Bug 87265

Summary: display turned off during normal work, radeon GPU lockup
Product: DRI Reporter: Kamil Páral <kamil.paral>
Component: DRM/RadeonAssignee: Default DRI bug account <dri-devel>
Status: RESOLVED FIXED QA Contact:
Severity: normal    
Priority: medium    
Version: unspecified   
Hardware: Other   
OS: All   
Whiteboard:
i915 platform: i915 features:

Description Kamil Páral 2014-12-12 14:14:18 UTC 
I was working in Firefox and a notification popped up in my GNOME, when the display froze and the monitor turned off after a few seconds with "no signal" message. I waited about i minute, the screen did not come up again. Trying to switch to VT2 did not help. I had to use sysrq to do an emergency sync and reboot (that worked, kernel was not locked up completely). I don't know how to reproduce this, happened randomly.

Radeon R9 270
01:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. [AMD/ATI] Curacao PRO [Radeon R9 270] [1002:6811] (prog-if 00 [VGA controller])
	Subsystem: Micro-Star International Co., Ltd. [MSI] Device [1462:3050]
	Flags: bus master, fast devsel, latency 0, IRQ 29
	Memory at e0000000 (64-bit, prefetchable) [size=256M]
	Memory at f0000000 (64-bit, non-prefetchable) [size=256K]
	I/O ports at e000 [size=256]
	Expansion ROM at f0040000 [disabled] [size=128K]
	Capabilities: [48] Vendor Specific Information: Len=08 <?>
	Capabilities: [50] Power Management version 3
	Capabilities: [58] Express Legacy Endpoint, MSI 00
	Capabilities: [a0] MSI: Enable+ Count=1/1 Maskable- 64bit+
	Capabilities: [100] Vendor Specific Information: ID=0001 Rev=1 Len=010 <?>
	Capabilities: [150] Advanced Error Reporting
	Capabilities: [270] #19
	Capabilities: [2b0] Address Translation Service (ATS)
	Capabilities: [2c0] #13
	Capabilities: [2d0] #1b
	Kernel driver in use: radeon
	Kernel modules: radeon

Fedora 21, packages:
kernel-3.17.4-302.fc21.x86_64
xorg-x11-drv-ati-7.5.0-1.fc21.x86_64
xorg-x11-drv-evdev-2.9.0-3.fc21.x86_64
xorg-x11-drv-fbdev-0.4.3-19.fc21.x86_64
xorg-x11-drv-intel-2.99.916-3.20141117.fc21.x86_64
xorg-x11-drv-modesetting-0.9.0-2.fc21.x86_64
xorg-x11-drv-nouveau-1.0.11-1.fc21.x86_64
xorg-x11-drv-openchrome-0.3.3-12.fc21.x86_64
xorg-x11-drv-qxl-0.1.2-1.fc21.x86_64
xorg-x11-drv-synaptics-1.8.0-9.fc21.x86_64
xorg-x11-drv-vesa-2.3.2-19.fc21.x86_64
xorg-x11-drv-vmmouse-13.0.0-13.fc21.x86_64
xorg-x11-drv-wacom-0.25.0-2.fc21.x86_64
xorg-x11-fonts-Type1-7.5-14.fc21.noarch
xorg-x11-font-utils-7.5-25.fc21.x86_64
xorg-x11-proto-devel-7.7-12.fc21.noarch
xorg-x11-server-common-1.16.2-1.fc21.x86_64
xorg-x11-server-devel-1.16.2-1.fc21.x86_64
xorg-x11-server-utils-7.7-10.fc21.x86_64
xorg-x11-server-Xorg-1.16.2-1.fc21.x86_64
xorg-x11-server-Xwayland-1.16.2-1.fc21.x86_64
xorg-x11-util-macros-1.19.0-3.fc21.noarch
xorg-x11-utils-7.5-16.fc21.x86_64
xorg-x11-xauth-1.0.9-2.fc21.x86_64
xorg-x11-xinit-1.3.4-2.fc21.x86_64
xorg-x11-xkb-utils-7.7-11.fc21.x86_64
mesa-dri-drivers-10.3.3-1.20141110.fc21.i686
mesa-dri-drivers-10.3.3-1.20141110.fc21.x86_64
mesa-filesystem-10.3.3-1.20141110.fc21.i686
mesa-filesystem-10.3.3-1.20141110.fc21.x86_64
mesa-libEGL-10.3.3-1.20141110.fc21.i686
mesa-libEGL-10.3.3-1.20141110.fc21.x86_64
mesa-libEGL-devel-10.3.3-1.20141110.fc21.i686
mesa-libEGL-devel-10.3.3-1.20141110.fc21.x86_64
mesa-libgbm-10.3.3-1.20141110.fc21.i686
mesa-libgbm-10.3.3-1.20141110.fc21.x86_64
