Ubuntu
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  1. Bug #1788387
  2. Comment #29

Comment 29 for bug 1788387

Revision history for this message
zunda (zundan+launchpad) wrote :

I have seemingly similar problem on Intel NUC DE3815TYKHE (ntel Atom CPU E3815). On 4.15.*, it takes more than 5 minutes to unpack the initramfs (below is an example on 4.15.0-36). With the acpi=noirq, the kernel boots as usual.

$ dmesg | head -2; dmesg | grep -A1 initramfs
[ 0.000000] Linux version 4.15.0-36-generic (buildd@lgw01-amd64-031) (gcc version 7.3.0 (Ubuntu 7.3.0-16ubuntu3)) #39-Ubuntu SMP Mon Sep 24 16:19:09 UTC 2018 (Ubuntu 4.15.0-36.39-generic 4.15.18)
[ 0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-4.15.0-36-generic root=UUID=a6268849-42cb-4d0e-80f3-eb2704407c01 ro vga=normal
[ 1.613146] Unpacking initramfs...
[ 350.054603] perf: interrupt took too long (2503 > 2500), lowering kernel.perf_event_max_sample_rate to 79750