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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Kworker using 100% CPU"
href="https://bugs.freedesktop.org/show_bug.cgi?id=76732#c6">Comment # 6</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Kworker using 100% CPU"
href="https://bugs.freedesktop.org/show_bug.cgi?id=76732">bug 76732</a>
from <span class="vcard"><a class="email" href="mailto:patrick.clara@gmail.com" title="patrick.clara@gmail.com">patrick.clara@gmail.com</a>
</span></b>
<pre>As requested by Ilia Mirkin I tryed booting with nouveau.debug=debug and
drm.debug=0xe.
Here a chunk of the output it continuously repeats
[ 25.732112] nouveau D[ I2C][0000:01:00.0] AUXCH(1): 1: 0x00000050 16
[ 25.732399] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0x58565600
[ 25.732404] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0x30543631
[ 25.732409] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0x30443031
[ 25.732414] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0x6d000a30
[ 25.732429] nouveau D[ I2C][0000:01:00.0] AUXCH(1): 9: 0x00000000 8
[ 25.732646] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0x00040a11
[ 25.732652] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0x00000000
[ 25.732657] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0x30443031
[ 25.732662] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0x6d000a30
[ 25.732668] nouveau [ DRM] display: 4x270000 dpcd 0x11
[ 25.732669] nouveau [ DRM] encoder: 4x270000
[ 25.732670] nouveau [ DRM] maximum: 4x270000
[ 25.732672] [drm:drm_helper_hpd_irq_event], [CONNECTOR:17:eDP-1] status
updated from connected to connected
[ 25.733745] [drm:drm_helper_hpd_irq_event], [CONNECTOR:21:HDMI-A-1] status
updated from disconnected to disconnected
[ 25.733753] nouveau [ DRM] plugged eDP-1
[ 25.733765] nouveau D[ I2C][0000:01:00.0] AUXCH(1): 4: 0x00000050 1
[ 25.733786] nouveau D[ I2C][0000:01:00.0] AUXCH(1): wr 0x00000000
[ 25.733787] nouveau D[ I2C][0000:01:00.0] AUXCH(1): wr 0x00000000
[ 25.733788] nouveau D[ I2C][0000:01:00.0] AUXCH(1): wr 0x00000000
[ 25.733790] nouveau D[ I2C][0000:01:00.0] AUXCH(1): wr 0x00000000
[ 25.733942] nouveau D[ I2C][0000:01:00.0] AUXCH(1): 1: 0x00000050 1
[ 25.734113] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0x00040a00
[ 25.734118] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0x00000000
[ 25.734121] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0x30443031
[ 25.734127] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0x6d000a30
[ 25.734141] nouveau D[ I2C][0000:01:00.0] AUXCH(1): 4: 0x00000050 1
[ 25.734155] nouveau D[ I2C][0000:01:00.0] AUXCH(1): wr 0x00000000
[ 25.734156] nouveau D[ I2C][0000:01:00.0] AUXCH(1): wr 0x00000000
[ 25.734158] nouveau D[ I2C][0000:01:00.0] AUXCH(1): wr 0x00000000
[ 25.734159] nouveau D[ I2C][0000:01:00.0] AUXCH(1): wr 0x00000000
[ 25.734313] nouveau D[ I2C][0000:01:00.0] AUXCH(1): 1: 0x00000050 1
[ 25.734475] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0x00040a00
[ 25.734480] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0x00000000
[ 25.734486] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0x30443031
[ 25.734491] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0x6d000a30
[ 25.734505] nouveau D[ I2C][0000:01:00.0] AUXCH(1): 4: 0x00000050 1
[ 25.734526] nouveau D[ I2C][0000:01:00.0] AUXCH(1): wr 0x00000000
[ 25.734527] nouveau D[ I2C][0000:01:00.0] AUXCH(1): wr 0x00000000
[ 25.734528] nouveau D[ I2C][0000:01:00.0] AUXCH(1): wr 0x00000000
[ 25.734530] nouveau D[ I2C][0000:01:00.0] AUXCH(1): wr 0x00000000
[ 25.734681] nouveau D[ I2C][0000:01:00.0] AUXCH(1): 5: 0x00000050 16
[ 25.734967] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0xffffff00
[ 25.734973] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0x00ffffff
[ 25.734975] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0x96a2a934
[ 25.734981] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0x00000000
[ 25.734987] nouveau D[ I2C][0000:01:00.0] AUXCH(1): 5: 0x00000050 16
[ 25.735273] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0x040117ff
[ 25.735278] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0x781322a0
[ 25.735284] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0xa7a11202
[ 25.735289] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0x26995354
[ 25.735295] nouveau D[ I2C][0000:01:00.0] AUXCH(1): 5: 0x00000050 16
[ 25.735575] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0x0054500b
[ 25.735581] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0x01010000
[ 25.735586] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0x01010101
[ 25.735592] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0x01010101
[ 25.735607] nouveau D[ I2C][0000:01:00.0] AUXCH(1): 5: 0x00000050 16
[ 25.735895] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0x01010101
[ 25.735901] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0x762a0101
[ 25.735905] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0x54b0c440
[ 25.735911] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0x042c6014
[ 25.735916] nouveau D[ I2C][0000:01:00.0] AUXCH(1): 5: 0x00000050 16
[ 25.736203] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0xc1580091
[ 25.736209] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0x1e000010
[ 25.736214] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0xc440762a
[ 25.736220] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0x615b54b0
[ 25.736225] nouveau D[ I2C][0000:01:00.0] AUXCH(1): 5: 0x00000050 16
[ 25.736507] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0x0091042c
[ 25.736512] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0x0010c158
[ 25.736518] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0x00001e00
[ 25.736523] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0x2a00fd00
[ 25.736529] nouveau D[ I2C][0000:01:00.0] AUXCH(1): 5: 0x00000050 16