mesa-libGL-10.3.3-1.20141110.fc21.i686
mesa-libGL-10.3.3-1.20141110.fc21.x86_64
mesa-libglapi-10.3.3-1.20141110.fc21.i686
mesa-libglapi-10.3.3-1.20141110.fc21.x86_64
mesa-libGL-devel-10.3.3-1.20141110.fc21.i686
mesa-libGL-devel-10.3.3-1.20141110.fc21.x86_64
mesa-libGLES-10.3.3-1.20141110.fc21.x86_64
mesa-libGLU-9.0.0-7.fc21.i686
mesa-libGLU-9.0.0-7.fc21.x86_64
mesa-libGLU-devel-9.0.0-7.fc21.x86_64
mesa-libwayland-egl-10.3.3-1.20141110.fc21.i686
mesa-libwayland-egl-10.3.3-1.20141110.fc21.x86_64
mesa-libxatracker-10.3.3-1.20141110.fc21.i686
mesa-libxatracker-10.3.3-1.20141110.fc21.x86_64
mesa-vdpau-drivers-10.3.3-1.20141110.fc21.i686
mesa-vdpau-drivers-10.3.3-1.20141110.fc21.x86_64

The system journal says:
Dec 12 13:15:26 titan gdm-Xorg-:0[741]: (EE) [mi] EQ overflowing.  Additional events will be discarded until existing events are processed.
Dec 12 13:15:26 titan gdm-Xorg-:0[741]: (EE)
Dec 12 13:15:26 titan gdm-Xorg-:0[741]: (EE) Backtrace:
Dec 12 13:15:26 titan gdm-Xorg-:0[741]: (EE) 0: /usr/libexec/Xorg.bin (mieqEnqueue+0x24b) [0x578ffb]
Dec 12 13:15:26 titan gdm-Xorg-:0[741]: (EE) 1: /usr/libexec/Xorg.bin (QueuePointerEvents+0x52) [0x450962]
Dec 12 13:15:26 titan gdm-Xorg-:0[741]: (EE) 2: /usr/lib64/xorg/modules/input/evdev_drv.so (_init+0x3042) [0x7f16eebd1852]
Dec 12 13:15:26 titan gdm-Xorg-:0[741]: (EE) 3: /usr/lib64/xorg/modules/input/evdev_drv.so (_init+0x3505) [0x7f16eebd29a5]
Dec 12 13:15:26 titan gdm-Xorg-:0[741]: (EE) 4: /usr/libexec/Xorg.bin (DPMSSupported+0xe8) [0x4772d8]
Dec 12 13:15:26 titan gdm-Xorg-:0[741]: (EE) 5: /usr/libexec/Xorg.bin (xf86SerialModemClearBits+0x277) [0x4a1cd7]
Dec 12 13:15:26 titan gdm-Xorg-:0[741]: (EE) 6: /lib64/libc.so.6 (__restore_rt+0x0) [0x7f16f437494f]
Dec 12 13:15:26 titan gdm-Xorg-:0[741]: (EE) 7: /lib64/libpthread.so.0 (pthread_cond_wait+0xc0) [0x7f16f4130590]
Dec 12 13:15:26 titan gdm-Xorg-:0[741]: (EE) 8: /usr/lib64/dri/radeonsi_dri.so (nouveau_drm_screen_create+0x10aad3) [0x7f16ed512f03]
Dec 12 13:15:26 titan gdm-Xorg-:0[741]: (EE) 9: /usr/lib64/dri/radeonsi_dri.so (nouveau_drm_screen_create+0x10b840) [0x7f16ed514730]
Dec 12 13:15:26 titan gdm-Xorg-:0[741]: (EE) 10: /usr/lib64/dri/radeonsi_dri.so (radeon_drm_winsys_create+0xbe524) [0x7f16ed587084]
Dec 12 13:15:26 titan gdm-Xorg-:0[741]: (EE) 11: /usr/lib64/dri/radeonsi_dri.so (__driDriverGetExtensions_vmwgfx+0x150294) [0x7f16ed279134]
Dec 12 13:15:26 titan gdm-Xorg-:0[741]: (EE) 12: /usr/lib64/xorg/modules/libglamoregl.so (glamor_block_handler+0x51) [0x7f16ee62ace1]
Dec 12 13:15:26 titan gdm-Xorg-:0[741]: (EE) 13: /usr/libexec/Xorg.bin (_CallCallbacks+0x34) [0x43e454]
Dec 12 13:15:26 titan gdm-Xorg-:0[741]: (EE) 14: /usr/libexec/Xorg.bin (FlushAllOutput+0x2b) [0x59b4fb]
Dec 12 13:15:26 titan gdm-Xorg-:0[741]: (EE) 15: /usr/libexec/Xorg.bin (SendErrorToClient+0x16f) [0x438eaf]
Dec 12 13:15:26 titan gdm-Xorg-:0[741]: (EE) 16: /usr/libexec/Xorg.bin (remove_fs_handlers+0x416) [0x43d196]
Dec 12 13:15:26 titan gdm-Xorg-:0[741]: (EE) 17: /lib64/libc.so.6 (__libc_start_main+0xf0) [0x7f16f435ffe0]
Dec 12 13:15:26 titan gdm-Xorg-:0[741]: (EE) 18: /usr/libexec/Xorg.bin (_start+0x29) [0x42761e]
Dec 12 13:15:26 titan gdm-Xorg-:0[741]: (EE) 19: ? (?+0x29) [0x29]
Dec 12 13:15:26 titan gdm-Xorg-:0[741]: (EE)
Dec 12 13:15:26 titan gdm-Xorg-:0[741]: (EE) [mi] These backtraces from mieqEnqueue may point to a culprit higher up the stack.
