From mboxrd@z Thu Jan 1 00:00:00 1970 From: Keith Mannthey Subject: Re: EDAC linux-2.6.34-rc5 non correctable errors not reported on AMD64 opteron Date: Thu, 29 Apr 2010 15:13:42 -0700 Message-ID: <1272579222.3792.18.camel@keith-laptop> References: <20100429183003.GB20328@ppanchamukhi> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20100429183003.GB20328@ppanchamukhi> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bluesmoke-devel-bounces@lists.sourceforge.net To: "Prasanna S. Panchamukhi" Cc: Rob.Becker@riverbed.com, bluesmoke-devel@lists.sourceforge.net, Arthur.Jones@riverbed.com, dougthompson@xmission.com List-Id: edac.vger.kernel.org On Thu, 2010-04-29 at 11:30 -0700, Prasanna S. Panchamukhi wrote: > Hi Doug, > > I am testing Linux-2.6.34-rc5 EDAC driver on AMD64 Opteron. > I am able to inject single bit errors and get the edac driver report the > correctable errors. > But when I inject 2-bit errors, I did not see any notification or kernel > log, the system simply hangs. > This happens with or without edac_mc_panic_on_ue enabled. > Please let me know if I am missing something. > Below are the details. I would have to recheck the specs to be 100% sure but I would consider double bit errors to be fatal on normal Opteron boxes. There is a good chance your BIOS detects the fatal error and freezes the box to prevent data corruption. Thanks, Keith > Thanks > Prasanna > > Steps to reproduce the problem: > > > 1. Build Linux-2.6.34-rc5 using x86_64_defconfig with following additional config options enabled: > CONFIG_EDAC_DECODE_MCE=y > CONFIG_EDAC_MM_EDAC=y > CONFIG_EDAC_AMD64=m > CONFIG_EDAC_AMD64_ERROR_INJECTION=y > CONFIG_EDAC_E752X=m > CONFIG_EDAC_I82975X=m > CONFIG_EDAC_I3000=m > CONFIG_EDAC_I3200=m > CONFIG_EDAC_X38=m > CONFIG_EDAC_I5400=m > CONFIG_EDAC_I5000=m > CONFIG_EDAC_I5100=m > > 2. insert the kernel module > #insmod amd64_edac_mod.ko > > 3. Inject errors > > # echo 3 > /sys/devices/system/edac/mc/mc0/inject_section > # echo 7 > /sys/devices/system/edac/mc/mc0/inject_word > # echo 0x88 > /sys/devices/system/edac/mc/mc0/inject_ecc_vector > # echo 1 > /sys/devices/system/edac/mc/mc0/inject_read > # echo 1 > /sys/devices/system/edac/mc/mc0/inject_write > > 4. Should hang the system in few minutes. > > Additional info: > - AMD64 opteron > # cat /proc/cpuinfo > processor : 0 > vendor_id : AuthenticAMD > cpu family : 16 > model : 2 > model name : Quad-Core AMD Opteron(tm) Processor 2346 HE > stepping : 3 > cpu MHz : 1800.023 > cache size : 512 KB > physical id : 0 > siblings : 4 > core id : 0 > cpu cores : 4 > apicid : 0 > initial apicid : 0 > fpu : yes > fpu_exception : yes > cpuid level : 5 > wp : yes > flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca > cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt > pdpe1gb rdtscp lm 3dnowext 3dnow constant_tsc rep_good nonstop_tsc > extd_apicid pni monitor cx16 popcnt lahf_lm cmp_legacy svm extapic > cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs npt lbrv svm_lock > bogomips : 3600.04 > TLB size : 1024 4K pages > clflush size : 64 > cache_alignment : 64 > address sizes : 48 bits physical, 48 bits virtual > power management: ts ttp tm stc 100mhzsteps hwpstate > > processor : 1 > vendor_id : AuthenticAMD > cpu family : 16 > model : 2 > model name : Quad-Core AMD Opteron(tm) Processor 2346 HE > stepping : 3 > cpu MHz : 1800.023 > cache size : 512 KB > physical id : 0 > siblings : 4 > core id : 1 > cpu cores : 4 > apicid : 1 > initial apicid : 1 > fpu : yes > fpu_exception : yes > cpuid level : 5 > wp : yes > flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca > cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt > pdpe1gb rdtscp lm 3dnowext 3dnow constant_tsc rep_good nonstop_tsc > extd_apicid pni monitor cx16 popcnt lahf_lm cmp_legacy svm extapic > cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs npt lbrv svm_lock > bogomips : 3600.08 > TLB size : 1024 4K pages > clflush size : 64 > cache_alignment : 64 > address sizes : 48 bits physical, 48 bits virtual > power management: ts ttp tm stc 100mhzsteps hwpstate > > processor : 2 > vendor_id : AuthenticAMD > cpu family : 16 > model : 2 > model name : Quad-Core AMD Opteron(tm) Processor 2346 HE > stepping : 3 > cpu MHz : 1800.023 > cache size : 512 KB > physical id : 0 > siblings : 4 > core id : 2 > cpu cores : 4 > apicid : 2 > initial apicid : 2 > fpu : yes > fpu_exception : yes > cpuid level : 5 > wp : yes > flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca > cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt > pdpe1gb rdtscp lm 3dnowext 3dnow constant_tsc rep_good nonstop_tsc > extd_apicid pni monitor cx16 popcnt lahf_lm cmp_legacy svm extapic > cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs npt lbrv svm_lock > bogomips : 3599.96 > TLB size : 1024 4K pages > clflush size : 64 > cache_alignment : 64 > address sizes : 48 bits physical, 48 bits virtual > power management: ts ttp tm stc 100mhzsteps hwpstate > > processor : 3 > vendor_id : AuthenticAMD > cpu family : 16 > model : 2 > model name : Quad-Core AMD Opteron(tm) Processor 2346 HE > stepping : 3 > cpu MHz : 1800.023 > cache size : 512 KB > physical id : 0 > siblings : 4 > core id : 3 > cpu cores : 4 > apicid : 3 > initial apicid : 3 > fpu : yes > fpu_exception : yes > cpuid level : 5 > wp : yes > flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca > cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt > pdpe1gb rdtscp lm 3dnowext 3dnow constant_tsc rep_good nonstop_tsc > extd_apicid pni monitor cx16 popcnt lahf_lm cmp_legacy svm extapic > cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs npt lbrv svm_lock > bogomips : 3600.01 > TLB size : 1024 4K pages > clflush size : 64 > cache_alignment : 64 > address sizes : 48 bits physical, 48 bits virtual > power management: ts ttp tm stc 100mhzsteps hwpstate > > > > > ------------------------------------------------------------------------------ > _______________________________________________ > bluesmoke-devel mailing list > bluesmoke-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/bluesmoke-devel ------------------------------------------------------------------------------