Date: Tue, 27 Nov 2007 20:17:33 +0100 From: "Attilio Rao" <attilio@freebsd.org> To: "Jack Vogel" <jfvogel@gmail.com> Cc: freebsd-current@freebsd.org, Mark Atkinson <atkin901@yahoo.com> Subject: Re: em0 panic: mutex em0 not owned Message-ID: <3bbf2fe10711271117w18707adfxc42a7c65dd15445b@mail.gmail.com> In-Reply-To: <3bbf2fe10711271111w5bc7f2b1ta4264cb14b6f1626@mail.gmail.com> References: <4744EBA4.7020209@clearchain.com> <3bbf2fe10711220408t30136430s15fdba0ebcbbfa66@mail.gmail.com> <3bbf2fe10711220427s38561159k4879d0c792d09694@mail.gmail.com> <474B4876.9020209@clearchain.com> <3bbf2fe10711261431s1b1bd697n46d370900d5fe9c0@mail.gmail.com> <2a41acea0711261434u817eb06xe05eba8447afc3ae@mail.gmail.com> <fihfhp$7ts$1@ger.gmane.org> <2a41acea0711270925w55742526n7ef77b1fcef3016f@mail.gmail.com> <3bbf2fe10711271111w5bc7f2b1ta4264cb14b6f1626@mail.gmail.com>
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2007/11/27, Attilio Rao <attilio@freebsd.org>: > 2007/11/27, Jack Vogel <jfvogel@gmail.com>: > > On Nov 27, 2007 8:10 AM, Mark Atkinson <atkin901@yahoo.com> wrote: > > > > > > > > Is this expected after the fix? > > > > > > acquiring duplicate lock of same type: "network driver" > > > 1st em0 @ /usr/src/sys/dev/em/if_em.c:1018 > > > 2nd em0 @ /usr/src/sys/dev/em/if_em.c:1252 > > > > Same type, different lock, I don't see a problem unless > > there's some subtle thing I'm not aware of? > > do you use the same name in mutex initialization? I just checked and it seems so. WITNESS uses lock names for some checks like this, so you should use a different ptr for names. Attilio -- Peace can only be achieved by understanding - A. Einstein
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