i915 GPU-hang regression in v5.6-rcx

i915 GPU-hang regression in v5.6-rcx

[Jörg Otte]

In v5.6-rcx I sporadically see a hanging GPU.

[  640.919302] i915 0000:00:02.0: Resetting chip for stopped heartbeat on rcs0
[  641.021808] i915 0000:00:02.0: Xorg[722] context reset due to GPU hang

[ 2229.764709] i915 0000:00:02.0: Resetting chip for stopped heartbeat on rcs0
[ 2229.867534] i915 0000:00:02.0: kwin_x11[1005] context reset due to GPU hang

To recover Xorg must be killed and restarted or reboot is required.
I've never seen this before v5.6-rcx.

Best way to reproduce seem to be "heavily scrolling with the mouse wheel"
in graphic applications. I also saw this once while video streaming in
a browser.


System:  Host: fichte Kernel: 5.6.0-rc1 x86_64 bits: 64 Console: tty 3
Distro: Ubuntu 18.04.3 LTS
Machine: Device: Notebook System: FUJITSU product: LIFEBOOK A544
serial: <filter>
         Mobo: FUJITSU model: FJNBB35 serial: <filter>
         BIOS: FUJITSU // Phoenix v: Version 1.17 rv 1.17 date: 05/09/2014
CPU:     Dual core Intel Core i5-4200M (-MT-MCP-) cache: 3072 KB
         clock speeds: max: 3100 MHz 1: 1127 MHz 2: 964 MHz 3: 1034
MHz 4: 984 MHz
Graphics:Card: Intel 4th Gen Core Processor Integrated Graphics Controller
         Display Server: X.Org 1.19.6 drivers: modesetting (unloaded:
fbdev,vesa) Resolution: 1366x768@60.00hz
         OpenGL: renderer: Mesa DRI Intel Haswell Mobile version: 4.5
Mesa 19.2.8


Thanks, Jörg

Re: i915 GPU-hang regression in v5.6-rcx

[Linus Torvalds]

Let's add in some of the i915 people and list.

Everything quoted below for the new participants.

              Linus

On Mon, Feb 24, 2020 at 2:52 AM Jörg Otte <jrg.otte@gmail.com> wrote:
>
> In v5.6-rcx I sporadically see a hanging GPU.
>
> [  640.919302] i915 0000:00:02.0: Resetting chip for stopped heartbeat on rcs0
> [  641.021808] i915 0000:00:02.0: Xorg[722] context reset due to GPU hang
>
> [ 2229.764709] i915 0000:00:02.0: Resetting chip for stopped heartbeat on rcs0
> [ 2229.867534] i915 0000:00:02.0: kwin_x11[1005] context reset due to GPU hang
>
> To recover Xorg must be killed and restarted or reboot is required.
> I've never seen this before v5.6-rcx.
>
> Best way to reproduce seem to be "heavily scrolling with the mouse wheel"
> in graphic applications. I also saw this once while video streaming in
> a browser.
>
>
> System:  Host: fichte Kernel: 5.6.0-rc1 x86_64 bits: 64 Console: tty 3
> Distro: Ubuntu 18.04.3 LTS
> Machine: Device: Notebook System: FUJITSU product: LIFEBOOK A544
> serial: <filter>
>          Mobo: FUJITSU model: FJNBB35 serial: <filter>
>          BIOS: FUJITSU // Phoenix v: Version 1.17 rv 1.17 date: 05/09/2014
> CPU:     Dual core Intel Core i5-4200M (-MT-MCP-) cache: 3072 KB
>          clock speeds: max: 3100 MHz 1: 1127 MHz 2: 964 MHz 3: 1034
> MHz 4: 984 MHz
> Graphics:Card: Intel 4th Gen Core Processor Integrated Graphics Controller
>          Display Server: X.Org 1.19.6 drivers: modesetting (unloaded:
> fbdev,vesa) Resolution: 1366x768@60.00hz
>          OpenGL: renderer: Mesa DRI Intel Haswell Mobile version: 4.5
> Mesa 19.2.8
>
>
> Thanks, Jörg

Re: i915 GPU-hang regression in v5.6-rcx

[Chris Wilson]

Quoting Linus Torvalds (2020-02-24 20:18:03)
> Let's add in some of the i915 people and list.

Haswell eating kittens. The offending patch will be rolled back shortly.
-Chris

Re: i915 GPU-hang regression in v5.6-rcx

[Dave Airlie]

On Tue, 25 Feb 2020 at 07:13, Chris Wilson <chris@chris-wilson.co.uk> wrote:
>
> Quoting Linus Torvalds (2020-02-24 20:18:03)
> > Let's add in some of the i915 people and list.
>
> Haswell eating kittens. The offending patch will be rolled back shortly.
> -Chris

https://patchwork.freedesktop.org/patch/354775/

is the patch that is working it's way through the system.

Dave.

Re: i915 GPU-hang regression in v5.6-rcx

[Jörg Otte]

Am Di., 25. Feb. 2020 um 04:33 Uhr schrieb Dave Airlie <airlied@gmail.com>:
>
> On Tue, 25 Feb 2020 at 07:13, Chris Wilson <chris@chris-wilson.co.uk> wrote:
> >
> > Quoting Linus Torvalds (2020-02-24 20:18:03)
> > > Let's add in some of the i915 people and list.
> >
> > Haswell eating kittens. The offending patch will be rolled back shortly.
> > -Chris
>
> https://patchwork.freedesktop.org/patch/354775/
>
> is the patch that is working it's way through the system.
>
> Dave.

With this patch I get no more hanging GPU.  Looks very good for me.

Thanks, Jörg