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| author | Helge Deller <deller@gmx.de> | 2016-10-07 18:19:55 +0200 |
|---|---|---|
| committer | Helge Deller <deller@gmx.de> | 2016-10-07 18:23:43 +0200 |
| commit | 690d097c00c88fa9d93d198591e184164b1d8c20 (patch) | |
| tree | 54761151bc2733d59d0ec02c4a7dda571da5076a /arch/parisc/include | |
| parent | 4fe9e1d957e45ad8eba9885ee860a0e93d13a7c7 (diff) | |
| download | linux-690d097c00c88fa9d93d198591e184164b1d8c20.tar.gz linux-690d097c00c88fa9d93d198591e184164b1d8c20.tar.bz2 linux-690d097c00c88fa9d93d198591e184164b1d8c20.zip | |
parisc: Increase KERNEL_INITIAL_SIZE for 32-bit SMP kernels
Increase the initial kernel default page mapping size for SMP kernels to 32MB
and add a runtime check which panics early if the kernel is bigger than the
initial mapping size.
This fixes boot crashes of 32bit SMP kernels. Due to the introduction of huge
page support in kernel 4.4 and it's required initial kernel layout in memory, a
32bit SMP kernel usually got bigger (in layout, not size) than 16MB.
Cc: stable@vger.kernel.org #4.4+
Signed-off-by: Helge Deller <deller@gmx.de>
Diffstat (limited to 'arch/parisc/include')
| -rw-r--r-- | arch/parisc/include/asm/pgtable.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h index 291cee28ccb6..e44bdb9078a5 100644 --- a/arch/parisc/include/asm/pgtable.h +++ b/arch/parisc/include/asm/pgtable.h @@ -83,7 +83,7 @@ static inline void purge_tlb_entries(struct mm_struct *mm, unsigned long addr) printk("%s:%d: bad pgd %08lx.\n", __FILE__, __LINE__, (unsigned long)pgd_val(e)) /* This is the size of the initially mapped kernel memory */ -#ifdef CONFIG_64BIT +#if defined(CONFIG_64BIT) || defined(CONFIG_SMP) #define KERNEL_INITIAL_ORDER 25 /* 1<<25 = 32MB */ #else #define KERNEL_INITIAL_ORDER 24 /* 1<<24 = 16MB */ |