Date: Wed, 22 Jan 2003 17:43:42 -0200 From: "Daniel C. Sobral" <dcs@tcoip.com.br> To: phk@FreeBSD.ORG Cc: freebsd-current@FreeBSD.ORG Subject: Re: I want a sysctl kern.allow_shooting_into_my_foot! Message-ID: <3E2EF46E.20600@tcoip.com.br> In-Reply-To: <25074.1043238359@critter.freebsd.dk> References: <25074.1043238359@critter.freebsd.dk>
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phk@FreeBSD.ORG wrote:
>
> Hmm, since this happens during boot, you cannot set the debug flag
> with sysctl in time, so you have to compile a custom kernel for it:
>
> in sys/geom/geom_kern.c change:
>
> int g_debugflags;
>
> to
> int g_debugflags = G_T_ACCESS;
>
> and recompile + reboot.
>
> This will make GEOM printf all "access" (ie: open/close) changes and
> you should hopefully be able to deduce where the open of your MO comes
> from.
>
> If this is not enough, you can try to set
>
> int g_debugflags = G_T_ACCESS | G_T_TOPOLOGY;
>
> But that will result in much more debugging output.
>
> You can turn this debugging off from userland with:
> sysctl kern.geom.debugflags=0
Why not make it a loader tunable?
--
Daniel C. Sobral (8-DCS)
Gerencia de Operacoes
Divisao de Comunicacao de Dados
Coordenacao de Seguranca
TCO
Fones: 55-61-313-7654/Cel: 55-61-9618-0904
E-mail: Daniel.Capo@tco.net.br
Daniel.Sobral@tcoip.com.br
dcs@tcoip.com.br
Outros:
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