[Bug 72255] [GM45/ILK/BYT/BDW]igt/gem_concurrent_blit/cpu-overwrite-source causes OOM killer

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=72255

Chris Wilson <chris at chris-wilson.co.uk> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|REOPENED                    |RESOLVED
         Resolution|---                         |FIXED

--- Comment #13 from Chris Wilson <chris at chris-wilson.co.uk> ---
A little printf goes a long way...

root at baytrail-t:/usr/src/intel-gpu-tools/tests# ./gem_concurrent_blit 
IGT-Version: 1.5-gb5109e6 (i686) (Linux: 3.13.0-rc8+ i686)
using 2x512 buffers, each 1MiB
Subtest prw-overwrite-source: SUCCESS
Subtest prw-early-read: SUCCESS
Subtest prw-gpu-read-after-write: SUCCESS
Subtest prw-overwrite-source-interruptible: SUCCESS
Subtest prw-early-read-interruptible: SUCCESS
Subtest prw-gpu-read-after-write-interruptible: SUCCESS
Subtest prw-overwrite-source-forked: SUCCESS
Subtest prw-early-read-forked: SUCCESS
Subtest prw-gpu-read-after-write-forked: SUCCESS
Subtest cpu-overwrite-source: SUCCESS
Subtest cpu-early-read: SUCCESS
Subtest cpu-gpu-read-after-write: SUCCESS
Subtest cpu-overwrite-source-interruptible: SUCCESS
Subtest cpu-early-read-interruptible: SUCCESS
Subtest cpu-gpu-read-after-write-interruptible: SUCCESS
Subtest cpu-overwrite-source-forked: SUCCESS
Subtest cpu-early-read-forked: SUCCESS
Subtest cpu-gpu-read-after-write-forked: SUCCESS
Subtest gtt-overwrite-source: SUCCESS
Subtest gtt-early-read: SUCCESS
Subtest gtt-gpu-read-after-write: SUCCESS
Subtest gtt-overwrite-source-interruptible: SUCCESS
Subtest gtt-early-read-interruptible: SUCCESS
Subtest gtt-gpu-read-after-write-interruptible: SUCCESS
Subtest gtt-overwrite-source-forked: SUCCESS
Subtest gtt-early-read-forked: SUCCESS
Subtest gtt-gpu-read-after-write-forked: SUCCESS

cat /proc/meminfo 
MemTotal:        1929304 kB
MemFree:         1613484 kB
Buffers:           15236 kB
Cached:           270856 kB
SwapCached:            0 kB
Active:           118092 kB
Inactive:         175144 kB
Active(anon):       7200 kB
Inactive(anon):     8656 kB
Active(file):     110892 kB
Inactive(file):   166488 kB
Unevictable:           0 kB
Mlocked:               0 kB
HighTotal:       1022332 kB
HighFree:         891840 kB
LowTotal:         906972 kB
LowFree:          721644 kB
SwapTotal:             0 kB
SwapFree:              0 kB
Dirty:                 0 kB
Writeback:             0 kB
AnonPages:          7164 kB
Mapped:             1896 kB
Shmem:              8692 kB
Slab:              14772 kB
SReclaimable:       8096 kB
SUnreclaim:         6676 kB
KernelStack:         648 kB
PageTables:          352 kB
NFS_Unstable:          0 kB
Bounce:                0 kB
WritebackTmp:          0 kB
CommitLimit:      964652 kB
Committed_AS:      52136 kB
VmallocTotal:     122880 kB
VmallocUsed:       14076 kB
VmallocChunk:      93428 kB
AnonHugePages:         0 kB
HugePages_Total:       0
HugePages_Free:        0
HugePages_Rsvd:        0
HugePages_Surp:        0
Hugepagesize:       4096 kB
DirectMap4k:       23544 kB
DirectMap4M:      884736 kB

commit 0b4c33f62c2d4a61b0b5e9184524c8ca273400b1
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date:   Sun Jan 26 14:36:32 2014 +0000

    igt/gem_concurrent_blit: Scale resource usage to RAM correctly

    Note that we use twice the number of buffers, and so we need to restrict
    num_buffers appropriately to fit within RAM.

    Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=72255
    Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>

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