Re: x86: 4kstacks default

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To: Helge Hafting <helge.hafting@...>

Cc: Adrian Bunk <bunk@...>, Willy Tarreau <w@...>, Andi Kleen <andi@...>, Alan Cox <alan@...>, Shawn Bohrer <shawn.bohrer@...>, Ingo Molnar <mingo@...>, Andrew Morton <akpm@...>, Linux Kernel Mailing List <linux-kernel@...>, Arjan van de Ven <arjan@...>, Thomas Gleixner <tglx@...>

Subject: Re: x86: 4kstacks default

Date: Wednesday, April 23, 2008 - 7:29 pm

On Wed, Apr 23, 2008 at 11:13:55AM +0200, Helge Hafting wrote:
quoted text> Adrian Bunk wrote:
> >What actually brings bad reputation is shipping a 4k option that is 
> >known to break under some circumstances.
> >  
> How about making 4k stacks incompatible with those circumstances then?
> I.e. is you select 4k stacks, then you can't select XFS because we know
> that _may_ fail. Similiar for ndiswrapper networking, and other
> stuff where problems have been noticed.

Yeah, that means every distro that supports XFS (i.e. pretty much
all of them including Fedora) will be forced disable 4k stacks on
x86.  I'd be happy with this solution.

FWIW, this would make 4k stacks pretty much unused outside of custom
kernels.  At which point I'd suggest a default of 4k is wrong....

Cheers,

Dave.
-- 
Dave Chinner
Principal Engineer
SGI Australian Software Group
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Messages in current thread:

Re: x86: 4kstacks default, Andrew Morton, (Fri Apr 18, 5:29 pm)

Re: x86: 4kstacks default, Ingo Molnar, (Sat Apr 19, 10:23 am)

Re: x86: 4kstacks default, Benjamin Herrenschmidt, (Wed Apr 23, 1:27 am)

Re: x86: 4kstacks default, David Chinner, (Wed Apr 23, 7:36 pm)

Re: x86: 4kstacks default, Benjamin Herrenschmidt, (Wed Apr 23, 8:56 pm)

Re: x86: 4kstacks default, Arjan van de Ven, (Wed Apr 23, 8:45 pm)

Re: x86: 4kstacks default, Christoph Hellwig, (Thu Apr 24, 5:52 am)

Re: x86: 4kstacks default, Chris Mason, (Thu Apr 24, 11:41 am)

Re: x86: 4kstacks default, Alexander van Heukelum, (Thu Apr 24, 2:30 pm)

Re: x86: 4kstacks default, Peter Zijlstra, (Thu Apr 24, 8:25 am)

Re: x86: 4kstacks default, Oliver Pinter, (Sat Apr 19, 10:35 am)

Re: x86: 4kstacks default, Adrian Bunk, (Sat Apr 19, 11:19 am)

Re: x86: 4kstacks default, Oliver Pinter, (Sat Apr 19, 11:42 am)

Re: x86: 4kstacks default, Eric Sandeen, (Sat Apr 19, 9:56 pm)

Re: x86: 4kstacks default, Adrian Bunk, (Sun Apr 20, 3:42 am)

Re: x86: 4kstacks default, Chris Wedgwood, (Sun Apr 20, 12:59 pm)

Re: x86: 4kstacks default, Eric Sandeen, (Sat Apr 19, 11:29 pm)

Re: x86: 4kstacks default, Ingo Molnar, (Mon Apr 21, 10:31 am)

Re: x86: 4kstacks default, Andi Kleen, (Sun Apr 20, 8:36 am)

Re: x86: 4kstacks default, Shawn Bohrer, (Sat Apr 19, 10:59 am)

Re: x86: 4kstacks default, Adrian Bunk, (Sun Apr 20, 4:09 am)

Re: x86: 4kstacks default, Alan Cox, (Sun Apr 20, 4:06 am)

Re: x86: 4kstacks default, Adrian Bunk, (Sun Apr 20, 4:51 am)

Re: x86: 4kstacks default, Alan Cox, (Sun Apr 20, 5:36 am)

Re: x86: 4kstacks default, Adrian Bunk, (Sun Apr 20, 6:44 am)

Re: x86: 4kstacks default, Mark Lord, (Sun Apr 20, 9:22 am)

Re: x86: 4kstacks default, Andi Kleen, (Sun Apr 20, 8:27 am)

Re: x86: 4kstacks default, Daniel Hazelton, (Sun Apr 20, 11:44 am)

Re: x86: 4kstacks default, Romano Giannetti, (Tue Apr 22, 2:20 pm)

Re: x86: 4kstacks default, Denys Vlasenko, (Wed Apr 23, 1:03 am)

Re: x86: 4kstacks default, Daniel Hazelton, (Wed Apr 23, 1:21 am)

