Can not boot after r203503. Unable to open /dev/ada(1/2)p3 for writing

[Alexey Shuvaev]

On Fri, Feb 26, 2010 at 02:47:06PM +0000, Paul Wootton wrote:
> Hi,
> 
> I have an unusual problem. Last night I tried updating from my
> old-ish kernel/world to an up to date version. I had been using
> 202500-ish successfully. I can build and install the newer world and
> kernel fine, but when I reboot I get the following
> 
> Trying to mount root from zfs:raid250/root
> ZFS WARNING: Unable to open /dev/ada1p3 for writing (error=1). ZFS
> WARNING: Unable to open /dev/ada2p3 for writing (error=1). ROOT
> MOUNT ERROR.
> If you have invalid mount options, reboot, and first try the
> following from the loader prompt:
>    set vfs.root.mountfrom.options=rw
> and then remove the invalid options from /etc/fstab
> loader variables:
>    vfs.root.mountfrom=zfs:raid250/root
>    vfs.root.mountfrom.options=rw
> 
> 
> Im using 2 drives in a ZFS mirror configuration (ada1 and ada2
> making raid250)
> 
> I tried going back over the older revisions, and the last kernel
> that I can build and boot is 203503. It seems the changes in 203504
> are what cause me the problems.
> 
> Now for the weird bit, I took a friends kernel (204324) and that
> boots fine. I pulled his kernel configuration and built against that
> (I had decided to remake my kernel configuration just before I tried
> updating). Still I get the same error. I have checked my
> /etc/make.conf and that looks right.
> 
> I attached my /etc/fstab and /etc/make.conf. Im using  an Intel
> Q8300 running amd64.
> 
> Anyone have any ideas? This is my work computer, so unfortunately I
> wont have access to it over the weekend but will be able to give
> more information if required on monday
> 
> Cheers
> 
> Paul
> 

> # Device        Mountpoint      FStype  	Options         Dump    Pass#
> raid250/root	/		zfs		rw      	0       0
> raid250/usr	/usr		zfs		rw      	0       0
> raid250/var	/var		zfs		rw  	 	0       0
> raid250/tmp	/tmp		zfs		rw,noatime      0       0
> /dev/ada1p2	none		swap		sw		0	0
> /dev/ada2p2	none		swap		sw		0	0
> linproc 	/usr/compat/linux/proc linprocfs rw 		0	0

> CPUTYPE?=core2
> 
> CFLAGS= -msse3 -mmmx -O2 -fno-strict-aliasing -pipe -s
	^^^^^^^^^^^^^^^
Are you sure you are allowed to use these flags to compile the kernel?
I would try removing this line completely.

> CXXFLAGS+= -fconserve-space
> 
> #CFLAGS= -march=native  -O2  -fno-strict-aliasing -pipe -s
> #CXXFLAGS+= -fconserve-space -fpermissive -Wl,-rpath-link,/usr/local/lib/gcc44
> #CC=gcc44
> #CXX=g++44
> #NO_CPU_CFLAGS=         # Don't add -march=<cpu> to CFLAGS automatically
> #NO_CPU_COPTFLAGS=      # Don't add -march=<cpu> to COPTFLAGS automatically
> 
> 
> KERNCONF=DEMOPHON
> 
> MAKE_IDEA=YES
> BATCH=YES
> WITH_JADETEX=YES
> 
> LOADER_ZFS_SUPPORT="YES"
> # added by use.perl 2009-07-20 19:58:21
> PERL_VERSION=5.8.9