* removig ia64, was: Re: [PATCH 3/4] mm/tlb, x86/mm: Support invalidating TLB caches for RCU_TABLE_FRE
[not found] ` <20180827074701.GW24124@hirez.programming.kicks-ass.net>
@ 2018-08-27 8:57 ` Christoph Hellwig
2018-08-27 11:28 ` removig ia64, was: Re: [PATCH 3/4] mm/tlb, x86/mm: Support invalidating TLB caches for RCU_TABLE Peter Zijlstra
2018-08-27 11:45 ` Jason Duerstock
0 siblings, 2 replies; 3+ messages in thread
From: Christoph Hellwig @ 2018-08-27 8:57 UTC (permalink / raw)
To: Peter Zijlstra
Cc: Nicholas Piggin, Will Deacon, Linus Torvalds,
Benjamin Herrenschmidt, Andrew Lutomirski,
the arch/x86 maintainers, Borislav Petkov, Rik van Riel,
Jann Horn, Adin Scannell, Dave Hansen, Linux Kernel Mailing List,
linux-mm, David Miller, Martin Schwidefsky, Michael Ellerman,
Tony Luck, Fenghua Yu, linux-ia64
On Mon, Aug 27, 2018 at 09:47:01AM +0200, Peter Zijlstra wrote:
> sh is trivial, arm seems doable, with a bit of luck we can do 'rm -rf
> arch/ia64' leaving us with s390.
Is removing ia64 a serious plan? It is the cause for a fair share of
oddities in dma lang, and I did not have much luck getting maintainer
replies lately, but I didn't know of a plan to get rid of it.
What is the state of people still using ia64 mainline kernels vs just
old distros in the still existing machines?
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: removig ia64, was: Re: [PATCH 3/4] mm/tlb, x86/mm: Support invalidating TLB caches for RCU_TABLE
2018-08-27 8:57 ` removig ia64, was: Re: [PATCH 3/4] mm/tlb, x86/mm: Support invalidating TLB caches for RCU_TABLE_FRE Christoph Hellwig
@ 2018-08-27 11:28 ` Peter Zijlstra
2018-08-27 11:45 ` Jason Duerstock
1 sibling, 0 replies; 3+ messages in thread
From: Peter Zijlstra @ 2018-08-27 11:28 UTC (permalink / raw)
To: Christoph Hellwig
Cc: Nicholas Piggin, Will Deacon, Linus Torvalds,
Benjamin Herrenschmidt, Andrew Lutomirski,
the arch/x86 maintainers, Borislav Petkov, Rik van Riel,
Jann Horn, Adin Scannell, Dave Hansen, Linux Kernel Mailing List,
linux-mm, David Miller, Martin Schwidefsky, Michael Ellerman,
Tony Luck, Fenghua Yu, linux-ia64
On Mon, Aug 27, 2018 at 01:57:08AM -0700, Christoph Hellwig wrote:
> On Mon, Aug 27, 2018 at 09:47:01AM +0200, Peter Zijlstra wrote:
> > sh is trivial, arm seems doable, with a bit of luck we can do 'rm -rf
> > arch/ia64' leaving us with s390.
>
> Is removing ia64 a serious plan?
I 'joked' about it a while ago on IRC, and aegl reacted that it might
not be entirely unreasonable.
> It is the cause for a fair share of
> oddities in dma lang, and I did not have much luck getting maintainer
> replies lately, but I didn't know of a plan to get rid of it.
>
> What is the state of people still using ia64 mainline kernels vs just
> old distros in the still existing machines?
Both arjan and aegl said that the vast majority of people still running
ia64 machines run old distros.
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: removig ia64, was: Re: [PATCH 3/4] mm/tlb, x86/mm: Support invalidating TLB caches for RCU_TABLE
2018-08-27 8:57 ` removig ia64, was: Re: [PATCH 3/4] mm/tlb, x86/mm: Support invalidating TLB caches for RCU_TABLE_FRE Christoph Hellwig
2018-08-27 11:28 ` removig ia64, was: Re: [PATCH 3/4] mm/tlb, x86/mm: Support invalidating TLB caches for RCU_TABLE Peter Zijlstra
@ 2018-08-27 11:45 ` Jason Duerstock
1 sibling, 0 replies; 3+ messages in thread
From: Jason Duerstock @ 2018-08-27 11:45 UTC (permalink / raw)
To: hch
Cc: peterz, npiggin, will.deacon, torvalds, benh, luto, x86, bp, riel,
jannh, ascannell, dave.hansen, linux-kernel, linux-mm, davem,
schwidefsky, mpe, tony.luck, fenghua.yu, linux-ia64
I cannot speak to how widespread it has been adopted, but the linux
(kernel) package for version 4.17.17 has been successfully built and
installed for ia64 under Debian ports. There is clearly more work to
do to get ia64 rehabilitated, but there are over 10,000 packages
currently successfully built for ia64 under Debian ports[1].
Jason
[1] https://buildd.debian.org/status/architecture.php?a=ia64&suite=sid
On Mon, Aug 27, 2018 at 4:57 AM Christoph Hellwig <hch@infradead.org> wrote:
>
> On Mon, Aug 27, 2018 at 09:47:01AM +0200, Peter Zijlstra wrote:
> > sh is trivial, arm seems doable, with a bit of luck we can do 'rm -rf
> > arch/ia64' leaving us with s390.
>
> Is removing ia64 a serious plan? It is the cause for a fair share of
> oddities in dma lang, and I did not have much luck getting maintainer
> replies lately, but I didn't know of a plan to get rid of it.
>
> What is the state of people still using ia64 mainline kernels vs just
> old distros in the still existing machines?
^ permalink raw reply [flat|nested] 3+ messages in thread
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2018-08-27 8:57 ` removig ia64, was: Re: [PATCH 3/4] mm/tlb, x86/mm: Support invalidating TLB caches for RCU_TABLE_FRE Christoph Hellwig
2018-08-27 11:28 ` removig ia64, was: Re: [PATCH 3/4] mm/tlb, x86/mm: Support invalidating TLB caches for RCU_TABLE Peter Zijlstra
2018-08-27 11:45 ` Jason Duerstock
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