Date: Sat, 24 Jul 2004 18:21:06 -0600 From: Scott Long <scottl@freebsd.org> To: conrads@cox.net Cc: freebsd-current@freebsd.org Subject: Re: [amd64] Instability worse than ever Message-ID: <4102FCF2.60708@freebsd.org> In-Reply-To: <XFMail.20040724181805.conrads@cox.net> References: <XFMail.20040724181805.conrads@cox.net>
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Conrad J. Sabatier wrote: > For the last couple of days, my amd64 box has taken to spontaneously > rebooting. No panic, no coredump, nothing in logs, just reboots. > > These always seem to occur just as I'm clicking on something under > GNOME. > > Very mysterious! > Do you have INVARIANTS turned on? If you do, would you be able to hook up a serial console and see what the kernel is saying? Also, a quick hack that might help you is to take either sched_4bsd.c or sched_ule.c (depending on which you are using) and comment out the call to maybe_preempt(td) in sched_add() like so: + if 0 if (maybe_preempt(td)) return; + endif I think I understand most of the underlying problem with much of the recent (and not so recent) instability, but I haven't come up with an acceptable solution yet. If anyone is interested in helping (code, not test), please let me know. Scotthelp
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