Date: Tue, 25 Feb 2014 15:21:16 -0800 (PST) From: "Chris H" <bsd-lists@bsdforge.com> To: lev@freebsd.org Cc: stable@freebsd.org, hackers@freebsd.org Subject: Re: What is difference between loading module with loader and loading module wtih kldload? Message-ID: <9cb58e6ded37c79769da936cf17087da.authenticated@ultimatedns.net> In-Reply-To: <9890815.20140226013107@serebryakov.spb.ru> References: <9890815.20140226013107@serebryakov.spb.ru>
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> Hello, Hackers. > > I've upgraded my fileserver to 10-STABLE and got very strange (but > very-very painful) problem, which I could not reproduce on virtual machine > (VirtualBox). > > I'm using geom_raid5 module (and I'm its maintainer, yes) and module, built > for 10-STABLE (after world & kernel build & install & reboot), and loaded > via /boot/loader.conf is reason to almost instant crash after boot. > Sometimes system mounts filesystems before crash and sometimes not. Most of > time it is "page write: page not present", in different places. PS/2 > keyboard is always blocked after that, I could not drop to debugger. No > memory dump performed. Several times it turend off video output (!) right > after crash. > > But if I boot without this module, drop to single-user mode, load module > with kldload and continue booting with "exit" everything work smoothly for > hours! > > I understand, that it it some incompatibility between module new kernel, > but I could not reproduce it on VirtualBox instance, and I'm puzzled, that > this crash does not occur if module loaded by kldload! Maybe, here is some > hint in this? Warning, I'm no expert on 10.x. I see too many issues by ppl on the lists. So it seems too shakey for me. But, I have a couple of ideas, hoping they might help. I had a similar problem when using a very large drive, or mirror set (geom), a few years ago. FreeBSD didn't see/allocate all the memory available on the system. So it barfed, because it didn't have enough to allocate to handle the drive size. I'm sorry, but I have forgotten how to TELL FreeBSD how much memory it can use during boot tho. But if you know, then this might help you too. Hope this helps. --Chris > > -- > // Black Lion AKA Lev Serebryakov <lev@FreeBSD.org> > > _______________________________________________ > 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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