Dec 12 13:15:26 titan gdm-Xorg-:0[741]: (EE) [mi] mieq is *NOT* the cause.  It is a victim.
Dec 12 13:15:28 titan gdm-Xorg-:0[741]: (EE) [mi] EQ overflow continuing.  100 events have been dropped.
Dec 12 13:15:28 titan gdm-Xorg-:0[741]: (EE)
Dec 12 13:15:28 titan gdm-Xorg-:0[741]: (EE) Backtrace:
Dec 12 13:15:28 titan gdm-Xorg-:0[741]: (EE) 0: /usr/libexec/Xorg.bin (QueuePointerEvents+0x52) [0x450962]
Dec 12 13:15:28 titan gdm-Xorg-:0[741]: (EE) 1: /usr/lib64/xorg/modules/input/evdev_drv.so (_init+0x3042) [0x7f16eebd1852]
Dec 12 13:15:28 titan gdm-Xorg-:0[741]: (EE) 2: /usr/lib64/xorg/modules/input/evdev_drv.so (_init+0x3505) [0x7f16eebd29a5]
Dec 12 13:15:28 titan gdm-Xorg-:0[741]: (EE) 3: /usr/libexec/Xorg.bin (DPMSSupported+0xe8) [0x4772d8]
Dec 12 13:15:28 titan gdm-Xorg-:0[741]: (EE) 4: /usr/libexec/Xorg.bin (xf86SerialModemClearBits+0x277) [0x4a1cd7]
Dec 12 13:15:28 titan gdm-Xorg-:0[741]: (EE) 5: /lib64/libc.so.6 (__restore_rt+0x0) [0x7f16f437494f]
Dec 12 13:15:28 titan gdm-Xorg-:0[741]: (EE) 6: /lib64/libpthread.so.0 (pthread_cond_wait+0xc0) [0x7f16f4130590]
Dec 12 13:15:28 titan gdm-Xorg-:0[741]: (EE) 7: /usr/lib64/dri/radeonsi_dri.so (nouveau_drm_screen_create+0x10aad3) [0x7f16ed512f03]
Dec 12 13:15:28 titan gdm-Xorg-:0[741]: (EE) 8: /usr/lib64/dri/radeonsi_dri.so (nouveau_drm_screen_create+0x10b840) [0x7f16ed514730]
Dec 12 13:15:28 titan gdm-Xorg-:0[741]: (EE) 9: /usr/lib64/dri/radeonsi_dri.so (radeon_drm_winsys_create+0xbe524) [0x7f16ed587084]
Dec 12 13:15:28 titan gdm-Xorg-:0[741]: (EE) 10: /usr/lib64/dri/radeonsi_dri.so (__driDriverGetExtensions_vmwgfx+0x150294) [0x7f16ed279134]
Dec 12 13:15:28 titan gdm-Xorg-:0[741]: (EE) 11: /usr/lib64/xorg/modules/libglamoregl.so (glamor_block_handler+0x51) [0x7f16ee62ace1]
Dec 12 13:15:28 titan gdm-Xorg-:0[741]: (EE) 12: /usr/libexec/Xorg.bin (_CallCallbacks+0x34) [0x43e454]
Dec 12 13:15:28 titan gdm-Xorg-:0[741]: (EE) 13: /usr/libexec/Xorg.bin (FlushAllOutput+0x2b) [0x59b4fb]
Dec 12 13:15:28 titan gdm-Xorg-:0[741]: (EE) 14: /usr/libexec/Xorg.bin (SendErrorToClient+0x16f) [0x438eaf]
Dec 12 13:15:28 titan gdm-Xorg-:0[741]: (EE) 15: /usr/libexec/Xorg.bin (remove_fs_handlers+0x416) [0x43d196]
Dec 12 13:15:28 titan gdm-Xorg-:0[741]: (EE) 16: /lib64/libc.so.6 (__libc_start_main+0xf0) [0x7f16f435ffe0]
Dec 12 13:15:28 titan gdm-Xorg-:0[741]: (EE) 17: /usr/libexec/Xorg.bin (_start+0x29) [0x42761e]
Dec 12 13:15:28 titan gdm-Xorg-:0[741]: (EE) 18: ? (?+0x29) [0x29]
Dec 12 13:15:28 titan gdm-Xorg-:0[741]: (EE)
Dec 12 13:15:31 titan kernel: radeon 0000:01:00.0: ring 0 stalled for more than 10014msec
Dec 12 13:15:31 titan kernel: radeon 0000:01:00.0: GPU lockup (waiting for 0x00000000000e952c last fence id 0x00000000000e951c on ring 0)
Dec 12 13:15:31 titan kernel: radeon 0000:01:00.0: failed to get a new IB (-35)
Dec 12 13:15:31 titan kernel: [drm:radeon_cs_ib_fill] *ERROR* Failed to get ib !
