https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=230732
Bug ID: 230732
Summary: Panic when using soft updates on a GELI volume in 11.2
Product: Base System
Version: 11.2-RELEASE
Hardware: amd64
OS: Any
Status: New
Severity: Affects Some People
Priority: ---
Component: kern
Assignee: [email protected]
Reporter: [email protected]
Created attachment 196318
--> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=196318&action=edit
Screenshot of the panic message
After updating to 11.2-RELEASE, FreeBSD panics when there is heavy disk
activity on a GELI volume with soft updates enabled.
I can reproduce this by duplicating a 8TB volume via rsync to the target disk,
it panics every time with the same message:
"panic: softdep_deallocate_dependencies: dangling deps"
Disabling soft updates (tunefs -n disable) will allow the operation to finish.
The system is stable otherwise (memtest86 returns ok after a night of testing),
and the backup worked flawlessly on 11.1 and a volume without GELI on 11.2.
Attached you will find a screenshot of the panic, unfortunately I was not able
to get this in text form.
There has also been a second report with the same issue on reddit:
https://www.reddit.com/r/freebsd/comments/8uylxc/softdep_panics_on_112release/
Please let me know if I can provide any further information, I am happy to help
to get this cleared up.
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