Commit-ID: 88921be30296e126896ee4d30758f989d1c4ddfb Gitweb: http://git.kernel.org/tip/88921be30296e126896ee4d30758f989d1c4ddfb Author: Andi Kleen <andi@xxxxxxxxxxxxxx> AuthorDate: Wed, 27 May 2009 21:56:51 +0200 Committer: H. Peter Anvin <hpa@xxxxxxxxx> CommitDate: Thu, 28 May 2009 09:24:14 -0700 x86, mce: synchronize core after machine check handling The example code in the IA32 SDM recommends to synchronize the CPU after machine check handling. So do that here. [ Impact: Spec compliance ] Signed-off-by: Andi Kleen <ak@xxxxxxxxxxxxxxx> Signed-off-by: Hidetoshi Seto <seto.hidetoshi@xxxxxxxxxxxxxx> Signed-off-by: H. Peter Anvin <hpa@xxxxxxxxx> --- arch/x86/kernel/cpu/mcheck/mce.c | 3 +++ 1 files changed, 3 insertions(+), 0 deletions(-) diff --git a/arch/x86/kernel/cpu/mcheck/mce.c b/arch/x86/kernel/cpu/mcheck/mce.c index 156cdf6..495c968 100644 --- a/arch/x86/kernel/cpu/mcheck/mce.c +++ b/arch/x86/kernel/cpu/mcheck/mce.c @@ -328,6 +328,8 @@ void machine_check_poll(enum mcp_flags flags, mce_banks_t *b) * Don't clear MCG_STATUS here because it's only defined for * exceptions. */ + + sync_core(); } EXPORT_SYMBOL_GPL(machine_check_poll); @@ -501,6 +503,7 @@ void do_machine_check(struct pt_regs *regs, long error_code) mce_wrmsrl(MSR_IA32_MCG_STATUS, 0); out2: atomic_dec(&mce_entry); + sync_core(); } EXPORT_SYMBOL_GPL(do_machine_check); -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
|