decoding further a Machine Check Excepton
Michael Tinsay <tinsami1-/[email protected]> Tue, 25 Oct 2016 01:31:38 +0000 (UTC)
| Newsgroups | gmane.org.user-groups.linux.philippine |
|---|---|
| Message-ID | <[email protected]> |
--===============8884463634700809324== Content-Type: multipart/alternative; boundary="----=_Part_64909_887282347.1477359098576" ------=_Part_64909_887282347.1477359098576 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Hi! Yesterday one of our servers had this on the console: [ 1184.087973] mce: [Hardware Error]: CPU 0: Machine Check Exception: 4 Ban= k 8: ba000000000000b2[ 1184.087973] mce: [Hardware Error]: TSC 3a3965b65c0 = MISC 80000[ 1184.087973] mce: [Hardware Error]: PROCESSOR 0:206c2 TIME 1477= 301538 SOCKET 0 APIC 0 microcode 2[ 1184.087973] mce: [Hardware Error]: Mac= hine check: Processor context corrupt So I did some research and found out that I can use an app named mcelog to = decode this. =C2=A0This was the output from it: Hardware event. This is not a software error.CPU 0 BANK 8 TSC 3a3965b65c0= =C2=A0MISC 80000=C2=A0TIME 1477301538 Mon Oct 24 17:32:18 2016MCG status:MC= IP=C2=A0MCi status:Uncorrected errorError enabledMCi_MISC register validPro= cessor context corruptMCA: MEMORY CONTROLLER AC_CHANNEL2_ERRTransaction: Ad= dress/Command errorMemory corrected error count (CORE_ERR_CNT): 0Memory tra= nsaction Tracker ID (RTId): 0Memory DIMM ID of error: 0Memory channel ID of= error: 2Memory ECC syndrome: 0STATUS ba000000000000b2 MCGSTATUS 4CPUID Ven= dor Intel Family 6 Model 44SOCKET 0 APIC 0 microcode 2tinsaymc@IT-046641:~$= =C2=A0cat mce.txtCPU 0: Machine Check Exception: 4 Bank 8: ba000000000000b= 2TSC 3a3965b65c0 MISC 80000PROCESSOR 0:206c2 TIME 1477301538 SOCKET 0 APIC = 0 microcode 2 So my question now, for those who know more about this area than I, is: =C2= =A0Is the exception due to a problem in the CPU itself or somewhere on the = motherboard? Regards. --- mike t. ------=_Part_64909_887282347.1477359098576 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable <html><head></head><body><div style=3D"color:#000; background-color:#fff; f= ont-family:Courier New, courier, monaco, monospace, sans-serif;font-size:10= px"><div id=3D"yui_3_16_0_ym19_1_1477358789333_6152">Hi!</div><div id=3D"yu= i_3_16_0_ym19_1_1477358789333_6152"><br></div><div id=3D"yui_3_16_0_ym19_1_= 1477358789333_6152">Yesterday one of our servers had this on the console:</= div><div id=3D"yui_3_16_0_ym19_1_1477358789333_6152"><br></div><div id=3D"y= ui_3_16_0_ym19_1_1477358789333_6253">[ 1184.087973] mce: [Hardware Error]: = CPU 0: Machine Check Exception: 4 Bank 8: ba000000000000b2</div><div id=3D"= yui_3_16_0_ym19_1_1477358789333_6254">[ 1184.087973] mce: [Hardware Error]:= TSC 3a3965b65c0 MISC 80000</div><div id=3D"yui_3_16_0_ym19_1_1477358789333= _6255">[ 1184.087973] mce: [Hardware Error]: PROCESSOR 0:206c2 TIME 1477301= 538 SOCKET 0 APIC 0 microcode 2</div><div id=3D"yui_3_16_0_ym19_1_147735878= 9333_6256">[ 1184.087973] mce: [Hardware Error]: Machine check: Processor c= ontext corrupt</div><div dir=3D"ltr" id=3D"yui_3_16_0_ym19_1_1477358789333_= 6257"><br id=3D"yui_3_16_0_ym19_1_1477358789333_6258"></div><div dir=3D"ltr= " id=3D"yui_3_16_0_ym19_1_1477358789333_6257">So I did some research and fo= und out that I can use an app named mcelog to decode this. This was t= he output from it:</div><div dir=3D"ltr" id=3D"yui_3_16_0_ym19_1_1477358789= 333_6257"><br></div><div dir=3D"ltr" id=3D"yui_3_16_0_ym19_1_1477358789333_= 6257"><div dir=3D"ltr" id=3D"yui_3_16_0_ym19_1_1477358789333_6320">Hardware= event. This is not a software error.