Odd size of Shared Memory

Gianluca Anzolin (g.anzolin@inwind.it)
Fri, 15 Jun 2001 10:34:50 +0200


I was trying 2.4.5-ac14 this morning. I issued some command to test
buffer and page cache behaviour

I run 2 cat /dev/hda > /dev/null and find / -name \* concurrently

When find finished I ran free and it gave me

fourier:~# free
total used free shared buffers cached
Mem: 126996 124104 2892 4294967212 98944 9148
-/+ buffers/cache: 16012 110984
Swap: 128480 3760 124720

fourier:~# cat /proc/meminfo
total: used: free: shared: buffers: cached:
Mem: 130043904 127098880 2945024 4294881280 100589568 9969664
Swap: 131563520 3850240 127713280
MemTotal: 126996 kB
MemFree: 2876 kB
MemShared: 4294967212 kB
Buffers: 98232 kB
Cached: 9736 kB
Active: 93716 kB
Inact_dirty: 12848 kB
Inact_clean: 1320 kB
Inact_target: 4 kB
HighTotal: 0 kB
HighFree: 0 kB
LowTotal: 126996 kB
LowFree: 2876 kB
SwapTotal: 128480 kB
SwapFree: 124720 kB

It seems a kernel bug to me, but it didn't hurt, my PC is working
without problems

Gianluca Anzolin
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