https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=237067
Bug ID: 237067
Summary: [PANIC] [ZFS] [GELI] Crash in vdev_dtl_reassess when
using GELI with autodetach
Product: Base System
Version: 12.0-RELEASE
Hardware: Any
OS: Any
Status: New
Severity: Affects Only Me
Priority: ---
Component: kern
Assignee: b...@freebsd.org
Reporter: v...@endrift.com
When using GELI with autodetach enabled (which it is by default if using
geli_devices in rc.conf) enabled, ZFS can trigger a panic.
Steps to reproduce:
- Create a VM with FreeBSD 12.0-RELEASE rootfs and two attached drives, which
I'll be calling ada0 and ada1 for simplicity
- Format the devices with geli init with no passphrase:
# dd if=/dev/random of=/root/k bs=64 count=1
# geli init -PK /root/k ada0
# geli init -PK /root/k ada1
- Attach to the devices and set up a mirrored zpool (I don't know if the
mirroring is needed, this is just what my setup was when I discovered it):
# geli attach -pk /root/k ada0
# geli attach -pk /root/k ada1
# zpool create pool mirror ada0.eli ada1.eli
- Ensure zfs and geli load at boot:
# cat >> /boot/loader.conf <<END
zfs_load="YES"
geom_eli_load="YES"
END
# cat >> /etc/rc.conf <<END
geli_devices="ada0 ada1"
geli_ada0_flags="-p -k /root/k"
geli_ada1_flags="-p -k /root/k"
END
- Reboot the VM and run `zpool status`
Expected results:
- GELI and ZFS work and it shows the status of `pool`
Actual results:
- Kernel panic in vdev_dtl_reassess
I don't seem to have a way to gather the crashlog from this VM (I'm using
VMware Player on Linux to reproduce at the moment) otherwise I'd attach it.
Configuration:
- Running stock amd64 FreeBSD 12.0-RELEASE on a fresh installation.
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