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To: freebsd-fs@freebsd.org
From: Miroslav Lachman <000.fbsd@quip.cz>
Subject: zfs diff: Unable to determine path or stats for object
Message-ID: <5A0B455C.1070002@quip.cz>
Date: Tue, 14 Nov 2017 20:34:52 +0100
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Hi,

I have a problem with zfs diff on our backup storage. I want to find 
some details about differencies but it almost always ends with error:

# zfs diff tank0/vol0/remote_backup/edith@autodel-2017-11-13_13-48 
tank0/vol0/remote_backup/edith@autodel-2017-11-14_13-48 > 
/tmp/zfs_diff_edith_13_14
Unable to determine path or stats for object 34939 in 
tank0/vol0/remote_backup/edith@autodel-2017-11-13_13-48: Invalid argument


Another two examples of error messages:

Unable to determine path or stats for object 108311 in 
tank0/vol0/remote_backup/elsa@autodel-2017-11-13_13-48: Invalid argument

Unable to determine path or stats for object 22061 in 
tank0/vol0/remote_backup/edith@autodel-2017-11-12_13-48: Invalid argument

What this error means?
How can I debug and fix this issues?

Kind regards
Miroslav Lachman