Re: everyone who has VM problems/messages (writable swappage or crash or lockup)

Alan Cox (alan@lxorguk.ukuu.org.uk)
Thu, 9 Jul 1998 19:24:21 +0100 (BST)


> Actually, I really like egcs-1.0.3a, but I'd love to see the optimisation
> problems fixed. Let's hope egcs-1.1 will be able to compile 2.0.x and
> 2.1.x kernels correctly.

2.0 it wont - the problem isnt egcs, if it was egcs it would be simple.
The problem is generally egcs being _too_ good at its job

Its quite happy to rearrange the order of operations for performance and
to remove "dead code". Of course the former when not correctly marked in
device drivers is a disaster and the latter tends to include little things
like delay loops that have been handled wrongly.

For 2.1.x we are trying to cover all of these, for 2.0.x its not a good
plan to even attempt it.

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