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[JVD <1409393@xxxxxxxxxxxxxxxxxx>]

It just happened again , with 3.13.0-46-lowlatency #79 &
1:7.7+1ubuntu8.1 :

Radeon CP lockup stall dmesg :

[393791.346730] radeon 0000:01:00.0: GPU lockup CP stall for more than 10000msec
[393791.346741] radeon 0000:01:00.0: GPU lockup (waiting for 0x0000000000000004 last fence id 0x0000000000000002 on ring 5)
[393791.346748] [drm:uvd_v1_0_ib_test] *ERROR* radeon: fence wait failed (-35).
[393791.346755] [drm:radeon_ib_ring_tests] *ERROR* radeon: failed testing IB on ring 5 (-35).
[393791.908949] radeon 0000:01:00.0: GPU lockup CP stall for more than 10562msec
[393791.908961] radeon 0000:01:00.0: GPU lockup (waiting for 0x0000000000000003 last fence id 0x0000000000000002 on ring 5)


Xorg server frozen:

(gdb) where
#0  0x00007fb3b8e5a337 in ioctl () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fb3ba1413a4 in drmIoctl () from /usr/lib/x86_64-linux-gnu/libdrm.so.2
#2  0x00007fb3ba1436bf in drmCommandWriteRead () from /usr/lib/x86_64-linux-gnu/libdrm.so.2
#3  0x00007fb3b4ca6357 in ?? () from /usr/lib/x86_64-linux-gnu/libdrm_radeon.so.1
#4  0x00007fb3b4ef5738 in ?? () from /usr/lib/xorg/modules/drivers/radeon_drv.so
#5  0x00007fb3b4ef5ba8 in ?? () from /usr/lib/xorg/modules/drivers/radeon_drv.so
#6  0x00007fb3bb2a8054 in _CallCallbacks ()
#7  0x00007fb3bb3f9dd6 in WriteToClient ()
#8  0x00007fb3bb2addf2 in WriteEventsToClient ()
#9  0x00007fb3bb37a66a in ?? ()
#10 0x00007fb3bb38013d in DamageReportDamage ()
#11 0x00007fb3bb38082a in ?? ()
#12 0x00007fb3bb383b43 in ?? ()
#13 0x00007fb3bb29f3d1 in ?? ()
#14 0x00007fb3bb2a2f0e in ?? ()
#15 0x00007fb3bb2a6d9a in ?? ()
#16 0x00007fb3b8d8aec5 in __libc_start_main () from /lib/x86_64-linux-gnu/libc.so.6
#17 0x00007fb3bb2921ee in _start ()
(gdb) info regs
Undefined info command: "regs".  Try "help info".
(gdb) info reg
rax            0xfffffffffffffe00       -512
rbx            0xffffffff       4294967295
rcx            0xffffffffffffffff       -1
rdx            0x7fb3bb8135c8   140409921680840
rsi            0xc0206466       3223348326
rdi            0xc      12
rbp            0x7fb3bb8135c8   0x7fb3bb8135c8
rsp            0x7fff7cb6a060   0x7fff7cb6a060
r8             0x4030de 4206814
r9             0x5b     91
r10            0xc16    3094
r11            0x246    582
r12            0xc0206466       3223348326
r13            0xc      12
r14            0x7fb3be74ac20   140409971190816
r15            0x7fff7cb6a250   140735285731920
rip            0x7fb3ba1413a4   0x7fb3ba1413a4 <drmIoctl+52>
eflags         0x246    [ PF ZF IF ]
cs             0x33     51
ss             0x2b     43
ds             0x0      0
es             0x0      0
fs             0x0      0
gs             0x0      0

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https://bugs.launchpad.net/bugs/1409393

Title:
  radeon GPU lockup CP stall

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  Ubuntu 14.04.1 LTS

  I was working on a project and had the following applications open

  MySQL Workbench
  Google Chrome
  gnome-screenshot

  All of a sudden everything freezes, the indicator-multiload stopped moving.
  I was able to switch to tty1 using CTRL+ALT+F1 (see foto of the screen in the attachments)

  The error reads:
  radeon 0000:01:00.0: GPU lockup CP stall for more than 84744msec
  drm:radeon_cs_ib_fill *ERROR* Failed to get ip !
  drm:r600_dma_ring_test *ERROR* radeon: ring 3 test failed (0xCAFEDEAD)
  drm:r600_resume *ERROR* r600 startup failed on resume

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-43-generic 3.13.0-43.72
  ProcVersionSignature: Ubuntu 3.13.0-43.72-generic 3.13.11.11
  Uname: Linux 3.13.0-43-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.6
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  kat        3551 F.... pulseaudio
   /dev/snd/controlC0:  kat        3551 F.... pulseaudio
  Date: Sun Jan 11 05:33:50 2015
  InstallationDate: Installed on 2014-03-28 (288 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20140322)
  MachineType: Sony Corporation VGN-FW31ZJ
  ProcEnviron:
   TERM=linux
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=nl_NL.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 radeondrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-3.13.0-43-generic root=UUID=6bc3bac2-11d6-4d1a-8d93-7c9b6894ea5e ro rootflags=subvol=@ quiet splash radeon.dpm=1 vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-43-generic N/A
   linux-backports-modules-3.13.0-43-generic  N/A
   linux-firmware                             1.127.11
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 08/27/2009
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: R2060Y0
  dmi.board.asset.tag: N/A
  dmi.board.name: VAIO
  dmi.board.vendor: Sony Corporation
  dmi.board.version: N/A
  dmi.chassis.asset.tag: N/A
  dmi.chassis.type: 10
  dmi.chassis.vendor: Sony Corporation
  dmi.chassis.version: N/A
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrR2060Y0:bd08/27/2009:svnSonyCorporation:pnVGN-FW31ZJ:pvrC6015XL3:rvnSonyCorporation:rnVAIO:rvrN/A:cvnSonyCorporation:ct10:cvrN/A:
  dmi.product.name: VGN-FW31ZJ
  dmi.product.version: C6015XL3
  dmi.sys.vendor: Sony Corporation

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