Date: Tue, 06 Jan 2015 19:55:09 +0100 (CET) From: sthaug@nethelp.no To: rodrigc@FreeBSD.org Cc: freebsd-stable@freebsd.org Subject: Re: 10.1-STABLE/i386 GENERIC + VIMAGE: Panic when going multiuser Message-ID: <20150106.195509.71132582.sthaug@nethelp.no> In-Reply-To: <CAG=rPVf=_Xe%2Bz_5RAGXPeX%2BWQbM_Z7pPhz7WFeGs0eEpZcDBTw@mail.gmail.com> References: <CAG=rPVcEidZUZmvCxiDzZg1c-A98yt_B=Jq0cPT-w2xmmevOgQ@mail.gmail.com> <20150105.232339.74735411.sthaug@nethelp.no> <CAG=rPVf=_Xe%2Bz_5RAGXPeX%2BWQbM_Z7pPhz7WFeGs0eEpZcDBTw@mail.gmail.com>
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> > Unfortunately, there is *no* IPv6 config on the box (aside from what > > might be done by default). rc.conf: > > > > hostname="verdi.nethelp.no" > > keymap="norwegian.iso.kbd" > > ifconfig_bge1="inet 10.0.0.2 netmask 255.255.255.252" > > sshd_enable="YES" > > dumpdev="AUTO" > > ddb_enable="YES" > > background_fsck="NO" > > > > > That config is minimal, so I don't see anything offhand which would trigger > IPv6. > But there could be something else running on the system that triggers it. > > Do you have *any* kernel modules which are installed on the system and not > built as part of the buildworld/buildkernel process? For example, kernel > modules > installed via a port? No modules. > Lastly, since your crash is triggered by "sysctl -a" with VIMAGE and DDB > added to a GENERIC kernel config in 10.1, > can you see the last sysctl which is printed out before the panic occurs? I have done a bit more testing with sysctl. There are two specific sysctls which trigger the panic: net.inet6.ip6.temppltime net.inet6.ip6.tempvltime All the other sysctls are fine, no panic generated. What can I do to help debug this further? The box where this happens isn't doing anything else useful at the moment, so can be crashed at will :-) Steinar Haug, Nethelp consulting, sthaug@nethelp.no
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