[Expired for linux (Ubuntu) because there has been no activity for 60
days.]
** Changed in: linux (Ubuntu)
Status: Incomplete => Expired
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https://bugs.launchpad.net/bugs/386554
Title:
System behaved as if OOM when it had plenty to spare
Status in “linux” package in Ubuntu:
Expired
Bug description:
Had the weirdest behaviour today, current karmic kernel. I haven't
got a swap partition or swap file configured, because I was playing
with swapd and stuff earlier and hadn't turned them back on again.
The system suddenly became extremely slow and unresponsive, with
massive amounts of disk activity
The thing is, here was the output of free at the time:
total used free shared buffers cached
Mem: 1534944 1490160 44784 0 18396 1078164
-/+ buffers/cache: 393600 1141344
Swap: 0 0 0
In other words, while it had actually 44MB free (which is still quite
a lot, even though I was doing things in Firefox) - there was 1GB of
cached pages sitting there - and I was doing much so most of them
can't have been dirty!
So why was the machine even touching the disk? It should have been
able to simply purge non-dirty pages from its cache and carry on
Or am I grossly missing something?
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