From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
stable@vger.kernel.org, Yazen Ghannam <yazen.ghannam@amd.com>,
Borislav Petkov <bp@suse.de>,
Thomas Gleixner <tglx@linutronix.de>
Subject: [PATCH 3.18 14/47] x86/mce/AMD: Give a name to MCA bank 3 when accessed with legacy MSRs
Date: Fri, 28 Apr 2017 10:32:27 +0200 [thread overview]
Message-ID: <20170428083038.958788946@linuxfoundation.org> (raw)
In-Reply-To: <20170428083038.327543269@linuxfoundation.org>
3.18-stable review patch. If anyone has any objections, please let me know.
------------------
From: Yazen Ghannam <yazen.ghannam@amd.com>
commit 29f72ce3e4d18066ec75c79c857bee0618a3504b upstream.
MCA bank 3 is reserved on systems pre-Fam17h, so it didn't have a name.
However, MCA bank 3 is defined on Fam17h systems and can be accessed
using legacy MSRs. Without a name we get a stack trace on Fam17h systems
when trying to register sysfs files for bank 3 on kernels that don't
recognize Scalable MCA.
Call MCA bank 3 "decode_unit" since this is what it represents on
Fam17h. This will allow kernels without SMCA support to see this bank on
Fam17h+ and prevent the stack trace. This will not affect older systems
since this bank is reserved on them, i.e. it'll be ignored.
Tested on AMD Fam15h and Fam17h systems.
WARNING: CPU: 26 PID: 1 at lib/kobject.c:210 kobject_add_internal
kobject: (ffff88085bb256c0): attempted to be registered with empty name!
...
Call Trace:
kobject_add_internal
kobject_add
kobject_create_and_add
threshold_create_device
threshold_init_device
Signed-off-by: Yazen Ghannam <yazen.ghannam@amd.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: http://lkml.kernel.org/r/1490102285-3659-1-git-send-email-Yazen.Ghannam@amd.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
arch/x86/kernel/cpu/mcheck/mce_amd.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/x86/kernel/cpu/mcheck/mce_amd.c
+++ b/arch/x86/kernel/cpu/mcheck/mce_amd.c
@@ -51,7 +51,7 @@ static const char * const th_names[] = {
"load_store",
"insn_fetch",
"combined_unit",
- "",
+ "decode_unit",
"northbridge",
"execution_unit",
};
next prev parent reply other threads:[~2017-04-28 8:36 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-28 8:32 [PATCH 3.18 00/47] 3.18.51-stable review Greg Kroah-Hartman
2017-04-28 8:32 ` [PATCH 3.18 01/47] KEYS: Disallow keyrings beginning with . to be joined as session keyrings Greg Kroah-Hartman
2017-04-28 8:32 ` [PATCH 3.18 02/47] KEYS: Change the name of the dead type to ".dead" to prevent user access Greg Kroah-Hartman
2017-04-28 8:32 ` [PATCH 3.18 03/47] KEYS: fix keyctl_set_reqkey_keyring() to not leak thread keyrings Greg Kroah-Hartman
2017-04-28 8:32 ` [PATCH 3.18 04/47] tracing: Allocate the snapshot buffer before enabling probe Greg Kroah-Hartman
2017-04-28 8:32 ` [PATCH 3.18 05/47] ring-buffer: Have ring_buffer_iter_empty() return true when empty Greg Kroah-Hartman
2017-04-28 8:32 ` [PATCH 3.18 06/47] cifs: Do not send echoes before Negotiate is complete Greg Kroah-Hartman
2017-04-28 8:32 ` [PATCH 3.18 07/47] CIFS: remove bad_network_name flag Greg Kroah-Hartman
2017-04-28 8:32 ` [PATCH 3.18 08/47] s390/mm: fix CMMA vs KSM vs others Greg Kroah-Hartman
2017-04-28 8:32 ` [PATCH 3.18 09/47] Input: elantech - add Fujitsu Lifebook E547 to force crc_enabled Greg Kroah-Hartman
2017-04-28 8:32 ` [PATCH 3.18 10/47] ACPI / power: Avoid maybe-uninitialized warning Greg Kroah-Hartman
2017-04-28 8:32 ` [PATCH 3.18 11/47] mmc: sdhci-esdhc-imx: increase the pad I/O drive strength for DDR50 card Greg Kroah-Hartman
