Date: Fri, 26 Apr 2002 02:12:23 +0100 From: Brian Somers <brian@freebsd-services.com> To: Ian Dowse <iedowse@maths.tcd.ie> Cc: Harti Brandt <brandt@fokus.gmd.de>, brian@freebsd.org, current@freebsd.org Subject: Re: Revision 1.88 of kern_linker.c breaks module loading for diskless Message-ID: <200204260112.g3Q1CNxH066034@hak.lan.Awfulhak.org> In-Reply-To: Message from Ian Dowse <iedowse@maths.tcd.ie> of "Fri, 26 Apr 2002 01:09:16 BST." <200204260109.aa01691@salmon.maths.tcd.ie>
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> In message <20020425184846.Q795-100000@beagle.fokus.gmd.de>, Harti Brandt write
> s:
> >the check for rootdev != NODEV introduced in rev 1.88 breaks loading of
> >kernel modules from an NFS mounted root in diskless configurations.
> >Dropping in gdb and printing rootdev shows -1 which is, I assume, NODEV.
>
> Ah, that would explain a problem I saw recently on a netbooted box
> where kldload only worked with full module paths. Could `rootvnode'
> be checked for NULL instead?
Hi,
The intent is to discover whether there's a filesystem yet (vn_open()
will die horribly otherwise).
My use of rootdev is (obviously) flawed. AFAICT, either rootvp
or rootvnode should be used, but I can't tell the difference between
the two at a glance and am lacking development resources right now
(my development box seems to enjoy dropping cores too frequently to
build a kernel at the moment).
If somebody could test that rootvnode or rootvp are non-NULL after
an NFS-mounted root is set up, I'd thankfully approve the quick
fix... :*)
Cheers.
> Ian
--
Brian <brian@freebsd-services.com> <brian@Awfulhak.org>
http://www.freebsd-services.com/ <brian@[uk.]FreeBSD.org>
Don't _EVER_ lose your sense of humour ! <brian@[uk.]OpenBSD.org>
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