| commit | acd644bb4abb4d9f0ba6b9ec2b356263971ef9d0 | [log] [tgz] |
|---|---|---|
| author | H. Peter Anvin <hpa@zytor.com> | Wed Jan 30 13:33:04 2008 +0100 |
| committer | Ingo Molnar <mingo@elte.hu> | Wed Jan 30 13:33:04 2008 +0100 |
| tree | 9fcea88cca70b60efa8d49b9e3a11a43408a7449 | |
| parent | 1a8514e04e3f0249a75f66225e99cdf48d305be7 [diff] |
x86 setup: guard the heap against invalid stack setups If we use the bootloader-provided stack pointer, we might end up in a situation where the bootloader (incorrectly) pointed the stack in the middle of our heap. Catch this by simply comparing the computed heap end value to the stack pointer minus the defined stack size. Signed-off-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>