Date: Sun, 16 Nov 2003 22:56:44 -0600 From: Dan Nelson <dnelson@allantgroup.com> To: Kris Kennaway <kris@obsecurity.org> Cc: current@freebsd.org Subject: Re: Unable to dump on ccd partitions? Message-ID: <20031117045644.GC35692@dan.emsphone.com> In-Reply-To: <20031116233030.GA17937@xor.obsecurity.org> References: <20031116231020.GA17653@xor.obsecurity.org> <32746.1069024764@critter.freebsd.dk> <20031116233030.GA17937@xor.obsecurity.org>
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In the last episode (Nov 16), Kris Kennaway said: > On Mon, Nov 17, 2003 at 12:19:24AM +0100, Poul-Henning Kamp wrote: > > In message <20031116231020.GA17653@xor.obsecurity.org>, Kris Kennaway writes: > > ># dumpon /dev/ccd0b > > >dumpon: ioctl(DIOCSKERNELDUMP): Invalid argument > > > > > >Why doesn't this work? > > > > Because it would require the entire GEOM I/O engine to participate > > in dumping. > > > > As far as I know you never could dump on CCD. > > Blah, so much for device transparency :( I guess it depends on how much of the kernel you want to assume is useable after a panic, too... -- Dan Nelson dnelson@allantgroup.com
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