[ 25.736815] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0x1e64603d
[ 25.736821] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0x20200a01
[ 25.736825] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0x20202020
[ 25.736831] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0xfc000000
[ 25.736836] nouveau D[ I2C][0000:01:00.0] AUXCH(1): 1: 0x00000050 16
[ 25.737123] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0x58565600
[ 25.737129] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0x30543631
[ 25.737134] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0x30443031
[ 25.737140] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0x6d000a30
[ 25.737153] nouveau D[ I2C][0000:01:00.0] AUXCH(1): 9: 0x00000000 8
[ 25.737381] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0x00040a11
[ 25.737390] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0x00000000
[ 25.737398] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0x30443031
[ 25.737406] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0x6d000a30
[ 25.737410] nouveau [ DRM] display: 4x270000 dpcd 0x11
[ 25.737411] nouveau [ DRM] encoder: 4x270000
[ 25.737412] nouveau [ DRM] maximum: 4x270000
[ 25.737414] [drm:drm_helper_hpd_irq_event], [CONNECTOR:17:eDP-1] status
updated from connected to connected
[ 25.738486] [drm:drm_helper_hpd_irq_event], [CONNECTOR:21:HDMI-A-1] status
updated from disconnected to disconnected
[ 25.738492] nouveau [ DRM] plugged eDP-1
[ 25.738504] nouveau D[ I2C][0000:01:00.0] AUXCH(1): 4: 0x00000050 1
[ 25.738525] nouveau D[ I2C][0000:01:00.0] AUXCH(1): wr 0x00000000
[ 25.738526] nouveau D[ I2C][0000:01:00.0] AUXCH(1): wr 0x00000000
[ 25.738528] nouveau D[ I2C][0000:01:00.0] AUXCH(1): wr 0x00000000
[ 25.738529] nouveau D[ I2C][0000:01:00.0] AUXCH(1): wr 0x00000000
[ 25.738681] nouveau D[ I2C][0000:01:00.0] AUXCH(1): 1: 0x00000050 1
[ 25.738852] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0x00040a00
[ 25.738857] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0x00000000
[ 25.738860] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0x30443031
[ 25.738866] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0x6d000a30
[ 25.738880] nouveau D[ I2C][0000:01:00.0] AUXCH(1): 4: 0x00000050 1
[ 25.738894] nouveau D[ I2C][0000:01:00.0] AUXCH(1): wr 0x00000000
[ 25.738896] nouveau D[ I2C][0000:01:00.0] AUXCH(1): wr 0x00000000
[ 25.738897] nouveau D[ I2C][0000:01:00.0] AUXCH(1): wr 0x00000000
[ 25.738898] nouveau D[ I2C][0000:01:00.0] AUXCH(1): wr 0x00000000
[ 25.739052] nouveau D[ I2C][0000:01:00.0] AUXCH(1): 1: 0x00000050 1
[ 25.739214] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0x00040a00
[ 25.739220] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0x00000000
[ 25.739225] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0x30443031
[ 25.739231] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0x6d000a30
[ 25.739244] nouveau D[ I2C][0000:01:00.0] AUXCH(1): 4: 0x00000050 1
[ 25.739265] nouveau D[ I2C][0000:01:00.0] AUXCH(1): wr 0x00000000
[ 25.739266] nouveau D[ I2C][0000:01:00.0] AUXCH(1): wr 0x00000000
[ 25.739268] nouveau D[ I2C][0000:01:00.0] AUXCH(1): wr 0x00000000
[ 25.739269] nouveau D[ I2C][0000:01:00.0] AUXCH(1): wr 0x00000000
[ 25.739421] nouveau D[ I2C][0000:01:00.0] AUXCH(1): 5: 0x00000050 16
[ 25.739705] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0xffffff00
[ 25.739711] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0x00ffffff
[ 25.739716] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0x96a2a934
[ 25.739722] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0x00000000
[ 25.739727] nouveau D[ I2C][0000:01:00.0] AUXCH(1): 5: 0x00000050 16
[ 25.740009] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0x040117ff
[ 25.740014] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0x781322a0
[ 25.740019] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0xa7a11202
[ 25.740025] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0x26995354
[ 25.740030] nouveau D[ I2C][0000:01:00.0] AUXCH(1): 5: 0x00000050 16
[ 25.740317] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0x0054500b
[ 25.740323] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0x01010000
[ 25.740327] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0x01010101
[ 25.740333] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0x01010101
[ 25.740339] nouveau D[ I2C][0000:01:00.0] AUXCH(1): 5: 0x00000050 16
[ 25.740625] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0x01010101
[ 25.740631] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0x762a0101
[ 25.740636] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0x54b0c440
[ 25.740642] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0x042c6014
[ 25.740647] nouveau D[ I2C][0000:01:00.0] AUXCH(1): 5: 0x00000050 16
[ 25.740929] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0xc1580091
[ 25.740934] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0x1e000010
[ 25.740940] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0xc440762a
[ 25.740945] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0x615b54b0
[ 25.740951] nouveau D[ I2C][0000:01:00.0] AUXCH(1): 5: 0x00000050 16
[ 25.741237] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0x0091042c
[ 25.741243] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0x0010c158
[ 25.741247] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0x00001e00
[ 25.741253] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0x2a00fd00
[ 25.741258] nouveau D[ I2C][0000:01:00.0] AUXCH(1): 5: 0x00000050 16
[ 25.741544] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0x1e64603d
[ 25.741550] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0x20200a01
[ 25.741555] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0x20202020
[ 25.741561] nouveau D[ I2C][0000:01:00.0] AUXCH(1): rd 0xfc000000</pre>
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