave Hansen, https://lkml.kernel.org/r/5462999a.7090...@intel.com and since nobody else has reported it, and given that it's only triggerable with a debug config option, I figured this should be targeted at v4.4. The following changes since commit 0f96a99dab366333439e110d6ad253bc7c557c09: efi: Add "efi_fake_mem" boot option (2015-10-12 14:20:09 +0100) are available in the git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/mfleming/efi.git tags/efi-next for you to fetch changes up to 2c66e24d75d424919c42288b418d2e593fa818b1: x86/efi: Fix kernel panic when CONFIG_DEBUG_VIRTUAL is enabled (2015-10-25 10:22:25 +0000) ---------------------------------------------------------------- * Fix a kernel panic by not passing EFI virtual mapping addresses to __pa() in the x86 pageattr code. Since these virtual addreses are not part of the direct mapping or kernel text mapping, passing them to __pa() will trigger a BUG_ON() when CONFIG_DEBUG_VIRTUAL is enabled - Sai Praneeth Prakhya ---------------------------------------------------------------- Sai Praneeth (1): x86/efi: Fix kernel panic when CONFIG_DEBUG_VIRTUAL is enabled arch/x86/mm/pageattr.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