Re: x86: 4kstacks default, , (Wed Apr 23, 1:25 am)

Re: x86: 4kstacks default, Daniel Hazelton, (Wed Apr 23, 1:41 am)

Re: x86: 4kstacks default, Romano Giannetti, (Wed Apr 23, 3:46 am)

Re: x86: 4kstacks default, Stefan Richter, (Wed Apr 23, 7:24 am)

Re: x86: 4kstacks default, Romano Giannetti, (Wed Apr 23, 8:15 am)

Re: x86: 4kstacks default, Lennart Sorensen, (Wed Apr 23, 11:59 am)

Re: x86: 4kstacks default, Andi Kleen, (Sun Apr 20, 1:26 pm)

Re: x86: 4kstacks default, Arjan van de Ven, (Sun Apr 20, 2:48 pm)

Re: x86: 4kstacks default, Andrew Morton, (Sun Apr 20, 5:45 pm)

Re: x86: 4kstacks default, Andi Kleen, (Sun Apr 20, 5:51 pm)

Re: x86: 4kstacks default, Andi Kleen, (Sun Apr 20, 4:01 pm)

Re: x86: 4kstacks default, Arjan van de Ven, (Sun Apr 20, 6:33 pm)

Re: x86: 4kstacks default, Eric Sandeen, (Sun Apr 20, 11:06 pm)

Re: x86: 4kstacks default, Andi Kleen, (Sun Apr 20, 7:16 pm)

Re: x86: 4kstacks default, Arjan van de Ven, (Mon Apr 21, 1:53 am)

Re: x86: 4kstacks default, Daniel Hazelton, (Sun Apr 20, 4:43 pm)

Re: x86: 4kstacks default, Andi Kleen, (Sun Apr 20, 5:40 pm)

Re: x86: 4kstacks default, Daniel Hazelton, (Sun Apr 20, 9:45 pm)

Re: x86: 4kstacks default, Andi Kleen, (Mon Apr 21, 3:51 am)

Re: x86: 4kstacks default, Daniel Hazelton, (Mon Apr 21, 1:34 pm)

Re: x86: 4kstacks default, Bernd Eckenfels, (Sun Apr 20, 6:17 pm)

Re: x86: 4kstacks default, Avi Kivity, (Sun Apr 20, 7:48 pm)

Re: x86: 4kstacks default, Willy Tarreau, (Sun Apr 20, 8:47 am)

Re: x86: 4kstacks default, Mark Lord, (Sun Apr 20, 9:27 am)

Re: x86: 4kstacks default, Eric Sandeen, (Sun Apr 20, 10:09 am)

Re: x86: 4kstacks default, Willy Tarreau, (Sun Apr 20, 10:20 am)

Re: x86: 4kstacks default, Eric Sandeen, (Sun Apr 20, 10:40 am)

Re: x86: 4kstacks default, Willy Tarreau, (Sun Apr 20, 9:38 am)

Re: x86: 4kstacks default, Andi Kleen, (Sun Apr 20, 10:19 am)

Re: x86: 4kstacks default, Jörn, (Sun Apr 20, 12:41 pm)

Re: x86: 4kstacks default, Andi Kleen, (Sun Apr 20, 1:19 pm)

Re: x86: 4kstacks default, Jörn, (Sun Apr 20, 1:43 pm)

Re: x86: 4kstacks default, Andi Kleen, (Sun Apr 20, 2:19 pm)

Re: x86: 4kstacks default, Jörn, (Sun Apr 20, 4:35 pm)

Re: x86: 4kstacks default, Jörn, (Sun Apr 20, 4:32 pm)

Re: x86: 4kstacks default, Arjan van de Ven, (Sun Apr 20, 2:50 pm)

Re: x86: 4kstacks default, Andrew Morton, (Sun Apr 20, 5:50 pm)

Re: x86: 4kstacks default, Ingo Molnar, (Mon Apr 21, 10:29 am)

Re: x86: 4kstacks default, Andi Kleen, (Sun Apr 20, 5:55 pm)

Re: x86: 4kstacks default, Andi Kleen, (Sun Apr 20, 4:09 pm)

Re: x86: 4kstacks default, Adrian Bunk, (Sun Apr 20, 9:21 am)

Re: x86: 4kstacks default, Bill Davidsen, (Mon Apr 28, 2:38 pm)

Re: x86: 4kstacks default, Helge Hafting, (Wed Apr 23, 5:13 am)

Re: x86: 4kstacks default, Eric Sandeen, (Thu Apr 24, 11:46 am)

Re: x86: 4kstacks default, David Chinner, (Wed Apr 23, 7:29 pm)

Re: x86: 4kstacks default, Andi Kleen, (Sun Apr 20, 9:06 am)

Re: x86: 4kstacks default, Adrian Bunk, (Sun Apr 20, 9:30 am)

