diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2013-05-20 11:36:03 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-05-20 11:36:03 -0700 |
commit | 5e427ec2d066b48a5c27b3a5a3315f7e4e729077 (patch) | |
tree | 27c9fe1bf6026f4c5f50ce89ab7dd1c4f7e9c235 /arch/x86/include/asm | |
parent | 2c2c0e52314ef812a2aa9f7d32b3162584bee92b (diff) |
x86: Fix bit corruption at CPU resume time
In commit 78d77df71510 ("x86-64, init: Do not set NX bits on non-NX
capable hardware") we added the early_pmd_flags that gets the NX bit set
when a CPU supports NX. However, the new variable was marked __initdata,
because the main _use_ of this is in an __init routine.
However, the bit setting happens from secondary_startup_64(), which is
called not only at bootup, but on every secondary CPU start. Including
resuming from STR and at CPU hotplug time. So the value cannot be
__initdata.
Reported-bisected-and-tested-by: Michal Hocko <mhocko@suse.cz>
Cc: stable@vger.kernel.org # v3.9
Acked-by: Peter Anvin <hpa@linux.intel.com>
Cc: Fernando Luis Vázquez Cao <fernando@oss.ntt.co.jp>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/x86/include/asm')
0 files changed, 0 insertions, 0 deletions