[Bug 88364] Xorg hangs after videocard switching

[Bug 88364] Xorg hangs after videocard switching

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=88364

            Bug ID: 88364
           Summary: Xorg hangs after videocard switching
           Product: DRI
           Version: DRI git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: major
          Priority: medium
         Component: DRM/Radeon
          Assignee: dri-devel@lists.freedesktop.org
          Reporter: lissamour@gmail.com

Created attachment 112158
  --> https://bugs.freedesktop.org/attachment.cgi?id=112158&action=edit
dmesg log

steps to reproduce:
1. launch anything through discrete videocard e. g. DRI_PRIME=1 glxgears

I expected that program will run through discrete videocard, but after little
time xorg hanged.

Ubuntu 14.10 64-bit, kernel 3.18.1, lastest mesa and drivers from oibaf ppa.

0a:00.0 Display controller: Advanced Micro Devices, Inc. [AMD/ATI] Sun LE
[Radeon HD 8550M / R5 M230] (rev ff)
00:02.0 VGA compatible controller: Intel Corporation Haswell-ULT Integrated
Graphics Controller (rev 0b)

cat /sys/kernel/debug/vgaswitcheroo/switch 
0:IGD:+:Pwr:0000:00:02.0
1:DIS: :DynOff:0000:0a:00.0

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[Bug 88364] Xorg hangs after videocard switching

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https://bugs.freedesktop.org/show_bug.cgi?id=88364

--- Comment #1 from Liss <lissamour@gmail.com> ---
Also, sometimes Xorg doesn't hang, but than, if I try to run something again I
see that it runs though llvmpipe.

LIBGL_DEBUG=verbose DRI_PRIME=1 glxgears -info
libGL: screen 0 does not appear to be DRI3 capable
libGL error: failed to open drm device: Invalid argument
libGL error: failed to load driver: radeonsi
libGL: OpenDriver: trying /usr/lib/x86_64-linux-gnu/dri/tls/swrast_dri.so
libGL: OpenDriver: trying /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
libGL: Can't open configuration file /home/lissamour/.drirc: No such file or
directory.
libGL: Can't open configuration file /home/lissamour/.drirc: No such file or
directory.
GL_RENDERER   = Gallium 0.4 on llvmpipe (LLVM 3.5, 128 bits)
GL_VERSION    = 3.0 Mesa 10.5.0-devel (git-bed6f20 2015-01-13 utopic-oibaf-ppa)
GL_VENDOR     = VMware, Inc.

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[Bug 88364] Xorg hangs after videocard switching

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https://bugs.freedesktop.org/show_bug.cgi?id=88364

