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From: Attilio Rao <attilio@freebsd.org>
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Subject: Re: svn commit: r225794 - head/sys/kern
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2011/9/27 Attilio Rao <attilio@freebsd.org>:
> Author: attilio
> Date: Tue Sep 27 13:42:11 2011
> New Revision: 225794
> URL: http://svn.freebsd.org/changeset/base/225794
>
> Log:
> =C2=A0Revert r225372:
> =C2=A0wdog_kern_pat() acquires eventhandler mutex, thus it cannot work in
> =C2=A0kernel context (from where kdb_trap() runs).
>
> =C2=A0The right way to fix this is both offering the
> =C2=A0cpu-stop-on-panic-and-skip-locking logic and also a context for KDB
> =C2=A0to officially run. We can re-enable this (or a similar) improvement
> =C2=A0when these 2 patches hit the tree.
>
> =C2=A0Sponsored by: Sandvine Incorporated
> =C2=A0Discussed with: =C2=A0 =C2=A0 =C2=A0 emaste, rstone
> =C2=A0MFC after: =C2=A0 =C2=A0immediately

Forgot to mention:
Reported by: pho

Attilio


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