From: Matthew Wilcox <willy@infradead.org>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
Peter Zijlstra <peterz@infradead.org>,
Ankur Arora <ankur.a.arora@oracle.com>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org, x86@kernel.org,
akpm@linux-foundation.org, luto@kernel.org, bp@alien8.de,
dave.hansen@linux.intel.com, hpa@zytor.com, mingo@redhat.com,
juri.lelli@redhat.com, vincent.guittot@linaro.org,
mgorman@suse.de, rostedt@goodmis.org, jon.grimm@amd.com,
bharata@amd.com, raghavendra.kt@amd.com,
boris.ostrovsky@oracle.com, konrad.wilk@oracle.com,
jgross@suse.com, andrew.cooper3@citrix.com,
Geert Uytterhoeven <geert@linux-m68k.org>,
linux-m68k@lists.linux-m68k.org,
Richard Weinberger <richard@nod.at>,
Anton Ivanov <anton.ivanov@cambridgegreys.com>,
Johannes Berg <johannes@sipsolutions.net>,
linux-um@lists.infradead.org, Brian Cain <bcain@quicinc.com>,
linux-hexagon@vger.kernel.org,
Richard Henderson <richard.henderson@linaro.org>,
Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
Matt Turner <mattst88@gmail.com>,
linux-alpha@vger.kernel.org
Subject: Arches that don't support PREEMPT
Date: Tue, 19 Sep 2023 14:00:54 +0100 [thread overview]
Message-ID: <ZQmbhoQIINs8rLHp@casper.infradead.org> (raw)
In-Reply-To: <87led2wdj0.ffs@tglx>
On Tue, Sep 19, 2023 at 02:30:59PM +0200, Thomas Gleixner wrote:
> Though it just occured to me that there are dragons lurking:
>
> arch/alpha/Kconfig: select ARCH_NO_PREEMPT
> arch/hexagon/Kconfig: select ARCH_NO_PREEMPT
> arch/m68k/Kconfig: select ARCH_NO_PREEMPT if !COLDFIRE
> arch/um/Kconfig: select ARCH_NO_PREEMPT
Sounds like three-and-a-half architectures which could be queued up for
removal right behind ia64 ...
I suspect none of these architecture maintainers have any idea there's a
problem. Look at commit 87a4c375995e and the discussion in
https://lore.kernel.org/lkml/20180724175646.3621-1-hch@lst.de/
Let's cc those maintainers so they can remove this and fix whatever
breaks.
_______________________________________________
linux-um mailing list
linux-um@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-um
next parent reply other threads:[~2023-09-19 13:01 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <87edj64rj1.fsf@oracle.com>
[not found] ` <CAHk-=wi0bXpgULVVLc2AdJcta-fvQP7yyFQ_JtaoHUiPrqf--A@mail.gmail.com>
[not found] ` <87zg1u1h5t.fsf@oracle.com>
[not found] ` <CAHk-=whMkp68vNxVn1H3qe_P7n=X2sWPL9kvW22dsvMFH8FcQQ@mail.gmail.com>
[not found] ` <20230911150410.GC9098@noisy.programming.kicks-ass.net>
[not found] ` <87h6o01w1a.fsf@oracle.com>
[not found] ` <20230912082606.GB35261@noisy.programming.kicks-ass.net>
[not found] ` <87cyyfxd4k.ffs@tglx>
[not found] ` <CAHk-=whnwC01m_1f-gaM1xbvvwzwTiKitrWniA-ChZv+bM03dg@mail.gmail.com>
[not found] ` <87led2wdj0.ffs@tglx>
2023-09-19 13:00 ` Matthew Wilcox [this message]
2023-09-19 13:34 ` Arches that don't support PREEMPT Geert Uytterhoeven
2023-09-19 13:37 ` John Paul Adrian Glaubitz
2023-09-19 13:42 ` Peter Zijlstra
2023-09-19 13:48 ` John Paul Adrian Glaubitz
2023-09-19 14:16 ` Peter Zijlstra
2023-09-19 14:24 ` John Paul Adrian Glaubitz
2023-09-19 14:32 ` Matthew Wilcox
2023-09-19 15:31 ` Steven Rostedt
2023-09-20 14:38 ` Anton Ivanov
2023-09-21 12:20 ` Arnd Bergmann
2023-09-19 14:17 ` Thomas Gleixner
2023-09-19 14:50 ` H. Peter Anvin
2023-09-19 14:57 ` Matt Turner
2023-09-19 17:25 ` Linus Torvalds
2023-09-19 17:58 ` John Paul Adrian Glaubitz
2023-09-19 18:31 ` Thomas Gleixner
2023-09-19 18:38 ` Steven Rostedt
2023-09-19 18:52 ` Linus Torvalds
2023-09-19 19:53 ` Thomas Gleixner
2023-09-20 7:32 ` Ingo Molnar
2023-09-20 7:29 ` Ingo Molnar
2023-09-20 8:26 ` Thomas Gleixner
2023-09-20 10:37 ` David Laight
2023-09-19 14:21 ` Anton Ivanov
2023-09-19 15:17 ` Thomas Gleixner
2023-09-19 15:21 ` Anton Ivanov
2023-09-19 16:22 ` Richard Weinberger
2023-09-19 16:41 ` Anton Ivanov
2023-09-19 17:33 ` Thomas Gleixner
2023-10-06 14:51 ` Geert Uytterhoeven
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=ZQmbhoQIINs8rLHp@casper.infradead.org \
--to=willy@infradead.org \
--cc=akpm@linux-foundation.org \
--cc=andrew.cooper3@citrix.com \
--cc=ankur.a.arora@oracle.com \
--cc=anton.ivanov@cambridgegreys.com \
--cc=bcain@quicinc.com \
--cc=bharata@amd.com \
--cc=boris.ostrovsky@oracle.com \
--cc=bp@alien8.de \
--cc=dave.hansen@linux.intel.com \
--cc=geert@linux-m68k.org \
--cc=hpa@zytor.com \
--cc=ink@jurassic.park.msu.ru \
--cc=jgross@suse.com \
--cc=johannes@sipsolutions.net \
--cc=jon.grimm@amd.com \
--cc=juri.lelli@redhat.com \
--cc=konrad.wilk@oracle.com \
--cc=linux-alpha@vger.kernel.org \
--cc=linux-hexagon@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-m68k@lists.linux-m68k.org \
--cc=linux-mm@kvack.org \
--cc=linux-um@lists.infradead.org \
--cc=luto@kernel.org \
--cc=mattst88@gmail.com \
--cc=mgorman@suse.de \
--cc=mingo@redhat.com \
--cc=peterz@infradead.org \
--cc=raghavendra.kt@amd.com \
--cc=richard.henderson@linaro.org \
--cc=richard@nod.at \
--cc=rostedt@goodmis.org \
--cc=tglx@linutronix.de \
--cc=torvalds@linux-foundation.org \
--cc=vincent.guittot@linaro.org \
--cc=x86@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).