On Wed, 31 Jan 2001, David Ford wrote:

> The dumps are large so they are located at http://stuph.org/VM/.

I can't seem to resolve this domain ...

> Here's the story.  I boot and startx, I load xmms and netscape
> to eat away memory.  When free buffers/cache falls below 7M the
> system stalls and the only recovery is sysrq-E or reboot.  At
> the moment of stall the disk will grind continuously for about
> 25 to 30 minutes then go silent.  At this point in time the only
> recovery is reboot, sysrq-E won't work.

> Kernel 2.4.1, with reiserfs, devfs, no patches applied.

Between 2.4.0 and 2.4.1, a few VM changes were made by
Linus and Marcelo. These are good changes, but they seem
to need a little bit of tuning in related code to get
system behaviour right again.

I'm working on these changes and should have a (few)
rebalancing patches out soon to fix the performance
problem.

About the system hanging completely, I wonder if it goes
away by pressing sysrq-S (sync all disks). If it does,
maybe Reiserfs was blocking all the pages in the inactive
list from being written because one of the active pages
(not a replacement candidate) needed to be written out
first?  Or does the Reiserfs ->writepage() function handle
this?

regards,

Rik
--
Virtual memory is like a game you can't win;
However, without VM there's truly nothing to lose...

                http://www.surriel.com/
http://www.conectiva.com/       http://distro.conectiva.com.br/

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