Bug 246675 - Kernel not seeing all RAM
Kernel not seeing all RAM
Status: CLOSED WONTFIX
Product: Fedora
Classification: Fedora
Component: kernel-xen-2.6 (Show other bugs)
6
i686 Linux
low Severity medium
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Assigned To: Juan Quintela
Fedora Extras Quality Assurance
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Depends On:
Blocks:
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Reported: 2007-07-03 16:25 EDT by Kanwar Ranbir Sandhu
Modified: 2008-02-26 21:53 EST (History)
3 users (show)

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Doc Type: Bug Fix
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Last Closed: 2008-02-26 21:53:14 EST
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RHEL 7.3 requirements from Atomic Host:
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Description Kanwar Ranbir Sandhu 2007-07-03 16:25:24 EDT
Description of problem:
I booted the Fedora Core 6 dom0 after upgrading the server's RAM to 3 GB (from 1
GB).  I used "free" to check how much RAM was available, and found that of the 3
GB of RAM, about 256 MB were missing.

Version-Release number of selected component (if applicable):
kernel-xen-2.6.20-1.2962.fc6

How reproducible:

Steps to Reproduce:
1. Installed kernel-xen-2.6.20-1.2962.fc6
2. Boot the machine
3. Use free to see how much RAM is available
  
Actual results:
[root@xenmaster ~]# free
             total       used       free     shared    buffers     cached
Mem:       2716672     234060    2482612          0      16988      66076
-/+ buffers/cache:     150996    2565676
Swap:       524280          0     524280


Expected results:
Mem:       3145728 


Additional info:
- Dell PowerEdge 1600SC
- Running latest BIOS and firmware for all components
- Fedora Core 6 dom0, all updates applied

dmesg shows this:
Memory: 2874636k/2987900k available (2135k kernel code, 104060k reserved, 1130k
data, 176k init, 2242436k highmem)
Comment 1 Kanwar Ranbir Sandhu 2007-07-03 20:36:27 EDT
My server's cpuinfo, in case someone requires this for better trouble shooting:

processor       : 0
vendor_id       : GenuineIntel
cpu family      : 15
model           : 2
model name      : Intel(R) Xeon(TM) CPU 2.40GHz
stepping        : 9
cpu MHz         : 2669.992
cache size      : 512 KB
fdiv_bug        : no
hlt_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 2
wp              : yes
flags           : fpu tsc msr pae mce cx8 apic mtrr mca cmov pat pse36 clflush
dts acpi mmx fxsr sse sse2 ss ht tm pbe up cid xtpr
bogomips        : 6671.13
clflush size    : 64
Comment 2 Chris Lalancette 2008-02-26 21:53:14 EST
Fedora Core 6 is now end-of-life, so closing this bug out.  Please test again
with Fedora 7 or later, and open a new bug if your problem persists.

Thanks.

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