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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - Xorg take 100% CPU when using multiple independent screen configuration"
href="https://bugs.freedesktop.org/show_bug.cgi?id=90482#c3">Comment # 3</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - Xorg take 100% CPU when using multiple independent screen configuration"
href="https://bugs.freedesktop.org/show_bug.cgi?id=90482">bug 90482</a>
from <span class="vcard"><a class="email" href="mailto:matti.nykyri@iki.fi" title="Matti Nykyri <matti.nykyri@iki.fi>"> <span class="fn">Matti Nykyri</span></a>
</span></b>
<pre>and strace Xorg(PID 2954):
2954 select(256, [1 3 5 10 11 12 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58
59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81], NULL,
NULL, {264, 56000}) = 1 (in [12], left {264, 55981})
2954 select(256, [1 3 5 10 11 12 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58
59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81], NULL,
NULL, {264, 56000}) = 1 (in [12], left {264, 55981})
2954 select(256, [1 3 5 10 11 12 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58
59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81], NULL,
NULL, {264, 55000}) = 1 (in [12], left {264, 54982})
2954 select(256, [1 3 5 10 11 12 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58
59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81], NULL,
NULL, {264, 55000}) = 1 (in [12], left {264, 54981})
2954 select(256, [1 3 5 10 11 12 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58
59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81], NULL,
NULL, {264, 55000}) = 1 (in [12], left {264, 54981})
2954 select(256, [1 3 5 10 11 12 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58
59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81], NULL,
NULL, {264, 54000}) = 1 (in [12], left {264, 53982})
2954 select(256, [1 3 5 10 11 12 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58
59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81], NULL,
NULL, {264, 54000}) = 1 (in [12], left {264, 53982})
2954 select(256, [1 3 5 10 11 12 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58
59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81], NULL,
NULL, {264, 54000}) = 1 (in [12], left {264, 53981})
2954 select(256, [1 3 5 10 11 12 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58
59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81], NULL,
NULL, {264, 53000}) = 1 (in [12], left {264, 52981})
2954 select(256, [1 3 5 10 11 12 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58
59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81], NULL,
NULL, {264, 53000}) = 1 (in [12], left {264, 52981})
2954 select(256, [1 3 5 10 11 12 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58
59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81], NULL,
NULL, {264, 53000}) = 1 (in [12], left {264, 52981})
2954 select(256, [1 3 5 10 11 12 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58
59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81], NULL,
NULL, {264, 52000}) = 1 (in [12], left {264, 51981})
2954 select(256, [1 3 5 10 11 12 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58
59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81], NULL,
NULL, {264, 52000}) = 1 (in [12], left {264, 51981})
2954 select(256, [1 3 5 10 11 12 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58
59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81], NULL,
NULL, {264, 51000}) = 1 (in [12], left {264, 50982})
2954 select(256, [1 3 5 10 11 12 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58
59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81], NULL,
NULL, {264, 51000}) = 1 (in [12], left {264, 50983})
2954 select(256, [1 3 5 10 11 12 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58
59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81], NULL,
NULL, {264, 51000}) = 1 (in [12], left {264, 50983})
2954 select(256, [1 3 5 10 11 12 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58
59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81], NULL,
NULL, {264, 51000}) = 1 (in [12], left {264, 50983})
cat /proc/2954/fd:
0 l-wx------ 1 root root 64 May 16 23:47 0 -> /var/log/Xorg.0.log
0 lrwx------ 1 root root 64 May 16 23:47 1 -> socket:[12196]
0 lrwx------ 1 root root 64 May 16 23:47 10 -> /dev/dri/card0
0 lrwx------ 1 root root 64 May 16 23:47 11 -> socket:[1845]
0 lrwx------ 1 root root 64 May 16 23:47 12 -> socket:[1858]
0 lrwx------ 1 root root 64 May 16 23:47 13 -> /dev/dri/card0
0 lrwx------ 1 root root 64 May 16 23:47 14 -> /dev/input/event1
0 lrwx------ 1 root root 64 May 16 23:47 15 -> /dev/input/event0
0 lrwx------ 1 root root 64 May 16 23:47 16 -> /dev/input/event2
0 lrwx------ 1 root root 64 May 16 23:47 17 -> /dev/input/event3
0 lrwx------ 1 root root 64 May 16 23:47 18 -> socket:[2848]
....etc
lsof -p 2954:
X 2954 root 0w REG 8,2 164675 262153
/var/log/Xorg.0.log
X 2954 root 1u unix 0xffff880214864840 0t0 12196
@/tmp/.X11-unix/X0
X 2954 root 2w REG 8,2 56795 262596
/var/log/kdm.log
X 2954 root 3u unix 0xffff880214864c80 0t0 12197
/tmp/.X11-unix/X0
X 2954 root 4r REG 8,2 31614 524293
/usr/lib64/xorg/protocol.txt
X 2954 root 5u netlink 0t0 2823
KOBJECT_UEVENT
X 2954 root 6w REG 0,3 0 4026531961
/proc/mtrr
X 2954 root 7w REG 0,3 0 4026531961
/proc/mtrr
X 2954 root 8u CHR 4,7 0t0 2080
/dev/tty7
X 2954 root 9u CHR 10,63 0t0 1026
/dev/vga_arbiter
X 2954 root 10u CHR 226,0 0t0 1044
/dev/dri/card0
X 2954 root 11u sock 0,6 0t0 1845
protocol: NETLINK
X 2954 root 12u netlink 0t0 1858
KOBJECT_UEVENT
X 2954 root 13u CHR 226,0 0t0 1044
/dev/dri/card0
X 2954 root 14u CHR 13,65 0t0 1082
/dev/input/event1
X 2954 root 15u CHR 13,64 0t0 10912
/dev/input/event0
X 2954 root 16u CHR 13,66 0t0 2447
/dev/input/event2
X 2954 root 17u CHR 13,67 0t0 1323
/dev/input/event3
X 2954 root 18u unix 0xffff8800d9839100 0t0 2848
@/tmp/.X11-unix/X0</pre>
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