On Saturday, 9 October 2021 21:28:19 CEST Diederik de Haas wrote: > I'll try later whether I can reliably reproduce it with hibernate mode. That appears to be the case. Hibernated my PC yesterday and started it up today. After some time, I got the msgs again, this time also in dmesg: # dmesg | tail -n15 [248910.645828] pl2303 5-4:1.0: pl2303 converter detected [248910.645936] PM: hibernation: Basic memory bitmaps freed [248910.645937] OOM killer enabled. [248910.645938] Restarting tasks ... done. [248910.647538] PM: hibernation: hibernation exit [248910.650035] snd_hda_codec_hdmi hdaudioC0D0: HDMI: ELD buf size is 0, force 128 [248910.650051] snd_hda_codec_hdmi hdaudioC0D0: HDMI: invalid ELD data byte 0 [248910.672631] usb 5-4: pl2303 converter now attached to ttyUSB0 [248910.672669] pl2303 5-3:1.0: pl2303 converter detected [248910.699625] usb 5-3: pl2303 converter now attached to ttyUSB1 [248910.699669] pl2303 5-2:1.0: pl2303 converter detected [248910.726626] usb 5-2: pl2303 converter now attached to ttyUSB2 [249275.040414] Uhhuh. NMI received for unknown reason 2c on CPU 0. [249275.040417] Do you have a strange power saving mode enabled? [249275.040417] Dazed and confused, but trying to continue HTH, Diederik
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