Messages in this thread | | | Date | Thu, 8 Oct 2015 22:21:18 +0530 | From | Pratyush Anand <> | Subject | Re: [PATCH v4 1/2] arm64: Introduce IRQ stack |
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Hi Jungseok,
On 08/10/2015:11:32:43 PM, Jungseok Lee wrote: > On Oct 8, 2015, at 7:25 PM, Pratyush Anand wrote: > > Hi Jungseok, > > Hi Pratyush, > > > > > On 07/10/2015:03:28:11 PM, Jungseok Lee wrote: > >> Currently, kernel context and interrupts are handled using a single > >> kernel stack navigated by sp_el1. This forces a system to use 16KB > >> stack, not 8KB one. This restriction makes low memory platforms suffer > >> from memory pressure accompanied by performance degradation. > > > > How will it behave on 64K Page system? There, it would take atleast 64K per cpu, > > right? > > It would take 16KB per cpu even on 64KB page system. > The following code snippet from kernel/fork.c would be helpful.
Yes..Yes..its understood. Thanks for pointing to the code.
~Pratyush
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