sur un serveur j'ai ce message au boot , à priori pas de soucis mais j aimerai comprendre.
je suis pas sur la machine mais le message est :
ERST: cant not request [une zone mémoire ]
sur le net j 'ai rien trouvé a part
GRUB_CMDLINE_LINUX_DEFAULT="quiet erst_disable"
je ne vai pas désactiver quelque chose dont je ne sait pas a quoi elle sert.
c est un probleme sur linux (vu les messages sur le net )
dans certain cas ça bug le démarrage du noyau.
si quelqu un peu expliquer ce qu 'est ERST et a quoi il sert .
j'ai l option IOMMU du bios sur "ENABLE" (carte serveur + opteron 6320 ) qui réserve une zone mémoire (spécifique a amd)
j'ai de la mémoire UDIMM non registered non ecc (que je vai remplacé bientot par de l ecc non registered ,ça coute la peau des fesses )
voici le log du serveur :
Dec 19 17:10:40 debian10 kernel: [ 1.831868] ERST: Can not request [mem 0xd7e9e000-0xd7e9ffff] for ERST.
Dec 19 17:10:40 debian10 kernel: [ 1.831996] GHES: APEI firmware first mode is enabled by APEI bit and WHEA _OSC.
Dec 19 17:10:40 debian10 kernel: [ 1.832088] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
Dec 19 17:10:40 debian10 kernel: [ 1.832561] Linux agpgart interface v0.103
Dec 19 17:10:40 debian10 kernel: [ 1.832614] AMD IOMMUv2 driver by Joerg Roedel <jroedel@suse.de>
Dec 19 17:10:40 debian10 kernel: [ 1.832615] AMD IOMMUv2 functionality not available on this system
juste avant le message ERST un extrait du log :
Dec 19 17:10:40 debian10 kernel: [ 0.390187] NET: Registered protocol family 1
Dec 19 17:10:40 debian10 kernel: [ 1.449207] pci 0000:01:00.0: Video device with shadowed ROM
Dec 19 17:10:40 debian10 kernel: [ 1.449217] PCI: CLS 64 bytes, default 64
Dec 19 17:10:40 debian10 kernel: [ 1.449287] Unpacking initramfs...
Dec 19 17:10:40 debian10 kernel: [ 1.738680] Freeing initrd memory: 15916K (ffff8800360da000 - ffff880037065000)
Dec 19 17:10:40 debian10 kernel: [ 1.820554] iommu: Adding device 0000:00:00.0 to group 0
Dec 19 17:10:40 debian10 kernel: [ 1.820981] iommu: Adding device 0000:00:02.0 to group 1
Dec 19 17:10:40 debian10 kernel: [ 1.821414] iommu: Adding device 0000:00:09.0 to group 2
Dec 19 17:10:40 debian10 kernel: [ 1.821841] iommu: Adding device 0000:00:0a.0 to group 3
Dec 19 17:10:40 debian10 kernel: [ 1.822263] iommu: Adding device 0000:00:11.0 to group 4
Dec 19 17:10:40 debian10 kernel: [ 1.822701] iommu: Adding device 0000:00:12.0 to group 5
Dec 19 17:10:40 debian10 kernel: [ 1.822718] iommu: Adding device 0000:00:12.1 to group 5
Dec 19 17:10:40 debian10 kernel: [ 1.822736] iommu: Adding device 0000:00:12.2 to group 5
Dec 19 17:10:40 debian10 kernel: [ 1.823173] iommu: Adding device 0000:00:13.0 to group 6
Dec 19 17:10:40 debian10 kernel: [ 1.823190] iommu: Adding device 0000:00:13.1 to group 6
Dec 19 17:10:40 debian10 kernel: [ 1.823208] iommu: Adding device 0000:00:13.2 to group 6
