[Pkg-xen-devel] Bug#734761: xen-system-amd64: "XEN kernel detects 3GB RAM instead of 4GB"
Maarten de Wolff
noc at plinq.nl
Thu Jan 9 16:37:54 UTC 2014
Package: xen-system-amd64
Version: 4.1.4-3+deb7u1
Severity: normal
The xen kernel detects 3GB of memory instead of the full 4GB. When using the "normal" kernel 4GB is detected.
On boot the 4GB is detected:
root at ams-tc1-xen27:~# dmesg |grep Mem
[ 0.000000] Memory: 3226132k/4980736k available (3426k kernel code, 788180k absent, 966424k reserved, 3312k data, 576k init)
But only 3GB is used:
root at ams-tc1-xen27:~# cat /proc/meminfo
MemTotal: 3259444 kB
MemFree: 3006884 kB
Buffers: 12012 kB
Cached: 141592 kB
SwapCached: 0 kB
Active: 94636 kB
Inactive: 106156 kB
Active(anon): 47208 kB
Inactive(anon): 860 kB
Active(file): 47428 kB
Inactive(file): 105296 kB
Unevictable: 48 kB
Mlocked: 48 kB
SwapTotal: 3919864 kB
SwapFree: 3919864 kB
Dirty: 0 kB
Writeback: 0 kB
AnonPages: 47256 kB
Mapped: 9548 kB
Shmem: 876 kB
Slab: 23628 kB
SReclaimable: 12628 kB
SUnreclaim: 11000 kB
KernelStack: 792 kB
PageTables: 2440 kB
NFS_Unstable: 0 kB
Bounce: 0 kB
WritebackTmp: 0 kB
CommitLimit: 5549584 kB
Committed_AS: 153956 kB
VmallocTotal: 34359738367 kB
VmallocUsed: 38532 kB
VmallocChunk: 34359697148 kB
HardwareCorrupted: 0 kB
AnonHugePages: 0 kB
HugePages_Total: 0
HugePages_Free: 0
HugePages_Rsvd: 0
HugePages_Surp: 0
Hugepagesize: 2048 kB
DirectMap4k: 4193024 kB
DirectMap2M: 0 kB
-- System Information:
Debian Release: 7.3
APT prefers stable-updates
APT policy: (500, 'stable-updates'), (500, 'stable')
Architecture: amd64 (x86_64)
Kernel: Linux 3.2.0-4-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Versions of packages xen-system-amd64 depends on:
ii xen-hypervisor-4.1-amd64 4.1.4-3+deb7u1
ii xen-utils-4.1 4.1.4-3+deb7u1
xen-system-amd64 recommends no packages.
xen-system-amd64 suggests no packages.
-- no debconf information
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