[Bug 88981] [BSW]igt/gem_exec_lut_handle causes *ERROR* Hangcheck timer elapsed... render ring idle

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=88981

--- Comment #1 from lu hua <huax.lu at intel.com> ---
Created attachment 114896
  --> https://bugs.freedesktop.org/attachment.cgi?id=114896&action=edit
dmesg

Test on the latest -nightly kernel, I reproduce this error.
IGT-Version: 1.10-g43a1f64 (x86_64) (Linux:
4.0.0-rc6_drm-intel-nightly_333cf6_20150403+ x86_64)
relocation: buffers=   1: old=   9883 + 70.7*reloc, lut=  10415 + 61.6*reloc
(ns)
relocation: buffers=   2: old=  43176 + 487.3*reloc, lut=  43624 + 481.3*reloc
(ns)
relocation: buffers=   4: old= 421216 + 566.6*reloc, lut=  42036 + 704.6*reloc
(ns)
relocation: buffers=   8: old=  46960 + 786.2*reloc, lut=  45953 + 778.8*reloc
(ns)
relocation: buffers=  16: old=  42697 + 845.8*reloc, lut=  42976 + 840.9*reloc
(ns)
relocation: buffers=  32: old=  51074 + 868.5*reloc, lut=  50122 + 863.6*reloc
(ns)
relocation: buffers=  64: old=  74159 + 883.3*reloc, lut=  75096 + 875.2*reloc
(ns)
relocation: buffers= 128: old= 112083 + 902.7*reloc, lut= 110199 + 886.1*reloc
(ns)
relocation: buffers= 256: old= 203096 + 909.1*reloc, lut= 197321 + 889.1*reloc
(ns)
relocation: buffers= 512: old= 371372 + 951.3*reloc, lut= 363720 + 912.0*reloc
(ns)
relocation: buffers=1024: old= 986476 + 1015.9*reloc, lut= 979852 + 967.3*reloc
(ns)
relocation: buffers=2048: old=3289816 + 1272.0*reloc, lut=3250566 +
1141.5*reloc (ns)
skip-relocs: buffers=   1: old=   9734 + 82.5*reloc, lut=   8585 + 75.3*reloc
(ns)
skip-relocs: buffers=   2: old=  11425 + 82.1*reloc, lut=  10737 + 75.1*reloc
(ns)
skip-relocs: buffers=   4: old=  12983 + 81.9*reloc, lut=  12029 + 74.9*reloc
(ns)
skip-relocs: buffers=   8: old=  11609 + 83.4*reloc, lut=  10706 + 76.2*reloc
(ns)
skip-relocs: buffers=  16: old=  14929 + 83.2*reloc, lut=  14512 + 76.2*reloc
(ns)
skip-relocs: buffers=  32: old=  29272 + 87.0*reloc, lut=  32612 + 73.2*reloc
(ns)
skip-relocs: buffers=  64: old=  60615 + 80.9*reloc, lut=  59457 + 72.5*reloc
(ns)
skip-relocs: buffers= 128: old= 105637 + 86.5*reloc, lut= 104245 + 75.9*reloc
(ns)
skip-relocs: buffers= 256: old= 194529 + 92.1*reloc, lut= 191189 + 79.4*reloc
(ns)
skip-relocs: buffers= 512: old= 363259 + 122.9*reloc, lut= 357833 + 93.6*reloc
(ns)
skip-relocs: buffers=1024: old= 984330 + 191.6*reloc, lut= 958018 + 136.1*reloc
(ns)
skip-relocs: buffers=2048: old=3273974 + 288.3*reloc, lut=3236932 + 176.8*reloc
(ns)
no-relocs: buffers=   1: old=   8085 + 31.5*reloc, lut=   6420 + 25.2*reloc
(ns)
no-relocs: buffers=   2: old=   9206 + 31.2*reloc, lut=   8036 + 25.4*reloc
(ns)
no-relocs: buffers=   4: old=   7564 + 31.5*reloc, lut=   6405 + 24.6*reloc
(ns)
no-relocs: buffers=   8: old=   8911 + 33.8*reloc, lut=   7710 + 25.5*reloc
(ns)
no-relocs: buffers=  16: old=  11290 + 31.4*reloc, lut=  11413 + 25.7*reloc
(ns)
no-relocs: buffers=  32: old=  31092 + 31.2*reloc, lut=  31972 + 23.1*reloc
(ns)
no-relocs: buffers=  64: old=  59256 + 27.6*reloc, lut=  57818 + 22.5*reloc
(ns)
no-relocs: buffers= 128: old= 101909 + 27.3*reloc, lut= 100185 + 20.9*reloc
(ns)
no-relocs: buffers= 256: old= 186526 + 27.2*reloc, lut= 183392 + 20.6*reloc
(ns)
no-relocs: buffers= 512: old= 349405 + 31.3*reloc, lut= 343982 + 23.8*reloc
(ns)
no-relocs: buffers=1024: old= 934785 + 49.2*reloc, lut= 917700 + 40.6*reloc
(ns)
no-relocs: buffers=2048: old=3183432 + 34.0*reloc, lut=3135389 + 23.5*reloc
(ns)
SUCCESS (588.883s)

real    9m49.119s
user    0m18.216s
sys     9m17.545s

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