Date: Fri, 2 Mar 2007 13:59:30 -0500 From: Kris Kennaway <kris@obsecurity.org> To: Kris Kennaway <kris@obsecurity.org>, jhb@FreeBSD.org Cc: current@FreeBSD.org Subject: Re: Someone broke diskless booting Message-ID: <20070302185930.GA30505@xor.obsecurity.org> In-Reply-To: <20070225233333.GA80065@xor.obsecurity.org> References: <20070225233333.GA80065@xor.obsecurity.org>
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It's not obvious to me how this happened, but binary searching narrows
down the cause to the following commit:
jhb 2007-02-23 19:46:59 UTC
FreeBSD src repository
Modified files:
sys/kern kern_linker.c
Log:
Drop the global kernel linker lock while executing the sysinit's for a
freshly-loaded kernel module. To avoid various unload races, hide linker
files whose sysinit's are being run from userland so that they can't be
kldunloaded until after all the sysinit's have finished.
Tested by: gallatin
Revision Changes Path
1.145 +21 -15 src/sys/kern/kern_linker.c
Kris
On Sun, Feb 25, 2007 at 06:33:33PM -0500, Kris Kennaway wrote:
> Some time in the past week or so someone committed a change to the
> kernel that broke diskless booting:
>=20
> Trying to mount root from nfs:
> fxp0: link state changed to UP
> NFS ROOT: 69.147.83.43:/a/nfs/7.dir1
> Interface fxp0 IP-Address 69.147.83.96 Broadcast 69.147.83.127
> mdmfs: mdconfig (attach) exited with error code 1
> cp: /etc/gss/mech: Read-only file system
> cp: /etc/gss/qop: Read-only file system
> cp: utimes: /etc/gss: Read-only file system
> cp: /etc/ppp/ppp.conf: Read-only file system
> ...
> nfs server 69.147.83.43:/a/nfs/7.dir1: not responding
> nfs server 69.147.83.43:/a/nfs/7.dir1: not responding
> nfs server 69.147.83.43:/a/nfs/7.dir1: not responding
>=20
> Kris
>=20
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