Solved v12 P3 update: kernel panic on reboot

Hi all,

This morning I updated two VPSs running v12 to P3 using freebsd-update.

The first went fine, the second wouldn't reboot, generating some kind of kernel panic:

Screenshot from 2019-05-15 12-41-40.png


I have now rebooted it with the previous kernel.

I would obviously like to help the FreeBSD community by filing a bug report or something, but I have no idea how to go about this. I would also like to be able to boot the new kernel :)

Any suggestions?
 
Yes, this VPS is running i386. I've applied P5 and can confirmed the system boots fine. Many thanks!
 
We just had this happen with freebsd-update fetch on a v12.0 fresh install going to 12.0p7
Code:
# freebsd-update fetch
src component not installed, skipped
Looking up update.FreeBSD.org mirrors... 2 mirrors found.
Fetching public key from update1.freebsd.org... done.
Fetching metadata signature for 12.0-RELEASE from update1.freebsd.org... done.
Fetching metadata index... done.
Fetching 2 metadata files... done.
Inspecting system... done.
Preparing to download files... done.
Fetching 1163 patches.....10....20....30....40....50....60....70....80....90....100....110....120....130....140....150....160....170..Fssh_packet_write_wait: Connection to 192.168.209.142 port 22: Broken pipe

panic

reboot

. . .
Starting syslogd
savecore 957 - - reboot after panic: page fault
savecore 957 - - writing core to /var/crash/vmcore.0
Jul 11 09:22:53 <daemon.alert> vhost02 savecore[957]: reboot after panic: page fault
. . .
 
That looks like an entirely different issue. It's core dumping for a different reason.
 
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