Date: Tue, 17 Apr 2007 17:32:32 +0100 (BST) From: Robert Watson <rwatson@FreeBSD.org> To: Tillman Hodgson <tillman@seekingfire.com> Cc: andre@FreeBSD.org, current@freebsd.org Subject: Re: Panic on boot with April 16 src (lengthy info attached) Message-ID: <20070417173005.O42234@fledge.watson.org> In-Reply-To: <20070417153357.GA1335@seekingfire.com> References: <20070417153357.GA1335@seekingfire.com>
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On Tue, 17 Apr 2007, Tillman Hodgson wrote: > Tue Apr 17 08:57:17 CST 2007 > > FreeBSD/i386 (athena.seekingfire.prv) (ttyd0) > > login: panic: mutex Giant not owned at /usr/src/sys/netinet/tcp_timer.c:286 > cpuid = 0 > KDB: enter: panic > [thread pid 13 tid 100003 ] > Stopped at kdb_enter+0x2b: nop > db> There's quite a bit of stuff in here, but I can speak to this one: Andre's recent TCP timer change causes TCP to run without Giant when debug.mpsafenet=0. This leads to panics with INVARIANTS, and non-MPSAFE code running without Giant otherwise. Robert N M Watson Computer Laboratory University of Cambridge
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