LKML Archive on lore.kernel.org
help / color / mirror / Atom feed
From: Geert Uytterhoeven <geert@linux-m68k.org>
To: Robin Murphy <robin.murphy@arm.com>
Cc: Will Deacon <will.deacon@arm.com>,
	Mark Rutland <Mark.Rutland@arm.com>,
	austinwc@codeaurora.org, tnowicki@caviumnetworks.com,
	Catalin Marinas <catalin.marinas@arm.com>,
	Palmer Dabbelt <palmer@sifive.com>,
	linux-riscv@lists.infradead.org, wangxiongfeng2@huawei.com,
	vkilari@codeaurora.org,
	Lorenzo Pieralisi <Lorenzo.Pieralisi@arm.com>,
	jhugo@codeaurora.org, Morten.Rasmussen@arm.com,
	ACPI Devel Maling List <linux-acpi@vger.kernel.org>,
	Len Brown <lenb@kernel.org>, John Garry <john.garry@huawei.com>,
	Al Stone <ahs3@redhat.com>,
	Linux ARM <linux-arm-kernel@lists.infradead.org>,
	Ard Biesheuvel <ard.biesheuvel@linaro.org>,
	Greg KH <gregkh@linuxfoundation.org>,
	"Rafael J. Wysocki" <rjw@rjwysocki.net>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	Jeremy Linton <jeremy.linton@arm.com>,
	Linux-Renesas <linux-renesas-soc@vger.kernel.org>,
	Hanjun Guo <hanjun.guo@linaro.org>,
	Sudeep Holla <sudeep.holla@arm.com>,
	Dietmar Eggemann <Dietmar.Eggemann@arm.com>
Subject: Re: [PATCH v9 00/12] Support PPTT for ARM64
Date: Tue, 29 May 2018 19:18:35 +0200	[thread overview]
Message-ID: <CAMuHMdVJdpd_60bN=sxZeqUyPuxfLWFCMPZWyZQ37GAQkGb37g@mail.gmail.com> (raw)
In-Reply-To: <d2c843d2-a15c-e4c3-899d-ef5c26678016@arm.com>

Hi Robin,

On Tue, May 29, 2018 at 7:08 PM, Robin Murphy <robin.murphy@arm.com> wrote:
> On 29/05/18 16:51, Geert Uytterhoeven wrote:
>> On Tue, May 29, 2018 at 5:08 PM, Will Deacon <will.deacon@arm.com> wrote:
>>> On Tue, May 29, 2018 at 02:18:40PM +0100, Sudeep Holla wrote:
>>>> On 29/05/18 12:56, Geert Uytterhoeven wrote:
>>>>> On Tue, May 29, 2018 at 1:14 PM, Sudeep Holla <sudeep.holla@arm.com>
>>>>> wrote:
>>>>>> On 29/05/18 11:48, Geert Uytterhoeven wrote:
>>>>>>> System supend still works fine on systems with big cores only:
>>>>>>>
>>>>>>>      R-Car H3 ES1.0 (4xCA57 (4xCA53 disabled in firmware))
>>>>>>>      R-Car M3-N (2xCA57)
>>>>>>>
>>>>>>> Reverting this commit fixes the issue for me.
>>>>>>
>>>>>> I can't find anything that relates to system suspend in these patches
>>>>>> unless they are messing with something during CPU hot plug-in back
>>>>>> during resume.
>>>>>
>>>>> It's only the last patch that introduces the breakage.
>>>>
>>>> As specified in the commit log, it won't change any behavior for DT
>>>> systems if it's non-NUMA or single node system. So I am still wondering
>>>> what could trigger this regression.
>>>
>>> I wonder if we're somehow giving an uninitialised/invalid NUMA
>>> configuration
>>> to the scheduler, although I can't see how this would happen.
>>>
>>> Geert -- if you enable CONFIG_DEBUG_PER_CPU_MAPS=y and apply the diff
>>> below
>>> do you see anything shouting in dmesg?
>>
>> Thanks, but unfortunately it doesn't help.
>> I added some debug code to print cpumask, but so far I don't see anything
>> suspicious.
>
> Do you have CONFIG_NUMA enabled? On a hunch I've managed to reproduce what
> looks like the same thing on a Juno board with NUMA=n; going in with
> external debug it seems to be stuck in the loop in
> init_sched_groups_capacity(), with an approximate stack trace of:

CONFIG_NUMA is not set.
I'm basically using renesas_defconfig from
https://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas.git/log/?h=topic/renesas-defconfig

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

  reply	other threads:[~2018-05-29 17:18 UTC|newest]

