diff options
| author | Russell King <rmk@arm.linux.org.uk> | 2016-06-06 17:59:08 +0100 |
|---|---|---|
| committer | Simon Horman <horms@verge.net.au> | 2016-06-08 09:21:52 +0900 |
| commit | cb9056e009a9e139c922f8643ef8dbe54b70edc4 (patch) | |
| tree | 31eca67d8471250a0eccfdb492e55360a8dc8924 | |
| parent | 58afa4991bf8c655972f9ad0a0adf09883439427 (diff) | |
arm: fix kdump to work on LPAE systems
We need to use 64-bit file IO when mapping system memory and the core
dump file as we may be running on a LPAE system, otherwise we risk
mapping memory we shouldn't, and causing a kernel oops:
Unhandled fault: asynchronous external abort (0x211) at 0x00000000
pgd = edd2c740
[00000000] *pgd=82ec98003, *pmd=82dcd2003, *pte=00000000
Acked-by: Baoquan He <bhe@redhat.com>
Signed-off-by: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Simon Horman <horms@verge.net.au>
| -rw-r--r-- | kexec/arch/arm/Makefile | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/kexec/arch/arm/Makefile b/kexec/arch/arm/Makefile index 38137d7..60e433a 100644 --- a/kexec/arch/arm/Makefile +++ b/kexec/arch/arm/Makefile @@ -18,6 +18,9 @@ libfdt_SRCS += $(LIBFDT_SRCS:%=kexec/libfdt/%) arm_CPPFLAGS = -I$(srcdir)/kexec/libfdt +# We want 64-bit file IO for kdump to work correctly on LPAE systems +arm_CPPFLAGS += -D_FILE_OFFSET_BITS=64 + arm_KEXEC_SRCS += $(libfdt_SRCS) arm_UIMAGE = kexec/kexec-uImage.c |