Re: Strange interrupt behaviour

Andrea Arcangeli (arcangel@CS.UniBO.IT)
Wed, 15 Jul 1998 12:37:48 +0200 (MET DST)


On Wed, 15 Jul 1998, MOLNAR Ingo wrote:

> nice hack. If the 'current' issue is solved, this also enables us to

Thanks! Anyway I noticed now (this night was really too late) that
old_stacks can be removed since I can put the old stack pointer in the new
stack directly instead to push the irq that indexed old_stacks[].

It the patch make sense (there are a lot of things I am not aware I
think... for example I thought that the same interrupt couldn' t be
reentrant...) I can optimize it out this evening...

Also I' ve seen that the task state struct is saved in the last 0x1fff
bytes of the kernel stack but I thought that it doesn' t make sense the
tss inside an interrupt...

Andrea[s] Arcangeli

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