* Matt Fleming <matt@xxxxxxxxxxxxxxxxxxx> wrote: > 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.7090706@xxxxxxxxx > > 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(-) Pulled, thanks Matt! Ingo -- To unsubscribe from this list: send the line "unsubscribe linux-efi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