Dec 12 13:15:31 titan gdm-Xorg-:0[741]: (EE) [mi] EQ overflow continuing.  200 events have been dropped.
Dec 12 13:15:31 titan gdm-Xorg-:0[741]: (EE)
Dec 12 13:15:31 titan gdm-Xorg-:0[741]: (EE) Backtrace:
Dec 12 13:15:31 titan gdm-Xorg-:0[741]: (EE) 0: /usr/libexec/Xorg.bin (QueuePointerEvents+0x52) [0x450962]
Dec 12 13:15:31 titan gdm-Xorg-:0[741]: (EE) 1: /usr/lib64/xorg/modules/input/evdev_drv.so (_init+0x3042) [0x7f16eebd1852]
Dec 12 13:15:31 titan gdm-Xorg-:0[741]: (EE) 2: /usr/lib64/xorg/modules/input/evdev_drv.so (_init+0x3505) [0x7f16eebd29a5]
Dec 12 13:15:31 titan gdm-Xorg-:0[741]: (EE) 3: /usr/libexec/Xorg.bin (DPMSSupported+0xe8) [0x4772d8]
Dec 12 13:15:31 titan gdm-Xorg-:0[741]: (EE) 4: /usr/libexec/Xorg.bin (xf86SerialModemClearBits+0x277) [0x4a1cd7]
Dec 12 13:15:31 titan gdm-Xorg-:0[741]: (EE) 5: /lib64/libc.so.6 (__restore_rt+0x0) [0x7f16f437494f]
Dec 12 13:15:31 titan gdm-Xorg-:0[741]: (EE) 6: /lib64/libpthread.so.0 (pthread_cond_wait+0xc0) [0x7f16f4130590]
Dec 12 13:15:31 titan gdm-Xorg-:0[741]: (EE) 7: /usr/lib64/dri/radeonsi_dri.so (nouveau_drm_screen_create+0x10aad3) [0x7f16ed512f03]
Dec 12 13:15:31 titan gdm-Xorg-:0[741]: (EE) 8: /usr/lib64/dri/radeonsi_dri.so (nouveau_drm_screen_create+0x10b840) [0x7f16ed514730]
Dec 12 13:15:31 titan gdm-Xorg-:0[741]: (EE) 9: /usr/lib64/dri/radeonsi_dri.so (radeon_drm_winsys_create+0xbe524) [0x7f16ed587084]
Dec 12 13:15:31 titan gdm-Xorg-:0[741]: (EE) 10: /usr/lib64/dri/radeonsi_dri.so (__driDriverGetExtensions_vmwgfx+0x150294) [0x7f16ed279134]
Dec 12 13:15:31 titan gdm-Xorg-:0[741]: (EE) 11: /usr/lib64/xorg/modules/libglamoregl.so (glamor_block_handler+0x51) [0x7f16ee62ace1]
Dec 12 13:15:31 titan gdm-Xorg-:0[741]: (EE) 12: /usr/libexec/Xorg.bin (_CallCallbacks+0x34) [0x43e454]
Dec 12 13:15:31 titan gdm-Xorg-:0[741]: (EE) 13: /usr/libexec/Xorg.bin (FlushAllOutput+0x2b) [0x59b4fb]
Dec 12 13:15:31 titan gdm-Xorg-:0[741]: (EE) 14: /usr/libexec/Xorg.bin (SendErrorToClient+0x16f) [0x438eaf]
Dec 12 13:15:31 titan gdm-Xorg-:0[741]: (EE) 15: /usr/libexec/Xorg.bin (remove_fs_handlers+0x416) [0x43d196]
Dec 12 13:15:31 titan gdm-Xorg-:0[741]: (EE) 16: /lib64/libc.so.6 (__libc_start_main+0xf0) [0x7f16f435ffe0]
Dec 12 13:15:31 titan gdm-Xorg-:0[741]: (EE) 17: /usr/libexec/Xorg.bin (_start+0x29) [0x42761e]
Dec 12 13:15:31 titan gdm-Xorg-:0[741]: (EE) 18: ? (?+0x29) [0x29]
Dec 12 13:15:31 titan gdm-Xorg-:0[741]: (EE)
Dec 12 13:15:31 titan kernel: radeon 0000:01:00.0: Saved 5084 dwords of commands on ring 0.
