Date: Sat, 14 Aug 2004 16:23:45 +0200 (CEST) From: Lukas Ertl <le@FreeBSD.org> To: Robert Watson <rwatson@FreeBSD.org> Cc: Martin Blapp <mb@imp.ch> Subject: Re: Deadlocks with recent SMP current Message-ID: <20040814162252.J552@korben.in.tern> In-Reply-To: <Pine.NEB.3.96L.1040813182837.73100U-100000@fledge.watson.org> References: <Pine.NEB.3.96L.1040813182837.73100U-100000@fledge.watson.org>
next in thread | previous in thread | raw e-mail | index | archive | help
On Fri, 13 Aug 2004, Robert Watson wrote: > to be delivering in this hang (er, ouch). You might want to try putting a > kdb_enter() just after the T_NMI in both switch statements in trap() in > i386/i386/trap.c. This will cause the kernel to enter the debugger before > digging into the more general NMI code, which generates log messages, etc, > that may increase the chances of a problem. Even with this change I only get a 'kernel trap 19 with interrupts disabled' when sending the NMI, but no DDB prompt. cheers, le -- Lukas Ertl http://homepage.univie.ac.at/l.ertl/ le@FreeBSD.org http://people.freebsd.org/~le/
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20040814162252.J552>