When running IGT (4258cc8 igt/kms: Do not wait for fence completion during commit) on CI_DRM_2813 on fi-ilk-650, the test igt@gem_exec_parallel@basic failed the following assertion: (gem_exec_parallel:1762) CRITICAL: Test assertion failure function check_bo, file gem_exec_parallel.c:54: (gem_exec_parallel:1762) CRITICAL: Failed assertion: map[i] == i (gem_exec_parallel:1762) CRITICAL: error: 0 != 918 Subtest basic failed. **** DEBUG **** (gem_exec_parallel:1762) DEBUG: Test requirement passed: nengine (gem_exec_parallel:1762) igt-debugfs-DEBUG: Opening debugfs directory '/sys/kernel/debug/dri/0' (gem_exec_parallel:1762) igt-debugfs-DEBUG: Opening debugfs directory '/sys/kernel/debug/dri/0' (gem_exec_parallel:1762) DEBUG: Verifying result (pass=0, handle=1) (gem_exec_parallel:1762) DEBUG: Verifying result (pass=1, handle=2) (gem_exec_parallel:1762) CRITICAL: Test assertion failure function check_bo, file gem_exec_parallel.c:54: (gem_exec_parallel:1762) CRITICAL: Failed assertion: map[i] == i (gem_exec_parallel:1762) CRITICAL: error: 0 != 918 **** END **** Full logs: http://benchsrv.fi.intel.com/archive/results/CI_IGT_test/IGT_1310/fi-ilk-650/igt@gem_exec_parallel@basic.html
One off? We have a race somewhere, my money is on the gpu relocations.
(In reply to Chris Wilson from comment #1) > One off? We have a race somewhere, my money is on the gpu relocations. So far, it is. We have had this machine in CI for a couple of months already. Maybe we can catch this more easily with extended.
A missing reloc (cache flush) is still my best guess. gem_exec_whisper would be the other candidate for stressing this, but would need a forced reloc path. Hmm.
(In reply to Martin Peres from comment #2) > (In reply to Chris Wilson from comment #1) > > One off? We have a race somewhere, my money is on the gpu relocations. > > So far, it is. We have had this machine in CI for a couple of months > already. Maybe we can catch this more easily with extended. It actually happened a second time. Here is the full history: http://benchsrv.fi.intel.com/cibuglog/?action_failures_history=-1&failures_test=igt@gem_exec_parallel@basic&failures_machine=fi-ilk-650
Never seen again. Closing
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