diff options
| author | Trond Myklebust <Trond.Myklebust@netapp.com> | 2011-01-10 14:48:02 -0500 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2011-01-10 14:48:02 -0500 |
| commit | 68c404b18f6fba404b2753622d0459c68ee128ae (patch) | |
| tree | c1ec0bb12f19d91071b461cc2831d9d3dd4c74f3 /arch/x86/kernel/setup.c | |
| parent | d035c36c58dd9183ad6aa7875dea89893faedb55 (diff) | |
| parent | 6650239a4b01077e80d5a4468562756d77afaa59 (diff) | |
Merge branch 'bugfixes' into nfs-for-2.6.38
Conflicts:
fs/nfs/nfs2xdr.c
fs/nfs/nfs3xdr.c
fs/nfs/nfs4xdr.c
Diffstat (limited to 'arch/x86/kernel/setup.c')
| -rw-r--r-- | arch/x86/kernel/setup.c | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c index 21c6746338af..a0f52af256a0 100644 --- a/arch/x86/kernel/setup.c +++ b/arch/x86/kernel/setup.c @@ -501,7 +501,18 @@ static inline unsigned long long get_total_mem(void) return total << PAGE_SHIFT; } -#define DEFAULT_BZIMAGE_ADDR_MAX 0x37FFFFFF +/* + * Keep the crash kernel below this limit. On 32 bits earlier kernels + * would limit the kernel to the low 512 MiB due to mapping restrictions. + * On 64 bits, kexec-tools currently limits us to 896 MiB; increase this + * limit once kexec-tools are fixed. + */ +#ifdef CONFIG_X86_32 +# define CRASH_KERNEL_ADDR_MAX (512 << 20) +#else +# define CRASH_KERNEL_ADDR_MAX (896 << 20) +#endif + static void __init reserve_crashkernel(void) { unsigned long long total_mem; @@ -520,10 +531,10 @@ static void __init reserve_crashkernel(void) const unsigned long long alignment = 16<<20; /* 16M */ /* - * kexec want bzImage is below DEFAULT_BZIMAGE_ADDR_MAX + * kexec want bzImage is below CRASH_KERNEL_ADDR_MAX */ crash_base = memblock_find_in_range(alignment, - DEFAULT_BZIMAGE_ADDR_MAX, crash_size, alignment); + CRASH_KERNEL_ADDR_MAX, crash_size, alignment); if (crash_base == MEMBLOCK_ERROR) { pr_info("crashkernel reservation failed - No suitable area found.\n"); @@ -769,7 +780,6 @@ void __init setup_arch(char **cmdline_p) x86_init.oem.arch_setup(); - resource_alloc_from_bottom = 0; iomem_resource.end = (1ULL << boot_cpu_data.x86_phys_bits) - 1; setup_memory_map(); parse_setup_data(); |