Date: Sun, 29 Mar 2015 14:29:42 -0500 From: Lars <lars@odin-corporation.com> To: freebsd-current@freebsd.org Subject: Is a high witness refcount indicative of a missing unlock? Message-ID: <1117D087-AD76-4A87-8798-AB5526BECF3A@odin-corporation.com>
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Hi, I am poking around for a cause for my repeating deadlock issues on my = system based on r 279869. ddb show witness show the =E2=80=9Cvnode = interlock=E2=80=9D and the =E2=80=9Czfs=E2=80=9D locks both with = reference counts over 200K. Obviously they are related, and there is a = find running (all the filesystems on this machine are zfs ( minus the = specialty ones like devfs). I don=E2=80=99t see any other withness entry with reference counts even = in the ballpark of these two, so does this indicate that we have a = vnode/zfs path were we don=E2=80=99t unlock? Thanks, Lars=
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