Dec 12 13:15:31 titan kernel: radeon 0000:01:00.0: GPU softreset: 0x0000006C
Dec 12 13:15:31 titan kernel: radeon 0000:01:00.0:   GRBM_STATUS               = 0xA0003028
Dec 12 13:15:31 titan kernel: radeon 0000:01:00.0:   GRBM_STATUS_SE0           = 0x00000006
Dec 12 13:15:31 titan kernel: radeon 0000:01:00.0:   GRBM_STATUS_SE1           = 0x00000006
Dec 12 13:15:31 titan kernel: radeon 0000:01:00.0:   SRBM_STATUS               = 0x200000C0
Dec 12 13:15:31 titan kernel: radeon 0000:01:00.0:   SRBM_STATUS2              = 0x00000000
Dec 12 13:15:31 titan kernel: radeon 0000:01:00.0:   R_008674_CP_STALLED_STAT1 = 0x00000000
Dec 12 13:15:31 titan kernel: radeon 0000:01:00.0:   R_008678_CP_STALLED_STAT2 = 0x00010000
Dec 12 13:15:31 titan kernel: radeon 0000:01:00.0:   R_00867C_CP_BUSY_STAT     = 0x00000002
Dec 12 13:15:31 titan kernel: radeon 0000:01:00.0:   R_008680_CP_STAT          = 0x80010243
Dec 12 13:15:31 titan kernel: radeon 0000:01:00.0:   R_00D034_DMA_STATUS_REG   = 0x44C83146
Dec 12 13:15:31 titan kernel: radeon 0000:01:00.0:   R_00D834_DMA_STATUS_REG   = 0x44C84046
Dec 12 13:15:31 titan kernel: radeon 0000:01:00.0:   VM_CONTEXT1_PROTECTION_FAULT_ADDR   0x00000000
Dec 12 13:15:31 titan kernel: radeon 0000:01:00.0:   VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x00000000
Dec 12 13:15:31 titan kernel: radeon 0000:01:00.0: GRBM_SOFT_RESET=0x0000DDFF
Dec 12 13:15:31 titan kernel: radeon 0000:01:00.0: SRBM_SOFT_RESET=0x00100140
Dec 12 13:15:31 titan kernel: radeon 0000:01:00.0:   GRBM_STATUS               = 0x00003028
Dec 12 13:15:31 titan kernel: radeon 0000:01:00.0:   GRBM_STATUS_SE0           = 0x00000006
Dec 12 13:15:31 titan kernel: radeon 0000:01:00.0:   GRBM_STATUS_SE1           = 0x00000006
Dec 12 13:15:31 titan kernel: radeon 0000:01:00.0:   SRBM_STATUS               = 0x20000AC0
Dec 12 13:15:31 titan kernel: radeon 0000:01:00.0:   SRBM_STATUS2              = 0x00000000
Dec 12 13:15:31 titan kernel: radeon 0000:01:00.0:   R_008674_CP_STALLED_STAT1 = 0x00000000
Dec 12 13:15:31 titan kernel: radeon 0000:01:00.0:   R_008678_CP_STALLED_STAT2 = 0x00000000
Dec 12 13:15:31 titan kernel: radeon 0000:01:00.0:   R_00867C_CP_BUSY_STAT     = 0x00000000
Dec 12 13:15:31 titan kernel: radeon 0000:01:00.0:   R_008680_CP_STAT          = 0x00000000
Dec 12 13:15:31 titan kernel: radeon 0000:01:00.0:   R_00D034_DMA_STATUS_REG   = 0x44C83D57
Dec 12 13:15:31 titan kernel: radeon 0000:01:00.0:   R_00D834_DMA_STATUS_REG   = 0x44C83D57
Dec 12 13:15:31 titan kernel: radeon 0000:01:00.0: GPU reset succeeded, trying to resume
Dec 12 13:15:32 titan kernel: [drm] probing gen 2 caps for device 8086:c01 = 261ad03/e
Dec 12 13:15:32 titan kernel: [drm] PCIE gen 3 link speeds already enabled
Dec 12 13:15:32 titan kernel: [drm] PCIE GART of 1024M enabled (table at 0x0000000000276000).