2017-04-28 8:32 ` [PATCH 3.18 12/47] ubi/upd: Always flush after prepared for an update Greg Kroah-Hartman
2017-04-28 8:32 ` [PATCH 3.18 13/47] powerpc/kprobe: Fix oops when kprobed on stdu instruction Greg Kroah-Hartman
2017-04-28 8:32 ` Greg Kroah-Hartman [this message]
2017-04-28 8:32 ` [PATCH 3.18 15/47] kvm: arm/arm64: Fix locking for kvm_free_stage2_pgd Greg Kroah-Hartman
2017-04-28 8:32 ` [PATCH 3.18 16/47] arm64: avoid returning from bad_mode Greg Kroah-Hartman
2017-04-28 8:32 ` [PATCH 3.18 17/47] clk: at91: usb: fix determine_rate prototype again Greg Kroah-Hartman
2017-04-28 8:32 ` [PATCH 3.18 18/47] gadgetfs: fix uninitialized variable in error handling Greg Kroah-Hartman
2017-04-28 8:32 ` [PATCH 3.18 19/47] dm bufio: hide bogus warning Greg Kroah-Hartman
2017-04-28 8:32 ` [PATCH 3.18 20/47] MIPS: Fix the build on jz4740 after removing the custom gpio.h Greg Kroah-Hartman
2017-04-28 8:32 ` [PATCH 3.18 21/47] perf: Avoid horrible stack usage Greg Kroah-Hartman
2017-04-28 8:32 ` [PATCH 3.18 22/47] fs/nfs: fix new compiler warning about boolean in switch Greg Kroah-Hartman
2017-04-28 8:32 ` [PATCH 3.18 23/47] iommu/vt-d: Remove unused variable Greg Kroah-Hartman
2017-04-28 8:32 ` [PATCH 3.18 24/47] mm/init: fix zone boundary creation Greg Kroah-Hartman
2017-04-28 8:32 ` [PATCH 3.18 25/47] net: ti: cpmac: Fix compiler warning due to type confusion Greg Kroah-Hartman
2017-04-28 8:32 ` [PATCH 3.18 26/47] MIPS: asm: compiler: Add new macros to set ISA and arch asm annotations Greg Kroah-Hartman
2017-04-28 8:32 ` [PATCH 3.18 27/47] nfsd: work around a gcc-5.1 warning Greg Kroah-Hartman
2017-04-28 8:32 ` [PATCH 3.18 29/47] brcmfmac: avoid " Greg Kroah-Hartman
2017-04-28 8:32 ` [PATCH 3.18 30/47] tty: nozomi: avoid a harmless gcc warning Greg Kroah-Hartman
2017-04-28 8:32 ` [PATCH 3.18 31/47] net: vxge: avoid unused function warnings Greg Kroah-Hartman
2017-04-28 8:32 ` [PATCH 3.18 33/47] hostap: avoid uninitialized variable use in hfa384x_get_rid Greg Kroah-Hartman
2017-04-28 8:32 ` [PATCH 3.18 34/47] MIPS: MSP71xx: remove odd locking in PCI config space access code Greg Kroah-Hartman
2017-04-28 8:32 ` [PATCH 3.18 35/47] net: tulip: turn compile-time warning into dev_warn() Greg Kroah-Hartman
2017-04-28 8:32 ` [PATCH 3.18 37/47] gfs2: avoid uninitialized variable warning Greg Kroah-Hartman
2017-04-28 8:32 ` [PATCH 3.18 39/47] ARM: 8296/1: cache-l2x0: clean up aurora cache handling Greg Kroah-Hartman
2017-04-28 8:32 ` [PATCH 3.18 40/47] aic94xx: Skip reading user settings if flash is not found Greg Kroah-Hartman
2017-04-28 8:32 ` [PATCH 3.18 41/47] MIPS: ralink: Cosmetic change to prom_init() Greg Kroah-Hartman
2017-04-28 8:32 ` [PATCH 3.18 42/47] kconfig: tinyconfig: provide whole choice blocks to avoid warnings Greg Kroah-Hartman
2017-04-28 8:32 ` [PATCH 3.18 43/47] ARM: 8383/1: nommu: avoid deprecated source register on mov Greg Kroah-Hartman
2017-04-28 8:32 ` [PATCH 3.18 44/47] [media] xc2028: avoid use after free Greg Kroah-Hartman
2017-04-28 8:32 ` [PATCH 3.18 45/47] vfio/pci: Fix integer overflows, bitmask check Greg Kroah-Hartman
2017-04-28 8:32 ` [PATCH 3.18 46/47] staging/android/ion : fix a race condition in the ion driver Greg Kroah-Hartman
2017-04-28 8:33 ` [PATCH 3.18 47/47] ping: implement proper locking Greg Kroah-Hartman
2017-04-28 18:12 ` [PATCH 3.18 00/47] 3.18.51-stable review Guenter Roeck
2017-04-28 19:19 ` Shuah Khan
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