[Bug 235017] 12.0-RELEASE hangs at boot from official iso

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=235017

roel at qsp.nl changed:

           What    |Removed                     |Added
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                 CC|                            |roel at qsp.nl

--- Comment #4 from roel at qsp.nl ---
Same issue here on a Dell SC1425:

CPU: Intel(R) Xeon(TM) CPU 3.20GHz (3200.17-MHz K8-class CPU)
Origin="GenuineIntel"  Id=0xf4a  Family=0xf  Model=0x4  Stepping=10

12.0-RELEASE i386 will boot, amd64 will not. PXE or local harddisk makes no
difference. Booting on serial console. I am using the release bootonly images
from ftp.freebsd.org.

This seems to be the same issue as is being reported here:
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=234676 and on the forum at
https://forums.freebsd.org/threads/freebsd-12-cant-find-boot-entropy.68265/

Tried both efi.rt.disabled=1 and hint.apic.0.disabled="1" as these were
mentioned, but no difference.

BTW: 11.2 panics on boot with hint.apic.0.disabled="1":

panic: No usable event timer found!
cpuid = 0
KDB: stack backtrace:
#0 0xffffffff80b3d567 at kdb_backtrace+0x67
#1 0xffffffff80af6b07 at vpanic+0x177
#2 0xffffffff80af6983 at panic+0x43
#3 0xffffffff810af4bd at cpu_initclocks_bsp+0x3dd
#4 0xffffffff810ddf65 at cpu_initclocks+0x15
#5 0xffffffff80a96130 at initclocks+0x20
#6 0xffffffff80a92898 at mi_startup+0x118
#7 0xffffffff8031002c at btext+0x2c

But anyway, that is not related to this bug. Verbose boot shows nothing more
than the "entropy not found" error, after which console stays empty.

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