** This bug is no longer a duplicate of bug 620074
Thrashing turns system unusable
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https://bugs.launchpad.net/bugs/27441
Title:
Prevent extended periods of thrashing
To
*** This bug is a duplicate of bug 620074 ***
https://bugs.launchpad.net/bugs/620074
Sorry for the delay... I opened a new bug report on this, bug #620074.
** This bug has been marked a duplicate of bug 620074
Thrashing turns system unusable
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Prevent extended periods of thrashing
Hi! I'm the original reporter. This problem still occurs with new
kernels, otherwise I would have closed the bug. Tim Gardner, would you
please explain whether your last remark applies to me too?
I understand that there's no real momentum behind getting this fixed,
it's probably not simple
Ole - please start a new bug (using 'ubuntu-bug linux'). There are any
number of reasons why your disk can start thrashing. _Every_ kernel has
been different in that regard since about 2.6.27 with all of the changes
in CPU and I/O scheduler.
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Prevent extended periods of thrashing
Tim, I don't think the question is WHY the thrashing starts. I
understand that trying to use more than the physical RAM installed on
your system will generate paging.
The problem as I see it is that Linux seems to become unusable once
thrashing starts. I will open a new bug about this, but I
This is starting to be one of those dog pile bugs. I want each of you
guys to start your own bug report using 'ubuntu-bug linux'. While the
symptoms may appear similar, the root causes could be quite different.
Not to mention the fact that this bug was reported against a 5 year old
kernel.
**
I have landed here because I have a 2GB (MAX possible) system which has
gone into swap thrash mode. I know what has done it as I have launched
about 15 python scripts, however it would seem that one cure would be to
slow down the multitasking - at present it seems that a process is
scheduled,
Just wondering about the status of this: is anyone looking at the
problem? I'd be curious for a comment on how hard this is to fix, and if
they're any plans for fixing it soon. Thanks!
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Prevent extended periods of thrashing
https://bugs.launchpad.net/bugs/27441
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** Tags removed: kernel-candidate
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Prevent extended periods of thrashing
https://bugs.launchpad.net/bugs/27441
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I suspect I have seem similar behaviour on Lucid, and i think update-
locatedb is the trigger in my case.
** Tags added: kernel-candidate kernel-reviewed
** Tags removed: kernel-needs-review
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Prevent extended periods of thrashing
https://bugs.launchpad.net/bugs/27441
You received this bug
It's indeed very easy to get thrashing---in my case, 2GB RAM running a
couple of memory-intensive problems like Mathematica and Gimp
Resynthesizer at the same time makes the system almost completely
unresponsive. I'm talking about Lucid Lynx with all the updates made.
I think for a desktop
** Tags added: kernel-fs kernel-needs-review
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Prevent extended periods of thrashing
https://bugs.launchpad.net/bugs/27441
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This happens to me quite frequently. When it does, it starts in the
morning at about 7 am, and I have no idea at all what's causing it. I
don't have any cronjobs scheduled for that time. It started years ago,
some time after I switched to using hard disk encryption. I've never
seen the problem
When this bug hits, I feel like I am using Windows 3.1 again. The whole
point of switching from cooperative to pre-emptive multitasking was to
keep poorly-written apps from bringing down the whole system.
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Prevent extended periods of thrashing
https://bugs.launchpad.net/bugs/27441
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** Changed in: linux (Ubuntu)
Importance: Undecided = Medium
** Changed in: linux (Ubuntu)
Status: New = Triaged
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Prevent extended periods of thrashing
https://bugs.launchpad.net/bugs/27441
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** Summary changed:
- Thrashing hell
+ Prevent extended periods of thrashing
** Changed in: linux (Ubuntu)
Status: Incomplete = New
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Prevent extended periods of thrashing
https://bugs.launchpad.net/bugs/27441
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