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From: Thomas Gleixner <tglx@linutronix.de>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Bjorn Helgaas <helgaas@kernel.org>,
	Maarten Lankhorst <dev@mblankhorst.nl>,
	Michal Hocko <mhocko@kernel.org>,
	"Rafael J. Wysocki" <rjw@rjwysocki.net>,
	Andy Lutomirski <luto@kernel.org>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	the arch/x86 maintainers <x86@kernel.org>,
	Daniel Vetter <daniel.vetter@intel.com>,
	Bjorn Helgaas <bhelgaas@google.com>,
	"Rafael J. Wysocki" <rafael.j.wysocki@intel.com>,
	linux-pci@vger.kernel.org, linux-pm@vger.kernel.org
Subject: Re: Linux 4.15-rc2: Regression in resume from ACPI S3
Date: Fri, 15 Dec 2017 10:05:23 +0100 (CET)	[thread overview]
Message-ID: <alpine.DEB.2.20.1712151000260.1702@nanos> (raw)
In-Reply-To: <CA+55aFzEt3hspSXgA28emi7aka0wQc8SaC=wdVKp=DtmbptQTQ@mail.gmail.com>

On Thu, 14 Dec 2017, Linus Torvalds wrote:

> On Thu, Dec 14, 2017 at 2:36 PM, Thomas Gleixner <tglx@linutronix.de> wrote:
> >
> > But, because the silly firmware comes out of suspend with all PIC lines
> > unmasked for whatever reason, the PIC can observe that IRQ being raised and
> > the CPU not handling it. So yes, I forgot about 7 being magic, but I still
> > think it's the firmware which causes it by unmasking the PIC irqs.
> 
> Yes, that sounds quite likely.

And just for the record I was able to figure out which interrupt comes in
and goes away again. It's the only level triggered interrupt, which is the
ACPI interrupt.....

Thanks,

	tglx

  reply	other threads:[~2017-12-15  9:05 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <168050887.sZlTFXWCmO@aspire.rjw.lan>
     [not found] ` <CA+55aFwsMuHUBQz5kDNwRf17JnasXMWjvmLq5qXGH-694yeq1w@mail.gmail.com>
     [not found]   ` <20171206121452.GA6320@dhcp22.suse.cz>
     [not found]     ` <db81e89d-eee6-868c-dc10-c028f4c4be84@mblankhorst.nl>
     [not found]       ` <alpine.DEB.2.20.1712061344560.1724@nanos>
     [not found]         ` <0f1d3d63-fa10-5cef-8014-81753dc60243@mblankhorst.nl>
     [not found]           ` <alpine.DEB.2.20.1712061514420.1724@nanos>
     [not found]             ` <57c8679e-1b88-c9ad-2299-2bea7560b28f@mblankhorst.nl>
     [not found]               ` <alpine.DEB.2.20.1712081129450.1840@nanos>
     [not found]                 ` <alpine.DEB.2.20.1712131507160.1885@nanos>
2017-12-13 16:23                   ` Linux 4.15-rc2: Regression in resume from ACPI S3 Bjorn Helgaas
2017-12-13 16:41                     ` Thomas Gleixner
2017-12-13 17:45                       ` Linus Torvalds
2017-12-13 18:19                         ` Thomas Gleixner
2017-12-13 20:52                           ` Thomas Gleixner
2017-12-13 21:06                             ` Thomas Gleixner
2017-12-13 22:48                               ` Rafael J. Wysocki
2017-12-14 11:54                               ` Thomas Gleixner
2017-12-14 12:12                                 ` Rafael J. Wysocki
2017-12-14 12:30                                   ` Thomas Gleixner
2017-12-14 15:30                                     ` Rafael J. Wysocki
2017-12-14 15:52                                       ` Thomas Gleixner
2017-12-14 15:54                                         ` Rafael J. Wysocki
2017-12-14 16:17                                           ` Maarten Lankhorst
2017-12-15  2:07                                           ` [PATCH] PCI / PM: Force devices to D0 in pci_pm_thaw_noirq() Rafael J. Wysocki
2017-12-15 14:28                                             ` Rafael J. Wysocki
2017-12-15 18:30                                             ` Bjorn Helgaas
2017-12-15 23:44                                               ` Rafael J. Wysocki
2017-12-14 13:24                                 ` Linux 4.15-rc2: Regression in resume from ACPI S3 Thomas Gleixner
2017-12-14 19:03                                 ` Linus Torvalds
2017-12-14 22:36                                   ` Thomas Gleixner
2017-12-14 22:47                                     ` Linus Torvalds
2017-12-15  9:05                                       ` Thomas Gleixner [this message]
2017-12-15  0:34                                     ` Rafael J. Wysocki
2017-12-13 22:39                           ` Rafael J. Wysocki
2017-12-13 23:26                             ` Rafael J. Wysocki

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