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x86/boot: Double BOOT_HEAP_SIZE to 64KB

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When decompressing kernel image during x86 bootup, malloc memory
for ELF program headers may run out of heap space, which leads
to system halt.  This patch doubles BOOT_HEAP_SIZE to 64KB.

Tested with 32-bit kernel which failed to boot without this patch.

Signed-off-by: H.J. Lu <hjl.tools@gmail.com>
Acked-by: H. Peter Anvin <hpa@zytor.com>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Cc: <stable@vger.kernel.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
H.J. Lu 2016-01-04 10:17:09 -08:00 committed by Ingo Molnar
parent 71b3c126e6
commit 8c31902cff
1 changed files with 1 additions and 1 deletions
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2
arch/x86/include/asm/boot.h
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@ -27,7 +27,7 @@
#define BOOT_HEAP_SIZE 0x400000
#else /* !CONFIG_KERNEL_BZIP2 */
#define BOOT_HEAP_SIZE 0x8000
#define BOOT_HEAP_SIZE 0x10000
#endif /* !CONFIG_KERNEL_BZIP2 */