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Subjectweird memory related problems, negative memory usage or fake memory usage?
Hi all,

after upgrade from 2.4.10pre8 to 2.4.10 I have weird problems, Xfree
sometimes shows up with 99.9% memory in top (on a box with 512 mb), and in
ps axl it has 4294989036 in the RSS column. When this happens the box starts
to kill some processes, starts heavily swapping (top reports > 400MB in the
cache, but the machine is heavily swapping!!!) and is completely unusable.

The problems is triggered when I start edonkey, some filesharing program
that creates checksums of large files (a couple of > 700Mb files).

Since this makes the machine completely unusable, and since it is not
happening on 2.4.10pre8 I guess it is a bug ;-)

This is a top snapshot:

46 processes: 43 sleeping, 3 running, 0 zombie, 0 stopped
CPU states: 3.8% user, 1.2% system, 94.6% nice, 0.4% idle
Mem: 514032K total, 511436K used, 2596K free, 1244K buffers
Swap: 358808K total, 10928K used, 347880K free, 466072K cached

PID USER PRI NI SIZE RSS SHARE STAT %CPU %MEM TIME COMMAND
253 olivier 19 18 300 196 124 R N 52.9 0.0 119:50 dnetc
1274 root 14 0 5940 5940 872 R 33.7 1.1 0:00 xsetbg
1262 root 5 -10 50764 -1M 1320 S < 2.7 99.9 0:01 XFree86
1263 root 9 0 1528 1492 1204 S 2.7 0.2 0:00 xdm
1267 root 11 0 980 976 776 R 2.7 0.1 0:00 top
1270 root 9 0 1016 1012 820 S 0.9 0.1 0:00 Xsetup_0
1 root 8 0 104 56 36 S 0.0 0.0 0:04 init
2 root 9 0 0 0 0 SW 0.0 0.0 0:00 keventd
3 root 9 0 0 0 0 SW 0.0 0.0 0:00 kapm-idled
4 root 19 19 0 0 0 SWN 0.0 0.0 0:00 ksoftirqd_CPU0
5 root 9 0 0 0 0 SW 0.0 0.0 0:01 kswapd
6 root 9 0 0 0 0 SW 0.0 0.0 0:00 bdflush
7 root 9 0 0 0 0 SW 0.0 0.0 0:00 kupdated
8 root 9 0 0 0 0 SW 0.0 0.0 0:00 kreiserfsd

the ps axl for X then is

100 0 1262 1260 5 -10 52408 4294965424 select S< ? 0:01
/usr/X11R6/bin/X vt7 -dpi 100 -nolisten tcp -auth /var/lib/xdm/authdir

regards,
Olivier
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