LKML Archive on lore.kernel.org
 help / color / Atom feed
From: Chris Wilson <chris@chris-wilson.co.uk>
To: Linus Torvalds <torvalds@linux-foundation.org>,
	Linux List Kernel Mailing <linux-kernel@vger.kernel.org>
Cc: Bandan Das <bsd@redhat.com>, Thomas Gleixner <tglx@linutronix.de>
Subject: Re: Linux 5.3-rc7
Date: Sat, 07 Sep 2019 11:10:05 +0100
Message-ID: <156785100521.13300.14461504732265570003@skylake-alporthouse-com> (raw)
In-Reply-To: <CAHk-=wi_nBULUyO=OKtNBCZ+VSqdOcEiUeFqXTQY_D5ga5k4gQ@mail.gmail.com>

Quoting Linus Torvalds (2019-09-02 18:28:26)
> Bandan Das:
>       x86/apic: Include the LDR when clearing out APIC registers

Apologies if this is known already, I'm way behind on email.

I've bisected

[   18.693846] smpboot: CPU 0 is now offline
[   19.707737] smpboot: Booting Node 0 Processor 0 APIC 0x0
[   29.707602] smpboot: do_boot_cpu failed(-1) to wakeup CPU#0

https://intel-gfx-ci.01.org/tree/drm-tip/igt@perf_pmu@cpu-hotplug.html

to 558682b52919. (Reverts cleanly and fixes the problem.)

I'm guessing that this is also behind the suspend failures, missing
/dev/cpu/0/msr, and random perf_event_open() failures we have observed
in our CI since -rc7 across all generations of Intel cpus.
-Chris

  reply index

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-09-02 17:28 Linus Torvalds
2019-09-07 10:10 ` Chris Wilson [this message]
2019-09-07 14:29   ` Thomas Gleixner
2019-09-07 14:41     ` Chris Wilson
2019-09-07 15:00       ` Thomas Gleixner
2019-09-07 15:24         ` Chris Wilson
2019-09-07 20:12           ` Thomas Gleixner
2019-09-07 19:17         ` Linus Torvalds
2019-09-07 19:27           ` Linus Torvalds
2019-09-09 13:54             ` Bandan Das
2019-09-07 20:44           ` Thomas Gleixner
2019-09-07 21:13             ` Linus Torvalds
2019-09-08 11:02               ` Sasha Levin

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=156785100521.13300.14461504732265570003@skylake-alporthouse-com \
    --to=chris@chris-wilson.co.uk \
    --cc=bsd@redhat.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=tglx@linutronix.de \
    --cc=torvalds@linux-foundation.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

LKML Archive on lore.kernel.org

Archives are clonable:
	git clone --mirror https://lore.kernel.org/lkml/0 lkml/git/0.git
	git clone --mirror https://lore.kernel.org/lkml/1 lkml/git/1.git
	git clone --mirror https://lore.kernel.org/lkml/2 lkml/git/2.git
	git clone --mirror https://lore.kernel.org/lkml/3 lkml/git/3.git
	git clone --mirror https://lore.kernel.org/lkml/4 lkml/git/4.git
	git clone --mirror https://lore.kernel.org/lkml/5 lkml/git/5.git
	git clone --mirror https://lore.kernel.org/lkml/6 lkml/git/6.git
	git clone --mirror https://lore.kernel.org/lkml/7 lkml/git/7.git
	git clone --mirror https://lore.kernel.org/lkml/8 lkml/git/8.git
	git clone --mirror https://lore.kernel.org/lkml/9 lkml/git/9.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 lkml lkml/ https://lore.kernel.org/lkml \
		linux-kernel@vger.kernel.org
	public-inbox-index lkml

Example config snippet for mirrors

Newsgroup available over NNTP:
	nntp://nntp.lore.kernel.org/org.kernel.vger.linux-kernel


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git