[Bug 81663] [BYT Bisected]igt/kms_fbc_crc some subcases cause system hang

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=81663

--- Comment #3 from lu hua <huax.lu at intel.com> ---
Test on latest -nightly kernel, the hang goes away.
 ./kms_fbc_crc
IGT-Version: 1.7-g4d2f511 (x86_64) (Linux:
3.17.0-rc1_drm-intel-nightly_257d90_20140822+ x86_64)
Beginning page_flip on pipe A, connector eDP-1
FBC not enabled
page_flip on pipe A, connector eDP-1: SKIPPED
Beginning page_flip on pipe B, connector eDP-1
FBC not enabled
page_flip on pipe B, connector eDP-1: SKIPPED
Test requirement not met in function run_test, file kms_fbc_crc.c:487:
Test requirement: !(valid_tests)
no valid crtc/connector combinations found
Subtest page_flip: SKIP
Beginning mmap_cpu on pipe A, connector eDP-1
FBC not enabled
mmap_cpu on pipe A, connector eDP-1: SKIPPED
Beginning mmap_cpu on pipe B, connector eDP-1
FBC not enabled
mmap_cpu on pipe B, connector eDP-1: SKIPPED
Test requirement not met in function run_test, file kms_fbc_crc.c:487:
Test requirement: !(valid_tests)
no valid crtc/connector combinations found
Subtest mmap_cpu: SKIP
Beginning mmap_gtt on pipe A, connector eDP-1
FBC not enabled
mmap_gtt on pipe A, connector eDP-1: SKIPPED
Beginning mmap_gtt on pipe B, connector eDP-1
FBC not enabled
mmap_gtt on pipe B, connector eDP-1: SKIPPED
Test requirement not met in function run_test, file kms_fbc_crc.c:487:
Test requirement: !(valid_tests)
no valid crtc/connector combinations found
Subtest mmap_gtt: SKIP
Beginning blt on pipe A, connector eDP-1
FBC not enabled
blt on pipe A, connector eDP-1: SKIPPED
Beginning blt on pipe B, connector eDP-1
FBC not enabled
blt on pipe B, connector eDP-1: SKIPPED
Test requirement not met in function run_test, file kms_fbc_crc.c:487:
Test requirement: !(valid_tests)
no valid crtc/connector combinations found
Subtest blt: SKIP
Beginning render on pipe A, connector eDP-1
FBC not enabled
render on pipe A, connector eDP-1: SKIPPED
Beginning render on pipe B, connector eDP-1
FBC not enabled
render on pipe B, connector eDP-1: SKIPPED
Test requirement not met in function run_test, file kms_fbc_crc.c:487:
Test requirement: !(valid_tests)
no valid crtc/connector combinations found
Subtest render: SKIP
Beginning context on pipe A, connector eDP-1
FBC not enabled
context on pipe A, connector eDP-1: SKIPPED
Beginning context on pipe B, connector eDP-1
FBC not enabled
context on pipe B, connector eDP-1: SKIPPED
Test requirement not met in function run_test, file kms_fbc_crc.c:487:
Test requirement: !(valid_tests)
no valid crtc/connector combinations found
Subtest context: SKIP
Beginning page_flip_and_mmap_cpu on pipe A, connector eDP-1
FBC not enabled
page_flip_and_mmap_cpu on pipe A, connector eDP-1: SKIPPED
Beginning page_flip_and_mmap_cpu on pipe B, connector eDP-1
FBC not enabled
page_flip_and_mmap_cpu on pipe B, connector eDP-1: SKIPPED
Test requirement not met in function run_test, file kms_fbc_crc.c:487:
Test requirement: !(valid_tests)
no valid crtc/connector combinations found
Subtest page_flip_and_mmap_cpu: SKIP
Beginning page_flip_and_mmap_gtt on pipe A, connector eDP-1
FBC not enabled
page_flip_and_mmap_gtt on pipe A, connector eDP-1: SKIPPED
Beginning page_flip_and_mmap_gtt on pipe B, connector eDP-1
FBC not enabled
page_flip_and_mmap_gtt on pipe B, connector eDP-1: SKIPPED
Test requirement not met in function run_test, file kms_fbc_crc.c:487:
Test requirement: !(valid_tests)
no valid crtc/connector combinations found
Subtest page_flip_and_mmap_gtt: SKIP
Beginning page_flip_and_blt on pipe A, connector eDP-1
FBC not enabled
page_flip_and_blt on pipe A, connector eDP-1: SKIPPED
Beginning page_flip_and_blt on pipe B, connector eDP-1
FBC not enabled
page_flip_and_blt on pipe B, connector eDP-1: SKIPPED
Test requirement not met in function run_test, file kms_fbc_crc.c:487:
Test requirement: !(valid_tests)
no valid crtc/connector combinations found
Subtest page_flip_and_blt: SKIP
Beginning page_flip_and_render on pipe A, connector eDP-1
FBC not enabled
page_flip_and_render on pipe A, connector eDP-1: SKIPPED
Beginning page_flip_and_render on pipe B, connector eDP-1
FBC not enabled
page_flip_and_render on pipe B, connector eDP-1: SKIPPED
Test requirement not met in function run_test, file kms_fbc_crc.c:487:
Test requirement: !(valid_tests)
no valid crtc/connector combinations found
Subtest page_flip_and_render: SKIP
Beginning page_flip_and_context on pipe A, connector eDP-1
FBC not enabled
page_flip_and_context on pipe A, connector eDP-1: SKIPPED
Beginning page_flip_and_context on pipe B, connector eDP-1
FBC not enabled
page_flip_and_context on pipe B, connector eDP-1: SKIPPED
Test requirement not met in function run_test, file kms_fbc_crc.c:487:
Test requirement: !(valid_tests)
no valid crtc/connector combinations found
Subtest page_flip_and_context: SKIP

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