Re: No, really, stop trying to delete slab until you've finishedmaking slub perform as well

From: Christoph Lameter
Date: Thu Aug 14 2008 - 11:08:05 EST


Pekka Enberg wrote:

This patch hard locks on my 2-way 64-bit x86 machine (sysrq doesn't respond) when I run hackbench.
At that point we take the listlock and then the slab lock which is a lock inversion if we do not use a trylock here. Crap.

Hmmm.. The code already goes to the next slab if an earlier one is already locked. So I do not see how the large partial lists could be generated.


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