Em Thu, 20 Jul 2017 14:15:54 -0700 "Luck, Tony" <tony.luck@xxxxxxxxx> escreveu: > On Wed, Jul 19, 2017 at 01:02:45PM -0300, Mauro Carvalho Chehab wrote: > > Tony/Aris, > > > > I got yesterday an HP ML350 G9, equipped with Sandy Bridge EP CPUs (E5-2640v4). > > I'm running Kernel 4.11 there. > > > > AFAIKT, Sandy Bridge EP has 4 channels per memory controller, right? > > That would match the number of memory slots on this machine (24 slots). > > > > Yet, EDAC is only identifying 3 channels per CPU: > > > > $ ras-mc-ctl --layout > > +-----------------------------------------------------------------------+ > > | mc0 | mc1 | > > | channel0 | channel1 | channel2 | channel0 | channel1 | channel2 | > > -------+-----------------------------------------------------------------------+ > > slot2: | 0 MB | 0 MB | 0 MB | 0 MB | 0 MB | 0 MB | > > slot1: | 0 MB | 0 MB | 0 MB | 0 MB | 0 MB | 0 MB | > > slot0: | 16384 MB | 0 MB | 16384 MB | 16384 MB | 0 MB | 16384 MB | > > -------+---------------------------------------------------------------------------+ > > > > So, it seems that either the BIOS is hidden the other channel or > > there's something wrong with SandyBridge EP support at sb_edac driver. > > Does lspci show all four of these devices? > > include/linux/pci_ids.h:#define PCI_DEVICE_ID_INTEL_SBRIDGE_IMC_TAD0 0x3caa /* 15.2 */ > include/linux/pci_ids.h:#define PCI_DEVICE_ID_INTEL_SBRIDGE_IMC_TAD1 0x3cab /* 15.3 */ > include/linux/pci_ids.h:#define PCI_DEVICE_ID_INTEL_SBRIDGE_IMC_TAD2 0x3cac /* 15.4 */ > include/linux/pci_ids.h:#define PCI_DEVICE_ID_INTEL_SBRIDGE_IMC_TAD3 0x3cad /* 15.5 */ > > There should be two of each (one on bus 7f, the other on bus ff). It is getting all 4 TAD devices (Broadwell). This is what I'm getting (from the PCI IDs that it is supposed to be on Broadwell): 00:05.0 System peripheral [0880]: Intel Corporation Xeon E7 v4/Xeon E5 v4/Xeon E3 v4/Xeon D Map/VTd_Misc/System Management [8086:6f28] (rev 01) 7f:0f.4 System peripheral [0880]: Intel Corporation Xeon E7 v4/Xeon E5 v4/Xeon E3 v4/Xeon D Caching Agent [8086:6ffc] (rev 01) 7f:0f.5 System peripheral [0880]: Intel Corporation Xeon E7 v4/Xeon E5 v4/Xeon E3 v4/Xeon D Caching Agent [8086:6ffd] (rev 01) 7f:12.0 System peripheral [0880]: Intel Corporation Xeon E7 v4/Xeon E5 v4/Xeon E3 v4/Xeon D Home Agent 0 [8086:6fa0] (rev 01) 7f:13.0 System peripheral [0880]: Intel Corporation Xeon E7 v4/Xeon E5 v4/Xeon E3 v4/Xeon D Memory Controller 0 - Target Address/Thermal/RAS [8086:6fa8] (rev 01) 7f:13.1 System peripheral [0880]: Intel Corporation Xeon E7 v4/Xeon E5 v4/Xeon E3 v4/Xeon D Memory Controller 0 - Target Address/Thermal/RAS [8086:6f71] (rev 01) 7f:13.2 System peripheral [0880]: Intel Corporation Xeon E7 v4/Xeon E5 