From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Prasanna S. Panchamukhi" Subject: Re: EDAC linux-2.6.34-rc5 non correctable errors not reported on AMD64 opteron Date: Thu, 29 Apr 2010 15:31:21 -0700 Message-ID: <20100429223121.GA20899@ppanchamukhi> References: <20100429183003.GB20328@ppanchamukhi> <1272579222.3792.18.camel@keith-laptop> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Content-Disposition: inline In-Reply-To: <1272579222.3792.18.camel@keith-laptop> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bluesmoke-devel-bounces@lists.sourceforge.net To: Keith Mannthey Cc: Rob Becker , "bluesmoke-devel@lists.sourceforge.net" , Arthur Jones , "dougthompson@xmission.com" List-Id: edac.vger.kernel.org On Thu, Apr 29, 2010 at 03:13:42PM -0700, Keith Mannthey wrote: > 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. Shouldn't the edac driver be reporting Uncorrectable Errors even before ..BIOS detects the fatal error and freezes the box? Did someone already tested the 2-bit error injection and reporting on AMD64? Did the edac driver reported Uncorrectable Errors on other architectures Powerpc/Intel? Thanks Prasanna > > 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 > ------------------------------------------------------------------------------