Date: Mon, 7 Nov 2022 17:53:01 -0600 (CST) From: Dan The Man <dan@sunsaturn.com> To: freebsd-current@FreeBSD.org Subject: vfs.zfs.vol.recursive hang makes it impossible to mount zvol Message-ID: <da17977d-b37e-aa79-372f-326b2698f418@sunsaturn.com>
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router:~ # uname -a
FreeBSD router.sunsaturn.com 14.0-CURRENT FreeBSD 14.0-CURRENT #1
main-n259058-105019e0d6c: Sat Nov 5 05:37:28 CDT 2022
dan@router.sunsaturn.com:/usr/obj/usr/src/amd64.amd64/sys/MYKERNEL amd64
router:~ # zfs create -V30G -o volmode=full zroot/asterisk2
(install a ZFS guest on it and call zroot testing)
router:~ # gpart show /dev/zvol/zroot/asterisk2
=> 40 62914480 zvol/zroot/asterisk2 GPT (30G)
40 532480 1 efi (260M)
532520 2008 - free - (1.0M)
534528 16777216 2 freebsd-swap (8.0G)
17311744 45600768 3 freebsd-zfs (22G)
62912512 2008 - free - (1.0M)
router:~ # gdisk -l /dev/zvol/zroot/asterisk2
GPT fdisk (gdisk) version 1.0.9
Partition table scan:
MBR: protective
BSD: not present
APM: not present
GPT: present
Found valid GPT with protective MBR; using GPT.
Disk /dev/zvol/zroot/asterisk2: 62914560 sectors, 30.0 GiB
Sector size (logical): 512 bytes
Disk identifier (GUID): 8ACD2112-5EBF-11ED-8F56-00A098E3C14E
Partition table holds up to 128 entries
Main partition table begins at sector 2 and ends at sector 33
First usable sector is 40, last usable sector is 62914519
Partitions will be aligned on 8-sector boundaries
Total free space is 4016 sectors (2.0 MiB)
Number Start (sector) End (sector) Size Code Name
1 40 532519 260.0 MiB EF00 efiboot0
2 534528 17311743 8.0 GiB A502 swap0
3 17311744 62912511 21.7 GiB A504 zfs0
router:~ # zpool import
pool: testing
id: 8013833172609421701
state: UNAVAIL
status: One or more devices are missing from the system.
action: The pool cannot be imported. Attach the missing
devices and try again.
see: https://openzfs.github.io/openzfs-docs/msg/ZFS-8000-3C
config:
testing UNAVAIL insufficient replicas
zvol/zroot/asterisk2p3 UNAVAIL cannot open
router:~ # sysctl vfs.zfs.vol.recursive=1
vfs.zfs.vol.recursive: 0 -> 1
router:~ # zpool import
pool: testing
id: 8013833172609421701
state: ONLINE
action: The pool can be imported using its name or numeric identifier.
config:
testing ONLINE
zvol/zroot/asterisk2p3 ONLINE
router:~ # zpool import -fR /mnt testing
This hangs forever....
The only way to import that pool from the zvol that I know of.....
Dan
--
Dan The Man
CEO & Founder
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