Re: x86: 4kstacks default, Bill Davidsen, (Mon Apr 28, 1:56 pm)

Re: x86: 4kstacks default, Willy Tarreau, (Sun Apr 20, 9:34 am)

Re: x86: 4kstacks default, Adrian Bunk, (Sun Apr 20, 10:04 am)

Re: x86: 4kstacks default, Adrian Bunk, (Sun Apr 20, 8:32 am)

Re: x86: 4kstacks default, Alan Cox, (Sun Apr 20, 7:02 am)

Re: x86: 4kstacks default, Adrian Bunk, (Sun Apr 20, 7:54 am)

Re: x86: 4kstacks default, Andi Kleen, (Sun Apr 20, 8:37 am)

Re: x86: 4kstacks default, Alan Cox, (Sun Apr 20, 7:37 am)

Re: x86: 4kstacks default, Adrian Bunk, (Sun Apr 20, 8:18 am)

Re: x86: 4kstacks default, Eric Sandeen, (Sun Apr 20, 10:05 am)

Re: x86: 4kstacks default, Denys Vlasenko, (Mon Apr 21, 3:45 am)

Re: x86: 4kstacks default, Eric Sandeen, (Mon Apr 21, 9:29 am)

Re: x86: 4kstacks default, Denys Vlasenko, (Mon Apr 21, 3:51 pm)

Re: x86: 4kstacks default, David Chinner, (Mon Apr 21, 9:28 pm)

Re: x86: 4kstacks default, Jörn, (Sun Apr 27, 3:27 pm)

Re: x86: 4kstacks default, Denys Vlasenko, (Sun Apr 27, 7:02 pm)

Re: x86: 4kstacks default, Eric Sandeen, (Sun Apr 27, 7:08 pm)

Re: x86: 4kstacks default, Denys Vlasenko, (Sun Apr 27, 8:00 pm)

Re: x86: 4kstacks default, Denys Vlasenko, (Tue Apr 22, 8:48 am)

Re: x86: 4kstacks default, Adrian Bunk, (Tue Apr 22, 9:01 am)

Re: x86: 4kstacks default, Denys Vlasenko, (Tue Apr 22, 9:51 am)

[PATCH] xfs: do not pass size into kmem_free, it's unused, Denys Vlasenko, (Mon Apr 21, 10:33 pm)

Re: [PATCH] xfs: do not pass size into kmem_free, it's unused, David Chinner, (Tue Apr 22, 6:02 pm)

Re: [PATCH] xfs: do not pass size into kmem_free, it's unused, Eric Sandeen, (Mon Apr 21, 11:09 pm)

Re: [PATCH] xfs: do not pass size into kmem_free, it's unused, Eric Sandeen, (Mon Apr 21, 11:35 pm)

[PATCH] xfs: do not pass unused params to xfs_flush_pages, Denys Vlasenko, (Mon Apr 21, 11:03 pm)

Re: [PATCH] xfs: do not pass unused params to xfs_flush_pages, David Chinner, (Tue Apr 22, 6:07 pm)

Re: [PATCH] xfs: do not pass unused params to xfs_flush_pages, Eric Sandeen, (Mon Apr 21, 11:15 pm)

Re: [PATCH] xfs: do not pass unused params to xfs_flush_pages, Denys Vlasenko, (Tue Apr 22, 4:57 am)

Re: [PATCH] xfs: do not pass unused params to xfs_flush_pages, Eric Sandeen, (Tue Apr 22, 8:51 am)

Re: [PATCH] xfs: do not pass unused params to xfs_flush_pages, Jakub Jelinek, (Tue Apr 22, 5:56 am)

Re: [PATCH] xfs: do not pass unused params to xfs_flush_pages, Denys Vlasenko, (Tue Apr 22, 6:33 am)

[PATCH] xfs: use smaller int param in call to xfs_flush_pages, Denys Vlasenko, (Mon Apr 21, 11:14 pm)

Re: [PATCH] xfs: use smaller int param in call to xfs_flush_..., David Chinner, (Tue Apr 22, 6:08 pm)

[PATCH] xfs: remove unused parameter of xfs_qm_dqpurge, Denys Vlasenko, (Tue Apr 22, 5:42 am)

Re: [PATCH] xfs: remove unused parameter of xfs_qm_dqpurge, Christoph Hellwig, (Wed Apr 23, 4:18 am)

Re: [PATCH] xfs: remove unused parameter of xfs_qm_dqpurge, David Chinner, (Tue Apr 22, 6:11 pm)

[PATCH] xfs: remove unused parameter of xfs_iomap_write_allo..., Denys Vlasenko, (Tue Apr 22, 6:16 am)

Re: [PATCH] xfs: remove unused parameter of xfs_iomap_write_..., David Chinner, (Tue Apr 22, 6:33 pm)

