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本帖最后由 Orochi_zy 于 2010-12-29 14:25 编辑
1。给一批次的IBM X3850X5 M8L系列安装SUSE 11系统碰到的问题很奇怪
先给出机器配置:CPU是4*E7520 1.86GHz
内存:8*2GB
安装SUSE 11 X86
2。安装系统过程没有问题,但是同一批12台机器,装完之后使用free -m top 查看,发现都只有1880的总内存
3. 机器是最近刚买的,还没装过系统。
4。尝试使用SUSE 11 64位安装,在安装启动界面有一个MEMORY TEST,test的结果还是只能认到2G,就没有继续安装。
启动BIOS里却明明白白的可以看到16G的内存。
换RHEL 5U4系统安装,发现安装过程中也只认到2G,于是放弃。
5。登录机器查看,free -m more /proc/meminfo top 看到的均是2G的样子,但使用dmidecode -t memory看到的是8根2G的内存。
6。同一批次,有IBM X3850X5 M9L机器,配置内存是:8*4G的,看到的也是2G的内存。
以下是在配置如 1 给出的机器上运行命令的结果:
求解!
linux-oxwx:~ # dmesg |grep -i mem
1144MB HIGHMEM available.
896MB LOWMEM available.
(9 early reservations) ==> bootmem [0000000000 - 0038000000]
Reserving 128MB of memory at 16MB for crashkernel (System RAM: 2040MB)
HighMem 0x00038000 -> 0x0007f800
free_area_init_node: node 0, pgdat c050a280, node_mem_map c9000000
HighMem zone: 288680 pages, LIFO batch:31
PM: Registered nosave memory: 000000000009b000 - 000000000009c000
PM: Registered nosave memory: 000000000009c000 - 00000000000a0000
PM: Registered nosave memory: 00000000000a0000 - 00000000000e0000
PM: Registered nosave memory: 00000000000e0000 - 0000000000100000
Memory: 1918384k/2088960k available (2297k kernel code, 162988k reserved, 1925k data, 280k init, 1165016k highmem)
virtual kernel memory layout:
lowmem : 0xc0000000 - 0xf8000000 ( 896 MB)
Initializing cgroup subsys memory
system 00:08: iomem range 0xfed00000-0xfed003ff has been reserved
pci 0000:00:01.0: MEM window: 0x92000000-0x95ffffff
pci 0000:00:03.0: MEM window: 0x97a00000-0x97afffff
pci 0000:00:05.0: MEM window: disabled
pci 0000:00:07.0: MEM window: disabled
pci 0000:00:09.0: MEM window: 0x97900000-0x979fffff
pci 0000:00:1c.0: MEM window: disabled
pci 0000:02:00.0: MEM window: 0x97000000-0x978fffff
pci 0000:00:1c.4: MEM window: 0x97000000-0x978fffff
pci 0000:00:1e.0: MEM window: disabled
pci 0000:80:00.0: MEM window: disabled
pci 0000:80:01.0: MEM window: disabled
pci 0000:80:03.0: MEM window: disabled
pci 0000:80:07.0: MEM window: disabled
pci 0000:80:09.0: MEM window: disabled
Freeing initrd memory: 6065k freed
highmem bounce pool size: 64 pages
Freeing unused kernel memory: 280k freed
ehci_hcd 0000:00:1a.7: irq 19, io mem 0x97b21000
ehci_hcd 0000:00:1d.7: irq 17, io mem 0x97b20000
Modules linked in: kvm_intel(N+) mii rtc_lib kvm(N) sg usbhid hid ff_memless uhci_hcd ehci_hcd usbcore sd_mod crc_t10dif edd ext3 mbcache jbd fan ide_pci_generic ide_core ata_generic ata_piix libata xen_platform_pci cdrom dock thermal processor thermal_sys hwmon megaraid_sas scsi_mod
eth0: Broadcom NetXtreme II BCM5709 1000Base-T (C0) PCI Express found at mem 92000000, IRQ 28, node addr e4:1f:13:e3:66:dc
eth1: Broadcom NetXtreme II BCM5709 1000Base-T (C0) PCI Express found at mem 94000000, IRQ 40, node addr e4:1f:13:e3:66:de
linux-oxwx:~ # dmidecode -t memory |grep 2048 这里因为太多输出,就省略了
Size: 2048 MB
Size: 2048 MB
Size: 2048 MB
Size: 2048 MB
Size: 2048 MB
Size: 2048 MB
Size: 2048 MB
Size: 2048 MB
linux-oxwx:~ # free -m
total used free shared buffers cached
Mem: 1880 1536 343 0 430 984
-/+ buffers/cache: 121 1759
Swap: 4094 0 4094 |
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