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Message-ID: <5258816.hjoiAQk5RS@kreacher>
Date: Wed, 10 Jul 2019 12:03:23 +0200
From: "Rafael J. Wysocki" <rjw@...ysocki.net>
To: Thomas Gleixner <tglx@...utronix.de>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>,
Ingo Molnar <mingo@...nel.org>,
Kees Cook <keescook@...omium.org>,
Linux List Kernel Mailing <linux-kernel@...r.kernel.org>,
Borislav Petkov <bp@...en8.de>, Len Brown <lenb@...nel.org>,
Peter Zijlstra <a.p.zijlstra@...llo.nl>,
Andrew Morton <akpm@...ux-foundation.org>,
"Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
Tony Luck <tony.luck@...el.com>, Jiri Kosina <jkosina@...e.cz>,
Bob Moore <robert.moore@...el.com>,
Erik Schmauss <erik.schmauss@...el.com>
Subject: Re: [GIT PULL] x86/topology changes for v5.3
On Wednesday, July 10, 2019 1:00:32 AM CEST Thomas Gleixner wrote:
> On Wed, 10 Jul 2019, Thomas Gleixner wrote:
> > On Tue, 9 Jul 2019, Linus Torvalds wrote:
> > > I also don't have any logs, because the boot never gets far enough. I
> > > assume that there was a problem bringing up a non-boot CPU, and the
> > > eventual hang ends up being due to that.
> >
> > Hrm. I just build the tip of your tree and bootet it. It hangs at:
> >
> > [ 4.788678] ACPI: 4 ACPI AML tables successfully acquired and loaded
> > [ 4.793860] ACPI: [Firmware Bug]: BIOS _OSI(Linux) query ignored
> > [ 4.821476] ACPI: Dynamic OEM Table Load:
> >
> > That's way after the secondary CPUs have been brought up. tip/master boots
> > without problems with the same config. Let me try x86/asm alone and also a
> > revert of the CR4/CR0 stuff.
>
> x86/asm works alone
>
> revert of cr4/0 pinning on top of your tree gets stuck as well
>
> > And while writing this the softlockup detector muttered:
>
> Have not yet fully bisected it, but Jiri did and he ended up with
>
> c522ad0637ca ("ACPICA: Update table load object initialization")
>
> Reverting that on top of your tree makes it work again. Tony has the same
> issue.
I have a revert of this one queued up (with a plan to push it later today).
Cheers,
Rafael
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