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I have a Lenovo Z50 laptop and after a resuming from standby there is always that error message in my logs.
The output of mcelog is:
CPU 0 BANK 6
MISC 78a0000086 ADDR fef81d00
TIME 1413513507 Thu Oct 16 19:38:27 2014
MCG status:
MCi status:
Error overflow
Uncorrected error
MCi_MISC register valid
MCi_ADDR register valid
Processor context corrupt
MCA: corrected filtering (some unreported errors in same region)
Generic CACHE Level-2 Generic Error
STATUS ee0000000040110a MCGSTATUS 0
MCGCAP c07 APICID 0 SOCKETID 0
CPUID Vendor Intel Family 6 Model 69I ran memtest86+ for over 2 hours and there were no errors. My computer does not hang while I'm using it, the only time I have an issue is when resuming from standby after about 3-5 times of resuming the laptop will hang (black screen) and I will have to do a hard reset.
Other information:
CPU: Intel 4510U
GPU: Intel 4400 and Nvidia 820M
RAM: 1x8GB
lspci:
00:00.0 Host bridge: Intel Corporation Haswell-ULT DRAM Controller (rev 0b)
00:02.0 VGA compatible controller: Intel Corporation Haswell-ULT Integrated Graphics Controller (rev 0b)
00:03.0 Audio device: Intel Corporation Haswell-ULT HD Audio Controller (rev 0b)
00:14.0 USB controller: Intel Corporation 8 Series USB xHCI HC (rev 04)
00:16.0 Communication controller: Intel Corporation 8 Series HECI #0 (rev 04)
00:1b.0 Audio device: Intel Corporation 8 Series HD Audio Controller (rev 04)
00:1c.0 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 3 (rev e4)
00:1c.3 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 4 (rev e4)
00:1d.0 USB controller: Intel Corporation 8 Series USB EHCI #1 (rev 04)
00:1f.0 ISA bridge: Intel Corporation 8 Series LPC Controller (rev 04)
00:1f.2 SATA controller: Intel Corporation 8 Series SATA Controller 1 [AHCI mode] (rev 04)
00:1f.3 SMBus: Intel Corporation 8 Series SMBus Controller (rev 04)
01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 10)
02:00.0 Network controller: Intel Corporation Wireless 3160 (rev 93)
--- This line is 3D controller for the nvidia card, currently disabled from BIOS ---How else can I test if the MCE errors are in fact a CPU issue. This laptop is only 1 month old, no gaming or overheating involved.
Last edited by tigrang (2014-10-17 02:58:23)
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I've been running cachebench -b -x1 -m24 -d5 -e1 (read/write/modify L2 cache specifically) and systester (cpu load) for a while now and mcelog shows nothing.
I suspend and resume and mcelog has the same error.
This only seems to happen when I suspend.
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I've got exactly the same problem with my Lenovo Y510p. Had this error since I bought it and I never had any weird problems occur. I'd say this is just a firmware bug.
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