Re: [PATCH v2 14/20] mm: Provide speculative fault infrastructure

[PATCH v2 00/20] Speculative page faults · Laurent Dufour <hidden> · 2017-08-17
[PATCH v2 01/20] mm: Dont assume page-table invariance during faults · Laurent Dufour <hidden> · 2017-08-17
[PATCH v2 03/20] mm: Introduce pte_spinlock for FAULT_FLAG_SPECULATIVE · Laurent Dufour <hidden> · 2017-08-17
[PATCH v2 04/20] mm: VMA sequence count · Laurent Dufour <hidden> · 2017-08-17
[PATCH v2 05/20] mm: Protect VMA modifications using VMA sequence count · Laurent Dufour <hidden> · 2017-08-17
[PATCH v2 07/20] mm: Cache some VMA fields in the vm_fault structure · Laurent Dufour <hidden> · 2017-08-17
[PATCH v2 11/20] mm: Introduce __maybe_mkwrite() · Laurent Dufour <hidden> · 2017-08-17
[PATCH v2 13/20] mm: Introduce __page_add_new_anon_rmap() · Laurent Dufour <hidden> · 2017-08-17
[PATCH v2 15/20] mm: Try spin lock in speculative path · Laurent Dufour <hidden> · 2017-08-17
[PATCH v2 16/20] mm: Adding speculative page fault failure trace events · Laurent Dufour <hidden> · 2017-08-17
[PATCH v2 18/20] perf tools: Add support for the SPF perf event · Laurent Dufour <hidden> · 2017-08-17
Re: [PATCH v2 18/20] perf tools: Add support for the SPF perf event · Anshuman Khandual <hidden> · 2017-08-21
Re: [PATCH v2 18/20] perf tools: Add support for the SPF perf event · Laurent Dufour <hidden> · 2017-08-25
[PATCH v2 20/20] powerpc/mm: Add speculative page fault · Laurent Dufour <hidden> · 2017-08-17
Re: [PATCH v2 20/20] powerpc/mm: Add speculative page fault · Anshuman Khandual <hidden> · 2017-08-21
Re: [PATCH v2 20/20] powerpc/mm: Add speculative page fault · Laurent Dufour <hidden> · 2017-08-29
[PATCH v2 19/20] x86/mm: Add speculative pagefault handling · Laurent Dufour <hidden> · 2017-08-17
Re: [PATCH v2 19/20] x86/mm: Add speculative pagefault handling · Anshuman Khandual <hidden> · 2017-08-21
Re: [PATCH v2 19/20] x86/mm: Add speculative pagefault handling · Laurent Dufour <hidden> · 2017-08-29
Re: [PATCH v2 19/20] x86/mm: Add speculative pagefault handling · Laurent Dufour <hidden> · 2017-08-29
[PATCH v2 17/20] perf: Add a speculative page fault sw event · Laurent Dufour <hidden> · 2017-08-17
Re: [PATCH v2 17/20] perf: Add a speculative page fault sw event · Anshuman Khandual <hidden> · 2017-08-21
Re: [PATCH v2 17/20] perf: Add a speculative page fault sw event · Michael Ellerman <mpe@ellerman.id.au> · 2017-08-22
[PATCH v2 14/20] mm: Provide speculative fault infrastructure · Laurent Dufour <hidden> · 2017-08-17
Re: [PATCH v2 14/20] mm: Provide speculative fault infrastructure · Sergey Senozhatsky <hidden> · 2017-08-20
Re: [PATCH v2 14/20] mm: Provide speculative fault infrastructure · Laurent Dufour <hidden> · 2017-08-25
Re: [PATCH v2 14/20] mm: Provide speculative fault infrastructure · Kirill A. Shutemov <hidden> · 2017-08-27
Re: [PATCH v2 14/20] mm: Provide speculative fault infrastructure · Peter Zijlstra <peterz@infradead.org> · 2017-08-28
Re: [PATCH v2 14/20] mm: Provide speculative fault infrastructure · Benjamin Herrenschmidt <benh@kernel.crashing.org> · 2017-08-28
Re: [PATCH v2 14/20] mm: Provide speculative fault infrastructure · Andi Kleen <hidden> · 2017-08-28
Re: [PATCH v2 14/20] mm: Provide speculative fault infrastructure · Peter Zijlstra <peterz@infradead.org> · 2017-08-29
Re: [PATCH v2 14/20] mm: Provide speculative fault infrastructure · Peter Zijlstra <peterz@infradead.org> · 2017-08-29