</div><div dir=3D"ltr" id=3D"yui_3_16_= 0_ym19_1_1477358789333_6321">CPU 0 BANK 8 TSC 3a3965b65c0 </div><div d= ir=3D"ltr" id=3D"yui_3_16_0_ym19_1_1477358789333_6322">MISC 80000 </di= v><div dir=3D"ltr" id=3D"yui_3_16_0_ym19_1_1477358789333_6323">TIME 1477301= 538 Mon Oct 24 17:32:18 2016</div><div dir=3D"ltr" id=3D"yui_3_16_0_ym19_1_= 1477358789333_6324">MCG status:MCIP </div><div dir=3D"ltr" id=3D"yui_3= _16_0_ym19_1_1477358789333_6325">MCi status:</div><div dir=3D"ltr" id=3D"yu= i_3_16_0_ym19_1_1477358789333_6326">Uncorrected error</div><div dir=3D"ltr"= id=3D"yui_3_16_0_ym19_1_1477358789333_6327">Error enabled</div><div dir=3D= "ltr" id=3D"yui_3_16_0_ym19_1_1477358789333_6328">MCi_MISC register valid</= div><div dir=3D"ltr" id=3D"yui_3_16_0_ym19_1_1477358789333_6329">Processor = context corrupt</div><div dir=3D"ltr" id=3D"yui_3_16_0_ym19_1_1477358789333= _6330">MCA: MEMORY CONTROLLER AC_CHANNEL2_ERR</div><div dir=3D"ltr" id=3D"y= ui_3_16_0_ym19_1_1477358789333_6331">Transaction: Address/Command error</di= v><div dir=3D"ltr" id=3D"yui_3_16_0_ym19_1_1477358789333_6332">Memory corre= cted error count (CORE_ERR_CNT): 0</div><div dir=3D"ltr" id=3D"yui_3_16_0_y= m19_1_1477358789333_6333">Memory transaction Tracker ID (RTId): 0</div><div= dir=3D"ltr" id=3D"yui_3_16_0_ym19_1_1477358789333_6334">Memory DIMM ID of = error: 0</div><div dir=3D"ltr" id=3D"yui_3_16_0_ym19_1_1477358789333_6335">= Memory channel ID of error: 2</div><div dir=3D"ltr" id=3D"yui_3_16_0_ym19_1= _1477358789333_6336">Memory ECC syndrome: 0</div><div dir=3D"ltr" id=3D"yui= _3_16_0_ym19_1_1477358789333_6337">STATUS ba000000000000b2 MCGSTATUS 4</div= ><div dir=3D"ltr" id=3D"yui_3_16_0_ym19_1_1477358789333_6338">CPUID Vendor = Intel Family 6 Model 44</div><div dir=3D"ltr" id=3D"yui_3_16_0_ym19_1_14773= 58789333_6339">SOCKET 0 APIC 0 microcode 2</div><div dir=3D"ltr" id=3D"yui_= 3_16_0_ym19_1_1477358789333_6340">tinsaymc@IT-046641:~$ cat mce.txt</= div><div dir=3D"ltr" id=3D"yui_3_16_0_ym19_1_1477358789333_6341">CPU 0: Mac= hine Check Exception: 4 Bank 8: ba000000000000b2</div><div dir=3D"ltr" id= =3D"yui_3_16_0_ym19_1_1477358789333_6342">TSC 3a3965b65c0 MISC 80000</div><= div dir=3D"ltr" id=3D"yui_3_16_0_ym19_1_1477358789333_6343">PROCESSOR 0:206= c2 TIME 1477301538 SOCKET 0 APIC 0 microcode 2</div><div dir=3D"ltr" id=3D"= yui_3_16_0_ym19_1_1477358789333_6344"><br id=3D"yui_3_16_0_ym19_1_147735878= 9333_6345"></div><div dir=3D"ltr" id=3D"yui_3_16_0_ym19_1_1477358789333_634= 4">So my question now, for those who know more about this area than I, is: = Is the exception due to a problem in the CPU itself or somewhere on t= he motherboard?</div><div dir=3D"ltr" id=3D"yui_3_16_0_ym19_1_1477358789333= _6344"><br></div><div dir=3D"ltr" id=3D"yui_3_16_0_ym19_1_1477358789333_634= 4">Regards.</div><div dir=3D"ltr" id=3D"yui_3_16_0_ym19_1_1477358789333_634= 4"><br></div><div dir=3D"ltr" id=3D"yui_3_16_0_ym19_1_1477358789333_6344"><= br></div><div dir=3D"ltr" id=3D"yui_3_16_0_ym19_1_1477358789333_6344">--- m= ike t.</div></div></div></body></html> ------=_Part_64909_887282347.1477359098576-- --===============8884463634700809324== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _________________________________________________ Philippine Linux Users' Group (PLUG) Mailing List http://lists.linux.org.ph/mailman/listinfo/plug Searchable Archives: http://archives.free.net.ph --===============8884463634700809324==--