From: Borislav Petkov <bp@alien8.de>
To: Tyler Baicar <tbaicar@codeaurora.org>
Cc: James Morse <james.morse@arm.com>,
linux-acpi@vger.kernel.org, kvmarm@lists.cs.columbia.edu,
linux-arm-kernel@lists.infradead.org, linux-mm@kvack.org,
Marc Zyngier <marc.zyngier@arm.com>,
Christoffer Dall <cdall@kernel.org>,
Will Deacon <will.deacon@arm.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>,
Rafael Wysocki <rjw@rjwysocki.net>, Len Brown <lenb@kernel.org>,
Tony Luck <tony.luck@intel.com>,
Dongjiu Geng <gengdongjiu@huawei.com>,
Xie XiuQi <xiexiuqi@huawei.com>,
Punit Agrawal <punit.agrawal@arm.com>,
jonathan.zhang@cavium.com, Thomas Gleixner <tglx@linutronix.de>
Subject: Re: [PATCH v3 07/12] ACPI / APEI: Make the nmi_fixmap_idx per-ghes to allow multiple in_nmi() users
Date: Thu, 17 May 2018 15:39:24 +0200 [thread overview]
Message-ID: <20180517133924.GB27738@pd.tnic> (raw)
In-Reply-To: <39bde8c5-4dfb-c1b9-02a4-ba467539ea24@codeaurora.org>
On Wed, May 16, 2018 at 11:38:16AM -0400, Tyler Baicar wrote:
> I haven't seen a deadlock from that, but it looks possible. What if
> the ghes_proc() call in ghes_probe() is moved before the second switch
> statement? That way it is before the NMI/IRQ/poll is setup. At quick
> glance I think that should avoid the deadlock and still provide the
> functionality that call was added for. I can test that out if you all
> agree.
Makes sense but please audit it properly before doing the change. That
code is full of landmines and could use a proper scrubbing first.
Thx.
--
Regards/Gruss,
Boris.
Good mailing practices for 400: avoid top-posting and trim the reply.
next prev parent reply other threads:[~2018-05-17 13:39 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-04-27 15:34 [PATCH v3 00/12] APEI in_nmi() rework and arm64 SDEI wire-up James Morse
2018-04-27 15:34 ` [PATCH v3 01/12] ACPI / APEI: Move the estatus queue code up, and under its own ifdef James Morse
2018-05-01 10:43 ` Punit Agrawal
2018-05-01 12:50 ` James Morse
2018-05-05 9:58 ` Borislav Petkov
2018-04-27 15:35 ` [PATCH v3 02/12] ACPI / APEI: Generalise the estatus queue's add/remove and notify code James Morse
2018-05-05 10:12 ` Borislav Petkov
2018-04-27 15:35 ` [PATCH v3 03/12] ACPI / APEI: don't wait to serialise with oops messages when panic()ing James Morse
2018-04-27 15:35 ` [PATCH v3 04/12] ACPI / APEI: Switch NOTIFY_SEA to use the estatus queue James Morse
2018-04-27 15:35 ` [PATCH v3 05/12] KVM: arm/arm64: Add kvm_ras.h to collect kvm specific RAS plumbing James Morse
2018-04-27 15:35 ` [PATCH v3 06/12] arm64: KVM/mm: Move SEA handling behind a single 'claim' interface James Morse
2018-04-27 15:35 ` [PATCH v3 07/12] ACPI / APEI: Make the nmi_fixmap_idx per-ghes to allow multiple in_nmi() users James Morse
2018-05-05 12:27 ` Borislav Petkov
2018-05-08 8:45 ` James Morse
2018-05-16 11:05 ` Borislav Petkov
2018-05-16 14:51 ` James Morse
2018-05-17 13:36 ` Borislav Petkov
2018-05-17 18:11 ` James Morse
2018-05-16 15:38 ` Tyler Baicar
2018-05-17 13:39 ` Borislav Petkov [this message]
2018-04-27 15:35 ` [PATCH v3 08/12] ACPI / APEI: Split fixmap pages for arm64 NMI-like notifications James Morse
2018-04-27 15:35 ` [PATCH v3 09/12] firmware: arm_sdei: Add ACPI GHES registration helper James Morse
2018-04-27 15:35 ` [PATCH v3 10/12] ACPI / APEI: Add support for the SDEI GHES Notification type James Morse
2018-04-27 15:35 ` [PATCH v3 11/12] mm/memory-failure: increase queued recovery work's priority James Morse
2018-04-27 15:35 ` [PATCH v3 12/12] arm64: acpi: Make apei_claim_sea() synchronise with APEI's irq work James Morse
2018-05-01 20:15 ` [PATCH v3 00/12] APEI in_nmi() rework and arm64 SDEI wire-up Tyler Baicar
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=20180517133924.GB27738@pd.tnic \
--to=bp@alien8.de \
--cc=catalin.marinas@arm.com \
--cc=cdall@kernel.org \
--cc=gengdongjiu@huawei.com \
--cc=james.morse@arm.com \
--cc=jonathan.zhang@cavium.com \
--cc=kvmarm@lists.cs.columbia.edu \
--cc=lenb@kernel.org \
--cc=linux-acpi@vger.kernel.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-mm@kvack.org \
--cc=marc.zyngier@arm.com \
--cc=n-horiguchi@ah.jp.nec.com \
--cc=punit.agrawal@arm.com \
--cc=rjw@rjwysocki.net \
--cc=tbaicar@codeaurora.org \
--cc=tglx@linutronix.de \
--cc=tony.luck@intel.com \
--cc=will.deacon@arm.com \
--cc=xiexiuqi@huawei.com \
/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 NNTP newsgroup(s).