Re: [PATCH v2 14/20] mm: Provide speculative fault infrastructure · Peter Zijlstra <peterz@infradead.org> · 2017-08-29
Re: [PATCH v2 14/20] mm: Provide speculative fault infrastructure · Benjamin Herrenschmidt <benh@kernel.crashing.org> · 2017-08-29
Re: [PATCH v2 14/20] mm: Provide speculative fault infrastructure · Peter Zijlstra <peterz@infradead.org> · 2017-08-30
Re: [PATCH v2 14/20] mm: Provide speculative fault infrastructure · Laurent Dufour <hidden> · 2017-08-29
Re: [PATCH v2 14/20] mm: Provide speculative fault infrastructure · Peter Zijlstra <peterz@infradead.org> · 2017-08-29
Re: [PATCH v2 14/20] mm: Provide speculative fault infrastructure · Laurent Dufour <hidden> · 2017-08-29
Re: [PATCH v2 14/20] mm: Provide speculative fault infrastructure · Peter Zijlstra <peterz@infradead.org> · 2017-08-29
Re: [PATCH v2 14/20] mm: Provide speculative fault infrastructure · Anshuman Khandual <hidden> · 2017-08-30
Re: [PATCH v2 14/20] mm: Provide speculative fault infrastructure · Peter Zijlstra <peterz@infradead.org> · 2017-08-30
Re: [PATCH v2 14/20] mm: Provide speculative fault infrastructure · Laurent Dufour <hidden> · 2017-08-30
Re: [PATCH v2 14/20] mm: Provide speculative fault infrastructure · Anshuman Khandual <hidden> · 2017-08-31
Re: [PATCH v2 14/20] mm: Provide speculative fault infrastructure · Peter Zijlstra <peterz@infradead.org> · 2017-08-31
Re: [PATCH v2 14/20] mm: Provide speculative fault infrastructure · Laurent Dufour <hidden> · 2017-08-30
Re: [PATCH v2 14/20] mm: Provide speculative fault infrastructure · Anshuman Khandual <hidden> · 2017-08-30
Re: [PATCH v2 14/20] mm: Provide speculative fault infrastructure · Anshuman Khandual <hidden> · 2017-08-30
Re: [PATCH v2 14/20] mm: Provide speculative fault infrastructure · Laurent Dufour <hidden> · 2017-08-30
[PATCH v2 12/20] mm: Introduce __vm_normal_page() · Laurent Dufour <hidden> · 2017-08-17
[PATCH v2 10/20] mm: Introduce __lru_cache_add_active_or_unevictable · Laurent Dufour <hidden> · 2017-08-17
[PATCH v2 09/20] mm/migrate: Pass vm_fault pointer to migrate_misplaced_page() · Laurent Dufour <hidden> · 2017-08-17
[PATCH v2 08/20] mm: Protect SPF handler against anon_vma changes · Laurent Dufour <hidden> · 2017-08-17
[PATCH v2 06/20] mm: RCU free VMAs · Laurent Dufour <hidden> · 2017-08-17
[PATCH v2 02/20] mm: Prepare for FAULT_FLAG_SPECULATIVE · Laurent Dufour <hidden> · 2017-08-17
Re: [PATCH v2 00/20] Speculative page faults · Sergey Senozhatsky <hidden> · 2017-08-21
Re: [PATCH v2 00/20] Speculative page faults · Laurent Dufour <hidden> · 2017-09-08
Re: [PATCH v2 00/20] Speculative page faults · Sergey Senozhatsky <hidden> · 2017-09-11
Re: [PATCH v2 00/20] Speculative page faults · Laurent Dufour <hidden> · 2017-09-11
Re: [PATCH v2 00/20] Speculative page faults · Anshuman Khandual <hidden> · 2017-08-21
Re: [PATCH v2 00/20] Speculative page faults · Paul E. McKenney <hidden> · 2017-08-22
Re: [PATCH v2 00/20] Speculative page faults · Laurent Dufour <hidden> · 2017-08-25

From: Peter Zijlstra <peterz@infradead.org>
Date: 2017-08-29 08:16:20
Also in: linux-mm, lkml

On Mon, Aug 28, 2017 at 03:35:11PM -0700, Andi Kleen wrote:

Yes the whole thing is quite risky. Probably will need some
kind of per architecture opt-in scheme?

See patch 19/20, that not enough for you?

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