Dec 12 13:15:32 titan kernel: radeon 0000:01:00.0: WB enabled
Dec 12 13:15:32 titan kernel: radeon 0000:01:00.0: fence driver on ring 0 use gpu addr 0x0000000080000c00 and cpu addr 0xffff88022f587c00
Dec 12 13:15:32 titan kernel: radeon 0000:01:00.0: fence driver on ring 1 use gpu addr 0x0000000080000c04 and cpu addr 0xffff88022f587c04
Dec 12 13:15:32 titan kernel: radeon 0000:01:00.0: fence driver on ring 2 use gpu addr 0x0000000080000c08 and cpu addr 0xffff88022f587c08
Dec 12 13:15:32 titan kernel: radeon 0000:01:00.0: fence driver on ring 3 use gpu addr 0x0000000080000c0c and cpu addr 0xffff88022f587c0c
Dec 12 13:15:32 titan kernel: radeon 0000:01:00.0: fence driver on ring 4 use gpu addr 0x0000000080000c10 and cpu addr 0xffff88022f587c10
Dec 12 13:15:32 titan kernel: radeon 0000:01:00.0: fence driver on ring 5 use gpu addr 0x0000000000075a18 and cpu addr 0xffffc90005635a18
Dec 12 13:15:32 titan kernel: [drm] ring test on 0 succeeded in 4 usecs
Dec 12 13:15:32 titan kernel: [drm] ring test on 1 succeeded in 1 usecs
Dec 12 13:15:32 titan kernel: [drm] ring test on 2 succeeded in 1 usecs
Dec 12 13:15:32 titan kernel: [drm] ring test on 3 succeeded in 5 usecs
Dec 12 13:15:32 titan kernel: [drm] ring test on 4 succeeded in 5 usecs
Dec 12 13:15:32 titan kernel: [drm] ring test on 5 succeeded in 2 usecs
Dec 12 13:15:32 titan kernel: [drm] UVD initialized successfully.
Dec 12 13:15:42 titan kernel: radeon 0000:01:00.0: ring 0 stalled for more than 10000msec
Dec 12 13:15:42 titan kernel: radeon 0000:01:00.0: GPU lockup (waiting for 0x00000000000e956f last fence id 0x00000000000e951c on ring 0)
Dec 12 13:15:42 titan kernel: [drm:r600_ib_test] *ERROR* radeon: fence wait failed (-35).
Dec 12 13:15:42 titan kernel: [drm:radeon_ib_ring_tests] *ERROR* radeon: failed testing IB on GFX ring (-35).
Dec 12 13:15:42 titan kernel: radeon 0000:01:00.0: ib ring test failed (-35).
Dec 12 13:15:42 titan kernel: radeon 0000:01:00.0: GPU softreset: 0x00000048
Dec 12 13:15:42 titan kernel: radeon 0000:01:00.0:   GRBM_STATUS               = 0xA0003028
Dec 12 13:15:42 titan kernel: radeon 0000:01:00.0:   GRBM_STATUS_SE0           = 0x00000006
Dec 12 13:15:42 titan kernel: radeon 0000:01:00.0:   GRBM_STATUS_SE1           = 0x00000006
Dec 12 13:15:42 titan kernel: radeon 0000:01:00.0:   SRBM_STATUS               = 0x200000C0
Dec 12 13:15:42 titan kernel: radeon 0000:01:00.0:   SRBM_STATUS2              = 0x00000000
Dec 12 13:15:42 titan kernel: radeon 0000:01:00.0:   R_008674_CP_STALLED_STAT1 = 0x00000000
Dec 12 13:15:42 titan kernel: radeon 0000:01:00.0:   R_008678_CP_STALLED_STAT2 = 0x00010000
Dec 12 13:15:42 titan kernel: radeon 0000:01:00.0:   R_00867C_CP_BUSY_STAT     = 0x00400002
Dec 12 13:15:42 titan kernel: radeon 0000:01:00.0:   R_008680_CP_STAT          = 0x84010243
Dec 12 13:15:42 titan kernel: radeon 0000:01:00.0:   R_00D034_DMA_STATUS_REG   = 0x44C83D57
Dec 12 13:15:42 titan kernel: radeon 0000:01:00.0:   R_00D834_DMA_STATUS_REG   = 0x44C83D57
Dec 12 13:15:42 titan kernel: radeon 0000:01:00.0:   VM_CONTEXT1_PROTECTION_FAULT_ADDR   0x00000000
