Date: Fri, 14 Dec 2012 11:50:06 +0200 From: Andriy Gapon <avg@FreeBSD.org> To: Alexey Dokuchaev <danfe@nsu.ru> Cc: Glen Barber <gjb@FreeBSD.org>, stable@FreeBSD.org Subject: Re: 9.1 memstick install panics on boot Message-ID: <50CAF64E.70600@FreeBSD.org> In-Reply-To: <20121214080450.GA63557@regency.nsu.ru> References: <20121213073033.GA19514@regency.nsu.ru> <50C9ABA0.20009@FreeBSD.org> <20121213102651.GA51050@regency.nsu.ru> <20121213103635.GG1325@glenbarber.us> <20121214030208.GA15080@regency.nsu.ru> <20121214030747.GC1280@glenbarber.us> <20121214032349.GD1280@glenbarber.us> <20121214034056.GA22963@regency.nsu.ru> <20121214080450.GA63557@regency.nsu.ru>
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on 14/12/2012 10:04 Alexey Dokuchaev said the following: > On Fri, Dec 14, 2012 at 10:40:56AM +0700, Alexey Dokuchaev wrote: >> On Thu, Dec 13, 2012 at 10:23:49PM -0500, Glen Barber wrote: >>> If the memstick panics, I am not sure how much good the kernel symbols >>> will do for you. >> >> It's OK, as long as they are provided, I should be able to modify the >> memstick contents (like, after rw-mounted it) and copy debug-enabled >> kernel in /boot. > > On the second thought (try, actually) they are not too much helpful > indeed, as I cannot get crashdump for post-mortem analysis (when symbols > become useful), since panic happens so early debugger apparently has no > idea of where to store the dump. It looks like you obtained the boot messages using some sort of a remote console? If yes, you can try to use kgdb for a live remote debugging. > It seems I have to debug it the hard way > (hello printf's). > > Is it possible to cross build amd64 10.0 kernels on i386 8.3 machine? amd64 on i386 - yes, 10 on 8.3 - not so sure... -- Andriy Gapon
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