HI !
Kernel : 2.3.34
HW-Platform : DP-264 (Tsunami)
RAM : 1GB
SWAP : 512MB (4 x 128MB)
OS-Version : SuSE 6.3-AXP
Compileropts: SMP, DP-264, BSD-Disklabels (also tryed using Generic-Alpha)
I configured 4 swap partitions of 128MB each it shows 512MB RAM
if I look at /proc/meminfo all seems ok ,
total: used: free: shared: buffers: cached:
Mem: 1044414464 971636736 72777728 0 507904 33415168
Swap: 568295424 262144 568033280
MemTotal: 1019936 kB
MemFree: 71072 kB
MemShared: 0 kB
Buffers: 496 kB
Cached: 32632 kB
HighTotal: 0 kB
HighFree: 0 kB
LowTotal: 1019936 kB
LowFree: 71072 kB
SwapTotal: 554976 kB
SwapFree: 554720 kB
And top also seams ok at the top lines , but the memory percentage of used
memory indicates that it is assuming a total ram of 2GB ! and as soon as
*ANY* process uses more than the first 128MB of swap space , the box freezes
without any further comment.
4:14pm up 5:30, 7 users, load average: 1.00, 1.00, 1.00
58 processes: 56 sleeping, 2 running, 0 zombie, 0 stopped
CPU states: 64.7% user, 37.7% system, 98.6% nice, 0.0% idle
Mem: 1019936K av, 952352K used, 67584K free, 0K shrd, 576K buff
Swap: 554976K av, 256K used, 554720K free 34776K cached
PID USER PRI NI SIZE RSS SHARE STAT LIB %CPU %MEM TIME COMMAND
431 dhobbs 19 5 868M 868M 3408 R N 866M 98.6 43.5 249:36 vasp
586 root 2 0 1624 1624 1288 R 1520 3.9 0.0 0:00 top
the problem I guess is the BSD-disklable support.
Command (m for help):
BSD disklabel command (m for help):
8 partitions:
# size offset fstype [fsize bsize cpg]
a: 260096 4096 ext2 # (Cyl. 3 - 129)
b: 1576960 264192 ext2 # (Cyl. 130 - 899)
c: 4098048 1841152 ext2 # (Cyl. 900 - 2900)
d: 276480 5939200 swap # (Cyl. 2901 - 3035)
e: 278528 6215680 swap # (Cyl. 3036 - 3171)
f: 276480 6494208 swap # (Cyl. 3172 - 3306)
g: 278528 6770688 swap # (Cyl. 3307 - 3442)
h: 28794880 7049216 ext2 # (Cyl. 3443 - 17502)
BSD disklabel command (m for help):
output from dmesg:
------------------
....
Starting kswapd v1.6
....
Partition check:
sda: sda1 sda2 sda3 sda4 sda5 sda6 sda7 sda8
VFS: Mounted root (ext2 filesystem) readonly.
Freeing unused kernel memory: 208k freed
Adding Swap: 138232k swap-space (priority -1)
Adding Swap: 139256k swap-space (priority -2)
Adding Swap: 138232k swap-space (priority -3)
Adding Swap: 139256k swap-space (priority -4)
So my assumtion is that some part of the kernel is calculating the swapspace
with 278528*512k wich gives me the actual 139256 but other parts seam to
calculate 278528*1024k (..top %MEM ) and when this first swap partitions
physical end is reached at 128MB it messes up , accessing a swap area that
does not exist...
any hint where to start diging ??
are any problems with BSD-Disklabels as such known ??
or are my assumptions completly wrong ?
thx
hofrat
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