> IMO there was only one historically hard spinlock-related problem that
> needed solving, this is the 'locks up hard' problem (which is solved). The
> rest was never really an debugging obstacle, 99% of the spinlock related
> bugs manifest themselves in clear, unambiguous lockups.
Then why are we still finding obscure lock ordering bugs in 2.2 ? Finding them
when they bite you is easy, finding the obscure ones when they dont generally
bite is much harder - thats where debugging kernels that trap and dump
lock lists for order violations are a big win
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This archive was generated by hypermail 2b29 : Thu Sep 07 2000 - 21:00:23 EST