dect
/
linux-2.6
Archived
13
0
Fork 0
Code Releases Activity

EDAC, MCE: Warn about LS MCEs on F14h 

F14h CPUs do not generate LS MCEs so exit early and warn the user in
case this path is ever hit that something else might be going haywire.

Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
This commit is contained in:
Borislav Petkov 2010-08-27 17:03:34 +02:00 committed by Borislav Petkov
parent dd53bce4e8
commit ded5062328
1 changed files with 13 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
drivers/edac/mce_amd.c
View File

@ -339,19 +339,27 @@ wrong_bu_mce:
static void amd_decode_ls_mce(struct mce *m)
{
u32 ec = m->status & 0xffff;
u32 xec = (m->status >> 16) & 0xf;
u16 ec = m->status & 0xffff;
u8 xec = (m->status >> 16) & 0xf;
if (boot_cpu_data.x86 == 0x14) {
pr_emerg("You shouldn't be seeing an LS MCE on this cpu family,"
" please report on LKML.\n");
return;
}
pr_emerg(HW_ERR "Load Store Error");
if (xec == 0x0) {
u8 rrrr = (ec >> 4) & 0xf;
u8 r4 = (ec >> 4) & 0xf;
if (!BUS_ERROR(ec) || (rrrr != 0x3 && rrrr != 0x4))
if (!BUS_ERROR(ec) || (r4 != R4_DRD && r4 != R4_DWR))
goto wrong_ls_mce;
pr_cont(" during %s.\n", RRRR_MSG(ec));
}
} else
goto wrong_ls_mce;
return;
wrong_ls_mce: