diff options
author | H. Peter Anvin <hpa@linux.intel.com> | 2010-12-17 03:11:09 (GMT) |
---|---|---|
committer | H. Peter Anvin <hpa@linux.intel.com> | 2010-12-17 03:11:09 (GMT) |
commit | 147dd5610c8d1bacb88a6c1dfdaceaf257946ed0 (patch) | |
tree | 7c803d44985e61879018dd76db52f77922e1b772 /arch/x86/boot | |
parent | 7f99d946e71e71d484b7543b49e990508e70d0c0 (diff) | |
download | linux-fsl-qoriq-147dd5610c8d1bacb88a6c1dfdaceaf257946ed0.tar.xz |
x86-32: Make sure we can map all of lowmem if we need to
A relocatable kernel can be anywhere in lowmem -- and in the case of a
kdump kernel, is likely to be fairly high. Since the early page
tables map everything from address zero up we need to make sure we
allocate enough brk that we can map all of lowmem if we need to.
Reported-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Tested-by: Yinghai Lu <yinghai@kernel.org>
LKML-Reference: <4D0AD3ED.8070607@kernel.org>
Diffstat (limited to 'arch/x86/boot')
-rw-r--r-- | arch/x86/boot/compressed/misc.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/boot/compressed/misc.c b/arch/x86/boot/compressed/misc.c index 23f315c..325c052 100644 --- a/arch/x86/boot/compressed/misc.c +++ b/arch/x86/boot/compressed/misc.c @@ -355,7 +355,7 @@ asmlinkage void decompress_kernel(void *rmode, memptr heap, if (heap > 0x3fffffffffffUL) error("Destination address too large"); #else - if (heap > ((-__PAGE_OFFSET-(512<<20)-1) & 0x7fffffff)) + if (heap > ((-__PAGE_OFFSET-(128<<20)-1) & 0x7fffffff)) error("Destination address too large"); #endif #ifndef CONFIG_RELOCATABLE |