Date: Thu, 03 Apr 2008 15:31:59 +0100 From: Vince Hoffman <jhary@unsane.co.uk> To: Norberto Meijome <freebsd@meijome.net> Cc: Volker <volker@vwsoft.com>, freebsd-stable@freebsd.org Subject: Re: Q&A on textdumps (fwd) Message-ID: <47F4EA5F.50208@unsane.co.uk> In-Reply-To: <20080404012211.2bff6dd2@meijome.net> References: <20080401125534.D94491@fledge.watson.org> <20080402131511.2940ef2e@meijome.net> <47F3E3D8.4080308@vwsoft.com> <20080404012211.2bff6dd2@meijome.net>
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Norberto Meijome wrote: > On Wed, 02 Apr 2008 21:51:52 +0200 > Volker <volker@vwsoft.com> wrote: > >> while the system is experiencing a panic, it does not have any knowledge >> about filesystems and also does not know about the GELI swap space anymore. >> >> In this situation the geli encrypted swap will be overwritten by a dump >> (either minidump or the classical one). When the system boots up again, >> it will check $dumpdev for a dump and save it to $savecore before geli >> swap is brought up again. >> >> Or in short: geli backed swap should not do you any harm. > > Hi Volker, > That is what I had thought. But I clearly remember, back in 6.x the dump would be written to swap, then on restart, geli would kick in before savedump , therefore obliterating anything saved from the previous session. > > I will need to retest this...luckily 7-STABLE has been rock solid and haven't experienced many crashes. > > btw, how do I trigger a panic manually? :D > sysctl debug.kdb.panic=1 according to http://www.freebsd.org/doc/en_US.ISO8859-1/books/developers-handbook/kerneldebug-online-ddb.html anyway :) Vince > cheers, > B > > _________________________ > {Beto|Norberto|Numard} Meijome > > "A fanatic is one who can't change his mind and won't change the subject." > Sir Winston Churchill > > I speak for myself, not my employer. Contents may be hot. Slippery when wet. Reading disclaimers makes you go blind. Writing them is worse. You have been Warned. > _______________________________________________ > freebsd-stable@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-stable > To unsubscribe, send any mail to "freebsd-stable-unsubscribe@freebsd.org"
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