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authorH.J. Lu <hjl.tools@gmail.com>2016-01-04 10:17:09 -0800
committerJiri Slaby <jslaby@suse.cz>2016-01-25 15:15:41 +0100
commita9166cbdee829d53723cf9324da0951ff9dd6802 (patch)
tree4e5e0c4c57167002802afc7cdbd0cc21f0cb31c8
parent5dbeb6d5d20d4a037b68a1c75c13bdc88c1566e2 (diff)
x86/boot: Double BOOT_HEAP_SIZE to 64KB
commit 8c31902cffc4d716450be549c66a67a8a3dd479c upstream. 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 Signed-off-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Jiri Slaby <jslaby@suse.cz>
-rw-r--r--arch/x86/include/asm/boot.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/include/asm/boot.h b/arch/x86/include/asm/boot.h
index 4fa687a47a62..6b8d6e8cd449 100644
--- a/arch/x86/include/asm/boot.h
+++ b/arch/x86/include/asm/boot.h
@@ -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 */