Comment 70 for bug 157777

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Ralph Corderoy (ralph-inputplus) wrote : Re: [Bug 157777] Re: gutsy amd64 freeze crash lockup

> I have short lockups of the screen (x-server). I can move the mouse
> but no reaction on mouseclicks. No response from hitting keyboard
> (e.g. caps lock). I only have SHORT lockups (I guess 10 seconds). I
> have seen them most in Firefox where I do a lot of mousescrolling (USB
> mouse).

If that's Firefox 3, it might be this... They've switched their
databases to SQLite and every now and again, when it decides to update
the contents of disc, it triggers a particular kind of write.
Unfortunately, if your $HOME is on an ext3 filesystem, ext3 can't handle
that without also doing all other stuff that's been queued up before
hand causing nothing to happen for ten or 20 seconds. Certainly, if the
machine then comes back to normal then I don't think this particular
symptom is the `hard lock up' that this bug is about. Your other
symptoms could well be though, i.e. you're suffering from both problems.

    https://bugzilla.mozilla.org/show_bug.cgi?id=421482