Bug 84529

Summary:	[IVB bisected] glean fragProg1 CMP test failed
Product:	Mesa	Reporter:	Ian Romanick <idr>
Component:	Drivers/DRI/i965	Assignee:	Jason Ekstrand <jason>
Status:	RESOLVED FIXED	QA Contact:	Intel 3D Bugs Mailing List <intel-3d-bugs>
Severity:	normal
Priority:	medium	CC:	huax.lu
Version:	git
Hardware:	Other
OS:	All
Whiteboard:
i915 platform:		i915 features:

Description Ian Romanick 2014-09-30 20:32:57 UTC

On my IVB system,

$ bin/glean -o -v -v -v -t +fragProg1 --quick 
----------------------------------------------------------------------
Fragment Program test 1: test a specific set of fragment programs.

FAILURE:
  Program: CMP test
  Expected color: 0, 0.25, 1, 0
  Observed color: 0.501961, 0.25098, 1, 0.501961
fragProg1:  FAIL rgba8, db, z24, s8, win+pmap, id 33
	52 tests passed, 1 tests failed.


git-bisect says:

2999f83bd987fd53e2348ceb887dc2d40096c813 is the first bad commit
commit 2999f83bd987fd53e2348ceb887dc2d40096c813
Author: Jason Ekstrand <jason.ekstrand@intel.com>
Date:   Sat Aug 16 11:38:07 2014 -0700

    i965/fs: Derive force_uncompressed from instruction exec_size
    
    Signed-off-by: Jason Ekstrand <jason.ekstrand@intel.com>
    Reviewed-by: Matt Turner <mattst88@gmail.com>

:040000 040000 9c30b7bc6ea456e2943cf98e823f77675b0d0585 d1bd4f70e1fc027455e0ef8ee2317786206c5ee9 M	src

Comment 1 Jason Ekstrand 2014-09-30 21:41:59 UTC

How about latest master?  There were some bugs in the first push that I fixed a couple hours later.

Comment 2 Ian Romanick 2014-09-30 22:19:49 UTC

I was testing on 408aa46c.  There are a couple commits since then on master, but both are in the freedreno driver.  Re-testing at cc355f1c had no change.

Comment 3 Jason Ekstrand 2014-10-01 00:50:37 UTC

I think I found the bug and sent a patch to the list that should fix it.  Let me know if it does.

Comment 4 lu hua 2014-10-08 03:03:32 UTC

I can reproduce it on (master)16b53005a7df4249fecb6641af0934c32181fdea
FAILURE:
  Program: CMP test
  Expected color: 0, 0.25, 1, 0
  Observed color: 0, 0, 0, 0
fragProg1:  FAIL rgba8, db, z24, s8, win+pmap, id 32
        0 tests passed, 1 tests failed.

Comment 5 Matt Turner 2014-10-26 04:57:08 UTC

Perhaps fixed now?

Comment 6 Ian Romanick 2014-10-27 17:25:31 UTC

Works here.

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