Dec 12 13:15:42 titan kernel: radeon 0000:01:00.0:   VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x00000000
Dec 12 13:15:43 titan kernel: radeon 0000:01:00.0: GRBM_SOFT_RESET=0x0000DDFF
Dec 12 13:15:43 titan kernel: radeon 0000:01:00.0: SRBM_SOFT_RESET=0x00000100
Dec 12 13:15:43 titan kernel: radeon 0000:01:00.0:   GRBM_STATUS               = 0x00003028
Dec 12 13:15:43 titan kernel: radeon 0000:01:00.0:   GRBM_STATUS_SE0           = 0x00000006
Dec 12 13:15:43 titan kernel: radeon 0000:01:00.0:   GRBM_STATUS_SE1           = 0x00000006
Dec 12 13:15:43 titan kernel: radeon 0000:01:00.0:   SRBM_STATUS               = 0x200000C0
Dec 12 13:15:43 titan kernel: radeon 0000:01:00.0:   SRBM_STATUS2              = 0x00000000
Dec 12 13:15:43 titan kernel: radeon 0000:01:00.0:   R_008674_CP_STALLED_STAT1 = 0x00000000
Dec 12 13:15:43 titan kernel: radeon 0000:01:00.0:   R_008678_CP_STALLED_STAT2 = 0x00000000
Dec 12 13:15:43 titan kernel: radeon 0000:01:00.0:   R_00867C_CP_BUSY_STAT     = 0x00000000
Dec 12 13:15:43 titan kernel: radeon 0000:01:00.0:   R_008680_CP_STAT          = 0x00000000
Dec 12 13:15:43 titan kernel: radeon 0000:01:00.0:   R_00D034_DMA_STATUS_REG   = 0x44C83D57
Dec 12 13:15:43 titan kernel: radeon 0000:01:00.0:   R_00D834_DMA_STATUS_REG   = 0x44C83D57
Dec 12 13:15:43 titan kernel: radeon 0000:01:00.0: GPU reset succeeded, trying to resume
Dec 12 13:15:43 titan kernel: [drm] probing gen 2 caps for device 8086:c01 = 261ad03/e
Dec 12 13:15:43 titan kernel: [drm] PCIE gen 3 link speeds already enabled
Dec 12 13:15:43 titan kernel: [drm] PCIE GART of 1024M enabled (table at 0x0000000000276000).
Dec 12 13:15:43 titan kernel: radeon 0000:01:00.0: WB enabled
Dec 12 13:15:43 titan kernel: radeon 0000:01:00.0: fence driver on ring 0 use gpu addr 0x0000000080000c00 and cpu addr 0xffff88022f587c00
Dec 12 13:15:43 titan kernel: radeon 0000:01:00.0: fence driver on ring 1 use gpu addr 0x0000000080000c04 and cpu addr 0xffff88022f587c04
Dec 12 13:15:43 titan kernel: radeon 0000:01:00.0: fence driver on ring 2 use gpu addr 0x0000000080000c08 and cpu addr 0xffff88022f587c08
Dec 12 13:15:43 titan kernel: radeon 0000:01:00.0: fence driver on ring 3 use gpu addr 0x0000000080000c0c and cpu addr 0xffff88022f587c0c
Dec 12 13:15:43 titan kernel: radeon 0000:01:00.0: fence driver on ring 4 use gpu addr 0x0000000080000c10 and cpu addr 0xffff88022f587c10
Dec 12 13:15:43 titan kernel: radeon 0000:01:00.0: fence driver on ring 5 use gpu addr 0x0000000000075a18 and cpu addr 0xffffc90005635a18
Dec 12 13:15:43 titan kernel: [drm] ring test on 0 succeeded in 4 usecs
Dec 12 13:15:43 titan kernel: [drm] ring test on 1 succeeded in 1 usecs
Dec 12 13:15:43 titan kernel: [drm] ring test on 2 succeeded in 1 usecs
Dec 12 13:15:43 titan kernel: [drm] ring test on 3 succeeded in 5 usecs
Dec 12 13:15:43 titan kernel: [drm] ring test on 4 succeeded in 5 usecs
Dec 12 13:15:43 titan kernel: [drm] ring test on 5 succeeded in 2 usecs
Dec 12 13:15:43 titan kernel: [drm] UVD initialized successfully.
Dec 12 13:16:21 titan gdm-Xorg-:0[741]: (EE) [mi] EQ overflow continuing.  300 events have been dropped.
