Bug 107720

From the logs, the driver is automatically disabling FBC when we hit a FIFO underrun, so this is actually a duplicate of 107724.

*** This bug has been marked as a duplicate of bug 107724 ***

Closed as Duplicate.

(In reply to James Ausmus from comment #1)
> From the logs, the driver is automatically disabling FBC when we hit a FIFO
> underrun, so this is actually a duplicate of 107724.
> 
> *** This bug has been marked as a duplicate of bug 107724 ***

James do you think this failure is also part of bug 107724?
https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_169/fi-icl-u3/igt@kms_frontbuffer_tracking@fbcpsr-1p-pri-indfb-multidraw.html

No, that looks like a separate issue - no FIFO underruns seen there

Jose - any thoughts from the logs in Comment 3?

To me it looks like I need to repoen this bug. If not, I need to file a new bug.

I agree https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_169/fi-icl-u3/igt@kms_frontbuffer_tracking@fbcpsr-1p-pri-indfb-multidraw.html do not looks like duplicated of https://bugs.freedesktop.org/show_bug.cgi?id=107724

https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_228/fi-icl-u2/igt@kms_frontbuffer_tracking@fbcpsr-1p-pri-indfb-multidraw.html

Starting subtest: fbcpsr-1p-pri-indfb-multidraw
(kms_frontbuffer_tracking:2241) CRITICAL: Test assertion failure function do_status_assertions, file ../tests/kms_frontbuffer_tracking.c:1619:
(kms_frontbuffer_tracking:2241) CRITICAL: Failed assertion: fbc_wait_for_compression()
Subtest fbcpsr-1p-pri-indfb-multidraw failed.
**** DEBUG ****
(kms_frontbuffer_tracking:2241) DEBUG: Used method mmap-cpu
(kms_frontbuffer_tracking:2241) igt_draw-DEBUG: Test requirement passed: gem_get_tiling(fd, buf->handle, &tiling, &swizzle)
(kms_frontbuffer_tracking:2241) igt_draw-DEBUG: Test requirement passed: intel_gen(intel_get_drm_devid(fd)) >= 5
(kms_frontbuffer_tracking:2241) igt_debugfs-DEBUG: Opening debugfs directory '/sys/kernel/debug/dri/0'
(kms_frontbuffer_tracking:2241) DEBUG: checking asserts in line 2070
(kms_frontbuffer_tracking:2241) igt_debugfs-DEBUG: Opening debugfs directory '/sys/kernel/debug/dri/0'
(kms_frontbuffer_tracking:2241) DEBUG: Calculated CRC: pipe:[0917ed60 00000000 00000000 00000000 00000000]
(kms_frontbuffer_tracking:2241) DEBUG: Test requirement passed: !fbc_not_enough_stolen()
(kms_frontbuffer_tracking:2241) DEBUG: Test requirement passed: !fbc_stride_not_supported()
(kms_frontbuffer_tracking:2241) DEBUG: Test requirement passed: !fbc_mode_too_large()
(kms_frontbuffer_tracking:2241) DEBUG: fbc_is_enabled()?
FBC enabled

A CI Bug Log filter associated to this bug has been updated:

{- ICL: igt@kms_frontbuffer_tracking@* - dmesg-fail / fail - Failed assertion: fbc_wait_for_compression() -}
{+ ICL: igt@kms_frontbuffer_tracking@* - dmesg-fail / fail - Failed assertion: fbc_wait_for_compression() +}

New failures caught by the filter:

* https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_228/fi-icl-u2/igt@kms_frontbuffer_tracking@fbcpsr-1p-pri-indfb-multidraw.html

We need to split this bug into two. This one should be marked as duplicate of https://bugs.freedesktop.org/show_bug.cgi?id=107724 as the most errors we get are dmesg-fail with FIFO underruns in the dmesg which causes FBC to be disabled.

The other failure, also caught under this bug, haven't been seen in a while (1.5 months, drmtip_228) and had rather few reproduction prior to that (about once every three months): 

https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_228/fi-icl-u2/igt@kms_frontbuffer_tracking@fbcpsr-1p-pri-indfb-multidraw.html

	
FBC last action not supported
Can't test DRRS: Not supported.
Starting subtest: fbcpsr-1p-pri-indfb-multidraw
Stack trace:
  #0 ../lib/igt_core.c:1474 __igt_fail_assert()
  #1 ../tests/kms_frontbuffer_tracking.c:1620 do_status_assertions()
  #2 ../tests/kms_frontbuffer_tracking.c:1659 __do_assertions()
  #3 ../tests/kms_frontbuffer_tracking.c:2048 multidraw_subtest()
  #4 ../tests/kms_frontbuffer_tracking.c:3397 main()
  #5 ../csu/libc-start.c:344 __libc_start_main()
  #6 [_start+0x2a]
Subtest fbcpsr-1p-pri-indfb-multidraw: FAIL (9.851s)

This one needs a separate filing.

*** This bug has been marked as a duplicate of bug 107724 ***

The CI Bug Log issue associated to this bug has been archived.

New failures matching the above filters will not be associated to this bug anymore.