Re: [patch] vmfixes-2.4.0-test9-B2

Andrea Arcangeli
2000-09-25T14:13:58Z

On Mon, Sep 25, 2000 at 03:57:31PM +0200, Ingo Molnar wrote:
> i had yesterday - those were simple VM deadlocks. I dont see any deadlocks

Definitely. They can't explain anything about the VM deadlocks. I was
_only_ talking about the blkdev hangs that caused you to unplug the
queue at each reschedule in tux and that Eric reported me for the SG
driver (and I very much hope that with EXCLUSIVE gone away and the
wait_on_* fixed those hangs will go away because I don't see anything else
wrong at this moment).

> but one of these two fixes could explain the slowdown i saw on and off for
> quite some time, seeing very bad read performance occasionally. (do you
> remember my sched.c tq_disc hack?)

Exactly, that's the only thing I was talking about in this subthread.

Andrea