Dec 12 13:16:21 titan gdm-Xorg-:0[741]: (EE)
Dec 12 13:16:21 titan gdm-Xorg-:0[741]: (EE) Backtrace:
Dec 12 13:16:21 titan gdm-Xorg-:0[741]: (EE) 0: /usr/libexec/Xorg.bin (QueueKeyboardEvents+0x52) [0x450302]
Dec 12 13:16:21 titan gdm-Xorg-:0[741]: (EE) 1: /usr/libexec/Xorg.bin (xf86PostKeyboardEvent+0x44) [0x488004]
Dec 12 13:16:21 titan gdm-Xorg-:0[741]: (EE) 2: /usr/lib64/xorg/modules/input/evdev_drv.so (_init+0x2e87) [0x7f16eebd1697]
Dec 12 13:16:21 titan gdm-Xorg-:0[741]: (EE) 3: /usr/lib64/xorg/modules/input/evdev_drv.so (_init+0x3505) [0x7f16eebd29a5]
Dec 12 13:16:21 titan gdm-Xorg-:0[741]: (EE) 4: /usr/libexec/Xorg.bin (DPMSSupported+0xe8) [0x4772d8]
Dec 12 13:16:21 titan gdm-Xorg-:0[741]: (EE) 5: /usr/libexec/Xorg.bin (xf86SerialModemClearBits+0x277) [0x4a1cd7]
Dec 12 13:16:21 titan gdm-Xorg-:0[741]: (EE) 6: /lib64/libc.so.6 (__restore_rt+0x0) [0x7f16f437494f]
Dec 12 13:16:21 titan gdm-Xorg-:0[741]: (EE) 7: /usr/libexec/Xorg.bin (OsCleanup+0x20) [0x59c360]
Dec 12 13:16:21 titan gdm-Xorg-:0[741]: (EE) 8: /lib64/libc.so.6 (__restore_rt+0x0) [0x7f16f437494f]
Dec 12 13:16:21 titan gdm-Xorg-:0[741]: (EE) 9: /lib64/libpthread.so.0 (pthread_cond_wait+0xc0) [0x7f16f4130590]
Dec 12 13:16:21 titan gdm-Xorg-:0[741]: (EE) 10: /usr/lib64/dri/radeonsi_dri.so (nouveau_drm_screen_create+0x10aad3) [0x7f16ed512f03]
Dec 12 13:16:21 titan gdm-Xorg-:0[741]: (EE) 11: /usr/lib64/dri/radeonsi_dri.so (nouveau_drm_screen_create+0x10b840) [0x7f16ed514730]
Dec 12 13:16:21 titan gdm-Xorg-:0[741]: (EE) 12: /usr/lib64/dri/radeonsi_dri.so (radeon_drm_winsys_create+0xbe524) [0x7f16ed587084]
Dec 12 13:16:21 titan gdm-Xorg-:0[741]: (EE) 13: /usr/lib64/dri/radeonsi_dri.so (__driDriverGetExtensions_vmwgfx+0x150294) [0x7f16ed279134]
Dec 12 13:16:21 titan gdm-Xorg-:0[741]: (EE) 14: /usr/lib64/xorg/modules/libglamoregl.so (glamor_block_handler+0x51) [0x7f16ee62ace1]
Dec 12 13:16:21 titan gdm-Xorg-:0[741]: (EE) 15: /usr/libexec/Xorg.bin (_CallCallbacks+0x34) [0x43e454]
Dec 12 13:16:21 titan gdm-Xorg-:0[741]: (EE) 16: /usr/libexec/Xorg.bin (FlushAllOutput+0x2b) [0x59b4fb]
Dec 12 13:16:21 titan gdm-Xorg-:0[741]: (EE) 17: /usr/libexec/Xorg.bin (SendErrorToClient+0x16f) [0x438eaf]
Dec 12 13:16:21 titan gdm-Xorg-:0[741]: (EE) 18: /usr/libexec/Xorg.bin (remove_fs_handlers+0x416) [0x43d196]
Dec 12 13:16:21 titan gdm-Xorg-:0[741]: (EE) 19: /lib64/libc.so.6 (__libc_start_main+0xf0) [0x7f16f435ffe0]
Dec 12 13:16:21 titan gdm-Xorg-:0[741]: (EE) 20: /usr/libexec/Xorg.bin (_start+0x29) [0x42761e]
Dec 12 13:16:21 titan gdm-Xorg-:0[741]: (EE) 21: ? (?+0x29) [0x29]
Dec 12 13:16:21 titan gdm-Xorg-:0[741]: (EE)
Dec 12 13:16:27 titan kernel: SysRq : Keyboard mode set to system default
... (and then nothing important, just reboot using sysrq)
Comment 1 Kamil Páral 2014-12-13 16:52:10 UTC 
This happened before I upgraded to the latest mesa-dri-drivers-10.3.5-1.20141207.fc21. It's possible it's fixed now. If you can't easily extract information about what's wrong, let's close it and I'll reopen if it happens again.
Comment 2 Michel Dänzer 2014-12-16 08:56:03 UTC 
Indeed, there was a fix in Mesa 10.3.4 which helped for issues like this for some people.

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