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linux-acpi@vger.kernel.org, x86@kernel.org, rafael@kernel.org, qiuxu.zhuo@intel.com, nik.borisov@suse.com, Smita.KoralahalliChannabasappa@amd.com Subject: spurious mce Hardware Error messages in next-20250912 Date: Mon, 15 Sep 2025 03:00:09 +0200 Message-ID: <20250915010010.3547-1-spasswolf@web.de> X-Mailer: git-send-email 2.47.3 In-Reply-To: 20250908-wip-mca-updates-v6-0-eef5d6c74b9c@amd.com References: Precedence: bulk X-Mailing-List: linux-next@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Provags-ID: V03:K1:vNh5W7o0sGw2tu3AAaWth41d+FZXAKBijQruaUs5pxCRE2B71sM c7AaO0ugWHKYc4nixAuR1gKc/4bRkobRByBslxZeiOO66f3ki7ykmWocBAgKIdK/CcaRA5o /NIoqELQoqvP9E8L2DKzxEvLmFWSCcIvYT/J0OgSVi99ILdV7qfGgf0eeaDY5LKlE9Ujloo Qh/bfLcfZCmyFHrz+kCWA== X-Spam-Flag: NO UI-OutboundReport: notjunk:1;M01:P0:ChJG+CxSw1Y=;doF7wlOYm+8sLH3OP4GqrgmLcOU sW40nwphho3ENbBcCpt8e7PagMvSVVbKhGLlSkkjgbfOX3AfM4Q9VpGPb43iXorogsYmjfZxA 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(amd64) laptop running debian stable(trixie) and =20 kernel next-20250912 I noticed the following mce error message in demsg: [ T10] mce: [Hardware Error]: Machine check events logged [ T10] [Hardware Error]: Corrected error, no action required. [ T10] [Hardware Error]: CPU:0 (19:50:0) MC11_STATUS[-|CE|-|AddrV|-|-|-|= UECC|-|Poison|-]: 0x8400aa4800a90139 [ T10] [Hardware Error]: Error Addr: 0x006637a200000020 [ T10] [Hardware Error]: IPID: 0x000700b040000000 [ T10] [Hardware Error]: L3 Cache Ext. Error Code: 41 [ T10] [Hardware Error]: cache level: L1, tx: GEN, mem-tx: DRD [ T10] mce: [Hardware Error]: Machine check events logged [ T10] [Hardware Error]: Corrected error, no action required. [ T10] [Hardware Error]: CPU:0 (19:50:0) MC14_STATUS[-|CE|-|AddrV|PCC|-|= SyndV|UECC|-|Poison|-]: 0x8724ac0800000000 [ T10] [Hardware Error]: Error Addr: 0x002bf52e00000020 [ T10] [Hardware Error]: IPID: 0x000700b040000000, Syndrome: 0x000000000= 0000042 [ T10]=20 [ T10] [Hardware Error]: L3 Cache Ext. Error Code: 0 [ T10] [Hardware Error]: cache level: RESV, tx: INSN The messages start about 333.34s after boot and usually appear 327.68s app= art (Yes, these timings are reproducible!): $ dmesg | grep mce [ 333.338334] [ T10] mce: [Hardware Error]: Machine check events logg= ed [ 333.338354] [ T10] mce: [Hardware Error]: Machine check events logg= ed [ 661.018322] [ T10] mce: [Hardware Error]: Machine check events logg= ed [ 661.018347] [ T10] mce: [Hardware Error]: Machine check events logg= ed [ 988.698305] [ T10] mce: [Hardware Error]: Machine check events logg= ed [ 988.698329] [ T10] mce: [Hardware Error]: Machine check events logg= ed [ 1316.378283] [ T10] mce: [Hardware Error]: Machine check events logg= ed [ 1316.378311] [ T10] mce: [Hardware Error]: Machine check events logg= ed [ 1644.058284] [ T10] mce: [Hardware Error]: Machine check events logg= ed [ 1644.058303] [ T10] mce: [Hardware Error]: Machine check events logg= ed As these messages do not appear in v6.17-rc5 I bisected the issue=20 (from v6.17-rc5 to next-20250912) and found this as the first bad commit: cf6f155e848b ("x86/mce: Unify AMD DFR handler with MCA Polling") Are these error messages a new error that was not reported previously or are these error messages a sign that the new code erroneously reports erro= rs? Hardware used: $ lspci 00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Renoir/Cezanne Roo= t Complex 00:00.2 IOMMU: Advanced Micro Devices, Inc. [AMD] Renoir/Cezanne IOMMU 00:01.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Renoir PCIe Dummy = Host Bridge 00:01.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Renoir PCIe GPP Bri= dge 00:02.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Renoir PCIe Dummy = Host Bridge 00:02.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Renoir/Cezanne PCIe= GPP Bridge 00:02.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Renoir/Cezanne PCIe= GPP Bridge 00:02.3 PCI bridge: Advanced Micro Devices, Inc. [AMD] Renoir/Cezanne PCIe= GPP Bridge 00:02.4 PCI bridge: Advanced Micro Devices, Inc. [AMD] Renoir/Cezanne PCIe= GPP Bridge 00:08.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Renoir PCIe Dummy = Host Bridge 00:08.