--- Comment #2 from Liss <lissamour@gmail.com> ---
Looks like I found some regularity in the behavior of my Radeon card.
I I'll try to run something with Radeon after cold start my Xorg will hang. In
dmesg I can found next log:
[  176.277431] radeon 0000:0a:00.0: ring 0 stalled for more than 10368msec
[  176.277443] radeon 0000:0a:00.0: GPU lockup (current fence id
0x000000000000008f last fence id 0x0000000000000092 on ring 0)
[  176.854734] radeon 0000:0a:00.0: Saved 81 dwords of commands on ring 0.
[  176.854802] radeon 0000:0a:00.0: GPU softreset: 0x00000049
[  176.854805] radeon 0000:0a:00.0:   GRBM_STATUS               = 0xE7D28028
[  176.854808] radeon 0000:0a:00.0:   GRBM_STATUS_SE0           = 0xEDC00000
[  176.854810] radeon 0000:0a:00.0:   GRBM_STATUS_SE1           = 0x00000006
[  176.854813] radeon 0000:0a:00.0:   SRBM_STATUS               = 0x200000C0
[  176.854870] radeon 0000:0a:00.0:   SRBM_STATUS2              = 0x00000000
[  176.854872] radeon 0000:0a:00.0:   R_008674_CP_STALLED_STAT1 = 0x00000000
[  176.854875] radeon 0000:0a:00.0:   R_008678_CP_STALLED_STAT2 = 0x00010800
[  176.854878] radeon 0000:0a:00.0:   R_00867C_CP_BUSY_STAT     = 0x00408006
[  176.854880] radeon 0000:0a:00.0:   R_008680_CP_STAT          = 0x84038647
[  176.854883] radeon 0000:0a:00.0:   R_00D034_DMA_STATUS_REG   = 0x44C83D57
[  176.854886] radeon 0000:0a:00.0:   R_00D834_DMA_STATUS_REG   = 0x44C83D57
[  176.854888] radeon 0000:0a:00.0:   VM_CONTEXT1_PROTECTION_FAULT_ADDR  
0x00000000
[  176.854891] radeon 0000:0a:00.0:   VM_CONTEXT1_PROTECTION_FAULT_STATUS
0x00000000
[  177.427677] radeon 0000:0a:00.0: GRBM_SOFT_RESET=0x0000DDFF
[  177.427732] radeon 0000:0a:00.0: SRBM_SOFT_RESET=0x00000100
[  177.427887] radeon 0000:0a:00.0:   GRBM_STATUS               = 0x8000B028
[  177.427889] radeon 0000:0a:00.0:   GRBM_STATUS_SE0           = 0x00000006
[  177.427892] radeon 0000:0a:00.0:   GRBM_STATUS_SE1           = 0x00000006
[  177.427894] radeon 0000:0a:00.0:   SRBM_STATUS               = 0x200000C0
[  177.427951] radeon 0000:0a:00.0:   SRBM_STATUS2              = 0x00000000
[  177.427954] radeon 0000:0a:00.0:   R_008674_CP_STALLED_STAT1 = 0x00000000
[  177.427956] radeon 0000:0a:00.0:   R_008678_CP_STALLED_STAT2 = 0x00000000
[  177.427959] radeon 0000:0a:00.0:   R_00867C_CP_BUSY_STAT     = 0x00000000
[  177.427961] radeon 0000:0a:00.0:   R_008680_CP_STAT          = 0x00000000
[  177.427964] radeon 0000:0a:00.0:   R_00D034_DMA_STATUS_REG   = 0x44C83D57
[  177.427966] radeon 0000:0a:00.0:   R_00D834_DMA_STATUS_REG   = 0x44C83D57
[  177.428090] radeon 0000:0a:00.0: GPU reset succeeded, trying to resume
[  177.440734] [drm] probing gen 2 caps for device 8086:9c18 = 5323c42/0
[  177.440739] [drm] PCIE gen 2 link speeds already enabled
[  177.440912] [drm] PCIE GART of 1024M enabled (table at 0x0000000000040000).
[  177.441017] radeon 0000:0a:00.0: WB enabled
[  177.441020] radeon 0000:0a:00.0: fence driver on ring 0 use gpu addr
0x0000000040000c00 and cpu addr 0xffff880036b55c00
[  177.441022] radeon 0000:0a:00.0: fence driver on ring 1 use gpu addr
0x0000000040000c04 and cpu addr 0xffff880036b55c04
[  177.441024] radeon 0000:0a:00.0: fence driver on ring 2 use gpu addr
0x0000000040000c08 and cpu addr 0xffff880036b55c08
[  177.441026] radeon 0000:0a:00.0: fence driver on ring 3 use gpu addr
0x0000000040000c0c and cpu addr 0xffff880036b55c0c
[  177.441028] radeon 0000:0a:00.0: fence driver on ring 4 use gpu addr
0x0000000040000c10 and cpu addr 0xffff880036b55c10
[  177.830669] [drm:r600_ring_test [radeon]] *ERROR* radeon: ring 0 test failed
(scratch(0x850C)=0xCAFEDEAD)
[  177.830698] [drm:si_resume [radeon]] *ERROR* si startup failed on resume

If I restart notebook and try to run something again I'll get black window
(Xorg will continue to work) and next dmesg log:
[  860.035779] [drm] probing gen 2 caps for device 8086:9c18 = 5323c42/0
[  860.035788] [drm] PCIE gen 2 link speeds already enabled
[  860.037672] [drm] PCIE GART of 1024M enabled (table at 0x0000000000040000).
[  860.037836] radeon 0000:0a:00.0: WB enabled
[  860.037842] radeon 0000:0a:00.0: fence driver on ring 0 use gpu addr
0x0000000040000c00 and cpu addr 0xffff8801584dcc00
[  860.037846] radeon 0000:0a:00.0: fence driver on ring 1 use gpu addr
0x0000000040000c04 and cpu addr 0xffff8801584dcc04
[  860.037849] radeon 0000:0a:00.0: fence driver on ring 2 use gpu addr
0x0000000040000c08 and cpu addr 0xffff8801584dcc08
[  860.037853] radeon 0000:0a:00.0: fence driver on ring 3 use gpu addr
0x0000000040000c0c and cpu addr 0xffff8801584dcc0c
[  860.037856] radeon 0000:0a:00.0: fence driver on ring 4 use gpu addr
0x0000000040000c10 and cpu addr 0xffff8801584dcc10
[  860.233816] [drm] ring test on 0 succeeded in 1 usecs
[  860.233822] [drm] ring test on 1 succeeded in 1 usecs
[  860.233827] [drm] ring test on 2 succeeded in 1 usecs
[  860.233836] [drm] ring test on 3 succeeded in 4 usecs
[  860.233844] [drm] ring test on 4 succeeded in 4 usecs
[  860.233876] [drm] ib test on ring 0 succeeded in 0 usecs
[  860.233901] [drm] ib test on ring 1 succeeded in 0 usecs
[  860.233924] [drm] ib test on ring 2 succeeded in 0 usecs
[  860.233937] [drm] ib test on ring 3 succeeded in 0 usecs
[  860.233949] [drm] ib test on ring 4 succeeded in 0 usecs
[  870.734094] radeon 0000:0a:00.0: ring 0 stalled for more than 10276msec
[  870.734101] radeon 0000:0a:00.0: GPU lockup (current fence id
0x00000000000000b0 last fence id 0x00000000000000b2 on ring 0)
[  871.234271] radeon 0000:0a:00.0: ring 0 stalled for more than 10776msec
[  871.234277] radeon 0000:0a:00.0: GPU lockup (current fence id
0x00000000000000b0 last fence id 0x00000000000000b2 on ring 0)