v4/Xeon E3 v4/Xeon D Memory Controller 0 - Channel Target Address Decoder [8086:6faa] (rev 01) 7f:13.3 System peripheral [0880]: Intel Corporation Xeon E7 v4/Xeon E5 v4/Xeon E3 v4/Xeon D Memory Controller 0 - Channel Target Address Decoder [8086:6fab] (rev 01) 7f:13.4 System peripheral [0880]: Intel Corporation Xeon E7 v4/Xeon E5 v4/Xeon E3 v4/Xeon D Memory Controller 0 - Channel Target Address Decoder [8086:6fac] (rev 01) 7f:13.5 System peripheral [0880]: Intel Corporation Xeon E7 v4/Xeon E5 v4/Xeon E3 v4/Xeon D Memory Controller 0 - Channel Target Address Decoder [8086:6fad] (rev 01) 7f:13.7 System peripheral [0880]: Intel Corporation Xeon E7 v4/Xeon E5 v4/Xeon E3 v4/Xeon D DDRIO Global Broadcast [8086:6faf] (rev 01) 7f:16.0 System peripheral [0880]: Intel Corporation Xeon E7 v4/Xeon E5 v4/Xeon E3 v4/Xeon D Target Address/Thermal/RAS [8086:6f68] (rev 01) 80:05.0 System peripheral [0880]: Intel Corporation Xeon E7 v4/Xeon E5 v4/Xeon E3 v4/Xeon D Map/VTd_Misc/System Management [8086:6f28] (rev 01) ff:0f.4 System peripheral [0880]: Intel Corporation Xeon E7 v4/Xeon E5 v4/Xeon E3 v4/Xeon D Caching Agent [8086:6ffc] (rev 01) ff:0f.5 System peripheral [0880]: Intel Corporation Xeon E7 v4/Xeon E5 v4/Xeon E3 v4/Xeon D Caching Agent [8086:6ffd] (rev 01) ff:12.0 System peripheral [0880]: Intel Corporation Xeon E7 v4/Xeon E5 v4/Xeon E3 v4/Xeon D Home Agent 0 [8086:6fa0] (rev 01) ff:13.0 System peripheral [0880]: Intel Corporation Xeon E7 v4/Xeon E5 v4/Xeon E3 v4/Xeon D Memory Controller 0 - Target Address/Thermal/RAS [8086:6fa8] (rev 01) ff:13.1 System peripheral [0880]: Intel Corporation Xeon E7 v4/Xeon E5 v4/Xeon E3 v4/Xeon D Memory Controller 0 - Target Address/Thermal/RAS [8086:6f71] (rev 01) ff:13.2 System peripheral [0880]: Intel Corporation Xeon E7 v4/Xeon E5 v4/Xeon E3 v4/Xeon D Memory Controller 0 - Channel Target Address Decoder [8086:6faa] (rev 01) ff:13.3 System peripheral [0880]: Intel Corporation Xeon E7 v4/Xeon E5 v4/Xeon E3 v4/Xeon D Memory Controller 0 - Channel Target Address Decoder [8086:6fab] (rev 01) ff:13.4 System peripheral [0880]: Intel Corporation Xeon E7 v4/Xeon E5 v4/Xeon E3 v4/Xeon D Memory Controller 0 - Channel Target Address Decoder [8086:6fac] (rev 01) ff:13.5 System peripheral [0880]: Intel Corporation Xeon E7 v4/Xeon E5 v4/Xeon E3 v4/Xeon D Memory Controller 0 - Channel Target Address Decoder [8086:6fad] (rev 01) ff:13.7 System peripheral [0880]: Intel Corporation Xeon E7 v4/Xeon E5 v4/Xeon E3 v4/Xeon D DDRIO Global Broadcast [8086:6faf] (rev 01) ff:16.0 System peripheral [0880]: Intel Corporation Xeon E7 v4/Xeon E5 v4/Xeon E3 v4/Xeon D Target Address/Thermal/RAS [8086:6f68] (rev 01) Thanks, Mauro -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
