Re: latest current fails to boot.

From: Johan Hendriks <joh.hendriks_at_gmail.com>
Date: Sat, 25 Sep 2021 16:10:24 UTC 
On 25/09/2021 06:45, Jan Beich wrote:
> Tomoaki AOKI <junchoon@dec.sakura.ne.jp> writes:
>
>> On Wed, 22 Sep 2021 05:47:46 -0700
>> David Wolfskill <david@catwhisker.org> wrote:
>>
>>> On Wed, Sep 22, 2021 at 02:39:37PM +0200, Johan Hendriks wrote:
>>>> I did a git pull this morning and it fails to boot.
>>>> I hangs at Setting hostid : 0x917bf354
>>>>
>>>> This is a vm running on vmware.
>>>> If i boot the old kernel from yesterday it boots normally.
>>>>
>>>> uname -a
>>>> FreeBSD varnish-cdn-node03 14.0-CURRENT FreeBSD 14.0-CURRENT #0
>>>> main-n249518-5572fda3a2f: Tue Sep 21 14:40:22 CEST 2021
>>>> root@varnish-cdn-node03:/usr/obj/usr/src/amd64.amd64/sys/KRNL amd64
>>>> ....
>>> I had no issues with my build machine or either of two laptops, either
>>> from yesterday:
>>>
>>> FreeBSD g1-55.catwhisker.org 14.0-CURRENT FreeBSD 14.0-CURRENT #358
>>> main-n249518-5572fda3a2f3: Tue Sep 21 05:15:22 PDT 2021
>>> root@g1-55.catwhisker.org:/common/S4/obj/usr/src/amd64.amd64/sys/CANARY
>>> amd64 1400033 1400033
>>>
>>> or today:
>>>
>>> FreeBSD g1-55.catwhisker.org 14.0-CURRENT FreeBSD 14.0-CURRENT #359
>>> main-n249556-c96da1994587: Wed Sep 22 04:24:17 PDT 2021
>>> root@g1-55.catwhisker.org:/common/S4/obj/usr/src/amd64.amd64/sys/CANARY
>>> amd64 1400033 1400033
>>>
>>> [uname strings from my main laptop shown, but I keep the machines
>>> in sync rather aggressively.]
>>>
>>> Perhaps the issue you are encountering involves things not in my
>>> environment (such as VMs or ZFS)?
>>>
>>> Peace,
>>> david
>>> -- 
>>> David H. Wolfskill                              david@catwhisker.org
>>> Life is not intended to be a zero-sum game.
>>>
>>> See https://www.catwhisker.org/~david/publickey.gpg for my public key.
>> For me, on bare metal (non-vm) amd64 with root-on-ZFS,
>>
>>    Fails to boot to multiuser at git: 8db1669959ce
>>    Boot fine at git: 0b79a76f8487
>>
>> Boot to singleuser is fine even with failed revision.
>>
>> Failure mode:
>>   Hard hangup or spinning and non-operable. Hard power-off needed.
>>   Seems to happen after starting rc.conf processing and before setting
>>   hostid.
> Does "git revert --no-edit -2 8db1669959ce" help? Do you modify
> kern.sched.* via /etc/sysctl.conf?
>
For me i had kern.sched.steal_thresh=1 in my sysctl as i use this 
machine mainly for tests and so on.
By removing this sysctl the system boots again. I already used the 
latest snapshot and that booted fine.

regards
Johan