From: Dave Jones <davej@redhat.com>
To: Bjorn Helgaas <bhelgaas@google.com>
Cc: Borislav Petkov <bp@alien8.de>,
"Rafael J. Wysocki" <rjw@rjwysocki.net>,
"Zhang, Rui" <rui.zhang@intel.com>,
"Lu, Aaron" <aaron.lu@intel.com>,
lkml <linux-kernel@vger.kernel.org>,
"x86@kernel.org" <x86@kernel.org>,
Linux PCI <linux-pci@vger.kernel.org>,
ACPI Devel Maling List <linux-acpi@vger.kernel.org>,
Yinghai Lu <yinghai@kernel.org>, "H. Peter Anvin" <hpa@zytor.com>,
Stephane Eranian <eranian@google.com>,
"Yan, Zheng Z" <zheng.z.yan@intel.com>,
daniel.vetter@ffwll.ch
Subject: Re: Info: mapping multiple BARs. Your kernel is fine.
Date: Thu, 17 Apr 2014 15:52:40 -0400 [thread overview]
Message-ID: <20140417195240.GA18876@redhat.com> (raw)
In-Reply-To: <20140417182637.GA2098@google.com>
On Thu, Apr 17, 2014 at 12:26:37PM -0600, Bjorn Helgaas wrote:
> Thanks a lot for testing this out and debugging my issues.
>
> Here's a new version that looks for both device IDs I know about.
I can confirm this patch does fix the backtrace.
I disabled lockdep, and now I can get to X each boot, but I still see
a black screen rather than a console between modesetting becoming active, and X starting.
(The lockdep thing turned out to be a known XFS false positive, but for
some reason it actually caused X to lock up)
> I'm still nervous about the modeset problem Dave is seeing. Since the
> original patch wouldn't find an 8086:0c00 device on Dave's system, it
> should have done nothing. But since it caused a modesetting problem,
> there's something else doing on that I don't understand.
I don't know if it's relevant, but this laptop (and I suspect many other
thinkpads which seem affected) have dual gfx, both show up on the bus,
even if though the nvidia isn't in use..
00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09) (prog-if 00 [VGA controller])
Subsystem: Lenovo Device 2200
Flags: bus master, fast devsel, latency 0, IRQ 44
Memory at f1000000 (64-bit, non-prefetchable) [size=4M]
Memory at e0000000 (64-bit, prefetchable) [size=256M]
I/O ports at 6000 [size=64]
Expansion ROM at <unassigned> [disabled]
Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit-
Capabilities: [d0] Power Management version 2
Capabilities: [a4] PCI Advanced Features
Kernel driver in use: i915
01:00.0 3D controller: NVIDIA Corporation GF117M [GeForce 610M/710M/820M / GT 620M/625M/630M/720M] (rev a1)
Subsystem: Lenovo NVS 5200M
Flags: bus master, fast devsel, latency 0, IRQ 11
Memory at f0000000 (32-bit, non-prefetchable) [size=16M]
Memory at c0000000 (64-bit, prefetchable) [size=256M]
Memory at d0000000 (64-bit, prefetchable) [size=32M]
I/O ports at 5000 [size=128]
Expansion ROM at <ignored> [disabled]
Capabilities: [60] Power Management version 3
Capabilities: [68] MSI: Enable- Count=1/1 Maskable- 64bit+
Capabilities: [78] Express Endpoint, MSI 00
Capabilities: [b4] Vendor Specific Information: Len=14 <?>
Capabilities: [100] Virtual Channel
Capabilities: [128] Power Budgeting <?>
Capabilities: [600] Vendor Specific Information: ID=0001 Rev=1 Len=024 <?>
Just as X starts up, I see this in dmesg..
[ 42.879049] [drm:cpt_serr_int_handler] *ERROR* PCH transcoder A FIFO underrun
Dave
next prev parent reply other threads:[~2014-04-17 19:53 UTC|newest]
Thread overview: 61+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-02-24 16:24 Info: mapping multiple BARs. Your kernel is fine Borislav Petkov
2014-02-24 20:19 ` Borislav Petkov
2014-02-25 15:48 ` H. Peter Anvin
2014-02-25 16:14 ` Stephane Eranian
2014-02-25 16:30 ` Borislav Petkov
2014-02-25 16:33 ` Stephane Eranian
2014-02-25 17:39 ` Borislav Petkov
2014-02-25 18:54 ` Stephane Eranian
2014-02-25 22:10 ` Borislav Petkov
2014-02-26 6:56 ` Stephane Eranian
2014-02-26 9:29 ` Borislav Petkov
2014-02-26 9:47 ` Stephane Eranian
2014-02-26 9:59 ` Borislav Petkov
2014-02-27 10:12 ` Stephane Eranian
2014-02-27 10:27 ` Borislav Petkov
2014-02-27 22:12 ` Rafael J. Wysocki
2014-02-27 22:21 ` Borislav Petkov
2014-03-05 21:03 ` Stephane Eranian
2014-02-27 10:30 ` Peter Zijlstra
2014-02-27 10:32 ` Stephane Eranian
2014-02-27 11:08 ` Peter Zijlstra
2014-02-27 12:20 ` Stephane Eranian
2014-02-26 13:57 ` Rafael J. Wysocki
2014-02-26 13:50 ` Peter Zijlstra
2014-02-26 13:52 ` Borislav Petkov
2014-03-15 14:15 ` Rafael J. Wysocki
2014-03-16 11:55 ` Borislav Petkov
2014-03-16 13:08 ` Stephane Eranian
2014-03-17 0:09 ` Rafael J. Wysocki
2014-03-17 0:23 ` Rafael J. Wysocki
2014-03-20 2:24 ` Aaron Lu
2014-03-20 2:29 ` Stephane Eranian
2014-03-20 3:03 ` Zhang, Rui
2014-03-20 3:34 ` Stephane Eranian
2014-03-20 7:53 ` Zhang, Rui
2014-03-20 8:16 ` Yan, Zheng
2014-03-20 13:43 ` Zhang Rui
2014-03-20 16:03 ` Stephane Eranian
2014-03-20 13:35 ` Zhang Rui
2014-03-20 12:29 ` Rafael J. Wysocki
2014-03-20 16:45 ` Bjorn Helgaas
2014-03-20 20:55 ` Rafael J. Wysocki
2014-03-20 20:48 ` Bjorn Helgaas
2014-04-16 19:04 ` Borislav Petkov
2014-04-16 20:24 ` Zhang, Rui
2014-04-16 20:31 ` Bjorn Helgaas
2014-04-16 22:31 ` Dave Jones
2014-04-16 22:56 ` Bjorn Helgaas
2014-04-17 0:18 ` Dave Jones
2014-04-17 10:45 ` Borislav Petkov
2014-04-17 18:26 ` Bjorn Helgaas
2014-04-17 19:48 ` Borislav Petkov
2014-04-17 20:10 ` Bjorn Helgaas
2014-04-17 19:52 ` Dave Jones [this message]
2014-04-17 20:01 ` Borislav Petkov
2014-04-17 20:03 ` Dave Jones
2014-04-17 20:53 ` Dave Jones
2014-04-17 21:01 ` Borislav Petkov
[not found] ` <20140417213027.GA22412@redhat.com>
2014-04-18 10:38 ` Borislav Petkov
2014-04-16 23:08 ` Stephane Eranian
2014-04-16 23:11 ` Bjorn Helgaas
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