On Fri, Aug 24, 2018 at 04:09:47PM +0200, Matthias B. wrote: > The following is the dmesg output from my working 4.4.147 around the > time when the newer kernel panics. > > > 0.425380] Bluetooth: HIDP (Human Interface Emulation) ver 1.2 > [ 0.425932] Bluetooth: HIDP socket layer initialized > [ 0.426617] microcode: CPU0 sig=0x306c3, pf=0x2, revision=0x19 > [ 0.427203] microcode: CPU1 sig=0x306c3, pf=0x2, revision=0x19 > [ 0.427772] microcode: CPU2 sig=0x306c3, pf=0x2, revision=0x19 > [ 0.428688] microcode: CPU3 sig=0x306c3, pf=0x2, revision=0x19 > [ 0.429221] microcode: CPU4 sig=0x306c3, pf=0x2, revision=0x19 > [ 0.429744] microcode: CPU5 sig=0x306c3, pf=0x2, revision=0x19 > [ 0.430255] microcode: CPU6 sig=0x306c3, pf=0x2, revision=0x19 > [ 0.430761] microcode: CPU7 sig=0x306c3, pf=0x2, revision=0x19 > [ 0.431271] microcode: Microcode Update Driver: v2.01 > <tigran@xxxxxxxxxxxxxxxxxxxx>, Peter Oruba [ 0.431815] AVX2 > version of gcm_enc/dec engaged. [ 0.432347] AES CTR mode by8 > optimization enabled [ 0.433358] registered taskstats version 1 > [ 0.434086] Btrfs loaded > [ 0.434991] rtc_cmos 00:02: setting system clock to 2018-08-24 > 13:35:45 UTC (1535117745) [ 0.435586] ALSA device list: > [ 0.436074] No soundcards found. > > > > All of the times visible on screen for the panicking kernel are in this > gap. > > > > [ 0.595677] snd_hda_intel 0000:01:00.1: Too many HDMI devices > [ 0.596251] snd_hda_intel 0000:01:00.1: Consider building the kernel > with CONFIG_SND_DYNAMIC_MINORS=y [ 0.596839] snd_hda_intel > 0000:01:00.1: Too many HDMI devices [ 0.597412] snd_hda_intel > 0000:01:00.1: Consider building the kernel with > CONFIG_SND_DYNAMIC_MINORS=y [ 0.612466] snd_hda_intel > 0000:01:00.1: control 3:0:0:ELD:0 is already present [ 0.613100] > snd_hda_codec_hdmi: probe of hdaudioC0D0 failed with error -16 Have you tried enabling CONFIG_SND_DYNAMIC_MINORS like the kernel is asking you to here? Does that help? thanks, greg k-h