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Kernel "dead pauses" since 2.6.5-1.332



On 23.04.2004 18:03, Josh Boyer wrote:

On Fri, 2004-04-23 at 10:41, Michael A. Peters wrote:

Twice now - X11 suddenly stops responding, or is extremely slow in
responding. The mouse works just fine - so it's not a refresh issue, but
the window manager/desktop (gnome) takes forever to respond to clicks.

Switching to a virtual console is instantaneous - but there is a delay
in log in. But once logged in, the cli is snappy - but the problem
persists in X11.

Yeah, I am seeing pretty much the same thing, but it's not localized to X11. Some other random things are seeing "pauses", like setfiles. And I have an ATI Radeon, so at least it isn't a problem with one particular graphics card.

At first I thought the behavior was SELinux related, but it still
happens when I boot with SELinux disabled.  Haven't seen anything in any
of the logs though.  If I go back a couple of kernels, the problem seems
to go away.

I am seeing something like this too. The way it looks for me is as if the hard drive just stops responding - everything that wants disk access freezes, but everything else keeps working normally. Once in a while the disk would "unfreeze", I would see a lot of disk activity, and then another freeze (for a periods varying from a few seconds to couple of minutes).


These freezes always start when something very disk-intensive is running (slocate's updatedb, "setfiles check", etc). Quitting Mozilla sometimes helps get rid of them for a while, in other cases only a reboot makes them go away (until they come back a few hours later).

This is a major blocker, IMHO.

--
Aleksey Nogin

Home Page: http://nogin.org/
E-Mail: nogin cs caltech edu (office), aleksey nogin org (personal)
Office: Jorgensen 70, tel: (626) 395-2907



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