Hello All,
I noticed that my CentOS 6.5 system reports that I only have about 10.9 GiB of RAM when I actually have 16384M. I have already tried adding mem=xxM to the end of the kernel line in grub.conf. The result is the same. Any suggestions?
Joe
On 2/16/2014 9:38 PM, Joseph Godino wrote:
I noticed that my CentOS 6.5 system reports that I only have about 10.9 GiB of RAM when I actually have 16384M. I have already tried adding mem=xxM to the end of the kernel line in grub.conf. The result is the same. Any suggestions?
this is a 64bit system? where are you getting that memory report from, the `free` command ?
dmidecode -t 17 #should list all the memory DIMMs in the system.
I'd also watch the bootup messages (or review them with dmesg shortly after the system has started).
On Sun, 2014-02-16 at 21:48 -0800, John R Pierce wrote:
On 2/16/2014 9:38 PM, Joseph Godino wrote:
I noticed that my CentOS 6.5 system reports that I only have about 10.9 GiB of RAM when I actually have 16384M. I have already tried adding mem=xxM to the end of the kernel line in grub.conf. The result is the same. Any suggestions?
this is a 64bit system? where are you getting that memory report from, the `free` command ?
dmidecode -t 17 #should list all the memory DIMMs in the system.
I'd also watch the bootup messages (or review them with dmesg shortly after the system has started).
Yes, this is a 64-bit system.
dmidecode -t 17 #does list all the installed DIMMs
I was getting the information from cat /proc/meminfo
Thanks.
Joe
I noticed that my CentOS 6.5 system reports that I only have about 10.9 GiB of RAM when I actually have 16384M. I have already tried adding mem=xxM to the end of the kernel line in grub.conf. The result is the same. Any suggestions?
Is this a Dell or other major server vendor system that happens to have memory sparing turned on in the BIOS? I assume that other major server vendors do something like this as well where they save one dimm per bank in case of a dimm failure, the faulty one is switched out for the spare.
Barry
On Mon, 2014-02-17 at 00:09 -0600, Barry Brimer wrote:
I noticed that my CentOS 6.5 system reports that I only have about 10.9 GiB of RAM when I actually have 16384M. I have already tried adding mem=xxM to the end of the kernel line in grub.conf. The result is the same. Any suggestions?
Is this a Dell or other major server vendor system that happens to have memory sparing turned on in the BIOS? I assume that other major server vendors do something like this as well where they save one dimm per bank in case of a dimm failure, the faulty one is switched out for the spare.
Barry
CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
No, I built the machine myself. It has an ASUS motherboard. I don't think I have any DIMMs turned off.
Thanks.
Joe
On Mon, 2014-02-17 at 00:09 -0600, Barry Brimer wrote:
I noticed that my CentOS 6.5 system reports that I only have about 10.9 GiB of RAM when I actually have 16384M. I have already tried adding mem=xxM to the end of the kernel line in grub.conf. The result is the same. Any suggestions?
<snip>
No, I built the machine myself. It has an ASUS motherboard. I don't think I have any DIMMs turned off.
What is the output of "grep line /sys/devices/system/memory/*/state" ??
If any of them show offline: echo online > /sys/devices/system/memory/memory[number]/state
Barry
On Mon, 2014-02-17 at 00:33 -0600, Barry Brimer wrote:
On Mon, 2014-02-17 at 00:09 -0600, Barry Brimer wrote:
I noticed that my CentOS 6.5 system reports that I only have about 10.9 GiB of RAM when I actually have 16384M. I have already tried adding mem=xxM to the end of the kernel line in grub.conf. The result is the same. Any suggestions?
<snip> > > No, I built the machine myself. It has an ASUS motherboard. I don't > think I have any DIMMs turned off.
What is the output of "grep line /sys/devices/system/memory/*/state" ??
If any of them show offline: echo online > /sys/devices/system/memory/memory[number]/state
Barry _______________________________________________ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
All show online.
Thanks.
Joe
On Mon, 2014-02-17 at 00:33 -0600, Barry Brimer wrote:
On Mon, 2014-02-17 at 00:09 -0600, Barry Brimer wrote:
I noticed that my CentOS 6.5 system reports that I only have about 10.9 GiB of RAM when I actually have 16384M. I have already tried adding mem=xxM to the end of the kernel line in grub.conf. The result is the same. Any suggestions?
<snip>
Can you post the entire output of cat /proc/meminfo?
On Mon, 2014-02-17 at 00:46 -0600, Barry Brimer wrote:
On Mon, 2014-02-17 at 00:33 -0600, Barry Brimer wrote:
On Mon, 2014-02-17 at 00:09 -0600, Barry Brimer wrote:
I noticed that my CentOS 6.5 system reports that I only have about 10.9 GiB of RAM when I actually have 16384M. I have already tried adding mem=xxM to the end of the kernel line in grub.conf. The result is the same. Any suggestions?
<snip>
Can you post the entire output of cat /proc/meminfo? _______________________________________________ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
The output follows:
MemTotal: 11479560 kB MemFree: 9721072 kB Buffers: 220512 kB Cached: 646448 kB SwapCached: 0 kB Active: 634432 kB Inactive: 687528 kB Active(anon): 455400 kB Inactive(anon): 4148 kB Active(file): 179032 kB Inactive(file): 683380 kB Unevictable: 0 kB Mlocked: 0 kB SwapTotal: 8216568 kB SwapFree: 8216568 kB Dirty: 468 kB Writeback: 0 kB AnonPages: 457096 kB Mapped: 152984 kB Shmem: 4488 kB Slab: 255224 kB SReclaimable: 166276 kB SUnreclaim: 88948 kB KernelStack: 3856 kB PageTables: 33244 kB NFS_Unstable: 0 kB Bounce: 0 kB WritebackTmp: 0 kB CommitLimit: 13956348 kB Committed_AS: 1460532 kB VmallocTotal: 34359738367 kB VmallocUsed: 183500 kB VmallocChunk: 34359540732 kB HardwareCorrupted: 0 kB AnonHugePages: 233472 kB HugePages_Total: 0 HugePages_Free: 0 HugePages_Rsvd: 0 HugePages_Surp: 0 Hugepagesize: 2048 kB DirectMap4k: 32768 kB DirectMap2M: 15949824 kB
can you reboot this system, then paste a copy of dmesg immediately after it finishes booting ?
On Mon, Feb 17, 2014 at 12:43 PM, Joseph Godino jgodino5@gmail.com wrote:
On Sun, 2014-02-16 at 22:49 -0800, John R Pierce wrote:
can you reboot this system, then paste a copy of dmesg immediately after it finishes booting ?
I found it. Stupid me. I reserved 4096M for crash dumps.
On x86 and x86_64, 128 MB is more than enough for crash dumps.
Regards, Sachin
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Barry Brimer -
John R Pierce -
Joseph Godino -
Sachin Divekar