https://bugzilla.kernel.org/show_bug.cgi?id=16265
--- Comment #20 from Bc. Slavomir Danas slavomir.da...@gmail.com 2011-04-09
16:51:37 ---
Created an attachment (id=53912)
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kworker polling hogs CPU on 2.6.38
kworker polling hogs CPU
https://bugzilla.kernel.org/show_bug.cgi?id=16265
--- Comment #21 from Chris Wilson ch...@chris-wilson.co.uk 2011-04-09
17:01:53 ---
Please do a perf top to see what tasklet is actually being run by kslowd.
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--- Comment #22 from Bc. Slavomir Danas slavomir.da...@gmail.com 2011-04-09
17:45:57 ---
This is while kslowd consumed approx. 75% CPU:
PerfTop: 0 irqs/sec kernel:-nan% exact: -nan% [1000Hz cycles],
(all, 2 CPUs)
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--- Comment #17 from Bc. Slavomir Danas slavomir.da...@gmail.com 2011-01-18
18:18:36 ---
It doesn't seem to me as sane to consume this amount of CPU time to poll for
anything (see attached screenshot). I figured a way how to reproduce this,
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--- Comment #18 from Bc. Slavomir Danas slavomir.da...@gmail.com 2011-01-18
18:19:30 ---
Created an attachment (id=44072)
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kslowd in 2.6.37
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--- Comment #13 from Bc. Slavomir Danas slavomir.da...@gmail.com 2011-01-16
09:04:37 ---
I have been redirected here from
https://bugzilla.kernel.org/show_bug.cgi?id=18802 so it is probably not a
duplicate of this bug because the workaround
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--- Comment #14 from Florian Mickler flor...@mickler.org 2011-01-16 12:46:57
---
You write in comment #11 about 'disabling the boot drm_kms_helper.poll=N'...
Did you mean with that, that the problem is in 2.6.37 (final) still present and
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--- Comment #15 from Bc. Slavomir Danas slavomir.da...@gmail.com 2011-01-16
19:45:49 ---
I've had this drm_kms_helper.poll=N kernel workaround in my grub since I've
discovered it in 18802 bug (around 2.6.36-r2 i think) because I've suffered
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--- Comment #16 from Chris Wilson ch...@chris-wilson.co.uk 2011-01-16
22:46:41 ---
You need to quantify your observations here. When polling is enabled, then
every 10s the worker will be awoken and consume CPU time checking that all the
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Bc. Slavomir Danas slavomir.da...@gmail.com changed:
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--- Comment #12 from Chris Wilson ch...@chris-wilson.co.uk 2011-01-15
22:35:48 ---
(In reply to comment #11)
This issue is still present for me with Intel 4500 MHD (intel driver 2.14.0,
xorg-server 1.9.3.901, mesa 7.9.1, libdrm 2.4.23)
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Florian Mickler flor...@mickler.org changed:
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--- Comment #9 from Florian Mickler flor...@mickler.org 2011-01-12 11:19:26
---
Is this issue still visible on 2.6.37?
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--- Comment #1 from Rafael J. Wysocki r...@sisk.pl 2010-07-23 20:03:18 ---
On Friday, July 23, 2010, Nick Bowler wrote:
On 13:47 Fri 23 Jul , Rafael J. Wysocki wrote:
This message has been generated automatically as a part of a summary
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