Messages in this thread | | | Date | Thu, 28 Sep 2017 16:51:46 -0700 | From | Govindarajulu Varadarajan <> | Subject | Re: [PATCH 4/4] lockdep: make MAX_LOCK_DEPTH configurable from Kconfig |
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On Thu, 28 Sep 2017, Peter Zijlstra wrote:
> On Wed, Sep 27, 2017 at 02:42:20PM -0700, Govindarajulu Varadarajan wrote: >> Make MAX_LOCK_DEPTH configurable. It is set to 48 right now. Number of >> VFs under a PCI pf bus can exceed 48 and this disables lockdep. >> >> lockdep currently allows max of 63 held_locks. > > But why a config knob? Why not just raise the number to 64 > unconditionally? And is that sufficient; you only state 48 is > insufficient, you don't actually state the VF limit. >
I did not want to change the default configuration for everyone.
I will change it 63 unconditionally in v2 and resubmit the series.
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