Date: Wed, 17 Sep 2008 13:28:48 -0700 From: Jeremy Chadwick <koitsu@FreeBSD.org> To: Ed Maste <emaste@freebsd.org> Cc: Stephen Clark <sclark46@earthlink.net>, FreeBSD Stable <freebsd-stable@freebsd.org> Subject: Re: 6.3 reboot -d doesn't work Message-ID: <20080917202848.GA99931@icarus.home.lan> In-Reply-To: <20080917170346.GA49607@sandvine.com> References: <48D0EBCE.9030503@earthlink.net> <20080917162537.GB95431@icarus.home.lan> <20080917170346.GA49607@sandvine.com>
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On Wed, Sep 17, 2008 at 01:03:46PM -0400, Ed Maste wrote: > On Wed, Sep 17, 2008 at 09:25:37AM -0700, Jeremy Chadwick wrote: > > > On Wed, Sep 17, 2008 at 07:36:46AM -0400, Stephen Clark wrote: > > > I am trying to get a crash dump but am unable to with FreeBSD 6.3-RELEASE-p2 > > > > > > [...] > > > reboot -d > > > ... > > > dumping 255M 2 chunks > > > > > > > > > Then nothing - the system doesn't reboot and I have to hard reset it. > > > When it comes back up there is no crash file in /var/crash > > > [...] > > > > It's a known problem. If when the machine reboots, you forcefully enter > > single-user, you should be able to get the kernel dump using savecore. > > > > http://www.freebsd.org/cgi/query-pr.cgi?pr=conf/118255 > > Your PR doesn't look like Stephen's problem to me, since according to > his description the system hangs when trying to do the dump so there > won't be anything on the disk for savecore to save. You're right, thanks Ed. His "when it comes back up there is no crash file" is what threw me for a loop. Stephen, does the problem *only* happen when using the -d flag, or does the system lock up on reboot in general? If the latter, try using one or both of the following sysctls: hw.acpi.handle_reboot=1 hw.acpi.disable_on_reboot=1 If the lesser, I've no idea. -- | Jeremy Chadwick jdc at parodius.com | | Parodius Networking http://www.parodius.com/ | | UNIX Systems Administrator Mountain View, CA, USA | | Making life hard for others since 1977. PGP: 4BD6C0CB |
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