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authorJ. Bruce Fields <bfields@redhat.com>2014-11-19 18:06:30 +0100
committerJ. Bruce Fields <bfields@redhat.com>2014-11-19 18:06:30 +0100
commit56429e9b3be567a173bd05f5594faf8522c34d3a (patch)
treed218d430ed992cdfa42da084bf36e5aa3c2ecb26 /arch/x86/kernel/cpu/intel.c
parentnfsd: convert nfs4_file searches to use RCU (diff)
parentSUNRPC: Fix locking around callback channel reply receive (diff)
downloadlinux-56429e9b3be567a173bd05f5594faf8522c34d3a.tar.xz
linux-56429e9b3be567a173bd05f5594faf8522c34d3a.zip
merge nfs bugfixes into nfsd for-3.19 branch
In addition to nfsd bugfixes, there are some fixes in -rc5 for client bugs that can interfere with my testing.
Diffstat (limited to 'arch/x86/kernel/cpu/intel.c')
-rw-r--r--arch/x86/kernel/cpu/intel.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c
index 1ef456273172..9cc6b6f25f42 100644
--- a/arch/x86/kernel/cpu/intel.c
+++ b/arch/x86/kernel/cpu/intel.c
@@ -213,12 +213,13 @@ static void intel_workarounds(struct cpuinfo_x86 *c)
{
#ifdef CONFIG_X86_F00F_BUG
/*
- * All current models of Pentium and Pentium with MMX technology CPUs
+ * All models of Pentium and Pentium with MMX technology CPUs
* have the F0 0F bug, which lets nonprivileged users lock up the
* system. Announce that the fault handler will be checking for it.
+ * The Quark is also family 5, but does not have the same bug.
*/
clear_cpu_bug(c, X86_BUG_F00F);
- if (!paravirt_enabled() && c->x86 == 5) {
+ if (!paravirt_enabled() && c->x86 == 5 && c->x86_model < 9) {
static int f00f_workaround_enabled;
set_cpu_bug(c, X86_BUG_F00F);