Dec 19 17:10:40 debian10 kernel: [ 1.823631] iommu: Adding device 0000:00:14.0 to group 7
Dec 19 17:10:40 debian10 kernel: [ 1.823634] AMD-Vi: Using IVRS reported alias 00:11.0 for device 0000:00:14.1[1002:439c], kernel reported alias 00:14.1
Dec 19 17:10:40 debian10 kernel: [ 1.823635] AMD-Vi: Added PCI DMA alias 11.0 for 0000:00:14.1
Dec 19 17:10:40 debian10 kernel: [ 1.823646] iommu: Adding device 0000:00:14.1 to group 4
Dec 19 17:10:40 debian10 kernel: [ 1.824069] iommu: Adding device 0000:00:14.3 to group 8
Dec 19 17:10:40 debian10 kernel: [ 1.824491] iommu: Adding device 0000:00:14.4 to group 9
Dec 19 17:10:40 debian10 kernel: [ 1.824915] iommu: Adding device 0000:00:14.5 to group 10
Dec 19 17:10:40 debian10 kernel: [ 1.825353] iommu: Adding device 0000:01:00.0 to group 11
Dec 19 17:10:40 debian10 kernel: [ 1.825807] iommu: Adding device 0000:02:00.0 to group 12
Dec 19 17:10:40 debian10 kernel: [ 1.826238] iommu: Adding device 0000:03:00.0 to group 13
Dec 19 17:10:40 debian10 kernel: [ 1.826239] AMD-Vi: Found IOMMU at 0000:00:00.2 cap 0x40
Dec 19 17:10:40 debian10 kernel: [ 1.826240] AMD-Vi: Interrupt remapping enabled
Dec 19 17:10:40 debian10 kernel: [ 1.826339] AMD-Vi: Lazy IO/TLB flushing enabled
Dec 19 17:10:40 debian10 kernel: [ 1.828784] perf: AMD NB counters detected
Dec 19 17:10:40 debian10 kernel: [ 1.828894] microcode: CPU0: patch_level=0x06000822
Dec 19 17:10:40 debian10 kernel: [ 1.828903] microcode: CPU1: patch_level=0x06000822
Dec 19 17:10:40 debian10 kernel: [ 1.828909] microcode: CPU2: patch_level=0x06000822
Dec 19 17:10:40 debian10 kernel: [ 1.828917] microcode: CPU3: patch_level=0x06000822
Dec 19 17:10:40 debian10 kernel: [ 1.828932] microcode: CPU4: patch_level=0x06000822
Dec 19 17:10:40 debian10 kernel: [ 1.828943] microcode: CPU5: patch_level=0x06000822
Dec 19 17:10:40 debian10 kernel: [ 1.828955] microcode: CPU6: patch_level=0x06000822
Dec 19 17:10:40 debian10 kernel: [ 1.828966] microcode: CPU7: patch_level=0x06000822
Dec 19 17:10:40 debian10 kernel: [ 1.829077] microcode: Microcode Update Driver: v2.00 <tigran@aivazian.fsnet.co.uk>, Peter Oruba
Dec 19 17:10:40 debian10 kernel: [ 1.829090] LVT offset 0 assigned for vector 0x400
Dec 19 17:10:40 debian10 kernel: [ 1.829123] perf: AMD IBS detected (0x000000ff)
Dec 19 17:10:40 debian10 kernel: [ 1.829912] futex hash table entries: 4096 (order: 6, 262144 bytes)
Dec 19 17:10:40 debian10 kernel: [ 1.830042] audit: initializing netlink subsys (disabled)
Dec 19 17:10:40 debian10 kernel: [ 1.830064] audit: type=2000 audit(1450541428.648:1): initialized
Dec 19 17:10:40 debian10 kernel: [ 1.830508] HugeTLB registered 2 MB page size, pre-allocated 0 pages
c'est peut etre juste un message de notification
ps:j'ai l option C6 dans le bios désactivé (pour l hibernation je pense ) , sur la doc du bios il l appelle EUP support (il parle de s5 pour enabled to for EUP )]]>