Thread overview: 56+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-05-11 23:57 Jeremy Linton
2018-05-11 23:57 ` [PATCH v9 01/12] drivers: base: cacheinfo: move cache_setup_of_node() Jeremy Linton
2018-05-11 23:57 ` [PATCH v9 02/12] drivers: base: cacheinfo: setup DT cache properties early Jeremy Linton
2018-05-15 17:15   ` Jeremy Linton
2018-05-15 19:32     ` Andy Shevchenko
2018-05-16 10:56       ` Sudeep Holla
2018-05-17 15:47         ` Sudeep Holla
2018-05-18 21:50           ` Andy Shevchenko
2018-05-21  9:27             ` Sudeep Holla
2018-05-21 10:15               ` Sudeep Holla
2018-05-21 10:32       ` [PATCH] drivers: base: cacheinfo: use OF property_read_u64 instead of get_property,read_number Sudeep Holla
2018-05-21 12:53         ` [PATCH v2] drivers: base: cacheinfo: use OF property_read_u32 " Sudeep Holla
2018-06-05 16:21           ` Andy Shevchenko
2018-06-05 16:26             ` Sudeep Holla
2018-06-05 16:34               ` Andy Shevchenko
2018-05-17  6:54     ` [PATCH v9 02/12] drivers: base: cacheinfo: setup DT cache properties early Greg KH
2018-05-17  9:08       ` Sudeep Holla
2018-05-17  9:35         ` Greg KH
2018-05-11 23:57 ` [PATCH v9 03/12] cacheinfo: rename of_node to fw_token Jeremy Linton
2018-05-11 23:57 ` [PATCH v9 04/12] arm64/acpi: Create arch specific cpu to acpi id helper Jeremy Linton
2018-05-14 14:41   ` Sudeep Holla
2018-05-11 23:58 ` [PATCH v9 05/12] ACPI/PPTT: Add Processor Properties Topology Table parsing Jeremy Linton
2018-05-12 10:09   ` Rafael J. Wysocki
2018-05-15 21:42     ` Jeremy Linton
2018-05-16  8:24       ` Rafael J. Wysocki
2018-05-11 23:58 ` [PATCH v9 06/12] ACPI: Enable PPTT support on ARM64 Jeremy Linton
2018-05-11 23:58 ` [PATCH v9 07/12] drivers: base cacheinfo: Add support for ACPI based firmware tables Jeremy Linton
2018-05-11 23:58 ` [PATCH v9 08/12] arm64: " Jeremy Linton
2018-05-11 23:58 ` [PATCH v9 09/12] arm64: topology: rename cluster_id Jeremy Linton
2018-05-11 23:58 ` [PATCH v9 10/12] arm64: topology: enable ACPI/PPTT based CPU topology Jeremy Linton
2018-05-11 23:58 ` [PATCH v9 11/12] ACPI: Add PPTT to injectable table list Jeremy Linton
2018-05-12 10:10   ` Rafael J. Wysocki
2018-05-11 23:58 ` [PATCH v9 12/12] arm64: topology: divorce MC scheduling domain from core_siblings Jeremy Linton
2018-05-17 17:05 ` [PATCH v9 00/12] Support PPTT for ARM64 Catalin Marinas
2018-05-29 10:48   ` Geert Uytterhoeven
2018-05-29 11:14     ` Sudeep Holla
2018-05-29 11:56       ` Geert Uytterhoeven
2018-05-29 13:18         ` Sudeep Holla
2018-05-29 15:08           ` Will Deacon
2018-05-29 15:51             ` Geert Uytterhoeven
2018-05-29 17:08               ` Robin Murphy
2018-05-29 17:18                 ` Geert Uytterhoeven [this message]
2018-05-29 17:31                 ` Sudeep Holla
2018-05-29 20:16               ` Will Deacon
2018-05-29 20:48                 ` Jeremy Linton
2018-05-29 21:52               ` Jeremy Linton
2018-05-30 13:24                 ` Sudeep Holla
2018-05-29 15:23           ` Jeremy Linton
2018-05-29 15:50           ` Geert Uytterhoeven
2018-05-30  8:52             ` Morten Rasmussen
2018-06-05 13:55     ` [PATCH 1/3] Revert "arm64: topology: divorce MC scheduling domain from core_siblings" Sudeep Holla
2018-06-05 13:55       ` [PATCH 2/3] ACPI / PPTT: fix build when CONFIG_ACPI_PPTT is not enabled Sudeep Holla
2018-06-05 13:55       ` [PATCH 3/3] arm64: disable ACPI PPTT support temporarily Sudeep Holla
2018-06-05 14:09       ` [PATCH 1/3] Revert "arm64: topology: divorce MC scheduling domain from core_siblings" Geert Uytterhoeven
2018-06-05 14:12         ` Sudeep Holla
2018-06-04 15:12   ` [PATCH v9 00/12] Support PPTT for ARM64 Catalin Marinas

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='CAMuHMdVJdpd_60bN=sxZeqUyPuxfLWFCMPZWyZQ37GAQkGb37g@mail.gmail.com' \
    --to=geert@linux-m68k.org \
    --cc=Dietmar.Eggemann@arm.com \
    --cc=Lorenzo.Pieralisi@arm.com \
    --cc=Mark.Rutland@arm.com \
    --cc=Morten.Rasmussen@arm.com \
    --cc=ahs3@redhat.com \
    --cc=ard.biesheuvel@linaro.org \
    --cc=austinwc@codeaurora.org \
    --cc=catalin.marinas@arm.com \
    --cc=gregkh@linuxfoundation.org \
    --cc=hanjun.guo@linaro.org \
    --cc=jeremy.linton@arm.com \
    --cc=jhugo@codeaurora.org \
    --cc=john.garry@huawei.com \
    --cc=lenb@kernel.org \
    --cc=linux-acpi@vger.kernel.org \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-renesas-soc@vger.kernel.org \
    --cc=linux-riscv@lists.infradead.org \
    --cc=palmer@sifive.com \
    --cc=rjw@rjwysocki.net \
    --cc=robin.murphy@arm.com \
    --cc=sudeep.holla@arm.com \
    --cc=tnowicki@caviumnetworks.com \
    --cc=vkilari@codeaurora.org \
    --cc=wangxiongfeng2@huawei.com \
    --cc=will.deacon@arm.com \
    --subject='Re: [PATCH v9 00/12] Support PPTT for ARM64' \
    /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

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 NNTP newsgroup(s).