https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=247544
Bug ID: 247544
Summary: zvol: unbootable system with root on zfs [regression]
Product: Base System
Version: CURRENT
Hardware: Any
OS: Any
Status: New
Severity: Affects Only Me
Priority: ---
Component: kern
Assignee: [email protected]
Reporter: [email protected]
I have bisected the source (took me a few days, wanted to report with more
info) and traced my issue down to revisions 362048 and 362047, coming from
differential: https://reviews.freebsd.org/D23478
Running HEAD the two afore mentioned revisions reverted results in a properly
working system.
What I am experiencing with the mentioned revisions applied is a hanging boot
sequence with following message (modulo typos because it's a transcript):
/etc/rc: DEBUG: checkyesno: zfs_enable is set to YES.
/etc/rc: DEBUG: load_kld: zfs kernel module already loaded.
/etc/rc: DEBUG: run_rc_command: doit: zvol_start
(no further messages are shown)
The setup itself is somewhat standard:
Created with the installer geli full disk encryption + zfs on root using the
whole disk (with partitions for EFI, boot, swap as created by the installer).
Inside the main pool, which contains the root dataset, I do have a zvol which
in turn is also encrypted with geli and I only unlock when necessary.
Hardware wise: this is a Lenovo A485 laptop with an AMD Ryzen processor (BIOS
being up to date) and the disk is nvme using the nda driver (as opposed to
nvd).
I'll try to re-create this with a simpler setup that isn't my work one, but
since this is scheduled to be MFC'd, I thought I'd notify this with as much
information as I could first.
Cheers,
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