Bug 112150

Summary: [CI][DRMTIP]igt@gem_ctx_switch@legacy-bsd1-heavy|igt@gem_ctx_switch@vcs0-heavy - fail - Failed assertion: !"GPU hung"
Product: DRI Reporter: Lakshmi <lakshminarayana.vudum>
Component: DRM/IntelAssignee: Intel GFX Bugs mailing list <intel-gfx-bugs>
Status: RESOLVED WONTFIX QA Contact: Intel GFX Bugs mailing list <intel-gfx-bugs>
Severity: normal    
Priority: medium CC: intel-gfx-bugs
Version: DRI git   
Hardware: Other   
OS: All   
Whiteboard:
i915 platform: G45 i915 features: GPU hang

Description Lakshmi 2019-10-28 12:09:59 UTC 
https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_393/fi-elk-e7500/igt@gem_ctx_switch@vcs0-heavy.html
Starting subtest: vcs0-heavy
(gem_ctx_switch:1014) igt_aux-CRITICAL: Test assertion failure function sig_abort, file ../lib/igt_aux.c:502:
(gem_ctx_switch:1014) igt_aux-CRITICAL: Failed assertion: !"GPU hung"
Subtest vcs0-heavy failed.
**** DEBUG ****
(gem_ctx_switch:1014) DEBUG: Test requirement passed: __gem_execbuf(fd, &execbuf) == 0
(gem_ctx_switch:1014) igt_aux-CRITICAL: Test assertion failure function sig_abort, file ../lib/igt_aux.c:502:
(gem_ctx_switch:1014) igt_aux-CRITICAL: Failed assertion: !"GPU hung"
(gem_ctx_switch:1014) igt_core-INFO: Stack trace:
(gem_ctx_switch:1014) igt_core-INFO:   #0 ../lib/igt_core.c:1716 __igt_fail_assert()
(gem_ctx_switch:1014) igt_core-INFO:   #1 [sig_abort+0x3a]
(gem_ctx_switch:1014) igt_core-INFO:   #2 [killpg+0x40]
(gem_ctx_switch:1014) igt_core-INFO:   #3 ../sysdeps/unix/sysv/linux/wait.c:29 wait()
(gem_ctx_switch:1014) igt_core-INFO:   #4 ../lib/igt_core.c:1999 __igt_waitchildren()
(gem_ctx_switch:1014) igt_core-INFO:   #5 ../lib/igt_core.c:2050 igt_waitchildren()
(gem_ctx_switch:1014) igt_core-INFO:   #6 ../tests/i915/gem_ctx_switch.c:206 single.isra.0()
(gem_ctx_switch:1014) igt_core-INFO:   #7 ../tests/i915/gem_ctx_switch.c:401 __real_main312()
(gem_ctx_switch:1014) igt_core-INFO:   #8 ../tests/i915/gem_ctx_switch.c:312 main()
(gem_ctx_switch:1014) igt_core-INFO:   #9 ../csu/libc-start.c:344 __libc_start_main()
(gem_ctx_switch:1014) igt_core-INFO:   #10 [_start+0x2a]
****  END  ****
Subtest vcs0-heavy: FAIL (7.950s)
gem_ctx_switch: ../lib/igt_core.c:1772: igt_exit: Assertion `!num_test_children' failed.
Received signal SIGABRT.
Stack trace: 
 #0 [fatal_sig_handler+0xd6]
 #1 [killpg+0x40]
 #2 [gsignal+0xc7]
 #3 [abort+0x141]
 #4 [uselocale+0x33a]
 #5 [__assert_fail+0x42]
 #6 [igt_exit+0x133]
 #7 [main+0x2c]
 #8 [__libc_start_main+0xe7]
 #9 [_start+0x2a]
Comment 2 Chris Wilson 2019-10-28 12:13:05 UTC 
Ok, that's just more work than the GPU could process in a heartbeat.

Bring on the ring scheduler!
Comment 3 Richard Rogers 2019-11-04 16:20:48 UTC 
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Comment 4 Chris Wilson 2019-11-29 15:23:50 UTC 
Pushed aside and hidden from CI.

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