dove kernel requires mem=512M to use all available memory
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
Ubuntu CD Images |
Fix Released
|
Low
|
Loïc Minier | ||
flash-kernel (Ubuntu) |
Fix Released
|
Low
|
Loïc Minier | ||
Karmic |
Fix Released
|
Low
|
Loïc Minier |
Bug Description
As of 2.6.31-204-dove, dove kernels currently require mem=512M to use the full memory on the board. Memory autodetection on the dove seems to only see the first 284M of RAM. Here's the /proc/meminfo with no mem= option set
mcasadevall@
MemTotal: 284276 kB
MemFree: 24836 kB
Buffers: 24564 kB
Cached: 119900 kB
SwapCached: 0 kB
Active: 130572 kB
Inactive: 90888 kB
Active(anon): 101928 kB
Inactive(anon): 0 kB
Active(file): 28644 kB
Inactive(file): 90888 kB
Unevictable: 0 kB
Mlocked: 0 kB
SwapTotal: 1494004 kB
SwapFree: 1494004 kB
Dirty: 52 kB
Writeback: 0 kB
AnonPages: 77020 kB
Mapped: 30728 kB
Slab: 14756 kB
SReclaimable: 5300 kB
SUnreclaim: 9456 kB
PageTables: 1544 kB
NFS_Unstable: 0 kB
Bounce: 0 kB
WritebackTmp: 0 kB
CommitLimit: 1636140 kB
Committed_AS: 328892 kB
VmallocTotal: 704512 kB
VmallocUsed: 101888 kB
VmallocChunk: 598012 kB
With mem=512M
cat /pr mcasadevall@
MemTotal: 510740 kB
MemFree: 247344 kB
Buffers: 24176 kB
Cached: 122160 kB
SwapCached: 0 kB
Active: 133124 kB
Inactive: 91064 kB
Active(anon): 104368 kB
Inactive(anon): 0 kB
Active(file): 28756 kB
Inactive(file): 91064 kB
Unevictable: 0 kB
Mlocked: 0 kB
SwapTotal: 1494004 kB
SwapFree: 1494004 kB
Dirty: 40 kB
Writeback: 0 kB
AnonPages: 77876 kB
Mapped: 31956 kB
Slab: 14844 kB
SReclaimable: 5368 kB
SUnreclaim: 9476 kB
PageTables: 1556 kB
NFS_Unstable: 0 kB
Bounce: 0 kB
WritebackTmp: 0 kB
CommitLimit: 1749372 kB
Committed_AS: 361216 kB
VmallocTotal: 475136 kB
VmallocUsed: 101888 kB
VmallocChunk: 368636 kB
Changed in linux-mvl-dove (Ubuntu): | |
importance: | Undecided → High |
milestone: | none → ubuntu-9.10-beta |
tags: | added: armel |
Changed in linux-mvl-dove (Ubuntu): | |
importance: | High → Low |
milestone: | ubuntu-9.10-beta → none |
Changed in linux-mvl-dove (Ubuntu Karmic): | |
importance: | Medium → Low |
status: | New → Confirmed |
Changed in ubuntu-cdimage: | |
status: | Triaged → Fix Released |
assignee: | Michael Casadevall (mcasadevall) → Loïc Minier (lool) |
Bumping the priority to medium as we now have Dove Y1 boards which have 1GiB of RAM, and are being limited to 512MiB due to the command line arguments.