Re: BUG: deadlock in swap lockmap handling

Alan Cox (alan@lxorguk.ukuu.org.uk)
Mon, 18 Jan 1999 22:24:38 +0000 (GMT)

> I think it will not harm too much because the window is not too big (but
> not small) and because usually one of the process not yet deadlocked will
> generate IO and will wakeup also the deadlocked process at I/O
> completation time. A very lazy ;) but at the same time obviosly right

Take it from me - the scenario you give will cause deadlocks and problems.
There were other "generating an I/O would have cleaned up" type problems in
2.0.x < .35/6. They caused a lot of grief with installers where that
I/O assumption is not true. Another classic case is large fsck's during
boot up.

So its not just a trivial irrelevant fix.

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