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[Bug 88364] Xorg hangs after videocard switching

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https://bugs.freedesktop.org/show_bug.cgi?id=88364

--- Comment #3 from Michel Dänzer <michel@daenzer.net> ---
(In reply to Liss from comment #2)
> If I restart notebook and try to run something again I'll get black window
> (Xorg will continue to work)

Note that DRI_PRIME currently requires a compositing manager for the contents
to be visible.


> and next dmesg log:

Looks like the normal messages from powering up and initializing the Radeon
GPU.

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[Bug 88364] Xorg hangs after videocard switching

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https://bugs.freedesktop.org/show_bug.cgi?id=88364

--- Comment #4 from Liss <lissamour@gmail.com> ---
(In reply to Michel Dänzer from comment #3)
> (In reply to Liss from comment #2)
> > If I restart notebook and try to run something again I'll get black window
> > (Xorg will continue to work)
> 
> Note that DRI_PRIME currently requires a compositing manager for the
> contents to be visible.

I'm using Mutter as WM, so there shouldn't be any problems with compositing.

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[Bug 88364] Xorg hangs after videocard switching

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https://bugs.freedesktop.org/show_bug.cgi?id=88364

--- Comment #5 from Liss <lissamour@gmail.com> ---
I found that last working version for me is 3.16.7. Bug occurs starting from
3.17-rc1

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[Bug 88364] Xorg hangs after videocard switching

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https://bugs.freedesktop.org/show_bug.cgi?id=88364

--- Comment #6 from Alex Deucher <alexdeucher@gmail.com> ---
(In reply to Liss from comment #5)
> I found that last working version for me is 3.16.7. Bug occurs starting from
> 3.17-rc1

Can you use git to bisect and figure out which commit caused the problem?

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[Bug 88364] Xorg hangs after videocard switching

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https://bugs.freedesktop.org/show_bug.cgi?id=88364

--- Comment #7 from Liss <lissamour@gmail.com> ---
Here is bisect output:
636e2582658742b94e7620becce58f939996c961 is the first bad commit
commit 636e2582658742b94e7620becce58f939996c961
Author: Alex Deucher <alexander.deucher@amd.com>
Date:   Fri Jun 6 18:43:45 2014 -0400

    drm/radeon/dpm: add support for SVI2 voltage for SI

    Some newer boards use SVI2 for voltage control rather
    than GPIO.

    Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

:040000 040000 53449e086e151c24e90607b713c9bd416c658b55
72d3d0491cabfd6921a038565d8eeaca34726d5f M    drivers

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[Bug 88364] Xorg hangs after videocard switching

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https://bugs.freedesktop.org/show_bug.cgi?id=88364

--- Comment #8 from Liss <lissamour@gmail.com> ---
Error still reproducible on kernel 4.0-rc7.

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[Bug 88364] Xorg hangs after videocard switching

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https://bugs.freedesktop.org/show_bug.cgi?id=88364

--- Comment #9 from Alex Deucher <alexdeucher@gmail.com> ---
Can you attach a full dmesg output (i.e., I want to see the bootup output, not
the hang stuff)?  Also does booting with either radeon.runpm=0 or radoen.dpm=0
on the kernel command line in grub help?

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[Bug 88364] Xorg hangs after videocard switching

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https://bugs.freedesktop.org/show_bug.cgi?id=88364

--- Comment #10 from Liss <lissamour@gmail.com> ---
Created attachment 115011
  --> https://bugs.freedesktop.org/attachment.cgi?id=115011&action=edit
full dmesg output

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[Bug 88364] Xorg hangs after videocard switching

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https://bugs.freedesktop.org/show_bug.cgi?id=88364

--- Comment #11 from Liss <lissamour@gmail.com> ---
If I try to boot system with radeon.runpm=0 option I'll get behavior described
in comment #1, and if I'll try to boot with radeon.dpm=0 I can run glxgears on
radeon card, but system hangs after some time with no response even on SysRq
keys.

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--- Comment #12 from Liss <lissamour@gmail.com> ---
Bug still exists in 4.1-rc8.

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--- Comment #13 from Liss <lissamour@gmail.com> ---
kernel 4.2-rc6, no changes

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Martin Peres <martin.peres@free.fr> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |MOVED

--- Comment #14 from Martin Peres <martin.peres@free.fr> ---
-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been
closed from further activity.

You can subscribe and participate further through the new bug through this link
to our GitLab instance: https://gitlab.freedesktop.org/drm/amd/issues/572.

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