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Date:      Tue, 06 Apr 2021 11:37:17 +0000
From:      bugzilla-noreply@freebsd.org
To:        virtualization@FreeBSD.org
Subject:   [Bug 254813] bhyve, on 12.2 host don't boot FreeBSD guest
Message-ID:  <bug-254813-27103@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D254813

            Bug ID: 254813
           Summary: bhyve, on 12.2 host don't boot FreeBSD guest
           Product: Base System
           Version: 12.2-RELEASE
          Hardware: amd64
                OS: Any
            Status: New
          Severity: Affects Some People
          Priority: ---
         Component: bhyve
          Assignee: virtualization@FreeBSD.org
          Reporter: dym@afalina.od.ua

# uname -a
FreeBSD test 12.2-RELEASE-p5 FreeBSD 12.2-RELEASE-p5 r369528 HOST  amd64

FreeBSD guest no boot on 12.2, but the same guests boot normal on 12.1.
After updating from 12.1 to 12.2 (or clean 12.2 install) FreeBSD guests (11=
.3,
11.4, 12.1, 12.2) fail to boot.
I use for comfort vm-bhyve.

Reproduce:
Install fresh 12.1, install vm-bhyve, install guest FreeBSD (11.4, 12.1, 12=
.2,
13.0 -- no difference).
Upgrade 12.1 to 12.2, install into bhyve new FreeBSD guest (or use of previ=
ous
installing guest).
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
# cat testguest.conf
loader=3D"bhyveload"
cpu=3D1
memory=3D4G
disk0_type=3D"ahci-hd"
disk0_name=3D"system.img"

# vm start guest
Starting FreeBSD12.2
  * found guest in /mnt/VMs/testguest
  * booting...

# vm console testguest
...
Root mount waiting for: CAM
ahcich0: SATA connect time=3D0us status=3D00000133
ahcich0: AHCI reset: device found
ahcich0: AHCI reset: device ready after 0ms
pass0 at ahcich0 bus 0 scbus0 target 0 lun 0
pass0: <BHYVE SATA DISK 001> ACS-2 ATA SATA 3.x device
pass0: Serial Number BHYVE-D4AB-EEFF-B53A
pass0: 600.000MB/s transfers (SATA 3.x, WDMA2, PIO 8192bytes)
pass0: Command Queueing enabled
ada0 at ahcich0 bus 0 scbus0 target 0 lun 0
ada0: <BHYVE SATA DISK 001> ACS-2 ATA SATA 3.x device
ada0: Serial Number BHYVE-D4AB-EEFF-B53A
ada0: 600.000MB/s transfers (SATA 3.x, WDMA2, PIO 8192bytes)
ada0: Command Queueing enabled
ada0: 30720MB (6914560 512 byte sectors)
GEOM: new disk ada0

Loader variables:

Manual root filesystem specification:
  <fstype>:<device> [options]
      Mount <device> using filesystem <fstype>
      and with the specified (optional) option list.

    eg. ufs:/dev/da0s1a
        zfs:zroot/ROOT/default
        cd9660:/dev/cd0 ro
          (which is equivalent to: mount -t cd9660 -o ro /dev/cd0 /)

  ?               List valid disk boot devices
  .               Yield 1 second (for background tasks)
  <empty line>    Abort manual input

mountroot>
<---------------------------------------------------------- I pressed ENTER
panic: mountroot: unable to (re-)mount root.
cpuid=3D0
time=3D2
KDB: stack backtrace:
#0 0xffffffff80c0a8f5 at kdb_backtrace+0x65
#1 0xffffffff80bbeb1b at vpanic+0x17b
#2 0xffffffff80bbe993 at panic+0x43
#3 0xffffffff80c88a95 at vfs_mountrootc+0x19a5
#4 0xffffffff80b57db7 at start_init+0x27
#5 0xffffffff80b8044e at fork_exit+0x7e
#6 0xffffffff81067f6e at fork_trampoline+0xe
Uptime: 2s
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D

If I write any of next string after "mountroot>"
 ufs:/dev/ada0a
 ufs:/dev/ada0
 ufs:ada0a
 ufs:ada0
instead of simple press ENTER -- boot normal:
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
Trying to mount root from ufs:ada0 []...
Setting hostuuid: 43693d91-95c3-11eb-a6ca-000000211010.
Setting hostid: 0xc8a69a1e.
Starting file system checks:
/dev/ada0: FILE SYSTEM CLEAN; SKIPPING CHECKS
/dev/ada0: clean, 6512400 free (1152 frags, 813906 blocks, 0.0% fragmentati=
on)
Mounting local filesystems:.
...
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D

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