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Renoir Internal PCI= e GPP Bridge to Bus 00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller (re= v 51) 00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge (rev= 51) 00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Cezanne Data Fabri= c; Function 0 00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Cezanne Data Fabri= c; Function 1 00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Cezanne Data Fabri= c; Function 2 00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Cezanne Data Fabri= c; Function 3 00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Cezanne Data Fabri= c; Function 4 00:18.5 Host bridge: Advanced Micro Devices, Inc. [AMD] Cezanne Data Fabri= c; Function 5 00:18.6 Host bridge: Advanced Micro Devices, Inc. [AMD] Cezanne Data Fabri= c; Function 6 00:18.7 Host bridge: Advanced Micro Devices, Inc. [AMD] Cezanne Data Fabri= c; Function 7 01:00.0 PCI bridge: Advanced Micro Devices, Inc. [AMD/ATI] Navi 10 XL Upst= ream Port of PCI Express Switch (rev c3) 02:00.0 PCI bridge: Advanced Micro Devices, Inc. [AMD/ATI] Navi 10 XL Down= stream Port of PCI Express Switch 03:00.0 Display controller: Advanced Micro Devices, Inc. [AMD/ATI] Navi 23= [Radeon RX 6600/6600 XT/6600M] (rev c3) 03:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Navi 21/23 HD= MI/DP Audio Controller 04:00.0 Network controller: MEDIATEK Corp. MT7921K (RZ608) Wi-Fi 6E 80MHz 05:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/= 8211/8411 PCI Express Gigabit Ethernet Controller (rev 15) 06:00.0 Non-Volatile memory controller: Kingston Technology Company, Inc. = KC3000/FURY Renegade NVMe SSD [E18] (rev 01) 07:00.0 Non-Volatile memory controller: Micron/Crucial Technology P1 NVMe = PCIe SSD[Frampton] (rev 03) 08:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] = Cezanne [Radeon Vega Series / Radeon Vega Mobile Series] (rev c5) 08:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Renoir Radeon= High Definition Audio Controller 08:00.2 Encryption controller: Advanced Micro Devices, Inc. [AMD] Family 1= 7h (Models 10h-1fh) Platform Security Processor 08:00.3 USB controller: Advanced Micro Devices, Inc. [AMD] Renoir/Cezanne = USB 3.1 08:00.4 USB controller: Advanced Micro Devices, Inc. [AMD] Renoir/Cezanne = USB 3.1 08:00.5 Multimedia controller: Advanced Micro Devices, Inc. [AMD] Audio Co= processor (rev 01) 08:00.6 Audio device: Advanced Micro Devices, Inc. [AMD] Family 17h/19h/1a= h HD Audio Controller 08:00.7 Signal processing controller: Advanced Micro Devices, Inc. [AMD] S= ensor Fusion Hub $ cat /proc/cpuinfo processor : 0 vendor_id : AuthenticAMD cpu family : 25 model : 80 model name : AMD Ryzen 7 5800H with Radeon Graphics stepping : 0 microcode : 0xa50000c cpu MHz : 2145.090 cache size : 512 KB physical id : 0 siblings : 16 core id : 0 cpu cores : 8 apicid : 0 initial apicid : 0 fpu : yes fpu_exception : yes cpuid level : 16 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 rdt= scp lm constant_tsc rep_good nopl xtopology nonstop_tsc cpuid extd_apicid = aperfmperf rapl pni pclmulqdq monitor ssse3 fma cx16 sse4_1 sse4_2 x2apic = movbe popcnt aes xsave avx f16c rdrand lahf_lm cmp_legacy svm extapic cr8_= legacy abm sse4a misalignsse 3dnowprefetch osvw ibs skinit wdt tce topoext= perfctr_core perfctr_nb bpext perfctr_llc mwaitx cpb cat_l3 cdp_l3 hw_pst= ate ssbd mba ibrs ibpb stibp vmmcall fsgsbase bmi1 avx2 smep bmi2 erms inv= pcid cqm rdt_a rdseed adx smap clflushopt clwb sha_ni xsaveopt xsavec xget= bv1 xsaves cqm_llc cqm_occup_llc cqm_mbm_total cqm_mbm_local clzero irperf= xsaveerptr rdpru wbnoinvd cppc arat npt lbrv svm_lock nrip_save tsc_scale= vmcb_clean flushbyasid decodeassists pausefilter pfthreshold avic v_vmsav= e_vmload vgif v_spec_ctrl umip pku ospke vaes vpclmulqdq rdpid overflow_re= cov succor smca fsrm debug_swap bugs : sysret_ss_attrs spectre_v1 spectre_v2 spec_store_bypass srso ibpb_= no_ret spectre_v2_user tsa bogomips : 6388.44 TLB size : 2560 4K pages clflush size : 64 cache_alignment : 64 address sizes : 48 bits physical, 48 bits virtual power management: ts ttp tm hwpstate cpb eff_freq_ro [13] [14] Bert Karwatzki