Hi Maik,

Maik Zumstrull wrote:

> This is on an Ivy Bridge Xeon E3 with GPU.
[...]
> 3.2 crashes as well, but not as hard as 3.4. With 3.2, X doesn't come
> up, but you can switch to a console and reboot.

Sorry for the slow reply. Please test the attached patch, for example
using the following instructions.

0. prerequisites

apt-get install git build-essential

1. get the kernel history, if you don't already have it

git clone
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git

2. fetch point releases

cd linux
git remote add stable
git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git
git fetch stable

3. configure, build, test

git checkout stable/linux-3.2.y
cp /boot/config-$(uname -r) .config; # current configuration
scripts/config --disable DEBUG_INFO
make localmodconfig; # optional: minimize configuration
make deb-pkg; # optionally with -j<num> for parallel build
dpkg -i ../<name of package>; # as root
reboot
... test test test ...

Hopefully it reproduces the bug, so

4. try the patch

cd linux
git cherry-pick -x -s cc22a938fc1d
make deb-pkg; # maybe with -j4
dpkg -i ../<name of package>; # as root
reboot
... test test test ...

Hope that helps,
Jonathan
>From b6d96eed4210b287f3916091e7d07760c442410c Mon Sep 17 00:00:00 2001
From: Eugeni Dodonov <eugeni.dodonov@intel.com>
Date: Thu, 29 Mar 2012 20:55:48 -0300
Subject: [PATCH] drm/i915: add Ivy Bridge GT2 Server entries

commit cc22a938fc1db0c8ef5e693a69b159c4b851dab3 upstream.

This adds PCI ID for IVB GT2 server variant which we were missing.

Signed-off-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
[danvet: fix up conflict because the patch has been diffed against next. tsk.]
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
---
drivers/char/agp/intel-agp.h | 1 +
drivers/char/agp/intel-gtt.c | 2 ++
drivers/gpu/drm/i915/i915_drv.c | 1 +
3 files changed, 4 insertions(+)

diff --git a/drivers/char/agp/intel-agp.h b/drivers/char/agp/intel-agp.h
index 6f246049d5b4..439d7e7553b9 100644
--- a/drivers/char/agp/intel-agp.h
+++ b/drivers/char/agp/intel-agp.h
@@ -235,6 +235,7 @@
#define PCI_DEVICE_ID_INTEL_IVYBRIDGE_M_GT2_IG 0x0166
#define PCI_DEVICE_ID_INTEL_IVYBRIDGE_S_HB 0x0158 /* Server */
#define PCI_DEVICE_ID_INTEL_IVYBRIDGE_S_GT1_IG 0x015A
+#define PCI_DEVICE_ID_INTEL_IVYBRIDGE_S_GT2_IG 0x016A

int intel_gmch_probe(struct pci_dev *pdev,
struct agp_bridge_data *bridge);
diff --git a/drivers/char/agp/intel-gtt.c b/drivers/char/agp/intel-gtt.c
index c92424ca1a55..43c4ec3e4e39 100644
--- a/drivers/char/agp/intel-gtt.c
+++ b/drivers/char/agp/intel-gtt.c
@@ -1459,6 +1459,8 @@ static const struct intel_gtt_driver_description {
"Ivybridge", &sandybridge_gtt_driver },
{ PCI_DEVICE_ID_INTEL_IVYBRIDGE_S_GT1_IG,
"Ivybridge", &sandybridge_gtt_driver },
+ { PCI_DEVICE_ID_INTEL_IVYBRIDGE_S_GT2_IG,
+ "Ivybridge", &sandybridge_gtt_driver },
{ 0, NULL, NULL }
};

diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 3a1bfd794696..452bc512e6a7 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -287,6 +287,7 @@ static const struct pci_device_id pciidlist[] = { /* aka */
INTEL_VGA_DEVICE(0x0152, &intel_ivybridge_d_info), /* GT1 desktop */
INTEL_VGA_DEVICE(0x0162, &intel_ivybridge_d_info), /* GT2 desktop */
INTEL_VGA_DEVICE(0x015a, &intel_ivybridge_d_info), /* GT1 server */
+ INTEL_VGA_DEVICE(0x016a, &intel_ivybridge_d_info), /* GT2 server */
{0, 0, 0}
};

--
1.7.10.4

On Sun, Sep 30, 2012 at 1:52 AM, Jonathan Nieder <jrnieder@gmail.com> wrote:
> Hi Maik,
>
> Maik Zumstrull wrote:
>
>> This is on an Ivy Bridge Xeon E3 with GPU.
> [...]
>> 3.2 crashes as well, but not as hard as 3.4. With 3.2, X doesn't come
>> up, but you can switch to a console and reboot.
>
> Sorry for the slow reply. Please test the attached patch, for example
> using the following instructions.

With those instructions and with the patch, 3.2.30 can bring up i915
KMS. Without the patch, it cannot. Seems to hit the spot.


--
To UNSUBSCRIBE, email to debian-kernel-REQUEST@lists.debian.org
with a subject of "unsubscribe". Trouble? Contact listmaster@lists.debian.org
Archive: http://lists.debian.org/CAO=zWD+aBgNN3bL8Frvi1pgDhkZKfWUO3B8xt8J3GMha+fmxA g@mail.gmail.com

tags 684767 - moreinfo
forwarded 684767 http://thread.gmane.org/gmane.comp.freedesktop.xorg.drivers.intel/14516
quit

Maik Zumstrull wrote:

> With those instructions and with the patch, 3.2.30 can bring up i915
> KMS. Without the patch, it cannot. Seems to hit the spot.

Passed upstream, thanks.


--
To UNSUBSCRIBE, email to debian-kernel-REQUEST@lists.debian.org
with a subject of "unsubscribe". Trouble? Contact listmaster@lists.debian.org
Archive: http://lists.debian.org/20121001103001.GB8959@elie.Belkin