Commit 3a866b16 authored by Gabriele Paoloni's avatar Gabriele Paoloni Committed by Borislav Petkov
Browse files

x86/mce: Panic for LMCE only if mca_cfg.tolerant < 3 



Right now for LMCE, if no_way_out is set, mce_panic() is called
regardless of mca_cfg.tolerant. This is not correct as, if
mca_cfg.tolerant = 3, the code should never panic.

Add that check.

 [ bp: use local ptr 'cfg'. ]

Signed-off-by: default avatarGabriele Paoloni <gabriele.paoloni@intel.com>
Signed-off-by: default avatarBorislav Petkov <bp@suse.de>
Reviewed-by: default avatarTony Luck <tony.luck@intel.com>
Link: https://lkml.kernel.org/r/20201127161819.3106432-4-gabriele.paoloni@intel.com
parent e273e6e1

arch/x86/kernel/cpu/mce/core.c

+1 −1
Original line number Diff line number Diff line
@@ -1368,7 +1368,7 @@ noinstr void do_machine_check(struct pt_regs *regs) 
	 * to see it will clear it.

	 */

	if (lmce) {

		if (no_way_out)

		if (no_way_out && cfg->tolerant < 3)

			mce_panic("Fatal local machine check", &m, msg);

	} else {

		order = mce_start(&no_way_out);