This series fixes up an issue discovered running crashme - user code can
cause the kernel to die() by performing unaligned accesses to the GIC
user page. The first patch fixes this by allowing the kernel to recover
from bus errors resulting from bad accesses to the GIC user page (or
anywhere else we expect might fault). The remaining 3 patches silence
kernel log output from such bus errors in cases where they are somewhat
expected.
It'd be great to get these into v4.14, but especially patch 1 in order
to prevent users killing the kernel.
Thanks,
Paul
Paul Burton (4):
MIPS: Search main exception table for data bus errors
MIPS: Don't dump CM error state for fixed up bus errors
MIPS: Allow bus error handlers to request quiet behaviour
MIPS: Silence kernel log output for GIC user page bus errors
arch/mips/include/asm/mips-cm.h | 11 ++++++++---
arch/mips/include/asm/traps.h | 1 +
arch/mips/kernel/mips-cm.c | 39 ++++++++++++++++++++++++++++++++++-----
arch/mips/kernel/traps.c | 15 +++++++++------
4 files changed, 52 insertions(+), 14 deletions(-)
--
2.14.1
