Hi,
I am running linux kernel 2.6 on an embedded system. In my
application I
have executed the following command
system ("cat
/proc/meminfo")
I see the
following
MemTotal: 13864
kB
MemFree:
664
kB
Buffers:
1588
kB
Cached:
5452 kB
SwapCached:
0 kB
Active:
5280 kB
Inactive: 3720
kB
HighTotal:
0
kB
HighFree:
0 kB
LowTotal: 13864
kB
LowFree:
664
kB
SwapTotal:
0
kB
SwapFree:
0
kB
Dirty:
0
kB
Writeback:
0 kB
Mapped:
4664
kB
Slab:
1596 kB
CommitLimit: 6932
kB
Committed_AS: 22300
kB
PageTables: 172
kB
VmallocTotal: 630784 kB
VmallocUsed:
262576 kB
VmallocChunk: 366588 kB
Then subsequently I
am inserting one module i get the
"page allocation failure"
and I
get the following error message tho'
kernel...
***************************************************************
insmod: page allocation failure. order:5,
mode:0xd0
Mem-info:
DMA per-cpu:
cpu 0 hot: low 2,
high 6, batch 1 used:5
cpu 0 cold: low 0, high 2, batch 1
used:1
Normal per-cpu: empty
HighMem per-cpu: empty
Free
pages: 1216kB (0kB
HighMem)
Active:1494 inactive:674 dirty:0 writeback:0 unstable:0 free:304
slab:401
mapped:1259 pagetables:46
DMA free:1216kB min:512kB low:640kB
high:768kB active:5976kB inactive:2696kB
present:16384kB pages_scanned:0
all_unreclaimable? no
lowmem_reserve[]: 0 0 0
Normal free:0kB min:0kB
low:0kB high:0kB active:0kB inactive:0kB present:0kB
pages_scanned:0
all_unreclaimable? no
lowmem_reserve[]: 0 0 0
HighMem free:0kB
min:128kB low:160kB high:192kB active:0kB inactive:0kB
present:0kB
pages_scanned:0 all_unreclaimable? no
lowmem_reserve[]: 0 0 0
DMA:
18*4kB 51*8kB 28*16kB 1*32kB 2*64kB 1*128kB 0*256kB 0*512kB 0*1024kB
=
1216kB
Normal: empty
HighMem: empty
Swap cache: add 0, delete
0, find 0/0, race 0+0
Free swap = 0kB
Total swap = 0kB
Free
swap:
0kB
4096 pages of RAM
382 free pages
701 reserved pages
401 slab
pages
1570 pages shared
0 pages swap
cached
***************************************************************
Now
I again run the command
system ("cat /proc/meminfo")
and now I see the
following:
MemTotal: 13864
kB
MemFree:
1524
kB
Buffers:
1244
kB
Cached:
5224 kB
SwapCached:
0 kB
Active:
5776 kB
Inactive: 2672
kB
HighTotal:
0
kB
HighFree:
0 kB
LowTotal: 13864
kB
LowFree: 1524
kB
SwapTotal:
0
kB
SwapFree:
0
kB
Dirty:
0
kB
Writeback:
0 kB
Mapped:
4676
kB
Slab:
1604 kB
CommitLimit: 6932
kB
Committed_AS: 22168
kB
PageTables: 172
kB
VmallocTotal: 630784 kB
VmallocUsed:
262560 kB
VmallocChunk: 366588 kB
Is there any clue? I
have some 650 KB free before inserting the module and
after that some 1.5
MB free memory space, and still I am not able to insert
the
module.
Why it's so? Any help will be highly
appreciated.
~Abu.
