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Date: Mon, 3 Oct 2011 11:34:17 +0400
From: Lev Serebryakov <lev@FreeBSD.org>
Organization: FreeBSD
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To: current@freebsd.org, fs@FreeBSD.org, geom@freebsd.org
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Subject: Re: code in GEOM thread could not use vnode API (Was:
	alq_open_flags() panics in _mtx_lock_flags())
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Hello, Current.
You wrote 2 =EE=EA=F2=FF=E1=F0=FF 2011 =E3., 23:14:59:

>   It seems, that error only occurs when I call alq API from geom
> threads (from g_events, for example). Module, which is not GEOM
> class, could use this API without any problem!

>   Is it normal, that GEOM could not use vnode API? Is it normal, that
> this leads to panic, and not some diagnostic messages, even with
> WITNESS and other diagnostic options turned on?

  not holding (explicitly release before call) topology lock doesn't
 help.

--=20
// Black Lion AKA Lev Serebryakov <lev@FreeBSD.org>