Re: [PATCH] xfs: #define out unused parameters of xfs_bmap_a..., Denys Vlasenko, (Tue Apr 22, 7:20 am)

Re: [PATCH] xfs: #define out unused parameters of xfs_bmap_a..., David Chinner, (Tue Apr 22, 6:43 pm)

Re: [PATCH] xfs: #define out unused parameters of xfs_bmap_a..., Adrian Bunk, (Tue Apr 22, 10:28 am)

Re: [PATCH] xfs: #define out unused parameters of xfs_bmap_a..., Denys Vlasenko, (Tue Apr 22, 12:17 pm)

Re: [PATCH] xfs: #define out unused parameters of xfs_bmap_a..., Adrian Bunk, (Tue Apr 22, 1:21 pm)

Re: [PATCH] xfs: #define out unused parameters of xfs_bmap_a..., Eric Sandeen, (Tue Apr 22, 1:26 pm)

Re: [PATCH] xfs: #define out unused parameters , Denys Vlasenko, (Tue Apr 22, 4:46 pm)

Re: [PATCH] xfs: #define out unused parameters , Denys Vlasenko, (Tue Apr 22, 1:50 pm)

Re: [PATCH] xfs: #define out unused parameters of?xfs_bmap_a..., Adrian Bunk, (Tue Apr 22, 2:28 pm)

Re: [PATCH] xfs: #define out unused parameters of?xfs_bmap_a..., Denys Vlasenko, (Tue Apr 22, 3:32 pm)

Re: [PATCH] xfs: #define out unused parameters of?xfs_bmap_a..., Adrian Bunk, (Tue Apr 22, 7:53 pm)

[PATCH] xfs: #define out unused parameters for seven functio..., Denys Vlasenko, (Tue Apr 22, 7:51 am)

Re: [PATCH] xfs: #define out unused parameters for seven fun..., David Chinner, (Tue Apr 22, 6:47 pm)

[PATCH] xfs: remove unused params from functions in xfs_dir2..., Denys Vlasenko, (Tue Apr 22, 9:32 am)

[PATCH] xfs: remove unused params from functions in xfs/quot..., Denys Vlasenko, (Tue Apr 22, 9:40 am)

Re: [PATCH] xfs: remove unused params from functions in xfs/..., David Chinner, (Tue Apr 22, 7:08 pm)

[PATCH] xfs: expose no-op xfs_put_perag(), Denys Vlasenko, (Tue Apr 22, 9:46 am)

Re: [PATCH] xfs: expose no-op xfs_put_perag(), David Chinner, (Tue Apr 22, 7:16 pm)

Re: [PATCH] xfs: expose no-op xfs_put_perag(), Eric Sandeen, (Tue Apr 22, 10:08 am)

[PATCH] xfs: #define out unused parameters for seven functio..., Denys Vlasenko, (Tue Apr 22, 7:48 am)

Re: [PATCH] xfs: use smaller int param in call to xfs_flush_..., Eric Sandeen, (Mon Apr 21, 11:18 pm)

Re: [PATCH] xfs: use smaller int param in call to xfs_flush_..., David Chinner, (Tue Apr 22, 12:10 am)

Re: x86: 4kstacks default, Denys Vlasenko, (Mon Apr 21, 4:28 pm)

Re: x86: 4kstacks default, Andi Kleen, (Mon Apr 21, 5:55 am)

Re: x86: 4kstacks default, Arjan van de Ven, (Sun Apr 20, 11:41 am)

Re: x86: 4kstacks default, Adrian Bunk, (Sun Apr 20, 12:03 pm)

Re: x86: 4kstacks default, Alexander E. Patrakov, (Sun Apr 20, 11:30 pm)

Re: x86: 4kstacks default, Helge Hafting, (Wed Apr 23, 4:57 am)

Re: x86: 4kstacks default, Adrian Bunk, (Sun Apr 20, 10:21 am)

Re: x86: 4kstacks default, Eric Sandeen, (Sun Apr 20, 10:56 am)

Re: x86: 4kstacks default, Arjan van de Ven, (Sat Apr 19, 2:00 pm)

Re: x86: 4kstacks default, Eric Sandeen, (Sat Apr 19, 10:36 pm)

Re: x86: 4kstacks default, David Chinner, (Sun Apr 20, 6:53 pm)

Re: x86: 4kstacks default, Arjan van de Ven, (Sun Apr 20, 2:11 am)

Re: x86: 4kstacks default, Ingo Molnar, (Sat Apr 19, 2:33 pm)

Re: x86: 4kstacks default, Stefan Richter, (Sat Apr 19, 3:10 pm)

Re: x86: 4kstacks default, Andrew Morton, (Sat Apr 19, 1:49 pm)

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