lkml.org 
[lkml]   [2017]   [Jun]   [13]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 1/8] x86/mce/AMD: Use msr_stat when clearing MCA_STATUS
Date
From: Yazen Ghannam <yazen.ghannam@amd.com>

The value of MCA_STATUS is used as the MSR when clearing MCA_STATUS.

This may cause the following warning:
unchecked MSR access error: WRMSR to 0x11b (tried to write 0x0000000000000000)
Call Trace:
<IRQ>
? amd_threshold_interrupt+0x209/0x220
smp_threshold_interrupt+0x1b/0x40
threshold_interrupt+0x89/0x90

Use msr_stat instead which has the MSR address.

Fixes: 37d43acfd79f ("x86/mce/AMD: Redo error logging from APIC LVT interrupt handlers")
Signed-off-by: Yazen Ghannam <yazen.ghannam@amd.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Cc: x86-ml <x86@kernel.org>
Link: http://lkml.kernel.org/r/1495658507-7413-1-git-send-email-Yazen.Ghannam@amd.com
Signed-off-by: Borislav Petkov <bp@suse.de>
---
arch/x86/kernel/cpu/mcheck/mce_amd.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kernel/cpu/mcheck/mce_amd.c b/arch/x86/kernel/cpu/mcheck/mce_amd.c
index d00f299f2ada..d11f94e8e68a 100644
--- a/arch/x86/kernel/cpu/mcheck/mce_amd.c
+++ b/arch/x86/kernel/cpu/mcheck/mce_amd.c
@@ -815,7 +815,7 @@ _log_error_bank(unsigned int bank, u32 msr_stat, u32 msr_addr, u64 misc)

__log_error(bank, status, addr, misc);

- wrmsrl(status, 0);
+ wrmsrl(msr_stat, 0);

return status & MCI_STATUS_DEFERRED;
}
--
2.13.0
\
 
 \ /
  Last update: 2017-06-13 18:31    [W:0.180 / U:0.072 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site